-;;; This code started from the following message of long time ago (IZ):
+;;; cperl-mode.el --- Perl code editing commands for Emacs
+
+;; Copyright (C) 1985, 86, 87, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+;; 2000, 2003, 2005, 2006
+;; Free Software Foundation, Inc.
+
+;; Author: Ilya Zakharevich and Bob Olson
+;; Maintainer: Ilya Zakharevich <ilyaz@cpan.org>
+;; Keywords: languages, Perl
+
+;; This file is part of GNU Emacs.
+
+;;; This code started from the following message of long time ago
+;;; (IZ), but Bob does not maintain this mode any more:
;;; From: olson@mcs.anl.gov (Bob Olson)
;;; Newsgroups: comp.lang.perl
;;; Subject: cperl-mode: Another perl mode for Gnuemacs
;;; Date: 14 Aug 91 15:20:01 GMT
-;; Perl code editing commands for Emacs
-;; Copyright (C) 1985-1996 Bob Olson, Ilya Zakharevich
+;; Copyright (C) Ilya Zakharevich and Bob Olson
-;; This file is not (yet) part of GNU Emacs. It may be distributed
+;; This file may be distributed
;; either under the same terms as GNU Emacs, or under the same terms
;; as Perl. You should have received a copy of Perl Artistic license
;; along with the Perl distribution.
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
-
-;;; Corrections made by Ilya Zakharevich ilya@math.mps.ohio-state.edu
+;;; Corrections made by Ilya Zakharevich ilyaz@cpan.org
;;; XEmacs changes by Peter Arius arius@informatik.uni-erlangen.de
-;; $Id: cperl-mode.el,v 1.29 1996/11/18 23:10:26 ilya Exp ilya $
+;;; Commentary:
-;;; To use this mode put the following into your .emacs file:
+;; $Id: cperl-mode.el,v 5.23 2007/02/15 11:34:23 vera Exp vera $
+
+;;; If your Emacs does not default to `cperl-mode' on Perl files:
+;;; To use this mode put the following into
+;;; your .emacs file:
;; (autoload 'perl-mode "cperl-mode" "alternate mode for editing Perl programs" t)
-;;; You can either fine-tune the bells and whistles of this mode or
-;;; bulk enable them by putting
+;; You can either fine-tune the bells and whistles of this mode or
+;; bulk enable them by putting
;; (setq cperl-hairy t)
-;;; in your .emacs file. (Emacs rulers do not consider it politically
-;;; correct to make whistles enabled by default.)
+;; in your .emacs file. (Emacs rulers do not consider it politically
+;; correct to make whistles enabled by default.)
+
+;; DO NOT FORGET to read micro-docs (available from `Perl' menu) <<<<<<
+;; or as help on variables `cperl-tips', `cperl-problems', <<<<<<
+;; `cperl-non-problems', `cperl-praise', `cperl-speed'. <<<<<<
-;;; Additional useful commands to put into your .emacs file:
+;; Additional useful commands to put into your .emacs file (before
+;; RMS Emacs 20.3):
;; (setq auto-mode-alist
-;; (append '(("\\.[pP][Llm]$" . perl-mode)) auto-mode-alist ))
+;; (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
;; (setq interpreter-mode-alist (append interpreter-mode-alist
;; '(("miniperl" . perl-mode))))
-;;; The mode information (on C-h m) provides customization help.
-;;; If you use font-lock feature of this mode, it is advisable to use
-;;; either lazy-lock-mode or fast-lock-mode (available on ELisp
-;;; archive in files lazy-lock.el and fast-lock.el). I prefer lazy-lock.
+;; The mode information (on C-h m) provides some customization help.
+;; If you use font-lock feature of this mode, it is advisable to use
+;; either lazy-lock-mode or fast-lock-mode. I prefer lazy-lock.
-;;; Faces used now: three faces for first-class and second-class keywords
-;;; and control flow words, one for each: comments, string, labels,
-;;; functions definitions and packages, arrays, hashes, and variable
-;;; definitions. If you do not see all these faces, your font-lock does
-;;; not define them, so you need to define them manually. Maybe you have
-;;; an obsolete font-lock from 19.28 or earlier. Upgrade.
+;; Faces used now: three faces for first-class and second-class keywords
+;; and control flow words, one for each: comments, string, labels,
+;; functions definitions and packages, arrays, hashes, and variable
+;; definitions. If you do not see all these faces, your font-lock does
+;; not define them, so you need to define them manually.
+;; Maybe you have an obsolete font-lock from 19.28 or earlier. Upgrade.
-;;; If you have a grayscale monitor, and do not have the variable
-;;; font-lock-display-type bound to 'grayscale, insert
+;; If you have a grayscale monitor, and do not have the variable
+;; font-lock-display-type bound to 'grayscale, insert
-;;; (setq font-lock-display-type 'grayscale)
+;; (setq font-lock-display-type 'grayscale)
-;;; into your .emacs file.
+;; into your .emacs file (this is relevant before RMS Emacs 20).
-;;;; This mode supports font-lock, imenu and mode-compile. In the
-;;;; hairy version font-lock is on, but you should activate imenu
-;;;; yourself (note that mode-compile is not standard yet). Well, you
-;;;; can use imenu from keyboard anyway (M-x imenu), but it is better
-;;;; to bind it like that:
+;; This mode supports font-lock, imenu and mode-compile. In the
+;; hairy version font-lock is on, but you should activate imenu
+;; yourself (note that mode-compile is not standard yet). Well, you
+;; can use imenu from keyboard anyway (M-x imenu), but it is better
+;; to bind it like that:
;; (define-key global-map [M-S-down-mouse-3] 'imenu)
+;;; Font lock bugs as of v4.32:
+
+;; The following kinds of Perl code erroneously start strings:
+;; \$` \$' \$"
+;; $opt::s $opt_s $opt{s} (s => ...) /\s+.../
+;; likewise with m, tr, y, q, qX instead of s
+
;;; In fact the version of font-lock that this version supports can be
;;; much newer than the version you actually have. This means that a
;;; lot of faces can be set up, but are not visible on your screen
;;; Updates: ========================================
-;;; Made less hairy by default: parentheses not electric,
+;;; Made less hairy by default: parentheses not electric,
;;; linefeed not magic. Bug with abbrev-mode corrected.
;;;; After 1.4:
;;; Better indentation:
-;;; subs inside braces should work now,
+;;; subs inside braces should work now,
;;; Toplevel braces obey customization.
;;; indent-for-comment knows about bad cases, cperl-indent-for-comment
;;; moves cursor to a correct place.
-;;; cperl-indent-exp written from the scratch! Slow... (quadratic!) :-(
+;;; cperl-indent-exp written from the scratch! Slow... (quadratic!) :-(
;;; (50 secs on DB::DB (sub of 430 lines), 486/66)
;;; Minor documentation fixes.
;;; Imenu understands packages as prefixes (including nested).
;;; `cperl-fill-paragraph' done.
;;; Better package support for `imenu'.
;;; Progress indicator for indentation (with `imenu' loaded).
-;;; `Cperl-set' was busted, now setting the individual hairy option
+;;; `Cperl-set' was busted, now setting the individual hairy option
;;; should be better.
;;;; After 1.6:
;;; Menu done.
;;; New config variables `cperl-close-paren-offset' and `cperl-comment-column'.
;;; Bugs with `cperl-auto-newline' corrected.
-;;; `cperl-electric-lbrace' can work with `cperl-auto-newline' in situation
+;;; `cperl-electric-lbrace' can work with `cperl-auto-newline' in situation
;;; like $hash{.
;;;; 1.7 XEmacs (arius@informatik.uni-erlangen.de):
;;; Todo (at least):
;;; - use emacs-vers.el (http://www.cs.utah.edu/~eeide/emacs/emacs-vers.el.gz)
;;; for portable code?
-;;; - should `cperl-mode' do a
+;;; - should `cperl-mode' do a
;;; (if (featurep 'easymenu) (easy-menu-add cperl-menu))
;;; or should this be left to the user's `cperl-mode-hook'?
;;; Some bugs introduced by the above fix corrected (IZ ;-).
;;; Some bugs under XEmacs introduced by the correction corrected.
-;;; Some more can remain since there are two many different variants.
+;;; Some more can remain since there are two many different variants.
;;; Please feedback!
-;;; We do not support fontification of arrays and hashes under
+;;; We do not support fontification of arrays and hashes under
;;; obsolete font-lock any more. Upgrade.
;;;; after 1.8 Minor bug with parentheses.
;;; Arglist for auto-fill-mode was incorrect.
;;;; After 1.12:
-;;; `cperl-lineup-step' and `cperl-lineup' added: lineup constructions
+;;; `cperl-lineup-step' and `cperl-lineup' added: lineup constructions
;;; vertically.
;;; `cperl-do-auto-fill' updated for 19.29 style.
;;; `cperl-info-on-command' now has a default.
;;; May highlight pods and here-documents: see `cperl-pod-here-scan',
;;; `cperl-pod-here-fontify', `cperl-pod-face'. Does not use this info
;;; for indentation so far.
-;;; Fontification updated to 19.30 style.
+;;; Fontification updated to 19.30 style.
;;; The change 19.29->30 did not add all the required functionality,
;;; but broke "font-lock-extra.el". Get "choose-color.el" from
-;;; ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
+;;; http://ilyaz.org/software/emacs
;;;; After 1.16:
;;; else # comment
;;; recognized as a start of a block.
;;; Two different font-lock-levels provided.
;;; `cperl-pod-head-face' introduced. Used for highlighting.
-;;; `imenu' marks pods, +Packages moved to the head.
+;;; `imenu' marks pods, +Packages moved to the head.
;;;; After 1.17:
;;; Scan for pods highlights here-docs too.
;;; POD headers were supposed to fill one line only.
;;;; After 1.18:
-;;; `font-lock-keywords' were set in 19.30 style _always_. Current scheme
+;;; `font-lock-keywords' were set in 19.30 style _always_. Current scheme
;;; may break under XEmacs.
;;; `cperl-calculate-indent' dis suppose that `parse-start' was defined.
;;; `fontified' tag is added to fontified text as well as `lazy-lock' (for
;;; Minor bugs with POD marking.
;;;; After 1.25 (probably not...)
-;;; `cperl-info-page' introduced.
+;;; `cperl-info-page' introduced.
;;; To make `uncomment-region' working, `comment-region' would
;;; not insert extra space.
-;;; Here documents delimiters better recognized
+;;; Here documents delimiters better recognized
;;; (empty one, and non-alphanums in quotes handled). May be wrong with 1<<14?
;;; `cperl-db' added, used in menu.
;;; imenu scan removes text-properties, for better debugging
;;; Minor updates to `cperl-short-docs'.
;;; Will not consider <<= as start of here-doc.
-(defvar cperl-extra-newline-before-brace nil
+;;;; After 1.29
+;;; Added an extra advice to look into Micro-docs. ;-).
+;;; Enclosing of region when you press a closing parenth is regulated by
+;;; `cperl-electric-parens-string'.
+;;; Minor updates to `cperl-short-docs'.
+;;; `initialize-new-tags-table' called only if present (Does this help
+;;; with generation of tags under XEmacs?).
+;;; When creating/updating tag files, new info is written at the old place,
+;;; or at the end (is this a wanted behaviour? I need this in perl build directory).
+
+;;;; After 1.30
+;;; All the keywords from keywords.pl included (maybe with dummy explanation).
+;;; No auto-help inside strings, comment, here-docs, formats, and pods.
+;;; Shrinkwrapping of info, regulated by `cperl-max-help-size',
+;;; `cperl-shrink-wrap-info-frame'.
+;;; Info on variables as well.
+;;; Recognision of HERE-DOCS improved yet more.
+;;; Autonewline works on `}' without warnings.
+;;; Autohelp works again on $_[0].
+
+;;;; After 1.31
+;;; perl-descr.el found its author - hi, Johan!
+;;; Some support for correct indent after here-docs and friends (may
+;;; be superseeded by eminent change to Emacs internals).
+;;; Should work with older Emaxen as well ( `-style stuff removed).
+
+;;;; After 1.32
+
+;;; Started to add support for `syntax-table' property (should work
+;;; with patched Emaxen), controlled by
+;;; `cperl-use-syntax-table-text-property'. Currently recognized:
+;;; All quote-like operators: m, s, y, tr, qq, qw, qx, q,
+;;; // in most frequent context:
+;;; after block or
+;;; ~ { ( = | & + - * ! , ;
+;;; or
+;;; while if unless until and or not xor split grep map
+;;; Here-documents, formats, PODs,
+;;; ${...}
+;;; 'abc$'
+;;; sub a ($); sub a ($) {}
+;;; (provide 'cperl-mode) was missing!
+;;; `cperl-after-expr-p' is now much smarter after `}'.
+;;; `cperl-praise' added to mini-docs.
+;;; Utilities try to support subs-with-prototypes.
+
+;;;; After 1.32.1
+;;; `cperl-after-expr-p' is now much smarter after "() {}" and "word {}":
+;;; if word is "else, map, grep".
+;;; Updated for new values of syntax-table constants.
+;;; Uses `help-char' (at last!) (disabled, does not work?!)
+;;; A couple of regexps where missing _ in character classes.
+;;; -s could be considered as start of regexp, 1../blah/ was not,
+;;; as was not /blah/ at start of file.
+
+;;;; After 1.32.2
+;;; "\C-hv" was wrongly "\C-hf"
+;;; C-hv was not working on `[index()]' because of [] in skip-chars-*.
+;;; `__PACKAGE__' supported.
+;;; Thanks for Greg Badros: `cperl-lazy-unstall' is more complete,
+;;; `cperl-get-help' is made compatible with `query-replace'.
+
+;;;; As of Apr 15, development version of 19.34 supports
+;;;; `syntax-table' text properties. Try setting
+;;;; `cperl-use-syntax-table-text-property'.
+
+;;;; After 1.32.3
+;;; We scan for s{}[] as well (in simplest situations).
+;;; We scan for $blah'foo as well.
+;;; The default is to use `syntax-table' text property if Emacs is good enough.
+;;; `cperl-lineup' is put on C-M-| (=C-M-S-\\).
+;;; Start of `cperl-beautify-regexp'.
+
+;;;; After 1.32.4
+;;; `cperl-tags-hier-init' did not work in text-mode.
+;;; `cperl-noscan-files-regexp' had a misprint.
+;;; Generation of Class Hierarchy was broken due to a bug in `x-popup-menu'
+;;; in 19.34.
+
+;;;; After 1.33:
+;;; my,local highlight vars after {} too.
+;;; TAGS could not be created before imenu was loaded.
+;;; `cperl-indent-left-aligned-comments' created.
+;;; Logic of `cperl-indent-exp' changed a little bit, should be more
+;;; robust w.r.t. multiline strings.
+;;; Recognition of blah'foo takes into account strings.
+;;; Added '.al' to the list of Perl extensions.
+;;; Class hierarchy is "mostly" sorted (need to rethink algorthm
+;;; of pruning one-root-branch subtrees to get yet better sorting.)
+;;; Regeneration of TAGS was busted.
+;;; Can use `syntax-table' property when generating TAGS
+;;; (governed by `cperl-use-syntax-table-text-property-for-tags').
+
+;;;; After 1.35:
+;;; Can process several =pod/=cut sections one after another.
+;;; Knows of `extproc' when under `emx', indents with `__END__' and `__DATA__'.
+;;; `cperl-under-as-char' implemented (XEmacs people like broken behaviour).
+;;; Beautifier for regexps fixed.
+;;; `cperl-beautify-level', `cperl-contract-level' coded
+;;;
+;;;; Emacs's 20.2 problems:
+;;; `imenu.el' has bugs, `imenu-add-to-menubar' does not work.
+;;; Couple of others problems with 20.2 were reported, my ability to check/fix
+;;; them is very reduced now.
+
+;;;; After 1.36:
+;;; 'C-M-|' in XEmacs fixed
+
+;;;; After 1.37:
+;;; &&s was not recognized as start of regular expression;
+;;; Will "preprocess" the contents of //e part of s///e too;
+;;; What to do with s# blah # foo #e ?
+;;; Should handle s;blah;foo;; better.
+;;; Now the only known problems with regular expression recognition:
+;;;;;;; s<foo>/bar/ - different delimiters (end ignored)
+;;;;;;; s/foo/\\bar/ - backslash at start of subst (made into one chunk)
+;;;;;;; s/foo// - empty subst (made into one chunk + '/')
+;;;;;;; s/foo/(bar)/ - start-group at start of subst (internal group will not match backwards)
+
+;;;; After 1.38:
+;;; We highlight closing / of s/blah/foo/e;
+;;; This handles s# blah # foo #e too;
+;;; s//blah/, s///, s/blah// works again, and s#blah## too, the algorithm
+;;; is much simpler now;
+;;; Next round of changes: s\\\ works, s<blah>/foo/,
+;;; comments between the first and the second part allowed
+;;; Another problem discovered:
+;;;;;;; s[foo] <blah>e - e part delimited by different <> (will not match)
+;;; `cperl-find-pods-heres' somehow maybe called when string-face is undefined
+;;; - put a stupid workaround for 20.1
+
+;;;; After 1.39:
+;;; Could indent here-docs for comments;
+;;; These problems fixed:
+;;;;;;; s/foo/\\bar/ - backslash at start of subst (made into two chunk)
+;;;;;;; s[foo] <blah>e - "e" part delimited by "different" <> (will match)
+;;; Matching brackets honor prefices, may expand abbreviations;
+;;; When expanding abbrevs, will remove last char only after
+;;; self-inserted whitespace;
+;;; More convenient "Refress hard constructs" in menu;
+;;; `cperl-add-tags-recurse', `cperl-add-tags-recurse-noxs'
+;;; added (for -batch mode);
+;;; Better handling of errors when scanning for Perl constructs;
+;;;;;;; Possible "problem" with class hierarchy in Perl distribution
+;;;;;;; directory: ./ext duplicates ./lib;
+;;; Write relative paths for generated TAGS;
+
+;;;; After 1.40:
+;;; s /// may be separated by "\n\f" too;
+;;; `s #blah' recognized as a comment;
+;;; Would highlight s/abc//s wrong;
+;;; Debugging code in `cperl-electric-keywords' was leaking a message;
+
+;;;; After 1.41:
+;;; RMS changes for 20.3 merged
+
+;;;; 2.0.1.0: RMS mode (has 3 misprints)
+
+;;;; After 2.0:
+;;; RMS whitespace changes for 20.3 merged
+
+;;;; After 2.1:
+;;; History updated
+
+;;;; After 2.2:
+;;; Merge `c-style-alist' since `c-mode' is no more. (Somebody who
+;;; uses the styles should check that they work OK!)
+;;; All the variable warnings go away, some undef functions too.
+
+;;;; After 2.3:
+;;; Added `cperl-perldoc' (thanks to Anthony Foiani <afoiani@uswest.com>)
+;;; Added `cperl-pod-to-manpage' (thanks to Nick Roberts <Nick.Roberts@src.bae.co.uk>)
+;;; All the function warnings go away.
+
+;;;; After 2.4:
+;;; `Perl doc', `Regexp' submenus created (latter to allow short displays).
+;;; `cperl-clobber-lisp-bindings' added.
+;;; $a->y() is not y///.
+;;; `cperl-after-block-p' was missing a `save-excursion' => wrong results.
+;;; `cperl-val' was defined too late.
+;;; `cperl-init-faces' was failing.
+;;; Init faces when loading `ps-print'.
+
+;;;; After 2.4:
+;;; `cperl-toggle-autohelp' implemented.
+;;; `while SPACE LESS' was buggy.
+;;; `-text' in `[-text => 1]' was not highlighted.
+;;; `cperl-after-block-p' was FALSE after `sub f {}'.
+
+;;;; After 2.5:
+;;; `foreachmy', `formy' expanded too.
+;;; Expand `=pod-directive'.
+;;; `cperl-linefeed' behaves reasonable in POD-directive lines.
+;;; `cperl-electric-keyword' prints a message, governed by
+;;; `cperl-message-electric-keyword'.
+
+;;;; After 2.6:
+;;; Typing `}' was not checking for being block or not.
+;;; Beautifying levels in RE: Did not know about lookbehind;
+;;; finding *which* level was not intuitive;
+;;; `cperl-beautify-levels' added.
+;;; Allow here-docs contain `=head1' and friends (at least for keywords).
+
+;;;; After 2.7:
+;;; Fix for broken `font-lock-unfontify-region-function'. Should
+;;; preserve `syntax-table' properties even with `lazy-lock'.
+
+;;;; After 2.8:
+;;; Some more compile time warnings crept in.
+;;; `cperl-indent-region-fix-else' implemented.
+;;; `cperl-fix-line-spacing' implemented.
+;;; `cperl-invert-if-unless' implemented (C-c C-t and in Menu).
+;;; Upgraded hints to mention 20.2's goods/bads.
+;;; Started to use `cperl-extra-newline-before-brace-multiline',
+;;; `cperl-break-one-line-blocks-when-indent',
+;;; `cperl-fix-hanging-brace-when-indent', `cperl-merge-trailing-else'.
+
+;;;; After 2.9:
+;;; Workaround for another `font-lock's `syntax-table' text-property bug.
+;;; `zerop' could be applied to nil.
+;;; At last, may work with `font-lock' without setting `cperl-font-lock'.
+;;; (We expect that starting from 19.33, `font-lock' supports keywords
+;;; being a function - what is a correct version?)
+;;; Rename `cperl-indent-region-fix-else' to
+;;; `cperl-indent-region-fix-constructs'.
+;;; `cperl-fix-line-spacing' could be triggered inside strings, would not
+;;; know what to do with BLOCKs of map/printf/etc.
+;;; `cperl-merge-trailing-else' and `cperl-fix-line-spacing' handle
+;;; `continue' too.
+;;; Indentation after {BLOCK} knows about map/printf/etc.
+;;; Finally: treat after-comma lines as continuation lines.
+
+;;;; After 2.10:
+;;; `continue' made electric.
+;;; Electric `do' inserts `do/while'.
+;;; Some extra compile-time warnings crept in.
+;;; `font-lock' of 19.33 could not handle font-lock-keywords being a function
+;;; returning a symbol.
+
+;;;; After 2.11:
+;;; Changes to make syntaxification to be autoredone via `font-lock'.
+;;; Switched on by `cperl-syntaxify-by-font-lock', off by default so far.
+
+;;;; After 2.12:
+;;; Remove some commented out chunks.
+;;; Styles are slightly updated (a lot of work is needed, especially
+;;; with new `cperl-fix-line-spacing').
+
+;;;; After 2.13:
+;;; Old value of style is memorized when choosing a new style, may be
+;;; restored from the same menu.
+;;; Mode-documentation added to micro-docs.
+;;; `cperl-praise' updated.
+;;; `cperl-toggle-construct-fix' added on C-c C-w and menu.
+;;; `auto-fill-mode' added on C-c C-f and menu.
+;;; `PerlStyle' style added.
+;;; Message for termination of scan corrected.
+
+;;;; After 2.14:
+
+;;; Did not work with -q
+
+;;;; After 2.15:
+
+;;; `cperl-speed' hints added.
+;;; Minor style fixes.
+
+;;;; After 2.15:
+;;; Make backspace electric after expansion of `else/continue' too.
+
+;;;; After 2.16:
+;;; Starting to merge changes to RMS emacs version.
+
+;;;; After 2.17:
+;;; Merged custom stuff and darn `font-lock-constant-face'.
+
+;;;; After 2.18:
+;;; Bumped the version to 3.1
+
+;;;; After 3.1:
+;;; Fixed customization to honor cperl-hairy.
+;;; Created customization groups. Sent to RMS to include into 2.3.
+
+;;;; After 3.2:
+;;; Interaction of `font-lock-hot-pass' and `cperl-syntaxify-by-font-lock'.
+;;; (`cperl-after-block-and-statement-beg'):
+;;; (`cperl-after-block-p'):
+;;; (`cperl-after-expr-p'): It is BLOCK if we reach lim when backup sexp.
+;;; (`cperl-indent-region'): Make a marker for END - text added/removed.
+;;; (`cperl-style-alist', `cperl-styles-entries')
+;;; Include `cperl-merge-trailing-else' where the value is clear.
+
+;;;; After 3.3:
+;;; (`cperl-tips'):
+;;; (`cperl-problems'): Improvements to docs.
+
+;;;; After 3.4:
+;;; (`cperl-mode'): Make lazy syntaxification possible.
+;;; (`cperl-find-pods-heres'): Safe a position in buffer where it is safe to
+;;; restart syntaxification.
+;;; (`cperl-syntaxify-by-font-lock'): Set to t, should be safe now.
+
+;;;; After 3.5:
+;;; (`cperl-syntaxify-by-font-lock'): Better default, customizes to
+;;; `message' too.
+
+;;;; After 3.6:
+;;; (`cperl-find-pods-heres'): changed so that -d ?foo? is a RE.
+;;; (`cperl-array-face'): changed name from `font-lock-emphasized-face'.
+;;; (`cperl-hash-face'): changed name from `font-lock-other-emphasized-face'.
+;;; Use `defface' to define these two extra faces.
+
+;;;; After 3.7:
+;;; Can use linear algorithm for indentation if Emacs supports it:
+;;; indenting DB::DB (800+ lines) improved from 69 sec to 11 sec
+;;; (73 vs 15 with imenu).
+;;; (`cperl-emacs-can-parse'): New state.
+;;; (`cperl-indent-line'): Corrected to use global state.
+;;; (`cperl-calculate-indent'): Likewise.
+;;; (`cperl-fix-line-spacing'): Likewise (not used yet).
+
+;;;; After 3.8:
+;;; (`cperl-choose-color'): Converted to a function (to be compilable in text-mode).
+
+;;;; After 3.9:
+;;; (`cperl-dark-background '): Disable without window-system.
+
+;;;; After 3.10:
+;;; Do `defface' only if window-system.
+
+;;;; After 3.11:
+;;; (`cperl-fix-line-spacing'): sped up to bail out early.
+;;; (`cperl-indent-region'): Disable hooks during the call (how to call them later?).
+
+;;; Now indents 820-line-long function in 6.5 sec (including syntaxification) the first time
+;;; (when buffer has few properties), 7.1 sec the second time.
+
+;;;Function Name Call Count Elapsed Time Average Time
+;;;========================================= ========== ============ ============
+;;;cperl-indent-exp 1 10.039999999 10.039999999
+;;;cperl-indent-region 1 10.0 10.0
+;;;cperl-indent-line 821 6.2100000000 0.0075639464
+;;;cperl-calculate-indent 821 5.0199999999 0.0061144945
+;;;cperl-backward-to-noncomment 2856 2.0500000000 0.0007177871
+;;;cperl-fontify-syntaxically 2 1.78 0.8900000000
+;;;cperl-find-pods-heres 2 1.78 0.8900000000
+;;;cperl-update-syntaxification 1 1.78 1.78
+;;;cperl-fix-line-spacing 769 1.4800000000 0.0019245773
+;;;cperl-after-block-and-statement-beg 163 1.4100000000 0.0086503067
+;;;cperl-block-p 775 1.1800000000 0.0015225806
+;;;cperl-to-comment-or-eol 3652 1.1200000000 0.0003066812
+;;;cperl-after-block-p 165 1.0500000000 0.0063636363
+;;;cperl-commentify 141 0.22 0.0015602836
+;;;cperl-get-state 813 0.16 0.0001968019
+;;;cperl-backward-to-start-of-continued-exp 26 0.12 0.0046153846
+;;;cperl-delay-update-hook 2107 0.0899999999 4.271...e-05
+;;;cperl-protect-defun-start 141 0.0700000000 0.0004964539
+;;;cperl-after-label 407 0.0599999999 0.0001474201
+;;;cperl-forward-re 139 0.0299999999 0.0002158273
+;;;cperl-comment-indent 26 0.0299999999 0.0011538461
+;;;cperl-use-region-p 8 0.0 0.0
+;;;cperl-lazy-hook 15 0.0 0.0
+;;;cperl-after-expr-p 8 0.0 0.0
+;;;cperl-font-lock-unfontify-region-function 1 0.0 0.0
+
+;;;Function Name Call Count Elapsed Time Average Time
+;;;========================================= ========== ============ ============
+;;;cperl-fix-line-spacing 769 1.4500000000 0.0018855656
+;;;cperl-indent-line 13 0.3100000000 0.0238461538
+;;;cperl-after-block-and-statement-beg 69 0.2700000000 0.0039130434
+;;;cperl-after-block-p 69 0.2099999999 0.0030434782
+;;;cperl-calculate-indent 13 0.1000000000 0.0076923076
+;;;cperl-backward-to-noncomment 177 0.0700000000 0.0003954802
+;;;cperl-get-state 13 0.0 0.0
+;;;cperl-to-comment-or-eol 179 0.0 0.0
+;;;cperl-get-help-defer 1 0.0 0.0
+;;;cperl-lazy-hook 11 0.0 0.0
+;;;cperl-after-expr-p 2 0.0 0.0
+;;;cperl-block-p 13 0.0 0.0
+;;;cperl-after-label 5 0.0 0.0
+
+;;;; After 3.12:
+;;; (`cperl-find-pods-heres'): do not warn on `=cut' if doing a chunk only.
+
+;;;; After 3.13:
+;;; (`cperl-mode'): load pseudo-faces on `cperl-find-pods-heres' (for 19.30).
+;;; (`x-color-defined-p'): was not compiling on XEmacs
+;;; (`cperl-find-pods-heres'): 1 << 6 was OK, but 1<<6 was considered as HERE
+;;; <file/glob> made into a string.
+
+;;;; After 3.14:
+;;; (`cperl-find-pods-heres'): Postpone addition of faces after syntactic step
+;;; Recognition of <FH> was wrong.
+;;; (`cperl-clobber-lisp-bindings'): if set, C-c variants are the old ones
+;;; (`cperl-unwind-to-safe'): New function.
+;;; (`cperl-fontify-syntaxically'): Use `cperl-unwind-to-safe' to start at reasonable position.
+
+;;;; After 3.15:
+;;; (`cperl-forward-re'): Highlight the trailing / in s/foo// as string.
+;;; Highlight the starting // in s//foo/ as function-name.
+
+;;;; After 3.16:
+;;; (`cperl-find-pods-heres'): Highlight `gem' in s///gem as a keyword.
+
+;;;; After 4.0:
+;;; (`cperl-find-pods-heres'): `qr' added
+;;; (`cperl-electric-keyword'): Likewise
+;;; (`cperl-electric-else'): Likewise
+;;; (`cperl-to-comment-or-eol'): Likewise
+;;; (`cperl-make-regexp-x'): Likewise
+;;; (`cperl-init-faces'): Likewise, and `lock' (as overridable?).
+;;; (`cperl-find-pods-heres'): Knows that split// is null-RE.
+;;; Highlights separators in 3-parts expressions
+;;; as labels.
+
+;;;; After 4.1:
+;;; (`cperl-find-pods-heres'): <> was considered as a glob
+;;; (`cperl-syntaxify-unwind'): New configuration variable
+;;; (`cperl-fontify-m-as-s'): New configuration variable
+
+;;;; After 4.2:
+;;; (`cperl-find-pods-heres'): of the last line being `=head1' fixed.
+
+;;; Handling of a long construct is still buggy if only the part of
+;;; construct touches the updated region (we unwind to the start of
+;;; long construct, but the end may have residual properties).
+
+;;; (`cperl-unwind-to-safe'): would not go to beginning of buffer.
+;;; (`cperl-electric-pod'): check for after-expr was performed
+;;; inside of POD too.
+
+;;;; After 4.3:
+;;; (`cperl-backward-to-noncomment'): better treatment of PODs and HEREs.
+
+;;; Indent-line works good, but indent-region does not - at toplevel...
+;;; (`cperl-unwind-to-safe'): Signature changed.
+;;; (`x-color-defined-p'): was defmacro'ed with a tick. Remove another def.
+;;; (`cperl-clobber-mode-lists'): New configuration variable.
+;;; (`cperl-array-face'): One of definitions was garbled.
+
+;;;; After 4.4:
+;;; (`cperl-not-bad-style-regexp'): Updated.
+;;; (`cperl-make-regexp-x'): Misprint in a message.
+;;; (`cperl-find-pods-heres'): $a-1 ? foo : bar; was a regexp.
+;;; `<< (' was considered a start of POD.
+;;; Init: `cperl-is-face' was busted.
+;;; (`cperl-make-face'): New macros.
+;;; (`cperl-force-face'): New macros.
+;;; (`cperl-init-faces'): Corrected to use new macros;
+;;; `if' for copying `reference-face' to
+;;; `constant-face' was backward.
+;;; (`font-lock-other-type-face'): Done via `defface' too.
+
+;;;; After 4.5:
+;;; (`cperl-init-faces-weak'): use `cperl-force-face'.
+;;; (`cperl-after-block-p'): After END/BEGIN we are a block.
+;;; (`cperl-mode'): `font-lock-unfontify-region-function'
+;;; was set to a wrong function.
+;;; (`cperl-comment-indent'): Commenting __END__ was not working.
+;;; (`cperl-indent-for-comment'): Likewise.
+;;; (Indenting is still misbehaving at toplevel.)
+
+;;;; After 4.5:
+;;; (`cperl-unwind-to-safe'): Signature changed, unwinds end too.
+;;; (`cperl-find-pods-heres'): mark qq[]-etc sections as syntax-type=string
+;;; (`cperl-fontify-syntaxically'): Unwinds start and end to go out of
+;;; long strings (not very successful).
+
+;;; >>>> CPerl should be usable in write mode too now <<<<
+
+;;; (`cperl-syntaxify-by-font-lock'): Better default - off in text-mode.
+;;; (`cperl-tips'): Updated docs.
+;;; (`cperl-problems'): Updated docs.
+
+;;;; After 4.6:
+;;; (`cperl-calculate-indent'): Did not consider `,' as continuation mark for statements.
+;;; (`cperl-write-tags'): Correct for XEmacs's `visit-tags-table-buffer'.
+
+;;;; After 4.7:
+;;; (`cperl-calculate-indent'): Avoid parse-data optimization at toplevel.
+;;; Should indent correctly at toplevel too.
+;;; (`cperl-tags-hier-init'): Gross hack to pretend we work (are we?).
+;;; (`cperl-find-pods-heres'): Was not processing sub protos after a comment ine.
+;;; Was treating $a++ <= 5 as a glob.
+
+;;;; After 4.8:
+;;; (toplevel): require custom unprotected => failure on 19.28.
+;;; (`cperl-xemacs-p') defined when compile too
+;;; (`cperl-tags-hier-init'): Another try to work around XEmacs problems
+;;; Better progress messages.
+;;; (`cperl-find-tags'): Was writing line/pos in a wrong order,
+;;; pos off by 1 and not at beg-of-line.
+;;; (`cperl-etags-snarf-tag'): New macro
+;;; (`cperl-etags-goto-tag-location'): New macro
+;;; (`cperl-write-tags'): When removing old TAGS info was not
+;;; relativizing filename
+
+;;;; After 4.9:
+;;; (`cperl-version'): New variable. New menu entry
+
+;;;; After 4.10:
+;;; (`cperl-tips'): Updated.
+;;; (`cperl-non-problems'): Updated.
+;;; random: References to future 20.3 removed.
+
+;;;; After 4.11:
+;;; (`perl-font-lock-keywords'): Would not highlight `sub foo($$);'.
+;;; Docstrings: Menu was described as `CPerl' instead of `Perl'
+
+;;;; After 4.12:
+;;; (`cperl-toggle-construct-fix'): Was toggling to t instead of 1.
+;;; (`cperl-ps-print-init'): Associate `cperl-array-face', `cperl-hash-face'
+;;; remove `font-lock-emphasized-face'.
+;;; remove `font-lock-other-emphasized-face'.
+;;; remove `font-lock-reference-face'.
+;;; remove `font-lock-keyword-face'.
+;;; Use `eval-after-load'.
+;;; (`cperl-init-faces'): remove init `font-lock-other-emphasized-face'.
+;;; remove init `font-lock-emphasized-face'.
+;;; remove init `font-lock-keyword-face'.
+;;; (`cperl-tips-faces'): New variable and an entry into Mini-docs.
+;;; (`cperl-indent-region'): Do not indent whitespace lines
+;;; (`cperl-indent-exp'): Was not processing else-blocks.
+;;; (`cperl-calculate-indent'): Remove another parse-data optimization
+;;; at toplevel: would indent correctly.
+;;; (`cperl-get-state'): NOP line removed.
+
+;;;; After 4.13:
+;;; (`cperl-ps-print-init'): Remove not-CPerl-related faces.
+;;; (`cperl-ps-print'): New function and menu entry.
+;;; (`cperl-ps-print-face-properties'): New configuration variable.
+;;; (`cperl-invalid-face'): New configuration variable.
+;;; (`cperl-nonoverridable-face'): New face. Renamed from
+;;; `font-lock-other-type-face'.
+;;; (`perl-font-lock-keywords'): Highlight trailing whitespace
+;;; (`cperl-contract-levels'): Documentation corrected.
+;;; (`cperl-contract-level'): Likewise.
+
+;;;; After 4.14:
+;;; (`cperl-ps-print'): `ps-print-face-extension-alist' was not in old Emaxen,
+;;; same with `ps-extend-face-list'
+;;; (`cperl-ps-extend-face-list'): New macro.
+
+;;;; After 4.15:
+;;; (`cperl-init-faces'): Interpolate `cperl-invalid-face'.
+;;; (`cperl-forward-re'): Emit a meaningful error instead of a cryptic
+;;; one for uncomplete REx near end-of-buffer.
+;;; (`cperl-find-pods-heres'): Tolerate unfinished REx at end-of-buffer.
+
+;;;; After 4.16:
+;;; (`cperl-find-pods-heres'): `unwind-protect' was left commented.
+
+;;;; After 4.17:
+;;; (`cperl-invalid-face'): Change to ''underline.
+
+;;;; After 4.18:
+;;; (`cperl-find-pods-heres'): / and ? after : start a REx.
+;;; (`cperl-after-expr-p'): Skip labels when checking
+;;; (`cperl-calculate-indent'): Correct for labels when calculating
+;;; indentation of continuations.
+;;; Docstring updated.
+
+;;;; After 4.19:
+;;; Minor (mostly spelling) corrections from 20.3.3 merged.
+
+;;;; After 4.20:
+;;; (`cperl-tips'): Another workaround added. Sent to RMS for 20.4.
+
+;;;; After 4.21:
+;;; (`cperl-praise'): Mention linear-time indent.
+;;; (`cperl-find-pods-heres'): @if ? a : b was considered a REx.
+
+;;;; After 4.22:
+;;; (`cperl-after-expr-p'): Make true after __END__.
+;;; (`cperl-electric-pod'): "SYNOPSIS" was misspelled.
+
+;;;; After 4.23:
+;;; (`cperl-beautify-regexp-piece'): Was not allowing for *? after a class.
+;;; Allow for POSIX char-classes.
+;;; Remove trailing whitespace when
+;;; adding new linebreak.
+;;; Add a level counter to stop shallow.
+;;; Indents unprocessed groups rigidly.
+;;; (`cperl-beautify-regexp'): Add an optional count argument to go that
+;;; many levels deep.
+;;; (`cperl-beautify-level'): Likewise
+;;; Menu: Add new entries to Regexp menu to do one level
+;;; (`cperl-contract-level'): Was entering an infinite loop
+;;; (`cperl-find-pods-heres'): Typo (double quoting).
+;;; Was detecting < $file > as FH instead of glob.
+;;; Support for comments in RExen (except
+;;; for m#\#comment#x), governed by
+;;; `cperl-regexp-scan'.
+;;; (`cperl-regexp-scan'): New customization variable.
+;;; (`cperl-forward-re'): Improve logic of resetting syntax table.
+
+;;;; After 4.23 and: After 4.24:
+;;; (`cperl-contract-levels'): Restore position.
+;;; (`cperl-beautify-level'): Likewise.
+;;; (`cperl-beautify-regexp'): Likewise.
+;;; (`cperl-commentify'): Rudimental support for length=1 runs
+;;; (`cperl-find-pods-heres'): Process 1-char long REx comments too /a#/x
+;;; Processes REx-comments in #-delimited RExen.
+;;; MAJOR BUG CORRECTED: after a misparse
+;;; a body of a subroutine could be corrupted!!!
+;;; One might need to reeval the function body
+;;; to fix things. (A similar bug was
+;;; present in `cperl-indent-region' eons ago.)
+;;; To reproduce:
+;; (defun foo () (let ((a '(t))) (insert (format "%s" a)) (setcar a 'BUG) t))
+;; (foo)
+;; (foo)
+;;; C-x C-e the above three lines (at end-of-line). First evaluation
+;;; of `foo' inserts (t), second one inserts (BUG) ?!
+;;;
+;;; In CPerl it was triggered by inserting then deleting `/' at start of
+;;; / a (?# asdf {[(}asdf )ef,/;
+
+;;;; After 4.25:
+;;; (`cperl-commentify'): Was recognizing length=2 "strings" as length=1.
+;;; (`imenu-example--create-perl-index'):
+;;; Was not enforcing syntaxification-to-the-end.
+;;; (`cperl-invert-if-unless'): Allow `for', `foreach'.
+;;; (`cperl-find-pods-heres'): Quote `cperl-nonoverridable-face'.
+;;; Mark qw(), m()x as indentable.
+;;; (`cperl-init-faces'): Highlight `sysopen' too.
+;;; Highlight $var in `for my $var' too.
+;;; (`cperl-invert-if-unless'): Was leaving whitespace at end.
+;;; (`cperl-linefeed'): Was splitting $var{$foo} if point after `{'.
+;;; (`cperl-calculate-indent'): Remove old commented out code.
+;;; Support (primitive) indentation of qw(), m()x.
+
+
+;;;; After 4.26:
+;;; (`cperl-problems'): Mention `fill-paragraph' on comment. \"" and
+;;; q [] with intervening newlines.
+;;; (`cperl-autoindent-on-semi'): New customization variable.
+;;; (`cperl-electric-semi'): Use `cperl-autoindent-on-semi'.
+;;; (`cperl-tips'): Mention how to make CPerl the default mode.
+;;; (`cperl-mode'): Support `outline-minor-mode'
+;;; (Thanks to Mark A. Hershberger).
+;;; (`cperl-outline-level'): New function.
+;;; (`cperl-highlight-variables-indiscriminately'): New customization var.
+;;; (`cperl-init-faces'): Use `cperl-highlight-variables-indiscriminately'.
+;;; (Thanks to Sean Kamath <kamath@pogo.wv.tek.com>).
+;;; (`cperl-after-block-p'): Support CHECK and INIT.
+;;; (`cperl-init-faces'): Likewise and "our".
+;;; (Thanks to Doug MacEachern <dougm@covalent.net>).
+;;; (`cperl-short-docs'): Likewise and "our".
+
+
+;;;; After 4.27:
+;;; (`cperl-find-pods-heres'): Recognize \"" as a string.
+;;; Mark whitespace and comments between q and []
+;;; as `syntax-type' => `prestring'.
+;;; Allow whitespace between << and "FOO".
+;;; (`cperl-problems'): Remove \"" and q [] with intervening newlines.
+;;; Mention multiple <<EOF as unsupported.
+;;; (`cperl-highlight-variables-indiscriminately'): Doc misprint fixed.
+;;; (`cperl-indent-parens-as-block'): New configuration variable.
+;;; (`cperl-calculate-indent'): Merge cases of indenting non-BLOCK groups.
+;;; Use `cperl-indent-parens-as-block'.
+;;; (`cperl-find-pods-heres'): Test for =cut without empty line instead of
+;;; complaining about no =cut.
+;;; (`cperl-electric-pod'): Change the REx for POD from "\n\n=" to "^\n=".
+;;; (`cperl-find-pods-heres'): Likewise.
+;;; (`cperl-electric-pod'): Change `forward-sexp' to `forward-word':
+;;; POD could've been marked as comment already.
+;;; (`cperl-unwind-to-safe'): Unwind before start of POD too.
+
+;;;; After 4.28:
+;;; (`cperl-forward-re'): Throw an error at proper moment REx unfinished.
+
+;;;; After 4.29:
+;;; (`x-color-defined-p'): Make an extra case to peacify the warning.
+;;; Toplevel: `defvar' to peacify the warnings.
+;;; (`cperl-find-pods-heres'): Could access `font-lock-comment-face' in -nw.
+;;;; No -nw-compile time warnings now.
+;;; (`cperl-find-tags'): TAGS file had too short substring-to-search.
+;;; Be less verbose in non-interactive mode
+;;; (`imenu-example--create-perl-index'): Set index-marker after name
+;;; (`cperl-outline-regexp'): New variable.
+;;; (`cperl-outline-level'): Made compatible with `cperl-outline-regexp'.
+;;; (`cperl-mode'): Made use `cperl-outline-regexp'.
+
+;;;; After 4.30:
+;;; (`cperl-find-pods-heres'): =cut the last thing, no blank line, was error.
+;;; (`cperl-outline-level'): Make start-of-file same level as `package'.
+
+;;;; After 4.31:
+;;; (`cperl-electric-pod'): `head1' and `over' electric only if empty.
+;;; (`cperl-unreadable-ok'): New variable.
+;;; (`cperl-find-tags'): Use `cperl-unreadable-ok', do not fail
+;;; on an unreadable file
+;;; (`cperl-write-tags'): Use `cperl-unreadable-ok', do not fail
+;;; on an unreadable directory
+
+;;;; After 4.32:
+;;; Syncronized with v1.60 from Emacs 21.3.
+;;; Mostly docstring and formatting changes, and:
+
+;;; (`cperl-noscan-files-regexp'): Do not scan CVS subdirs
+;;; (`cperl-problems'): Note that newer XEmacsen may syntaxify too
+;;; (`imenu-example--create-perl-index'):
+;;; Renamed to `cperl-imenu--create-perl-index'
+;;; (`cperl-mode'): Replace `make-variable-buffer-local' by `make-local-variable'
+;;; (`cperl-setup-tmp-buf'): Likewise
+;;; (`cperl-fix-line-spacing'): Fix a misprint of "t" for "\t"
+;;; (`cperl-next-bad-style'): Fix misprints in character literals
+
+;;;; After 4.33:
+;;; (`cperl-font-lock-keywords'): +etc: Aliased to perl-font-lock-keywords.
+
+;;;; After 4.34:
+;;; Further updates of whitespace and spelling w.r.t. RMS version.
+;;; (`cperl-font-lock-keywords'): +etc: Avoid warnings when aliasing.
+;;; (`cperl-mode'): Use `normal-auto-fill-function' if present.
+;;; (`cperl-use-major-mode'): New variable
+;;; (`cperl-can-font-lock'): New variable; replaces `window-system'
+;;; (`cperl-tags-hier-init'): use `display-popup-menus-p' (if present)
+;;; to choose `x-popup-menu' vs `tmm-prompt'
+
+;;;; 4.35 has the following differences from version 1.40+ of RMS Emacs:
+
+;;; New variables `cperl-use-major-mode', `cperl-can-font-lock';
+;;; `cperl-use-major-mode' is (effectively) 'cperl-mode in RMS.
+;;; `cperl-under-as-char' is nil in RMS.
+;;; Minor differences in docstrings, and `cperl-non-problems'.
+;;; Backward compatibility addressed: (`); (function (lambda ...)); font-lock;
+;;; (:italic t bold t) vs (:slant italic :weight bold) in faces;
+;;; `normal-auto-fill-function'.
+;;; RMS version has wrong logic in `cperl-calculate-indent': $a = { } is
+;;; wrongly indented if the closing brace is on a separate line.
+;;; Different choice of ordering if's for is-x-REx and (eq (char-after b) ?\#)
+;;; in `cperl-find-pods-heres'. [Cosmetic]
+
+;;;; After 4.35:
+;;; (`cperl-find-pods-heres'): If no end of HERE-doc found, mark to the end
+;;; of buffer. This enables recognition of end
+;;; of HERE-doc "as one types".
+;;; Require "\n" after trailing tag of HERE-doc.
+;;; \( made non-quoting outside of string/comment
+;;; (gdj-contributed).
+;;; Likewise for \$.
+;;; Remove `here-doc-group' text property at start
+;;; (makes this property reliable).
+;;; Text property `first-format-line' ==> t.
+;;; Do not recognize $opt_s and $opt::s as s///.
+;;; (`cperl-perldoc'): Use case-sensitive search (contributed).
+;;; (`cperl-fix-line-spacing'): Allow "_" in $vars of foreach etc. when
+;;; underscore isn't a word char (gdj-contributed).
+;;; (`defun-prompt-regexp'): Allow prototypes.
+;;; (`cperl-vc-header-alist'): Extract numeric version from the Id.
+;;; Toplevel: Put toggle-autohelp into the mode menu.
+;;; Better docs for toggle/set/unset autohelp.
+;;; (`cperl-electric-backspace-untabify'): New customization variable
+;;; (`cperl-after-expr-p'): Works after here-docs, formats, and PODs too
+;;; (affects many electric constructs).
+;;; (`cperl-calculate-indent'): Takes into account `first-format-line' ==>
+;;; works after format.
+;;; (`cperl-short-docs'): Make it work with ... too.
+;;; "array context" ==> "list context"
+;;; (`cperl-electric-keyword'): make $if (etc: "$@%&*") non-electric
+;;; '(' after keyword would insert a doubled paren
+;;; (`cperl-electric-paren'): documented affected by `cperl-electric-parens'
+;;; (`cperl-electric-rparen'): Likewise
+;;; (`cperl-build-manpage'): New function by Nick Roberts
+;;; (`cperl-perldoc'): Make it work in XEmacs too
+
+;;;; After 4.36:
+;;; (`cperl-find-pods-heres'): Recognize s => 1 and {s} (as a key or varname),
+;;; { s:: } and { s::bar::baz } as varnames.
+;;; (`cperl-after-expr-p'): Updates syntaxification before checks
+;;; (`cperl-calculate-indent'): Likewise
+;;; Fix wrong indent of blocks starting with POD
+;;; (`cperl-after-block-p'): Optional argument for checking for a pre-block
+;;; Recognize `continue' blocks too.
+;;; (`cperl-electric-brace'): use `cperl-after-block-p' for detection;
+;;; Now works for else/continue/sub blocks
+;;; (`cperl-short-docs'): Minor edits; make messages fit 80-column screen
+
+;;;; After 5.0:
+;;; `cperl-add-tags-recurse-noxs-fullpath': new function (for -batch mode)
+
+;;;; After 5.1:
+;;;;;; Major edit. Summary of most visible changes:
+
+;;;;;; a) Multiple <<HERE per line allowed.
+;;;;;; b) Handles multiline subroutine declaration headers (with comments).
+;;;;;; (The exception is `cperl-etags' - but it is not used in the rest
+;;;;;; of the mode.)
+;;;;;; c) Fontifies multiline my/our declarations (even with comments,
+;;;;;; and with legacy `font-lock').
+;;;;;; d) Major speedup of syntaxification, both immediate and postponed
+;;;;;; (3.5x to 15x [for different CPUs and versions of Emacs] on the
+;;;;;; huge real-life document I tested).
+;;;;;; e) New bindings, edits to imenu.
+;;;;;; f) "_" is made into word-char during fontification/syntaxification;
+;;;;;; some attempts to recognize non-word "_" during other operations too.
+;;;;;; g) Detect bug in Emacs with `looking-at' inside `narrow' and bulk out.
+;;;;;; h) autoload some more perldoc-related stuff
+;;;;;; i) Some new convenience features: ISpell POD/HEREDOCs, narrow-to-HEREDOC
+;;;;;; j) Attempt to incorporate XEmacs edits which reached me
+
+;;;; Fine-grained changelog:
+;;; `cperl-hook-after-change': New configuration variable
+;;; `cperl-vc-sccs-header': Likewise
+;;; `cperl-vc-sccs-header': Likewise
+;;; `cperl-vc-header-alist': Default via two preceding variables
+;;; `cperl-invalid-face': Remove double quoting under XEmacs
+;;; (still needed under 21.2)
+;;; `cperl-tips': Update URLs for resources
+;;; `cperl-problems': Likewise
+;;; `cperl-praise': Mention new features
+;;; New C-c key bindings: for `cperl-find-bad-style',
+;;; `cperl-pod-spell', `cperl-here-doc-spell', `cperl-narrow-to-here-doc',
+;;; `cperl-perdoc', `cperl-perldoc-at-point'
+;;; CPerl Mode menu changes: "Fix style by spaces", "Imenu on Perl Info"
+;;; moved, new submenu of Tools with Ispell entries and narrowing.
+;;; `cperl-after-sub-regexp': New defsubst
+;;; `cperl-imenu--function-name-regexp-perl': Use `cperl-after-sub-regexp',
+;;; Allows heads up to head4
+;;; Allow "package;"
+;;; `defun-prompt-regexp': Use `cperl-after-sub-regexp',
+;;; `paren-backwards-message': ??? Something for XEmacs???
+;;; `cperl-mode': Never auto-switch abbrev-mode off
+;;; Try to allow '_' be non-word char
+;;; Do not use `font-lock-unfontify-region-function' on XEmacs
+;;; Reset syntax cache on mode start
+;;; Support multiline facification (even
+;;; on legacy `font-lock')
+;;; `cperl-facemenu-add-face-function': ??? Some contributed code ???
+;;; `cperl-after-change-function': Since `font-lock' and `lazy-lock'
+;;; refuse to inform us whether the fontification is due to lazy
+;;; calling or due to edit to a buffer, install our own hook
+;;; (controlled by `cperl-hook-after-change')
+;;; `cperl-electric-pod': =cut may have been recognized as start
+;;; `cperl-block-p': Moved, updated for attributes
+;;; `cperl-calculate-indent': Try to allow '_' be non-word char
+;;; Support subs with attributes
+;;; `cperl-where-am-i': Queit (?) a warning
+;;; `cperl-cached-syntax-table' New function
+;;; `cperl-forward-re': Use `cperl-cached-syntax-table'
+;;; `cperl-unwind-to-safe': Recognize `syntax-type' property
+;;; changing in a middle of line
+;;; `cperl-find-sub-attrs': New function
+;;; `cperl-find-pods-heres': Allow many <<EOP per line
+;;; Allow subs with attributes
+;;; Major speedups (3.5x..15x on a real-life
+;;; test file nph-proxy.pl)
+;;; Recognize "extproc " (OS/2)
+;;; case-folded and only at start
+;;; /x on s///x with empty replacement was
+;;; not recognized
+;;; Better comments
+;;; `cperl-after-block-p': Remarks on diff with `cperl-block-p'
+;;; Allow subs with attributes, labels
+;;; Do not confuse "else::foo" with "else"
+;;; Minor optimizations...
+;;; `cperl-after-expr-p': Try to allow '_' be non-word char
+;;; `cperl-fill-paragraph': Try to detect a major bug in Emacs
+;;; with `looking-at' inside `narrow' and bulk out if found
+;;; `cperl-imenu--create-perl-index': Updates for new
+;;; `cperl-imenu--function-name-regexp-perl'
+;;; `cperl-outline-level': Likewise
+;;; `cperl-init-faces': Allow multiline subroutine headers
+;;; and my/our declarations, and ones with comments
+;;; Allow subroutine attributes
+;;; `cperl-imenu-on-info': Better docstring.
+;;; `cperl-etags' Rudimentary support for attributes
+;;; Support for packages and "package;"
+;;; `cperl-add-tags-recurse-noxs': Better (?) docstring
+;;; `cperl-add-tags-recurse-noxs-fullpath': Likewise
+;;; `cperl-tags-hier-init': Misprint for `fboundp' fixed
+;;; `cperl-not-bad-style-regexp': Try to allow '_' be non-word char
+;;; `cperl-perldoc': Add autoload
+;;; `cperl-perldoc-at-point': Likewise
+;;; `cperl-here-doc-spell': New function
+;;; `cperl-pod-spell': Likewise
+;;; `cperl-map-pods-heres': Likewise
+;;; `cperl-get-here-doc-region': Likewise
+;;; `cperl-font-lock-fontify-region-function': Likewise (backward compatibility
+;;; for legacy `font-lock')
+;;; `cperl-font-lock-unfontify-region-function': Fix style
+;;; `cperl-fontify-syntaxically': Recognize and optimize away
+;;; deferred calls with no-change. Governed by `cperl-hook-after-change'
+;;; `cperl-fontify-update': Recognize that syntaxification region
+;;; can be larger than fontification one.
+;;; XXXX we leave `cperl-postpone' property, so this is quadratic...
+;;; `cperl-fontify-update-bad': Temporary placeholder until
+;;; it is clear how to implement `cperl-fontify-update'.
+;;; `cperl-time-fontification': New function
+;;; `attrib-group': New text attribute
+;;; `multiline': New value: `syntax-type' text attribute
+
+;;;; After 5.2:
+;;; `cperl-emulate-lazy-lock': New function
+;;; `cperl-fontify-syntaxically': Would skip large regions
+;;; Add `cperl-time-fontification', `cperl-emulate-lazy-lock' to menu
+;;; Some globals were declared, but uninitialized
+
+;;;; After 5.3, 5.4:
+;;; `cperl-facemenu-add-face-function': Add docs, fix U<>
+;;; Copyright message updated.
+;;; `cperl-init-faces': Work around a bug in `font-lock'. May slow
+;;; facification down a bit.
+;;; Misprint for my|our|local for old `font-lock'
+;;; "our" was not fontified same as "my|local"
+;;; Highlight variables after "my" etc even in
+;;; a middle of an expression
+;;; Do not facify multiple variables after my etc
+;;; unless parentheses are present
+
+;;; After 5.5, 5.6
+;;; `cperl-fontify-syntaxically': after-change hook could reset
+;;; `cperl-syntax-done-to' to a middle of line; unwind to BOL.
+
+;;; After 5.7:
+;;; `cperl-init-faces': Allow highlighting of local ($/)
+;;; `cperl-problems-old-emaxen': New variable (for the purpose of DOCSTRING).
+;;; `cperl-problems': Remove fixed problems.
+;;; `cperl-find-pods-heres': Recognize #-comments in m##x too
+;;; Recognize charclasses (unless delimiter is \).
+;;; `cperl-fontify-syntaxically': Unwinding to safe was done in wrong order
+;;; `cperl-regexp-scan': Update docs
+;;; `cperl-beautify-regexp-piece': use information got from regexp scan
+
+;;; After 5.8:
+;;; Major user visible changes:
+;;; Recognition and fontification of character classes in RExen.
+;;; Variable indentation of RExen according to groups
+;;;
+;;; `cperl-find-pods-heres': Recognize POSIX classes in REx charclasses
+;;; Fontify REx charclasses in variable-name face
+;;; Fontify POSIX charclasses in "type" face
+;;; Fontify unmatched "]" in function-name face
+;;; Mark first-char of HERE-doc as `front-sticky'
+;;; Reset `front-sticky' property when needed
+;;; `cperl-calculate-indent': Indents //x -RExen accordning to parens level
+;;; `cperl-to-comment-or-eol': Recognize ends of `syntax-type' constructs
+;;; `cperl-backward-to-noncomment': Recognize stringy `syntax-type' constructs
+;;; Support `narrow'ed buffers.
+;;; `cperl-praise': Remove a reservation
+;;; `cperl-make-indent': New function
+;;; `cperl-indent-for-comment': Use `cperl-make-indent'
+;;; `cperl-indent-line': Likewise
+;;; `cperl-lineup': Likewise
+;;; `cperl-beautify-regexp-piece': Likewise
+;;; `cperl-contract-level': Likewise
+;;; `cperl-toggle-set-debug-unwind': New function
+;;; New menu entry for this
+;;; `fill-paragraph-function': Use when `boundp'
+;;; `cperl-calculate-indent': Take into account groups when indenting RExen
+;;; `cperl-to-comment-or-eol': Recognize # which end a string
+;;; `cperl-modify-syntax-type': Make only syntax-table property non-sticky
+;;; `cperl-fill-paragraph': Return t: needed for `fill-paragraph-function'
+;;; `cperl-fontify-syntaxically': More clear debugging message
+;;; `cperl-pod2man-build-command': XEmacs portability: check `Man-filter-list'
+;;; `cperl-init-faces': More complicated highlight even on XEmacs (new)
+;;; Merge cosmetic changes from XEmacs
+
+;;; After 5.9:
+;;; `cperl-1+': Moved to before the first use
+;;; `cperl-1-': Likewise
+
+;;; After 5.10:
+
+;;; This code may lock Emacs hard!!! Use on your own risk!
+
+;;; `cperl-font-locking': New internal variable
+;;; `cperl-beginning-of-property': New function
+;;; `cperl-calculate-indent': Use `cperl-beginning-of-property'
+;;; instead of `previous-single-property-change'
+;;; `cperl-unwind-to-safe': Likewise
+;;; `cperl-after-expr-p': Likewise
+;;; `cperl-get-here-doc-region': Likewise
+;;; `cperl-font-lock-fontify-region-function': Likewise
+;;; `cperl-to-comment-or-eol': Do not call `cperl-update-syntaxification'
+;;; recursively
+;;; Bound `next-single-property-change'
+;;; via `point-max'
+;;; `cperl-unwind-to-safe': Bound likewise
+;;; `cperl-font-lock-fontify-region-function': Likewise
+;;; `cperl-find-pods-heres': Mark as recursive for `cperl-to-comment-or-eol'
+;;; Initialization of
+;;; `cperl-font-lock-multiline-start' could be missed if the "main"
+;;; fontification did not run due to the keyword being already fontified.
+;;; `cperl-pod-spell': Return t from do-one-chunk function
+;;; `cperl-map-pods-heres': Stop when the worker returns nil
+;;; Call `cperl-update-syntaxification'
+;;; `cperl-get-here-doc-region': Call `cperl-update-syntaxification'
+;;; `cperl-get-here-doc-delim': Remove unused function
+
+;;; After 5.11:
+
+;;; The possible lockup of Emacs (introduced in 5.10) fixed
+
+;;; `cperl-unwind-to-safe': `cperl-beginning-of-property' won't return nil
+;;; `cperl-syntaxify-for-menu': New customization variable
+;;; `cperl-select-this-pod-or-here-doc': New function
+;;; `cperl-get-here-doc-region': Extra argument
+;;; Do not adjust pos by 1
+
+;;; New menu entries (Perl/Tools): selection of current POD or HERE-DOC section
+;;; (Debugging CPerl:) backtrace on fontification
+
+;;; After 5.12:
+;;; `cperl-cached-syntax-table': use `car-safe'
+;;; `cperl-forward-re': Remove spurious argument SET-ST
+;;; Add documentation
+;;; `cperl-forward-group-in-re': New function
+;;; `cperl-find-pods-heres': Find and highlight (?{}) blocks in RExen
+;;; (XXXX Temporary (?) hack is to syntax-mark them as comment)
+
+;;; After 5.13:
+;;; `cperl-string-syntax-table': Make { and } not-grouping
+;;; (Sometimes they ARE grouping in RExen, but matching them would only
+;;; confuse in many situations when they are not)
+;;; `beginning-of-buffer': Replaced two occurences with goto-char...
+;;; `cperl-calculate-indent': `char-after' could be nil...
+;;; `cperl-find-pods-heres': REx can start after "[" too
+;;; Hightlight (??{}) in RExen too
+;;; `cperl-maybe-white-and-comment-rex': New constant
+;;; `cperl-white-and-comment-rex': Likewise
+;;; XXXX Not very efficient, but hard to make
+;;; better while keeping 1 group
+
+;;; After 5.13:
+;;; `cperl-find-pods-heres': $foo << identifier() is not a HERE-DOC
+;;; Likewise for 1 << identifier
+
+;;; After 5.14:
+;;; `cperl-find-pods-heres': Different logic for $foo .= <<EOF etc
+;;; Error-less condition-case could fail
+;;; `cperl-font-lock-fontify-region-function': Likewise
+;;; `cperl-init-faces': Likewise
+
+;;; After 5.15:
+;;; `cperl-find-pods-heres': Support property REx-part2
+;;; `cperl-calculate-indent': Likewise
+;;; Don't special-case REx with non-empty 1st line
+;;; `cperl-find-pods-heres': In RExen, highlight non-literal backslashes
+;;; Invert highlighting of charclasses:
+;;; now the envelop is highlighted
+;;; Highlight many others 0-length builtins
+;;; `cperl-praise': Mention indenting and highlight in RExen
+
+;;; After 5.15:
+;;; `cperl-find-pods-heres': Highlight capturing parens in REx
+
+;;; After 5.16:
+;;; `cperl-find-pods-heres': Highlight '|' for alternation
+;;; Initialize `font-lock-warning-face' if not present
+;;; `cperl-find-pods-heres': Use `font-lock-warning-face' instead of
+;;; `font-lock-function-name-face'
+;;; `cperl-look-at-leading-count': Likewise
+;;; `cperl-find-pods-heres': localize `font-lock-variable-name-face'
+;;; `font-lock-keyword-face' (needed for
+;;; batch processing) etc
+;;; Use `font-lock-builtin-face' for builtin in REx
+;;; Now `font-lock-variable-name-face'
+;;; is used for interpolated variables
+;;; Use "talking aliases" for faces inside REx
+;;; Highlight parts of REx (except in charclasses)
+;;; according to the syntax and/or semantic
+;;; Syntax-mark a {}-part of (?{}) as "comment"
+;;; (it was the ()-part)
+;;; Better logic to distinguish what is what in REx
+;;; `cperl-tips-faces': Document REx highlighting
+;;; `cperl-praise': Mention REx syntax highlight etc.
+
+;;; After 5.17:
+;;; `cperl-find-sub-attrs': Would not always manage to print error message
+;;; `cperl-find-pods-heres': localize `font-lock-constant-face'
+
+;;; After 5.18:
+;;; `cperl-find-pods-heres': Misprint in REx for parsing REx
+;;; Very minor optimization
+;;; `my-cperl-REx-modifiers-face' got quoted
+;;; Recognize "print $foo <<END" as HERE-doc
+;;; Put `REx-interpolated' text attribute if needed
+;;; `cperl-invert-if-unless-modifiers': New function
+;;; `cperl-backward-to-start-of-expr': Likewise
+;;; `cperl-forward-to-end-of-expr': Likewise
+;;; `cperl-invert-if-unless': Works in "the opposite way" too
+;;; Cursor position on return is on the switch-word
+;;; Indents comments better
+;;; `REx-interpolated': New text attribute
+;;; `cperl-next-interpolated-REx': New function
+;;; `cperl-next-interpolated-REx-0': Likewise
+;;; `cperl-next-interpolated-REx-1': Likewise
+;;; "\C-c\C-x", "\C-c\C-y", "\C-c\C-v": New keybinding for these functions
+;;; Perl/Regexp menu: 3 new entries for `cperl-next-interpolated-REx'
+;;; `cperl-praise': Mention finded interpolated RExen
+
+;;; After 5.19:
+;;; `cperl-init-faces': Highlight %$foo, @$foo too
+;;; `cperl-short-docs': Better docs for system, exec
+;;; `cperl-find-pods-heres': Better detect << after print {FH} <<EOF etc.
+;;; Would not find HERE-doc ended by EOF without NL
+;;; `cperl-short-docs': Correct not-doubled \-escapes
+;;; start block: Put some `defvar' for stuff gone from XEmacs
+
+;;; After 5.20:
+;;; initial comment: Extend copyright, fix email address
+;;; `cperl-indent-comment-at-column-0': New customization variable
+;;; `cperl-comment-indent': Indentation after $#a would increasy by 1
+;;; `cperl-mode': Make `defun-prompt-regexp' grok BEGIN/END etc
+;;; `cperl-find-pods-heres': Mark CODE of s///e as `syntax-type' `multiline'
+;;; `cperl-at-end-of-expr': Would fail if @BAR=12 follows after ";"
+;;; `cperl-init-faces': If `cperl-highlight-variables-indiscriminately'
+;;; highlight $ in $foo too (UNTESTED)
+;;; `cperl-set-style': Docstring missed some available styles
+;;; toplevel: Menubar/Perl/Indent-Styles had FSF, now K&R
+;;; Change "Current" to "Memorize Current"
+;;; `cperl-indent-wrt-brace': New customization variable; the default is
+;;; as for pre-5.2 version
+;;; `cperl-styles-entries': Keep `cperl-extra-newline-before-brace-multiline'
+;;; `cperl-style-alist': Likewise
+;;; `cperl-fix-line-spacing': Support `cperl-merge-trailing-else' being nil,
+;;; and `cperl-extra-newline-before-brace' etc
+;;; being t
+;;; `cperl-indent-exp': Plans B and C to find continuation blocks even
+;;; if `cperl-extra-newline-before-brace' is t
+
+;;; After 5.21:
+;;; Improve some docstrings concerning indentation.
+;;; `cperl-indent-rules-alist': New variable
+;;; `cperl-sniff-for-indent': New function name
+;; (separated from `cperl-calculate-indent')
+;;; `cperl-calculate-indent': Separated the sniffer and the indenter;
+;;; uses `cperl-sniff-for-indent' now
+;;; `cperl-comment-indent': Test for `cperl-indent-comment-at-column-0'
+;;; was inverted;
+;;; Support `comment-column' = 0
+
+;;; After 5.22:
+;;; `cperl-where-am-i': Remove function
+;;; `cperl-backward-to-noncomment': Would go too far when skipping POD/HEREs
+;;; `cperl-sniff-for-indent': [string] and [comment] were inverted
+;;; When looking for label, skip s:m:y:tr
+;;; `cperl-indent-line': Likewise.
+;;; `cperl-mode': `font-lock-multiline' was assumed auto-local
+;;; `cperl-windowed-init': Wrong `ps-print' handling
+;;; (both thanks to Chong Yidong)
+;;; `cperl-look-at-leading-count': Could fail with unfinished RExen
+;;; `cperl-find-pods-heres': If the second part of s()[] is missing,
+;;; could try to highlight delimiters...
+
+;;; Code:
+\f
+(if (fboundp 'eval-when-compile)
+ (eval-when-compile
+ (condition-case nil
+ (require 'custom)
+ (error nil))
+ (condition-case nil
+ (require 'man)
+ (error nil))
+ (defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
+ (defvar cperl-can-font-lock
+ (or cperl-xemacs-p
+ (and (boundp 'emacs-major-version)
+ (or window-system
+ (> emacs-major-version 20)))))
+ (if cperl-can-font-lock
+ (require 'font-lock))
+ (defvar msb-menu-cond)
+ (defvar gud-perldb-history)
+ (defvar font-lock-background-mode) ; not in Emacs
+ (defvar font-lock-display-type) ; ditto
+ (defvar paren-backwards-message) ; Not in newer XEmacs?
+ (defvar vc-rcs-header) ; likewise?
+ (defvar vc-sccs-header) ; likewise?
+ (or (fboundp 'defgroup)
+ (defmacro defgroup (name val doc &rest arr)
+ nil))
+ (or (fboundp 'custom-declare-variable)
+ (defmacro defcustom (name val doc &rest arr)
+ (` (defvar (, name) (, val) (, doc)))))
+ (or (and (fboundp 'custom-declare-variable)
+ (string< "19.31" emacs-version)) ; Checked with 19.30: defface does not work
+ (defmacro defface (&rest arr)
+ nil))
+ ;; Avoid warning (tmp definitions)
+ (or (fboundp 'x-color-defined-p)
+ (defmacro x-color-defined-p (col)
+ (cond ((fboundp 'color-defined-p) (` (color-defined-p (, col))))
+ ;; XEmacs >= 19.12
+ ((fboundp 'valid-color-name-p) (` (valid-color-name-p (, col))))
+ ;; XEmacs 19.11
+ ((fboundp 'x-valid-color-name-p) (` (x-valid-color-name-p (, col))))
+ (t '(error "Cannot implement color-defined-p")))))
+ (defmacro cperl-is-face (arg) ; Takes quoted arg
+ (cond ((fboundp 'find-face)
+ (` (find-face (, arg))))
+ (;;(and (fboundp 'face-list)
+ ;; (face-list))
+ (fboundp 'face-list)
+ (` (member (, arg) (and (fboundp 'face-list)
+ (face-list)))))
+ (t
+ (` (boundp (, arg))))))
+ (defmacro cperl-make-face (arg descr) ; Takes unquoted arg
+ (cond ((fboundp 'make-face)
+ (` (make-face (quote (, arg)))))
+ (t
+ (` (defvar (, arg) (quote (, arg)) (, descr))))))
+ (defmacro cperl-force-face (arg descr) ; Takes unquoted arg
+ (` (progn
+ (or (cperl-is-face (quote (, arg)))
+ (cperl-make-face (, arg) (, descr)))
+ (or (boundp (quote (, arg))) ; We use unquoted variants too
+ (defvar (, arg) (quote (, arg)) (, descr))))))
+ (if cperl-xemacs-p
+ (defmacro cperl-etags-snarf-tag (file line)
+ (` (progn
+ (beginning-of-line 2)
+ (list (, file) (, line)))))
+ (defmacro cperl-etags-snarf-tag (file line)
+ (` (etags-snarf-tag))))
+ (if cperl-xemacs-p
+ (defmacro cperl-etags-goto-tag-location (elt)
+ (`;;(progn
+ ;; (switch-to-buffer (get-file-buffer (elt (, elt) 0)))
+ ;; (set-buffer (get-file-buffer (elt (, elt) 0)))
+ ;; Probably will not work due to some save-excursion???
+ ;; Or save-file-position?
+ ;; (message "Did I get to line %s?" (elt (, elt) 1))
+ (goto-line (string-to-int (elt (, elt) 1)))))
+ ;;)
+ (defmacro cperl-etags-goto-tag-location (elt)
+ (` (etags-goto-tag-location (, elt)))))))
+
+(defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
+
+(defvar cperl-can-font-lock
+ (or cperl-xemacs-p
+ (and (boundp 'emacs-major-version)
+ (or window-system
+ (> emacs-major-version 20)))))
+
+(condition-case nil
+ (require 'custom)
+ (error nil)) ; Already fixed by eval-when-compile
+
+(defun cperl-choose-color (&rest list)
+ (let (answer)
+ (while list
+ (or answer
+ (if (or (x-color-defined-p (car list))
+ (null (cdr list)))
+ (setq answer (car list))))
+ (setq list (cdr list)))
+ answer))
+
+\f
+(defgroup cperl nil
+ "Major mode for editing Perl code."
+ :prefix "cperl-"
+ :group 'languages)
+
+(defgroup cperl-indentation-details nil
+ "Indentation."
+ :prefix "cperl-"
+ :group 'cperl)
+
+(defgroup cperl-affected-by-hairy nil
+ "Variables affected by `cperl-hairy'."
+ :prefix "cperl-"
+ :group 'cperl)
+
+(defgroup cperl-autoinsert-details nil
+ "Auto-insert tuneup."
+ :prefix "cperl-"
+ :group 'cperl)
+
+(defgroup cperl-faces nil
+ "Fontification colors."
+ :prefix "cperl-"
+ :group 'cperl)
+
+(defgroup cperl-speed nil
+ "Speed vs. validity tuneup."
+ :prefix "cperl-"
+ :group 'cperl)
+
+(defgroup cperl-help-system nil
+ "Help system tuneup."
+ :prefix "cperl-"
+ :group 'cperl)
+
+\f
+(defcustom cperl-extra-newline-before-brace nil
"*Non-nil means that if, elsif, while, until, else, for, foreach
and do constructs look like:
instead of:
if () {
- }
-")
-
-(defvar cperl-indent-level 2
- "*Indentation of CPerl statements with respect to containing block.")
-(defvar cperl-lineup-step nil
+ }"
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
+
+(defcustom cperl-extra-newline-before-brace-multiline
+ cperl-extra-newline-before-brace
+ "*Non-nil means the same as `cperl-extra-newline-before-brace', but
+for constructs with multiline if/unless/while/until/for/foreach condition."
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
+
+(defcustom cperl-indent-level 2
+ "*Indentation of CPerl statements with respect to containing block."
+ :type 'integer
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-lineup-step nil
"*`cperl-lineup' will always lineup at multiple of this number.
-If `nil', the value of `cperl-indent-level' will be used.")
-(defvar cperl-brace-imaginary-offset 0
+If nil, the value of `cperl-indent-level' will be used."
+ :type '(choice (const nil) integer)
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-brace-imaginary-offset 0
"*Imagined indentation of a Perl open brace that actually follows a statement.
An open brace following other text is treated as if it were this far
-to the right of the start of its line.")
-(defvar cperl-brace-offset 0
- "*Extra indentation for braces, compared with other text in same context.")
-(defvar cperl-label-offset -2
- "*Offset of CPerl label lines relative to usual indentation.")
-(defvar cperl-min-label-indent 1
- "*Minimal offset of CPerl label lines.")
-(defvar cperl-continued-statement-offset 2
- "*Extra indent for lines not starting new statements.")
-(defvar cperl-continued-brace-offset 0
+to the right of the start of its line."
+ :type 'integer
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-brace-offset 0
+ "*Extra indentation for braces, compared with other text in same context."
+ :type 'integer
+ :group 'cperl-indentation-details)
+(defcustom cperl-label-offset -2
+ "*Offset of CPerl label lines relative to usual indentation."
+ :type 'integer
+ :group 'cperl-indentation-details)
+(defcustom cperl-min-label-indent 1
+ "*Minimal offset of CPerl label lines."
+ :type 'integer
+ :group 'cperl-indentation-details)
+(defcustom cperl-continued-statement-offset 2
+ "*Extra indent for lines not starting new statements."
+ :type 'integer
+ :group 'cperl-indentation-details)
+(defcustom cperl-continued-brace-offset 0
"*Extra indent for substatements that start with open-braces.
-This is in addition to cperl-continued-statement-offset.")
-(defvar cperl-close-paren-offset -1
- "*Extra indent for substatements that start with close-parenthesis.")
-
-(defvar cperl-auto-newline nil
+This is in addition to cperl-continued-statement-offset."
+ :type 'integer
+ :group 'cperl-indentation-details)
+(defcustom cperl-close-paren-offset -1
+ "*Extra indent for substatements that start with close-parenthesis."
+ :type 'integer
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-indent-wrt-brace t
+ "*Non-nil means indent statements in if/etc block relative brace, not if/etc.
+Versions 5.2 ... 5.20 behaved as if this were `nil'."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-auto-newline nil
"*Non-nil means automatically newline before and after braces,
-and after colons and semicolons, inserted in CPerl code. The following
+and after colons and semicolons, inserted in CPerl code. The following
\\[cperl-electric-backspace] will remove the inserted whitespace.
-Insertion after colons requires both this variable and
-`cperl-auto-newline-after-colon' set.")
-
-(defvar cperl-auto-newline-after-colon nil
+Insertion after colons requires both this variable and
+`cperl-auto-newline-after-colon' set."
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
+
+(defcustom cperl-autoindent-on-semi nil
+ "*Non-nil means automatically indent after insertion of (semi)colon.
+Active if `cperl-auto-newline' is false."
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
+
+(defcustom cperl-auto-newline-after-colon nil
"*Non-nil means automatically newline even after colons.
-Subject to `cperl-auto-newline' setting.")
+Subject to `cperl-auto-newline' setting."
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
-(defvar cperl-tab-always-indent t
+(defcustom cperl-tab-always-indent t
"*Non-nil means TAB in CPerl mode should always reindent the current line,
-regardless of where in the line point is when the TAB command is used.")
-
-(defvar cperl-font-lock nil
- "*Non-nil (and non-null) means CPerl buffers will use font-lock-mode.
-Can be overwritten by `cperl-hairy' if nil.")
-
-(defvar cperl-electric-lbrace-space nil
- "*Non-nil (and non-null) means { after $ in CPerl buffers should be preceeded by ` '.
-Can be overwritten by `cperl-hairy' if nil.")
+regardless of where in the line point is when the TAB command is used."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-font-lock nil
+ "*Non-nil (and non-null) means CPerl buffers will use `font-lock-mode'.
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-electric-lbrace-space nil
+ "*Non-nil (and non-null) means { after $ should be preceded by ` '.
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-electric-parens-string "({[]})<"
+ "*String of parentheses that should be electric in CPerl.
+Closing ones are electric only if the region is highlighted."
+ :type 'string
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-electric-parens nil
+ "*Non-nil (and non-null) means parentheses should be electric in CPerl.
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
-(defvar cperl-electric-parens-string "({[<"
- "*String of parentheses that should be electric in CPerl.")
+(defvar zmacs-regions) ; Avoid warning
-(defvar cperl-electric-parens nil
- "*Non-nil (and non-null) means parentheses should be electric in CPerl.
-Can be overwritten by `cperl-hairy' if nil.")
-(defvar cperl-electric-parens-mark
+(defcustom cperl-electric-parens-mark
(and window-system
(or (and (boundp 'transient-mark-mode) ; For Emacs
transient-mark-mode)
(and (boundp 'zmacs-regions) ; For XEmacs
zmacs-regions)))
"*Not-nil means that electric parens look for active mark.
-Default is yes if there is visual feedback on mark.")
+Default is yes if there is visual feedback on mark."
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
-(defvar cperl-electric-parens-mark (and window-system transient-mark-mode)
- "*Not-nil means that electric parens look for active mark.
-Default is yes if there is visual feedback on mark.")
-
-(defvar cperl-electric-linefeed nil
+(defcustom cperl-electric-linefeed nil
"*If true, LFD should be hairy in CPerl, otherwise C-c LFD is hairy.
In any case these two mean plain and hairy linefeeds together.
-Can be overwritten by `cperl-hairy' if nil.")
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
-(defvar cperl-electric-keywords nil
+(defcustom cperl-electric-keywords nil
"*Not-nil (and non-null) means keywords are electric in CPerl.
-Can be overwritten by `cperl-hairy' if nil.")
-
-(defvar cperl-hairy nil
- "*Not-nil means all the bells and whistles are enabled in CPerl.")
-
-(defvar cperl-comment-column 32
- "*Column to put comments in CPerl (use \\[cperl-indent]' to lineup with code).")
-
-(defvar cperl-vc-header-alist '((SCCS "$sccs = '%W\%' ;")
- (RCS "$rcs = ' $Id\$ ' ;"))
- "*What to use as `vc-header-alist' in CPerl.")
-
-(defvar cperl-info-on-command-no-prompt nil
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-electric-backspace-untabify t
+ "*Not-nil means electric-backspace will untabify in CPerl."
+ :type 'boolean
+ :group 'cperl-autoinsert-details)
+
+(defcustom cperl-hairy nil
+ "*Not-nil means most of the bells and whistles are enabled in CPerl.
+Affects: `cperl-font-lock', `cperl-electric-lbrace-space',
+`cperl-electric-parens', `cperl-electric-linefeed', `cperl-electric-keywords',
+`cperl-info-on-command-no-prompt', `cperl-clobber-lisp-bindings',
+`cperl-lazy-help-time'."
+ :type 'boolean
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-comment-column 32
+ "*Column to put comments in CPerl (use \\[cperl-indent] to lineup with code)."
+ :type 'integer
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-indent-comment-at-column-0 nil
+ "*Non-nil means that comment started at column 0 should be indentable."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-vc-sccs-header '("($sccs) = ('%W\%' =~ /(\\d+(\\.\\d+)+)/) ;")
+ "*Special version of `vc-sccs-header' that is used in CPerl mode buffers."
+ :type '(repeat string)
+ :group 'cperl)
+
+(defcustom cperl-vc-rcs-header '("($rcs) = (' $Id\$ ' =~ /(\\d+(\\.\\d+)+)/);")
+ "*Special version of `vc-rcs-header' that is used in CPerl mode buffers."
+ :type '(repeat string)
+ :group 'cperl)
+
+;; This became obsolete...
+(defcustom cperl-vc-header-alist '()
+ "*What to use as `vc-header-alist' in CPerl.
+Obsolete, with newer Emacsen use `cperl-vc-rcs-header' or
+`cperl-vc-sccs-header' instead. If this list is empty, `vc-header-alist'
+will be reconstructed basing on these two variables."
+ :type '(repeat (list symbol string))
+ :group 'cperl)
+
+(defcustom cperl-clobber-mode-lists
+ (not
+ (and
+ (boundp 'interpreter-mode-alist)
+ (assoc "miniperl" interpreter-mode-alist)
+ (assoc "\\.\\([pP][Llm]\\|al\\)$" auto-mode-alist)))
+ "*Whether to install us into `interpreter-' and `extension' mode lists."
+ :type 'boolean
+ :group 'cperl)
+
+(defcustom cperl-info-on-command-no-prompt nil
"*Not-nil (and non-null) means not to prompt on C-h f.
The opposite behaviour is always available if prefixed with C-c.
-Can be overwritten by `cperl-hairy' if nil.")
-
-(defvar cperl-lazy-help-time nil
- "*Not-nil (and non-null) means to show lazy help after given idle time.")
-
-(defvar cperl-pod-face 'font-lock-comment-face
- "*The result of evaluation of this expression is used for pod highlighting.")
-
-(defvar cperl-pod-head-face 'font-lock-variable-name-face
- "*The result of evaluation of this expression is used for pod highlighting.
-Font for POD headers.")
-
-(defvar cperl-here-face 'font-lock-string-face
- "*The result of evaluation of this expression is used for here-docs highlighting.")
-
-(defvar cperl-pod-here-fontify '(featurep 'font-lock)
- "*Not-nil after evaluation means to highlight pod and here-docs sections.")
-
-(defvar cperl-pod-here-scan t
- "*Not-nil means look for pod and here-docs sections during startup.
-You can always make lookup from menu or using \\[cperl-find-pods-heres].")
-
-(defvar cperl-imenu-addback nil
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-clobber-lisp-bindings nil
+ "*Not-nil (and non-null) means not overwrite C-h f.
+The function is available on \\[cperl-info-on-command], \\[cperl-get-help].
+Can be overwritten by `cperl-hairy' if nil."
+ :type '(choice (const null) boolean)
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-lazy-help-time nil
+ "*Not-nil (and non-null) means to show lazy help after given idle time.
+Can be overwritten by `cperl-hairy' to be 5 sec if nil."
+ :type '(choice (const null) (const nil) integer)
+ :group 'cperl-affected-by-hairy)
+
+(defcustom cperl-pod-face 'font-lock-comment-face
+ "*The result of evaluation of this expression is used for POD highlighting."
+ :type 'face
+ :group 'cperl-faces)
+
+(defcustom cperl-pod-head-face 'font-lock-variable-name-face
+ "*The result of evaluation of this expression is used for POD highlighting.
+Font for POD headers."
+ :type 'face
+ :group 'cperl-faces)
+
+(defcustom cperl-here-face 'font-lock-string-face
+ "*The result of evaluation of this expression is used for here-docs highlighting."
+ :type 'face
+ :group 'cperl-faces)
+
+;;; Some double-evaluation happened with font-locks... Needed with 21.2...
+(defvar cperl-singly-quote-face cperl-xemacs-p)
+
+(defcustom cperl-invalid-face ; Does not customize with '' on XEmacs
+ (if cperl-singly-quote-face
+ 'underline ''underline) ; On older Emacsen was evaluated by `font-lock'
+ (if cperl-singly-quote-face
+ "*This face is used for highlighting trailing whitespace."
+ "*The result of evaluation of this expression highlights trailing whitespace.")
+ :type 'face
+ :group 'cperl-faces)
+
+(defcustom cperl-pod-here-fontify '(featurep 'font-lock)
+ "*Not-nil after evaluation means to highlight POD and here-docs sections."
+ :type 'boolean
+ :group 'cperl-faces)
+
+(defcustom cperl-fontify-m-as-s t
+ "*Not-nil means highlight 1arg regular expressions operators same as 2arg."
+ :type 'boolean
+ :group 'cperl-faces)
+
+(defcustom cperl-highlight-variables-indiscriminately nil
+ "*Non-nil means perform additional highlighting on variables.
+Currently only changes how scalar variables are highlighted.
+Note that that variable is only read at initialization time for
+the variable `perl-font-lock-keywords-2', so changing it after you've
+entered CPerl mode the first time will have no effect."
+ :type 'boolean
+ :group 'cperl)
+
+(defcustom cperl-pod-here-scan t
+ "*Not-nil means look for POD and here-docs sections during startup.
+You can always make lookup from menu or using \\[cperl-find-pods-heres]."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-regexp-scan t
+ "*Not-nil means make marking of regular expression more thorough.
+Effective only with `cperl-pod-here-scan'."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-hook-after-change t
+ "*Not-nil means install hook to know which regions of buffer are changed.
+May significantly speed up delayed fontification. Changes take effect
+after reload."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-imenu-addback nil
"*Not-nil means add backreferences to generated `imenu's.
-May require patched `imenu' and `imenu-go'.")
-
-(defvar cperl-info-page "perl"
- "Name of the info page containing perl docs.
-Older version of this page was called `perl5', newer `perl'.")
+May require patched `imenu' and `imenu-go'. Obsolete."
+ :type 'boolean
+ :group 'cperl-help-system)
+
+(defcustom cperl-max-help-size 66
+ "*Non-nil means shrink-wrapping of info-buffer allowed up to these percents."
+ :type '(choice integer (const nil))
+ :group 'cperl-help-system)
+
+(defcustom cperl-shrink-wrap-info-frame t
+ "*Non-nil means shrink-wrapping of info-buffer-frame allowed."
+ :type 'boolean
+ :group 'cperl-help-system)
+
+(defcustom cperl-info-page "perl"
+ "*Name of the info page containing perl docs.
+Older version of this page was called `perl5', newer `perl'."
+ :type 'string
+ :group 'cperl-help-system)
+
+(defcustom cperl-use-syntax-table-text-property
+ (boundp 'parse-sexp-lookup-properties)
+ "*Non-nil means CPerl sets up and uses `syntax-table' text property."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-use-syntax-table-text-property-for-tags
+ cperl-use-syntax-table-text-property
+ "*Non-nil means: set up and use `syntax-table' text property generating TAGS."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-scan-files-regexp "\\.\\([pP][Llm]\\|xs\\)$"
+ "*Regexp to match files to scan when generating TAGS."
+ :type 'regexp
+ :group 'cperl)
+
+(defcustom cperl-noscan-files-regexp
+ "/\\(\\.\\.?\\|SCCS\\|RCS\\|CVS\\|blib\\)$"
+ "*Regexp to match files/dirs to skip when generating TAGS."
+ :type 'regexp
+ :group 'cperl)
+
+(defcustom cperl-regexp-indent-step nil
+ "*Indentation used when beautifying regexps.
+If nil, the value of `cperl-indent-level' will be used."
+ :type '(choice integer (const nil))
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-indent-left-aligned-comments t
+ "*Non-nil means that the comment starting in leftmost column should indent."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-under-as-char t
+ "*Non-nil means that the _ (underline) should be treated as word char."
+ :type 'boolean
+ :group 'cperl)
+
+(defcustom cperl-extra-perl-args ""
+ "*Extra arguments to use when starting Perl.
+Currently used with `cperl-check-syntax' only."
+ :type 'string
+ :group 'cperl)
+
+(defcustom cperl-message-electric-keyword t
+ "*Non-nil means that the `cperl-electric-keyword' prints a help message."
+ :type 'boolean
+ :group 'cperl-help-system)
+
+(defcustom cperl-indent-region-fix-constructs 1
+ "*Amount of space to insert between `}' and `else' or `elsif'
+in `cperl-indent-region'. Set to nil to leave as is. Values other
+than 1 and nil will probably not work."
+ :type '(choice (const nil) (const 1))
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-break-one-line-blocks-when-indent t
+ "*Non-nil means that one-line if/unless/while/until/for/foreach BLOCKs
+need to be reformatted into multiline ones when indenting a region."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-fix-hanging-brace-when-indent t
+ "*Non-nil means that BLOCK-end `}' may be put on a separate line
+when indenting a region.
+Braces followed by else/elsif/while/until are excepted."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-merge-trailing-else t
+ "*Non-nil means that BLOCK-end `}' followed by else/elsif/continue
+may be merged to be on the same line when indenting a region."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-indent-parens-as-block nil
+ "*Non-nil means that non-block ()-, {}- and []-groups are indented as blocks,
+but for trailing \",\" inside the group, which won't increase indentation.
+One should tune up `cperl-close-paren-offset' as well."
+ :type 'boolean
+ :group 'cperl-indentation-details)
+
+(defcustom cperl-syntaxify-by-font-lock
+ (and cperl-can-font-lock
+ (boundp 'parse-sexp-lookup-properties))
+ "*Non-nil means that CPerl uses `font-lock's routines for syntaxification."
+ :type '(choice (const message) boolean)
+ :group 'cperl-speed)
+
+(defcustom cperl-syntaxify-unwind
+ t
+ "*Non-nil means that CPerl unwinds to a start of a long construction
+when syntaxifying a chunk of buffer."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-syntaxify-for-menu
+ t
+ "*Non-nil means that CPerl syntaxifies up to the point before showing menu.
+This way enabling/disabling of menu items is more correct."
+ :type 'boolean
+ :group 'cperl-speed)
+
+(defcustom cperl-ps-print-face-properties
+ '((font-lock-keyword-face nil nil bold shadow)
+ (font-lock-variable-name-face nil nil bold)
+ (font-lock-function-name-face nil nil bold italic box)
+ (font-lock-constant-face nil "LightGray" bold)
+ (cperl-array-face nil "LightGray" bold underline)
+ (cperl-hash-face nil "LightGray" bold italic underline)
+ (font-lock-comment-face nil "LightGray" italic)
+ (font-lock-string-face nil nil italic underline)
+ (cperl-nonoverridable-face nil nil italic underline)
+ (font-lock-type-face nil nil underline)
+ (font-lock-warning-face nil "LightGray" bold italic box)
+ (underline nil "LightGray" strikeout))
+ "List given as an argument to `ps-extend-face-list' in `cperl-ps-print'."
+ :type '(repeat (cons symbol
+ (cons (choice (const nil) string)
+ (cons (choice (const nil) string)
+ (repeat symbol)))))
+ :group 'cperl-faces)
+
+(if cperl-can-font-lock
+ (progn
+ (defvar cperl-dark-background
+ (cperl-choose-color "navy" "os2blue" "darkgreen"))
+ (defvar cperl-dark-foreground
+ (cperl-choose-color "orchid1" "orange"))
+
+ (defface cperl-nonoverridable-face
+ (` ((((class grayscale) (background light))
+ (:background "Gray90" :italic t :underline t))
+ (((class grayscale) (background dark))
+ (:foreground "Gray80" :italic t :underline t :bold t))
+ (((class color) (background light))
+ (:foreground "chartreuse3"))
+ (((class color) (background dark))
+ (:foreground (, cperl-dark-foreground)))
+ (t (:bold t :underline t))))
+ "Font Lock mode face used to highlight array names."
+ :group 'cperl-faces)
+
+ (defface cperl-array-face
+ (` ((((class grayscale) (background light))
+ (:background "Gray90" :bold t))
+ (((class grayscale) (background dark))
+ (:foreground "Gray80" :bold t))
+ (((class color) (background light))
+ (:foreground "Blue" :background "lightyellow2" :bold t))
+ (((class color) (background dark))
+ (:foreground "yellow" :background (, cperl-dark-background) :bold t))
+ (t (:bold t))))
+ "Font Lock mode face used to highlight array names."
+ :group 'cperl-faces)
+
+ (defface cperl-hash-face
+ (` ((((class grayscale) (background light))
+ (:background "Gray90" :bold t :italic t))
+ (((class grayscale) (background dark))
+ (:foreground "Gray80" :bold t :italic t))
+ (((class color) (background light))
+ (:foreground "Red" :background "lightyellow2" :bold t :italic t))
+ (((class color) (background dark))
+ (:foreground "Red" :background (, cperl-dark-background) :bold t :italic t))
+ (t (:bold t :italic t))))
+ "Font Lock mode face used to highlight hash names."
+ :group 'cperl-faces)))
\f
;;; Short extra-docs.
(defvar cperl-tips 'please-ignore-this-line
- "Get newest version of this package from
- ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
-and/or
- ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl
+ "Get maybe newer version of this package from
+ http://ilyaz.org/software/emacs
+Subdirectory `cperl-mode' may contain yet newer development releases and/or
+patches to related files.
+
+For best results apply to an older Emacs the patches from
+ ftp://ftp.math.ohio-state.edu/pub/users/ilya/cperl-mode/patches
+\(this upgrades syntax-parsing abilities of RMS Emaxen v19.34 and
+v20.2 up to the level of RMS Emacs v20.3 - a must for a good Perl
+mode.) As of beginning of 2003, XEmacs may provide a similar ability.
Get support packages choose-color.el (or font-lock-extra.el before
19.30), imenu-go.el from the same place. \(Look for other files there
-too... ;-) Get a patch for imenu.el in 19.29. Note that for 19.30 and
-later you should use choose-color.el *instead* of font-lock-extra.el
+too... ;-). Get a patch for imenu.el in 19.29. Note that for 19.30 and
+later you should use choose-color.el *instead* of font-lock-extra.el
\(and you will not get smart highlighting in C :-().
Note that to enable Compile choices in the menu you need to install
mode-compile.el.
-Get perl5-info from
- $CPAN/doc/manual/info/perl-info.tar.gz
-older version was on
- http://www.metronet.com:70/9/perlinfo/perl5/manual/perl5-info.tar.gz
+If your Emacs does not default to `cperl-mode' on Perl files, and you
+want it to: put the following into your .emacs file:
+
+ (autoload 'perl-mode \"cperl-mode\" \"alternate mode for editing Perl programs\" t)
+
+or
+
+ (defalias 'perl-mode 'cperl-mode)
+
+Get perl5-info from
+ $CPAN/doc/manual/info/perl5-old/perl5-info.tar.gz
+Also, one can generate a newer documentation running `pod2texi' converter
+ $CPAN/doc/manual/info/perl5/pod2texi-0.1.tar.gz
If you use imenu-go, run imenu on perl5-info buffer (you can do it
-from CPerl menu). If many files are related, generate TAGS files from
-Tools/Tags submenu in CPerl menu.
+from Perl menu). If many files are related, generate TAGS files from
+Tools/Tags submenu in Perl menu.
If some class structure is too complicated, use Tools/Hierarchy-view
-from CPerl menu, or hierarchic view of imenu. The second one uses the
+from Perl menu, or hierarchic view of imenu. The second one uses the
current buffer only, the first one requires generation of TAGS from
-CPerl/Tools/Tags menu beforehand.
+Perl/Tools/Tags menu beforehand.
-Run CPerl/Tools/Insert-spaces-if-needed to fix your lazy typing.
+Run Perl/Tools/Insert-spaces-if-needed to fix your lazy typing.
-Switch auto-help on/off with CPerl/Tools/Auto-help.
+Switch auto-help on/off with Perl/Tools/Auto-help.
-Before reporting (non-)problems look in the problem section on what I
-know about them.")
+Though with contemporary Emaxen CPerl mode should maintain the correct
+parsing of Perl even when editing, sometimes it may be lost. Fix this by
-(defvar cperl-problems 'please-ignore-this-line
-"Emacs has a _very_ restricted syntax parsing engine.
+ M-x norm RET
-It may be corrected on the level of C code, please look in the
-`non-problems' section if you want to volunteer.
+or
-CPerl mode tries to corrects some Emacs misunderstandings, however,
-for efficiency reasons the degree of correction is different for
-different operations. The partially corrected problems are: POD
-sections, here-documents, regexps. The operations are: highlighting,
-indentation, electric keywords, electric braces.
+ \\[normal-mode]
+
+In cases of more severe confusion sometimes it is helpful to do
+
+ M-x load-l RET cperl-mode RET
+ M-x norm RET
+
+or
+
+ \\[load-library] cperl-mode RET
+ \\[normal-mode]
+
+Before reporting (non-)problems look in the problem section of online
+micro-docs on what I know about CPerl problems.")
+
+(defvar cperl-problems 'please-ignore-this-line
+ "Description of problems in CPerl mode.
+Some faces will not be shown on some versions of Emacs unless you
+install choose-color.el, available from
+ http://ilyaz.org/software/emacs
+
+`fill-paragraph' on a comment may leave the point behind the
+paragraph. It also triggers a bug in some versions of Emacs (CPerl tries
+to detect it and bulk out).
+
+See documentation of a variable `cperl-problems-old-emaxen' for the
+problems which disappear if you upgrade Emacs to a reasonably new
+version (20.3 for RMS Emacs, and those of 2004 for XEmacs).")
+
+(defvar cperl-problems-old-emaxen 'please-ignore-this-line
+ "Description of problems in CPerl mode specific for older Emacs versions.
+
+Emacs had a _very_ restricted syntax parsing engine until RMS's Emacs
+20.1. Most problems below are corrected starting from this version of
+Emacs, and all of them should be fixed in RMS's version 20.3. (Or apply
+patches to Emacs 19.33/34 - see tips.) XEmacs was very backward in
+this respect (until 2003).
+
+Note that even with newer Emacsen in some very rare cases the details
+of interaction of `font-lock' and syntaxification may be not cleaned
+up yet. You may get slightly different colors basing on the order of
+fontification and syntaxification. Say, the initial faces is correct,
+but editing the buffer breaks this.
+
+Even with older Emacsen CPerl mode tries to corrects some Emacs
+misunderstandings, however, for efficiency reasons the degree of
+correction is different for different operations. The partially
+corrected problems are: POD sections, here-documents, regexps. The
+operations are: highlighting, indentation, electric keywords, electric
+braces.
This may be confusing, since the regexp s#//#/#\; may be highlighted
as a comment, but it will be recognized as a regexp by the indentation
-code. Or the opposite case, when a pod section is highlighted, but
-breaks the indentation of the following code.
+code. Or the opposite case, when a POD section is highlighted, but
+may break the indentation of the following code (though indentation
+should work if the balance of delimiters is not broken by POD).
The main trick (to make $ a \"backslash\") makes constructions like
-${aaa} look like unbalanced braces. The only trick I can think of is
-to insert it as $ {aaa} (legal in perl5, not in perl4).
+${aaa} look like unbalanced braces. The only trick I can think of is
+to insert it as $ {aaa} (legal in perl5, not in perl4).
Similar problems arise in regexps, when /(\\s|$)/ should be rewritten
-as /($|\\s)/. Note that such a transposition is not always possible
-:-(. " )
+as /($|\\s)/. Note that such a transposition is not always possible.
+
+The solution is to upgrade your Emacs or patch an older one. Note
+that RMS's 20.2 has some bugs related to `syntax-table' text
+properties. Patches are available on the main CPerl download site,
+and on CPAN.
+
+If these bugs cannot be fixed on your machine (say, you have an inferior
+environment and cannot recompile), you may still disable all the fancy stuff
+via `cperl-use-syntax-table-text-property'.")
(defvar cperl-non-problems 'please-ignore-this-line
-"As you know from `problems' section, Perl syntax is too hard for CPerl.
+"As you know from `problems' section, Perl syntax is too hard for CPerl on
+older Emacsen. Here is what you can do if you cannot upgrade, or if
+you want to switch off these capabilities on RMS Emacs 20.2 (+patches) or 20.3
+or better. Please skip this docs if you run a capable Emacs already.
-Most the time, if you write your own code, you may find an equivalent
-\(and almost as readable) expression.
+Most of the time, if you write your own code, you may find an equivalent
+\(and almost as readable) expression (what is discussed below is usually
+not relevant on newer Emacsen, since they can do it automatically).
-Try to help it: add comments with embedded quotes to fix CPerl
+Try to help CPerl: add comments with embedded quotes to fix CPerl
misunderstandings about the end of quotation:
$a='500$'; # ';
-You won't need it too often. The reason: $ \"quotes\" the following
+You won't need it too often. The reason: $ \"quotes\" the following
character (this saves a life a lot of times in CPerl), thus due to
-Emacs parsing rules it does not consider tick after the dollar as a
-closing one, but as a usual character.
-
-Now the indentation code is pretty wise. The only drawback is that it
-relies on Emacs parsing to find matching parentheses. And Emacs
-*cannot* match parentheses in Perl 100% correctly. So
+Emacs parsing rules it does not consider tick (i.e., ' ) after a
+dollar as a closing one, but as a usual character. This is usually
+correct, but not in the above context.
+
+Even with older Emacsen the indentation code is pretty wise. The only
+drawback is that it relied on Emacs parsing to find matching
+parentheses. And Emacs *could not* match parentheses in Perl 100%
+correctly. So
1 if s#//#/#;
-will not break indentation, but
+would not break indentation, but
1 if ( s#//#/# );
-will.
+would. Upgrade.
+
+By similar reasons
+ s\"abc\"def\";
+could confuse CPerl a lot.
If you still get wrong indentation in situation that you think the
code should be able to parse, try:
a) Check what Emacs thinks about balance of your parentheses.
b) Supply the code to me (IZ).
-Pods are treated _very_ rudimentally. Here-documents are not treated
-at all (except highlighting and inhibiting indentation). (This may
-change some time. RMS approved making syntax lookup recognize text
-attributes, but volunteers are needed to change Emacs C code.)
+Pods were treated _very_ rudimentally. Here-documents were not
+treated at all (except highlighting and inhibiting indentation). Upgrade.
To speed up coloring the following compromises exist:
a) sub in $mypackage::sub may be highlighted.
c) if your regexp contains a keyword (like \"s\"), it may be highlighted.
-Imenu in 19.31 is broken. Set `imenu-use-keymap-menu' to t, and remove
+Imenu in 19.31 is broken. Set `imenu-use-keymap-menu' to t, and remove
`car' before `imenu-choose-buffer-index' in `imenu'.
+`imenu-add-to-menubar' in 20.2 is broken.
+A lot of things on XEmacs may be broken too, judging by bug reports I
+receive. Note that some releases of XEmacs are better than the others
+as far as bugs reports I see are concerned.")
+
+(defvar cperl-praise 'please-ignore-this-line
+ "Advantages of CPerl mode.
+
+0) It uses the newest `syntax-table' property ;-);
+
+1) It does 99% of Perl syntax correct (as opposed to 80-90% in Perl
+mode - but the latter number may have improved too in last years) even
+with old Emaxen which do not support `syntax-table' property.
+
+When using `syntax-table' property for syntax assist hints, it should
+handle 99.995% of lines correct - or somesuch. It automatically
+updates syntax assist hints when you edit your script.
+
+2) It is generally believed to be \"the most user-friendly Emacs
+package\" whatever it may mean (I doubt that the people who say similar
+things tried _all_ the rest of Emacs ;-), but this was not a lonely
+voice);
+
+3) Everything is customizable, one-by-one or in a big sweep;
+
+4) It has many easily-accessable \"tools\":
+ a) Can run program, check syntax, start debugger;
+ b) Can lineup vertically \"middles\" of rows, like `=' in
+ a = b;
+ cc = d;
+ c) Can insert spaces where this impoves readability (in one
+ interactive sweep over the buffer);
+ d) Has support for imenu, including:
+ 1) Separate unordered list of \"interesting places\";
+ 2) Separate TOC of POD sections;
+ 3) Separate list of packages;
+ 4) Hierarchical view of methods in (sub)packages;
+ 5) and functions (by the full name - with package);
+ e) Has an interface to INFO docs for Perl; The interface is
+ very flexible, including shrink-wrapping of
+ documentation buffer/frame;
+ f) Has a builtin list of one-line explanations for perl constructs.
+ g) Can show these explanations if you stay long enough at the
+ corresponding place (or on demand);
+ h) Has an enhanced fontification (using 3 or 4 additional faces
+ comparing to font-lock - basically, different
+ namespaces in Perl have different colors);
+ i) Can construct TAGS basing on its knowledge of Perl syntax,
+ the standard menu has 6 different way to generate
+ TAGS (if \"by directory\", .xs files - with C-language
+ bindings - are included in the scan);
+ j) Can build a hierarchical view of classes (via imenu) basing
+ on generated TAGS file;
+ k) Has electric parentheses, electric newlines, uses Abbrev
+ for electric logical constructs
+ while () {}
+ with different styles of expansion (context sensitive
+ to be not so bothering). Electric parentheses behave
+ \"as they should\" in a presence of a visible region.
+ l) Changes msb.el \"on the fly\" to insert a group \"Perl files\";
+ m) Can convert from
+ if (A) { B }
+ to
+ B if A;
+
+ n) Highlights (by user-choice) either 3-delimiters constructs
+ (such as tr/a/b/), or regular expressions and `y/tr';
+ o) Highlights trailing whitespace;
+ p) Is able to manipulate Perl Regular Expressions to ease
+ conversion to a more readable form.
+ q) Can ispell POD sections and HERE-DOCs.
+ r) Understands comments and character classes inside regular
+ expressions; can find matching () and [] in a regular expression.
+ s) Allows indentation of //x-style regular expressions;
+ t) Highlights different symbols in regular expressions according
+ to their function; much less problems with backslashitis;
+ u) Allows to find regular expressions which contain interpolated parts.
+
+5) The indentation engine was very smart, but most of tricks may be
+not needed anymore with the support for `syntax-table' property. Has
+progress indicator for indentation (with `imenu' loaded).
+
+6) Indent-region improves inline-comments as well; also corrects
+whitespace *inside* the conditional/loop constructs.
+
+7) Fill-paragraph correctly handles multi-line comments;
+
+8) Can switch to different indentation styles by one command, and restore
+the settings present before the switch.
+
+9) When doing indentation of control constructs, may correct
+line-breaks/spacing between elements of the construct.
+
+10) Uses a linear-time algorith for indentation of regions (on Emaxen with
+capable syntax engines).
+
+11) Syntax-highlight, indentation, sexp-recognition inside regular expressions.
+")
+
+(defvar cperl-speed 'please-ignore-this-line
+ "This is an incomplete compendium of what is available in other parts
+of CPerl documentation. (Please inform me if I skept anything.)
+
+There is a perception that CPerl is slower than alternatives. This part
+of documentation is designed to overcome this misconception.
+
+*By default* CPerl tries to enable the most comfortable settings.
+From most points of view, correctly working package is infinitely more
+comfortable than a non-correctly working one, thus by default CPerl
+prefers correctness over speed. Below is the guide how to change
+settings if your preferences are different.
+
+A) Speed of loading the file. When loading file, CPerl may perform a
+scan which indicates places which cannot be parsed by primitive Emacs
+syntax-parsing routines, and marks them up so that either
+
+ A1) CPerl may work around these deficiencies (for big chunks, mostly
+ PODs and HERE-documents), or
+ A2) On capable Emaxen CPerl will use improved syntax-handlings
+ which reads mark-up hints directly.
+
+ The scan in case A2 is much more comprehensive, thus may be slower.
+
+ User can disable syntax-engine-helping scan of A2 by setting
+ `cperl-use-syntax-table-text-property'
+ variable to nil (if it is set to t).
+
+ One can disable the scan altogether (both A1 and A2) by setting
+ `cperl-pod-here-scan'
+ to nil.
+
+B) Speed of editing operations.
+
+ One can add a (minor) speedup to editing operations by setting
+ `cperl-use-syntax-table-text-property'
+ variable to nil (if it is set to t). This will disable
+ syntax-engine-helping scan, thus will make many more Perl
+ constructs be wrongly recognized by CPerl, thus may lead to
+ wrongly matched parentheses, wrong indentation, etc.
+
+ One can unset `cperl-syntaxify-unwind'. This might speed up editing
+ of, say, long POD sections.")
+
+(defvar cperl-tips-faces 'please-ignore-this-line
+ "CPerl mode uses following faces for highlighting:
+
+ `cperl-array-face' Array names
+ `cperl-hash-face' Hash names
+ `font-lock-comment-face' Comments, PODs and whatever is considered
+ syntaxically to be not code
+ `font-lock-constant-face' HERE-doc delimiters, labels, delimiters of
+ 2-arg operators s/y/tr/ or of RExen,
+ `font-lock-warning-face' Special-cased m// and s//foo/,
+ `font-lock-function-name-face' _ as a target of a file tests, file tests,
+ subroutine names at the moment of definition
+ (except those conflicting with Perl operators),
+ package names (when recognized), format names
+ `font-lock-keyword-face' Control flow switch constructs, declarators
+ `cperl-nonoverridable-face' Non-overridable keywords, modifiers of RExen
+ `font-lock-string-face' Strings, qw() constructs, RExen, POD sections,
+ literal parts and the terminator of formats
+ and whatever is syntaxically considered
+ as string literals
+ `font-lock-type-face' Overridable keywords
+ `font-lock-variable-name-face' Variable declarations, indirect array and
+ hash names, POD headers/item names
+ `cperl-invalid-face' Trailing whitespace
+
+Note that in several situations the highlighting tries to inform about
+possible confusion, such as different colors for function names in
+declarations depending on what they (do not) override, or special cases
+m// and s/// which do not do what one would expect them to do.
+
+Help with best setup of these faces for printout requested (for each of
+the faces: please specify bold, italic, underline, shadow and box.)
+
+In regular expressions (except character classes):
+ `font-lock-string-face' \"Normal\" stuff and non-0-length constructs
+ `font-lock-constant-face': Delimiters
+ `font-lock-warning-face' Special-cased m// and s//foo/,
+ Mismatched closing delimiters, parens
+ we couldn't match, misplaced quantifiers,
+ unrecognized escape sequences
+ `cperl-nonoverridable-face' Modifiers, as gism in m/REx/gism
+ `font-lock-type-face' POSIX classes inside charclasses,
+ escape sequences with arguments (\x \23 \p \N)
+ and others match-a-char escape sequences
+ `font-lock-keyword-face' Capturing parens, and |
+ `font-lock-function-name-face' Special symbols: $ ^ . [ ] [^ ] (?{ }) (??{ })
+ `font-lock-builtin-face' \"Remaining\" 0-length constructs, executable
+ parts of a REx, not-capturing parens
+ `font-lock-variable-name-face' Interpolated constructs, embedded code
+ `font-lock-comment-face' Embedded comments
+
")
\f
;;; Portability stuff:
-(defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
-(defmacro cperl-define-key (fsf-key definition &optional xemacs-key)
- `(define-key cperl-mode-map
- ,(if xemacs-key
- `(if cperl-xemacs-p ,xemacs-key ,fsf-key)
- fsf-key)
- ,definition))
+(defmacro cperl-define-key (emacs-key definition &optional xemacs-key)
+ (` (define-key cperl-mode-map
+ (, (if xemacs-key
+ (` (if cperl-xemacs-p (, xemacs-key) (, emacs-key)))
+ emacs-key))
+ (, definition))))
-(defvar del-back-ch (car (append (where-is-internal 'delete-backward-char)
- (where-is-internal 'backward-delete-char-untabify)))
- "Character generated by key bound to delete-backward-char.")
+(defvar cperl-del-back-ch
+ (car (append (where-is-internal 'delete-backward-char)
+ (where-is-internal 'backward-delete-char-untabify)))
+ "Character generated by key bound to `delete-backward-char'.")
-(and (vectorp del-back-ch) (= (length del-back-ch) 1)
- (setq del-back-ch (aref del-back-ch 0)))
+(and (vectorp cperl-del-back-ch) (= (length cperl-del-back-ch) 1)
+ (setq cperl-del-back-ch (aref cperl-del-back-ch 0)))
+(defun cperl-mark-active () (mark)) ; Avoid undefined warning
(if cperl-xemacs-p
(progn
;; "Active regions" are on: use region only if active
;; "Active regions" are off: use region unconditionally
(defun cperl-use-region-p ()
- (if zmacs-regions (mark) t))
- (defun cperl-mark-active () (mark)))
+ (if zmacs-regions (mark) t)))
(defun cperl-use-region-p ()
(if transient-mark-mode mark-active t))
(defun cperl-mark-active () mark-active))
(defsubst cperl-enable-font-lock ()
- (or cperl-xemacs-p window-system))
+ cperl-can-font-lock)
+
+(defun cperl-putback-char (c) ; Emacs 19
+ (set 'unread-command-events (list c))) ; Avoid undefined warning
(if (boundp 'unread-command-events)
(if cperl-xemacs-p
(defun cperl-putback-char (c) ; XEmacs >= 19.12
- (setq unread-command-events (list (character-to-event c))))
- (defun cperl-putback-char (c) ; Emacs 19
- (setq unread-command-events (list c))))
+ (setq unread-command-events (list (eval '(character-to-event c))))))
(defun cperl-putback-char (c) ; XEmacs <= 19.11
- (setq unread-command-event (character-to-event c))))
+ (set 'unread-command-event (eval '(character-to-event c))))) ; Avoid warnings
(or (fboundp 'uncomment-region)
(defun uncomment-region (beg end)
'lazy-lock)
"Text property which inhibits refontification.")
-(defsubst cperl-put-do-not-fontify (from to)
- (put-text-property (max (point-min) (1- from))
- to cperl-do-not-fontify t))
-
+(defsubst cperl-put-do-not-fontify (from to &optional post)
+ ;; If POST, do not do it with postponed fontification
+ (if (and post cperl-syntaxify-by-font-lock)
+ nil
+ (put-text-property (max (point-min) (1- from))
+ to cperl-do-not-fontify t)))
+
+(defcustom cperl-mode-hook nil
+ "Hook run by CPerl mode."
+ :type 'hook
+ :group 'cperl)
+
+(defvar cperl-syntax-state nil)
+(defvar cperl-syntax-done-to nil)
+(defvar cperl-emacs-can-parse (> (length (save-excursion
+ (parse-partial-sexp (point) (point)))) 9))
\f
+;; Make customization possible "in reverse"
+(defsubst cperl-val (symbol &optional default hairy)
+ (cond
+ ((eq (symbol-value symbol) 'null) default)
+ (cperl-hairy (or hairy t))
+ (t (symbol-value symbol))))
+\f
+
+(defun cperl-make-indent (column &optional minimum keep)
+ "Makes indent of the current line the requested amount.
+Unless KEEP, removes the old indentation. Works around a bug in ancient
+versions of Emacs."
+ (let ((prop (get-text-property (point) 'syntax-type)))
+ (or keep
+ (delete-horizontal-space))
+ (indent-to column minimum)
+ ;; In old versions (e.g., 19.33) `indent-to' would not inherit properties
+ (and prop
+ (> (current-column) 0)
+ (save-excursion
+ (beginning-of-line)
+ (or (get-text-property (point) 'syntax-type)
+ (and (looking-at "\\=[ \t]")
+ (put-text-property (point) (match-end 0)
+ 'syntax-type prop)))))))
+
;;; Probably it is too late to set these guys already, but it can help later:
-(setq auto-mode-alist
- (append '(("\\.[pP][Llm]$" . perl-mode)) auto-mode-alist ))
-(and (boundp 'interpreter-mode-alist)
- (setq interpreter-mode-alist (append interpreter-mode-alist
- '(("miniperl" . perl-mode)))))
+(and cperl-clobber-mode-lists
+ (setq auto-mode-alist
+ (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
+ (and (boundp 'interpreter-mode-alist)
+ (setq interpreter-mode-alist (append interpreter-mode-alist
+ '(("miniperl" . perl-mode))))))
(if (fboundp 'eval-when-compile)
(eval-when-compile
- (condition-case nil
- (require 'imenu)
- (error nil))
- (condition-case nil
- (require 'easymenu)
- (error nil))
+ (mapcar (lambda (p)
+ (condition-case nil
+ (require p)
+ (error nil)))
+ '(imenu easymenu etags timer man info))
+ (if (fboundp 'ps-extend-face-list)
+ (defmacro cperl-ps-extend-face-list (arg)
+ (` (ps-extend-face-list (, arg))))
+ (defmacro cperl-ps-extend-face-list (arg)
+ (` (error "This version of Emacs has no `ps-extend-face-list'"))))
;; Calling `cperl-enable-font-lock' below doesn't compile on XEmacs,
;; macros instead of defsubsts don't work on Emacs, so we do the
- ;; expansion manually. Any other suggestions?
- (if (or (string-match "XEmacs\\|Lucid" emacs-version)
- window-system)
+ ;; expansion manually. Any other suggestions?
+ (if cperl-can-font-lock
(require 'font-lock))
- (require 'cl)
- ))
+ (require 'cl)))
(defvar cperl-mode-abbrev-table nil
- "Abbrev table in use in Cperl-mode buffers.")
+ "Abbrev table in use in CPerl mode buffers.")
(add-hook 'edit-var-mode-alist '(perl-mode (regexp . "^cperl-")))
(cperl-define-key ":" 'cperl-electric-terminator)
(cperl-define-key "\C-j" 'newline-and-indent)
(cperl-define-key "\C-c\C-j" 'cperl-linefeed)
+ (cperl-define-key "\C-c\C-t" 'cperl-invert-if-unless)
(cperl-define-key "\C-c\C-a" 'cperl-toggle-auto-newline)
(cperl-define-key "\C-c\C-k" 'cperl-toggle-abbrev)
+ (cperl-define-key "\C-c\C-w" 'cperl-toggle-construct-fix)
+ (cperl-define-key "\C-c\C-f" 'auto-fill-mode)
(cperl-define-key "\C-c\C-e" 'cperl-toggle-electric)
+ (cperl-define-key "\C-c\C-b" 'cperl-find-bad-style)
+ (cperl-define-key "\C-c\C-p" 'cperl-pod-spell)
+ (cperl-define-key "\C-c\C-d" 'cperl-here-doc-spell)
+ (cperl-define-key "\C-c\C-n" 'cperl-narrow-to-here-doc)
+ (cperl-define-key "\C-c\C-v" 'cperl-next-interpolated-REx)
+ (cperl-define-key "\C-c\C-x" 'cperl-next-interpolated-REx-0)
+ (cperl-define-key "\C-c\C-y" 'cperl-next-interpolated-REx-1)
+ (cperl-define-key "\C-c\C-ha" 'cperl-toggle-autohelp)
+ (cperl-define-key "\C-c\C-hp" 'cperl-perldoc)
+ (cperl-define-key "\C-c\C-hP" 'cperl-perldoc-at-point)
(cperl-define-key "\e\C-q" 'cperl-indent-exp) ; Usually not bound
+ (cperl-define-key [?\C-\M-\|] 'cperl-lineup
+ [(control meta |)])
;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
;;(cperl-define-key "\e;" 'cperl-indent-for-comment)
(cperl-define-key "\177" 'cperl-electric-backspace)
(cperl-define-key "\t" 'cperl-indent-command)
;; don't clobber the backspace binding:
- (cperl-define-key "\C-hf" 'cperl-info-on-command [(control h) f])
- (cperl-define-key "\C-c\C-hf" 'cperl-info-on-current-command
- [(control c) (control h) f])
- (cperl-define-key "\C-hv" 'cperl-get-help [(control h) v])
- (if (and cperl-xemacs-p
+ (cperl-define-key "\C-c\C-hF" 'cperl-info-on-command
+ [(control c) (control h) F])
+ (if (cperl-val 'cperl-clobber-lisp-bindings)
+ (progn
+ (cperl-define-key "\C-hf"
+ ;;(concat (char-to-string help-char) "f") ; does not work
+ 'cperl-info-on-command
+ [(control h) f])
+ (cperl-define-key "\C-hv"
+ ;;(concat (char-to-string help-char) "v") ; does not work
+ 'cperl-get-help
+ [(control h) v])
+ (cperl-define-key "\C-c\C-hf"
+ ;;(concat (char-to-string help-char) "f") ; does not work
+ (key-binding "\C-hf")
+ [(control c) (control h) f])
+ (cperl-define-key "\C-c\C-hv"
+ ;;(concat (char-to-string help-char) "v") ; does not work
+ (key-binding "\C-hv")
+ [(control c) (control h) v]))
+ (cperl-define-key "\C-c\C-hf" 'cperl-info-on-current-command
+ [(control c) (control h) f])
+ (cperl-define-key "\C-c\C-hv"
+ ;;(concat (char-to-string help-char) "v") ; does not work
+ 'cperl-get-help
+ [(control c) (control h) v]))
+ (if (and cperl-xemacs-p
(<= emacs-minor-version 11) (<= emacs-major-version 19))
(progn
;; substitute-key-definition is usefulness-deenhanced...
- (cperl-define-key "\M-q" 'cperl-fill-paragraph)
+ ;;;;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
(cperl-define-key "\e;" 'cperl-indent-for-comment)
(cperl-define-key "\e\C-\\" 'cperl-indent-region))
+ (or (boundp 'fill-paragraph-function)
+ (substitute-key-definition
+ 'fill-paragraph 'cperl-fill-paragraph
+ cperl-mode-map global-map))
(substitute-key-definition
'indent-sexp 'cperl-indent-exp
cperl-mode-map global-map)
(substitute-key-definition
- 'fill-paragraph 'cperl-fill-paragraph
- cperl-mode-map global-map)
- (substitute-key-definition
'indent-region 'cperl-indent-region
cperl-mode-map global-map)
(substitute-key-definition
'indent-for-comment 'cperl-indent-for-comment
cperl-mode-map global-map)))
+(defvar cperl-menu)
+(defvar cperl-lazy-installed)
+(defvar cperl-old-style nil)
(condition-case nil
(progn
(require 'easymenu)
- (easy-menu-define cperl-menu cperl-mode-map "Menu for CPerl mode"
- '("Perl"
- ["Beginning of function" beginning-of-defun t]
- ["End of function" end-of-defun t]
- ["Mark function" mark-defun t]
- ["Indent expression" cperl-indent-exp t]
- ["Fill paragraph/comment" cperl-fill-paragraph t]
- ["Line up a construction" cperl-lineup (cperl-use-region-p)]
- "----"
- ["Indent region" cperl-indent-region (cperl-use-region-p)]
- ["Comment region" cperl-comment-region (cperl-use-region-p)]
- ["Uncomment region" cperl-uncomment-region (cperl-use-region-p)]
- "----"
- ["Run" mode-compile (fboundp 'mode-compile)]
- ["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
- (get-buffer "*compilation*"))]
- ["Next error" next-error (get-buffer "*compilation*")]
- ["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
- "----"
- ["Debugger" cperl-db t]
- "----"
- ("Tools"
- ["Imenu" imenu (fboundp 'imenu)]
- ["Insert spaces if needed" cperl-find-bad-style t]
- ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
- ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
- ["Imenu on info" cperl-imenu-on-info (featurep 'imenu)]
- ("Tags"
+ (easy-menu-define
+ cperl-menu cperl-mode-map "Menu for CPerl mode"
+ '("Perl"
+ ["Beginning of function" beginning-of-defun t]
+ ["End of function" end-of-defun t]
+ ["Mark function" mark-defun t]
+ ["Indent expression" cperl-indent-exp t]
+ ["Fill paragraph/comment" cperl-fill-paragraph t]
+ "----"
+ ["Line up a construction" cperl-lineup (cperl-use-region-p)]
+ ["Invert if/unless/while etc" cperl-invert-if-unless t]
+ ("Regexp"
+ ["Beautify" cperl-beautify-regexp
+ cperl-use-syntax-table-text-property]
+ ["Beautify one level deep" (cperl-beautify-regexp 1)
+ cperl-use-syntax-table-text-property]
+ ["Beautify a group" cperl-beautify-level
+ cperl-use-syntax-table-text-property]
+ ["Beautify a group one level deep" (cperl-beautify-level 1)
+ cperl-use-syntax-table-text-property]
+ ["Contract a group" cperl-contract-level
+ cperl-use-syntax-table-text-property]
+ ["Contract groups" cperl-contract-levels
+ cperl-use-syntax-table-text-property]
+ "----"
+ ["Find next interpolated" cperl-next-interpolated-REx
+ (next-single-property-change (point-min) 'REx-interpolated)]
+ ["Find next interpolated (no //o)"
+ cperl-next-interpolated-REx-0
+ (or (text-property-any (point-min) (point-max) 'REx-interpolated t)
+ (text-property-any (point-min) (point-max) 'REx-interpolated 1))]
+ ["Find next interpolated (neither //o nor whole-REx)"
+ cperl-next-interpolated-REx-1
+ (text-property-any (point-min) (point-max) 'REx-interpolated t)])
+ ["Insert spaces if needed to fix style" cperl-find-bad-style t]
+ ["Refresh \"hard\" constructions" cperl-find-pods-heres t]
+ "----"
+ ["Indent region" cperl-indent-region (cperl-use-region-p)]
+ ["Comment region" cperl-comment-region (cperl-use-region-p)]
+ ["Uncomment region" cperl-uncomment-region (cperl-use-region-p)]
+ "----"
+ ["Run" mode-compile (fboundp 'mode-compile)]
+ ["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
+ (get-buffer "*compilation*"))]
+ ["Next error" next-error (get-buffer "*compilation*")]
+ ["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
+ "----"
+ ["Debugger" cperl-db t]
+ "----"
+ ("Tools"
+ ["Imenu" imenu (fboundp 'imenu)]
+ ["Imenu on Perl Info" cperl-imenu-on-info (featurep 'imenu)]
+ "----"
+ ["Ispell PODs" cperl-pod-spell
+ ;; Better not to update syntaxification here:
+ ;; debugging syntaxificatio can be broken by this???
+ (or
+ (get-text-property (point-min) 'in-pod)
+ (< (progn
+ (and cperl-syntaxify-for-menu
+ (cperl-update-syntaxification (point-max) (point-max)))
+ (next-single-property-change (point-min) 'in-pod nil (point-max)))
+ (point-max)))]
+ ["Ispell HERE-DOCs" cperl-here-doc-spell
+ (< (progn
+ (and cperl-syntaxify-for-menu
+ (cperl-update-syntaxification (point-max) (point-max)))
+ (next-single-property-change (point-min) 'here-doc-group nil (point-max)))
+ (point-max))]
+ ["Narrow to this HERE-DOC" cperl-narrow-to-here-doc
+ (eq 'here-doc (progn
+ (and cperl-syntaxify-for-menu
+ (cperl-update-syntaxification (point) (point)))
+ (get-text-property (point) 'syntax-type)))]
+ ["Select this HERE-DOC or POD section"
+ cperl-select-this-pod-or-here-doc
+ (memq (progn
+ (and cperl-syntaxify-for-menu
+ (cperl-update-syntaxification (point) (point)))
+ (get-text-property (point) 'syntax-type))
+ '(here-doc pod))]
+ "----"
+ ["CPerl pretty print (exprmntl)" cperl-ps-print
+ (fboundp 'ps-extend-face-list)]
+ "----"
+ ["Syntaxify region" cperl-find-pods-heres-region
+ (cperl-use-region-p)]
+ ["Profile syntaxification" cperl-time-fontification t]
+ ["Debug errors in delayed fontification" cperl-emulate-lazy-lock t]
+ ["Debug unwind for syntactic scan" cperl-toggle-set-debug-unwind t]
+ ["Debug backtrace on syntactic scan (BEWARE!!!)"
+ (cperl-toggle-set-debug-unwind nil t) t]
+ "----"
+ ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
+ ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
+ ("Tags"
;;; ["Create tags for current file" cperl-etags t]
;;; ["Add tags for current file" (cperl-etags t) t]
;;; ["Create tags for Perl files in directory" (cperl-etags nil t) t]
;;; ["Add tags for Perl files in directory" (cperl-etags t t) t]
-;;; ["Create tags for Perl files in (sub)directories"
+;;; ["Create tags for Perl files in (sub)directories"
;;; (cperl-etags nil 'recursive) t]
;;; ["Add tags for Perl files in (sub)directories"
-;;; (cperl-etags t 'recursive) t])
+;;; (cperl-etags t 'recursive) t])
;;;; cperl-write-tags (&optional file erase recurse dir inbuffer)
- ["Create tags for current file" (cperl-write-tags nil t) t]
- ["Add tags for current file" (cperl-write-tags) t]
- ["Create tags for Perl files in directory"
- (cperl-write-tags nil t nil t) t]
- ["Add tags for Perl files in directory"
- (cperl-write-tags nil nil nil t) t]
- ["Create tags for Perl files in (sub)directories"
- (cperl-write-tags nil t t t) t]
- ["Add tags for Perl files in (sub)directories"
- (cperl-write-tags nil nil t t) t])
- ["Recalculate PODs and HEREs" cperl-find-pods-heres t]
- ["Define word at point" imenu-go-find-at-position
- (fboundp 'imenu-go-find-at-position)]
- ["Help on function" cperl-info-on-command t]
- ["Help on function at point" cperl-info-on-current-command t]
- ["Help on symbol at point" cperl-get-help t]
- ["Auto-help on" cperl-lazy-install (fboundp 'run-with-idle-timer)]
- ["Auto-help off" cperl-lazy-unstall
- (fboundp 'run-with-idle-timer)])
- ("Toggle..."
- ["Auto newline" cperl-toggle-auto-newline t]
- ["Electric parens" cperl-toggle-electric t]
- ["Electric keywords" cperl-toggle-abbrev t]
- )
- ("Indent styles..."
- ["GNU" (cperl-set-style "GNU") t]
- ["C++" (cperl-set-style "C++") t]
- ["FSF" (cperl-set-style "FSF") t]
- ["BSD" (cperl-set-style "BSD") t]
- ["Whitesmith" (cperl-set-style "Whitesmith") t])
- ("Micro-docs"
- ["Tips" (describe-variable 'cperl-tips) t]
- ["Problems" (describe-variable 'cperl-problems) t]
- ["Non-problems" (describe-variable 'cperl-non-problems) t]))))
+ ["Create tags for current file" (cperl-write-tags nil t) t]
+ ["Add tags for current file" (cperl-write-tags) t]
+ ["Create tags for Perl files in directory"
+ (cperl-write-tags nil t nil t) t]
+ ["Add tags for Perl files in directory"
+ (cperl-write-tags nil nil nil t) t]
+ ["Create tags for Perl files in (sub)directories"
+ (cperl-write-tags nil t t t) t]
+ ["Add tags for Perl files in (sub)directories"
+ (cperl-write-tags nil nil t t) t]))
+ ("Perl docs"
+ ["Define word at point" imenu-go-find-at-position
+ (fboundp 'imenu-go-find-at-position)]
+ ["Help on function" cperl-info-on-command t]
+ ["Help on function at point" cperl-info-on-current-command t]
+ ["Help on symbol at point" cperl-get-help t]
+ ["Perldoc" cperl-perldoc t]
+ ["Perldoc on word at point" cperl-perldoc-at-point t]
+ ["View manpage of POD in this file" cperl-build-manpage t]
+ ["Auto-help on" cperl-lazy-install
+ (and (fboundp 'run-with-idle-timer)
+ (not cperl-lazy-installed))]
+ ["Auto-help off" cperl-lazy-unstall
+ (and (fboundp 'run-with-idle-timer)
+ cperl-lazy-installed)])
+ ("Toggle..."
+ ["Auto newline" cperl-toggle-auto-newline t]
+ ["Electric parens" cperl-toggle-electric t]
+ ["Electric keywords" cperl-toggle-abbrev t]
+ ["Fix whitespace on indent" cperl-toggle-construct-fix t]
+ ["Auto-help on Perl constructs" cperl-toggle-autohelp t]
+ ["Auto fill" auto-fill-mode t])
+ ("Indent styles..."
+ ["CPerl" (cperl-set-style "CPerl") t]
+ ["PerlStyle" (cperl-set-style "PerlStyle") t]
+ ["GNU" (cperl-set-style "GNU") t]
+ ["C++" (cperl-set-style "C++") t]
+ ["K&R" (cperl-set-style "K&R") t]
+ ["BSD" (cperl-set-style "BSD") t]
+ ["Whitesmith" (cperl-set-style "Whitesmith") t]
+ ["Memorize Current" (cperl-set-style "Current") t]
+ ["Memorized" (cperl-set-style-back) cperl-old-style])
+ ("Micro-docs"
+ ["Tips" (describe-variable 'cperl-tips) t]
+ ["Problems" (describe-variable 'cperl-problems) t]
+ ["Non-problems" (describe-variable 'cperl-non-problems) t]
+ ["Speed" (describe-variable 'cperl-speed) t]
+ ["Praise" (describe-variable 'cperl-praise) t]
+ ["Faces" (describe-variable 'cperl-tips-faces) t]
+ ["CPerl mode" (describe-function 'cperl-mode) t]
+ ["CPerl version"
+ (message "The version of master-file for this CPerl is %s"
+ cperl-version) t]))))
(error nil))
(autoload 'c-macro-expand "cmacexp"
The expansion is entirely correct because it uses the C preprocessor."
t)
+;;; These two must be unwound, otherwise take exponential time
+(defconst cperl-maybe-white-and-comment-rex "[ \t\n]*\\(#[^\n]*\n[ \t\n]*\\)*"
+"Regular expression to match optional whitespace with interpspersed comments.
+Should contain exactly one group.")
+
+;;; This one is tricky to unwind; still very inefficient...
+(defconst cperl-white-and-comment-rex "\\([ \t\n]\\|#[^\n]*\n\\)+"
+"Regular expression to match whitespace with interpspersed comments.
+Should contain exactly one group.")
+
+
+;;; Is incorporated in `cperl-imenu--function-name-regexp-perl'
+;;; `cperl-outline-regexp', `defun-prompt-regexp'.
+;;; Details of groups in this may be used in several functions; see comments
+;;; near mentioned above variable(s)...
+;;; sub($$):lvalue{} sub:lvalue{} Both allowed...
+(defsubst cperl-after-sub-regexp (named attr) ; 9 groups without attr...
+ "Match the text after `sub' in a subroutine declaration.
+If NAMED is nil, allows anonymous subroutines. Matches up to the first \":\"
+of attributes (if present), or end of the name or prototype (whatever is
+the last)."
+ (concat ; Assume n groups before this...
+ "\\(" ; n+1=name-group
+ cperl-white-and-comment-rex ; n+2=pre-name
+ "\\(::[a-zA-Z_0-9:']+\\|[a-zA-Z_'][a-zA-Z_0-9:']*\\)" ; n+3=name
+ "\\)" ; END n+1=name-group
+ (if named "" "?")
+ "\\(" ; n+4=proto-group
+ cperl-maybe-white-and-comment-rex ; n+5=pre-proto
+ "\\(([^()]*)\\)" ; n+6=prototype
+ "\\)?" ; END n+4=proto-group
+ "\\(" ; n+7=attr-group
+ cperl-maybe-white-and-comment-rex ; n+8=pre-attr
+ "\\(" ; n+9=start-attr
+ ":"
+ (if attr (concat
+ "\\("
+ cperl-maybe-white-and-comment-rex ; whitespace-comments
+ "\\(\\sw\\|_\\)+" ; attr-name
+ ;; attr-arg (1 level of internal parens allowed!)
+ "\\((\\(\\\\.\\|[^\\\\()]\\|([^\\\\()]*)\\)*)\\)?"
+ "\\(" ; optional : (XXX allows trailing???)
+ cperl-maybe-white-and-comment-rex ; whitespace-comments
+ ":\\)?"
+ "\\)+")
+ "[^:]")
+ "\\)"
+ "\\)?" ; END n+6=proto-group
+ ))
+
+;;; Details of groups in this are used in `cperl-imenu--create-perl-index'
+;;; and `cperl-outline-level'.
+;;;; Was: 2=sub|package; now 2=package-group, 5=package-name 8=sub-name (+3)
+(defvar cperl-imenu--function-name-regexp-perl
+ (concat
+ "^\\(" ; 1 = all
+ "\\([ \t]*package" ; 2 = package-group
+ "\\(" ; 3 = package-name-group
+ cperl-white-and-comment-rex ; 4 = pre-package-name
+ "\\([a-zA-Z_0-9:']+\\)\\)?\\)" ; 5 = package-name
+ "\\|"
+ "[ \t]*sub"
+ (cperl-after-sub-regexp 'named nil) ; 8=name 11=proto 14=attr-start
+ cperl-maybe-white-and-comment-rex ; 15=pre-block
+ "\\|"
+ "=head\\([1-4]\\)[ \t]+" ; 16=level
+ "\\([^\n]+\\)$" ; 17=text
+ "\\)"))
+
+(defvar cperl-outline-regexp
+ (concat cperl-imenu--function-name-regexp-perl "\\|" "\\`"))
+
(defvar cperl-mode-syntax-table nil
- "Syntax table in use in Cperl-mode buffers.")
+ "Syntax table in use in CPerl mode buffers.")
+
+(defvar cperl-string-syntax-table nil
+ "Syntax table in use in CPerl mode string-like chunks.")
+
+(defsubst cperl-1- (p)
+ (max (point-min) (1- p)))
+
+(defsubst cperl-1+ (p)
+ (min (point-max) (1+ p)))
(if cperl-mode-syntax-table
()
(modify-syntax-entry ?# "<" cperl-mode-syntax-table)
(modify-syntax-entry ?' "\"" cperl-mode-syntax-table)
(modify-syntax-entry ?` "\"" cperl-mode-syntax-table)
- (modify-syntax-entry ?_ "w" cperl-mode-syntax-table)
+ (if cperl-under-as-char
+ (modify-syntax-entry ?_ "w" cperl-mode-syntax-table))
(modify-syntax-entry ?: "_" cperl-mode-syntax-table)
- (modify-syntax-entry ?| "." cperl-mode-syntax-table))
+ (modify-syntax-entry ?| "." cperl-mode-syntax-table)
+ (setq cperl-string-syntax-table (copy-syntax-table cperl-mode-syntax-table))
+ (modify-syntax-entry ?$ "." cperl-string-syntax-table)
+ (modify-syntax-entry ?\{ "." cperl-string-syntax-table)
+ (modify-syntax-entry ?\} "." cperl-string-syntax-table)
+ (modify-syntax-entry ?# "." cperl-string-syntax-table)) ; (?# comment )
\f
-;; Make customization possible "in reverse"
-;;(defun cperl-set (symbol to)
-;; (or (eq (symbol-value symbol) 'null) (set symbol to)))
-(defsubst cperl-val (symbol &optional default hairy)
- (cond
- ((eq (symbol-value symbol) 'null) default)
- (cperl-hairy (or hairy t))
- (t (symbol-value symbol))))
-\f
;; provide an alias for working with emacs 19. the perl-mode that comes
;; with it is really bad, and this lets us seamlessly replace it.
+;;;###autoload
(fset 'perl-mode 'cperl-mode)
+(defvar cperl-faces-init nil)
+;; Fix for msb.el
+(defvar cperl-msb-fixed nil)
+(defvar font-lock-syntactic-keywords)
+(defvar perl-font-lock-keywords)
+(defvar perl-font-lock-keywords-1)
+(defvar perl-font-lock-keywords-2)
+(defvar outline-level)
+(if (fboundp 'defvaralias)
+ (let ((f 'defvaralias)) ; Some functions deduce stuff from the mode name...
+ (funcall f 'cperl-font-lock-keywords 'perl-font-lock-keywords)
+ (funcall f 'cperl-font-lock-keywords-1 'perl-font-lock-keywords-1)
+ (funcall f 'cperl-font-lock-keywords-2 'perl-font-lock-keywords-2)))
+
+(defvar cperl-use-major-mode 'perl-mode)
+(defvar cperl-font-lock-multiline-start nil)
+(defvar cperl-font-lock-multiline nil)
+(defvar cperl-compilation-error-regexp-alist nil)
+(defvar cperl-font-locking nil)
+
+;;;###autoload
(defun cperl-mode ()
"Major mode for editing Perl code.
Expression and list commands understand all C brackets.
Delete converts tabs to spaces as it moves back.
Various characters in Perl almost always come in pairs: {}, (), [],
-sometimes <>. When the user types the first, she gets the second as
+sometimes <>. When the user types the first, she gets the second as
well, with optional special formatting done on {}. (Disabled by
default.) You can always quote (with \\[quoted-insert]) the left
-\"paren\" to avoid the expansion. The processing of < is special,
-since most the time you mean \"less\". Cperl mode tries to guess
+\"paren\" to avoid the expansion. The processing of < is special,
+since most the time you mean \"less\". CPerl mode tries to guess
whether you want to type pair <>, and inserts is if it
-appropriate. You can set `cperl-electric-parens-string' to the string that
+appropriate. You can set `cperl-electric-parens-string' to the string that
contains the parenths from the above list you want to be electrical.
Electricity of parenths is controlled by `cperl-electric-parens'.
You may also set `cperl-electric-parens-mark' to have electric parens
look for active mark and \"embrace\" a region if possible.'
CPerl mode provides expansion of the Perl control constructs:
- if, else, elsif, unless, while, until, for, and foreach.
-=========(Disabled by default, see `cperl-electric-keywords'.)
-The user types the keyword immediately followed by a space, which causes
-the construct to be expanded, and the user is positioned where she is most
-likely to want to be.
-eg. when the user types a space following \"if\" the following appears in
-the buffer:
- if () { or if ()
- } {
- }
-and the cursor is between the parentheses. The user can then type some
-boolean expression within the parens. Having done that, typing
-\\[cperl-linefeed] places you, appropriately indented on a new line
-between the braces. If CPerl decides that you want to insert
-\"English\" style construct like
+
+ if, else, elsif, unless, while, until, continue, do,
+ for, foreach, formy and foreachmy.
+
+and POD directives (Disabled by default, see `cperl-electric-keywords'.)
+
+The user types the keyword immediately followed by a space, which
+causes the construct to be expanded, and the point is positioned where
+she is most likely to want to be. eg. when the user types a space
+following \"if\" the following appears in the buffer: if () { or if ()
+} { } and the cursor is between the parentheses. The user can then
+type some boolean expression within the parens. Having done that,
+typing \\[cperl-linefeed] places you - appropriately indented - on a
+new line between the braces (if you typed \\[cperl-linefeed] in a POD
+directive line, then appropriate number of new lines is inserted).
+
+If CPerl decides that you want to insert \"English\" style construct like
+
bite if angry;
-it will not do any expansion. See also help on variable
-`cperl-extra-newline-before-brace'.
+
+it will not do any expansion. See also help on variable
+`cperl-extra-newline-before-brace'. (Note that one can switch the
+help message on expansion by setting `cperl-message-electric-keyword'
+to nil.)
\\[cperl-linefeed] is a convenience replacement for typing carriage
-return. It places you in the next line with proper indentation, or if
+return. It places you in the next line with proper indentation, or if
you type it inside the inline block of control construct, like
+
foreach (@lines) {print; print}
+
and you are on a boundary of a statement inside braces, it will
transform the construct into a multiline and will place you into an
-appropriately indented blank line. If you need a usual
-`newline-and-indent' behaviour, it is on \\[newline-and-indent],
+appropriately indented blank line. If you need a usual
+`newline-and-indent' behaviour, it is on \\[newline-and-indent],
see documentation on `cperl-electric-linefeed'.
+Use \\[cperl-invert-if-unless] to change a construction of the form
+
+ if (A) { B }
+
+into
+
+ B if A;
+
\\{cperl-mode-map}
-Setting the variable `cperl-font-lock' to t switches on
-font-lock-mode, `cperl-electric-lbrace-space' to t switches on
-electric space between $ and {, `cperl-electric-parens-string' is the
-string that contains parentheses that should be electric in CPerl (see
-also `cperl-electric-parens-mark' and `cperl-electric-parens'),
+Setting the variable `cperl-font-lock' to t switches on font-lock-mode
+\(even with older Emacsen), `cperl-electric-lbrace-space' to t switches
+on electric space between $ and {, `cperl-electric-parens-string' is
+the string that contains parentheses that should be electric in CPerl
+\(see also `cperl-electric-parens-mark' and `cperl-electric-parens'),
setting `cperl-electric-keywords' enables electric expansion of
-control structures in CPerl. `cperl-electric-linefeed' governs which
-one of two linefeed behavior is preferable. You can enable all these
+control structures in CPerl. `cperl-electric-linefeed' governs which
+one of two linefeed behavior is preferable. You can enable all these
options simultaneously (recommended mode of use) by setting
-`cperl-hairy' to t. In this case you can switch separate options off
-by setting them to `null'. Note that one may undo the extra whitespace
-inserted by semis and braces in `auto-newline'-mode by consequent
-\\[cperl-electric-backspace].
+`cperl-hairy' to t. In this case you can switch separate options off
+by setting them to `null'. Note that one may undo the extra
+whitespace inserted by semis and braces in `auto-newline'-mode by
+consequent \\[cperl-electric-backspace].
If your site has perl5 documentation in info format, you can use commands
\\[cperl-info-on-current-command] and \\[cperl-info-on-command] to access it.
These keys run commands `cperl-info-on-current-command' and
`cperl-info-on-command', which one is which is controlled by variable
-`cperl-info-on-command-no-prompt' (in turn affected by `cperl-hairy').
+`cperl-info-on-command-no-prompt' and `cperl-clobber-lisp-bindings'
+\(in turn affected by `cperl-hairy').
Even if you have no info-format documentation, short one-liner-style
-help is available on \\[cperl-get-help].
+help is available on \\[cperl-get-help], and one can run perldoc or
+man via menu.
-It is possible to show this help automatically after some idle
-time. This is regulated by variable `cperl-lazy-help-time'. Default
-with `cperl-hairy' is 5 secs idle time if the value of this variable
-is nil. It is also possible to switch this on/off from the
-menu. Requires `run-with-idle-timer'.
+It is possible to show this help automatically after some idle time.
+This is regulated by variable `cperl-lazy-help-time'. Default with
+`cperl-hairy' (if the value of `cperl-lazy-help-time' is nil) is 5
+secs idle time . It is also possible to switch this on/off from the
+menu, or via \\[cperl-toggle-autohelp]. Requires `run-with-idle-timer'.
+
+Use \\[cperl-lineup] to vertically lineup some construction - put the
+beginning of the region at the start of construction, and make region
+span the needed amount of lines.
Variables `cperl-pod-here-scan', `cperl-pod-here-fontify',
-`cperl-pod-face', `cperl-pod-head-face' control processing of pod and
-here-docs sections. In a future version results of scan may be used
-for indentation too, currently they are used for highlighting only.
+`cperl-pod-face', `cperl-pod-head-face' control processing of POD and
+here-docs sections. With capable Emaxen results of scan are used
+for indentation too, otherwise they are used for highlighting only.
Variables controlling indentation style:
`cperl-tab-always-indent'
Non-nil means TAB in CPerl mode should always reindent the current line,
regardless of where in the line point is when the TAB command is used.
+ `cperl-indent-left-aligned-comments'
+ Non-nil means that the comment starting in leftmost column should indent.
`cperl-auto-newline'
Non-nil means automatically newline before and after braces,
- and after colons and semicolons, inserted in Perl code. The following
+ and after colons and semicolons, inserted in Perl code. The following
\\[cperl-electric-backspace] will remove the inserted whitespace.
- Insertion after colons requires both this variable and
- `cperl-auto-newline-after-colon' set.
+ Insertion after colons requires both this variable and
+ `cperl-auto-newline-after-colon' set.
`cperl-auto-newline-after-colon'
Non-nil means automatically newline even after colons.
Subject to `cperl-auto-newline' setting.
`cperl-min-label-indent'
Minimal indentation for line that is a label.
-Settings for K&R and BSD indentation styles are
- `cperl-indent-level' 5 8
- `cperl-continued-statement-offset' 5 8
- `cperl-brace-offset' -5 -8
- `cperl-label-offset' -5 -8
-
-If `cperl-indent-level' is 0, the statement after opening brace in column 0 is indented on `cperl-brace-offset'+`cperl-continued-statement-offset'.
+Settings for classic indent-styles: K&R BSD=C++ GNU PerlStyle=Whitesmith
+ `cperl-indent-level' 5 4 2 4
+ `cperl-brace-offset' 0 0 0 0
+ `cperl-continued-brace-offset' -5 -4 0 0
+ `cperl-label-offset' -5 -4 -2 -4
+ `cperl-continued-statement-offset' 5 4 2 4
+
+CPerl knows several indentation styles, and may bulk set the
+corresponding variables. Use \\[cperl-set-style] to do this. Use
+\\[cperl-set-style-back] to restore the memorized preexisting values
+\(both available from menu). See examples in `cperl-style-examples'.
+
+Part of the indentation style is how different parts of if/elsif/else
+statements are broken into lines; in CPerl, this is reflected on how
+templates for these constructs are created (controlled by
+`cperl-extra-newline-before-brace'), and how reflow-logic should treat \"continuation\" blocks of else/elsif/continue, controlled by the same variable,
+and by `cperl-extra-newline-before-brace-multiline',
+`cperl-merge-trailing-else', `cperl-indent-region-fix-constructs'.
+
+If `cperl-indent-level' is 0, the statement after opening brace in
+column 0 is indented on
+`cperl-brace-offset'+`cperl-continued-statement-offset'.
Turning on CPerl mode calls the hooks in the variable `cperl-mode-hook'
-with no args."
+with no args.
+
+DO NOT FORGET to read micro-docs (available from `Perl' menu)
+or as help on variables `cperl-tips', `cperl-problems',
+`cperl-non-problems', `cperl-praise', `cperl-speed'."
(interactive)
(kill-all-local-variables)
- ;;(if cperl-hairy
- ;; (progn
- ;; (cperl-set 'cperl-font-lock cperl-hairy)
- ;; (cperl-set 'cperl-electric-lbrace-space cperl-hairy)
- ;; (cperl-set 'cperl-electric-parens "{[(<")
- ;; (cperl-set 'cperl-electric-keywords cperl-hairy)
- ;; (cperl-set 'cperl-electric-linefeed cperl-hairy)))
(use-local-map cperl-mode-map)
(if (cperl-val 'cperl-electric-linefeed)
(progn
(local-set-key "\C-J" 'cperl-linefeed)
(local-set-key "\C-C\C-J" 'newline-and-indent)))
- (if (cperl-val 'cperl-info-on-command-no-prompt)
+ (if (and
+ (cperl-val 'cperl-clobber-lisp-bindings)
+ (cperl-val 'cperl-info-on-command-no-prompt))
(progn
;; don't clobber the backspace binding:
(cperl-define-key "\C-hf" 'cperl-info-on-current-command [(control h) f])
(cperl-define-key "\C-c\C-hf" 'cperl-info-on-command
[(control c) (control h) f])))
- (setq major-mode 'perl-mode)
+ (setq major-mode cperl-use-major-mode)
(setq mode-name "CPerl")
(if (not cperl-mode-abbrev-table)
(let ((prev-a-c abbrevs-changed))
("until" "until" cperl-electric-keyword 0)
("unless" "unless" cperl-electric-keyword 0)
("else" "else" cperl-electric-else 0)
+ ("continue" "continue" cperl-electric-else 0)
("for" "for" cperl-electric-keyword 0)
("foreach" "foreach" cperl-electric-keyword 0)
- ("do" "do" cperl-electric-keyword 0)))
+ ("formy" "formy" cperl-electric-keyword 0)
+ ("foreachmy" "foreachmy" cperl-electric-keyword 0)
+ ("do" "do" cperl-electric-keyword 0)
+ ("=pod" "=pod" cperl-electric-pod 0)
+ ("=over" "=over" cperl-electric-pod 0)
+ ("=head1" "=head1" cperl-electric-pod 0)
+ ("=head2" "=head2" cperl-electric-pod 0)
+ ("pod" "pod" cperl-electric-pod 0)
+ ("over" "over" cperl-electric-pod 0)
+ ("head1" "head1" cperl-electric-pod 0)
+ ("head2" "head2" cperl-electric-pod 0)))
(setq abbrevs-changed prev-a-c)))
(setq local-abbrev-table cperl-mode-abbrev-table)
- (abbrev-mode (if (cperl-val 'cperl-electric-keywords) 1 0))
+ (if (cperl-val 'cperl-electric-keywords)
+ (abbrev-mode 1))
(set-syntax-table cperl-mode-syntax-table)
+ ;; Until Emacs is multi-threaded, we do not actually need it local:
+ (make-local-variable 'cperl-font-lock-multiline-start)
+ (make-local-variable 'cperl-font-locking)
+ (make-local-variable 'outline-regexp)
+ ;; (setq outline-regexp imenu-example--function-name-regexp-perl)
+ (setq outline-regexp cperl-outline-regexp)
+ (make-local-variable 'outline-level)
+ (setq outline-level 'cperl-outline-level)
(make-local-variable 'paragraph-start)
(setq paragraph-start (concat "^$\\|" page-delimiter))
(make-local-variable 'paragraph-separate)
(setq paragraph-separate paragraph-start)
(make-local-variable 'paragraph-ignore-fill-prefix)
(setq paragraph-ignore-fill-prefix t)
+ (if cperl-xemacs-p
+ (progn
+ (make-local-variable 'paren-backwards-message)
+ (set 'paren-backwards-message t)))
(make-local-variable 'indent-line-function)
(setq indent-line-function 'cperl-indent-line)
(make-local-variable 'require-final-newline)
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "#+ *")
(make-local-variable 'defun-prompt-regexp)
- (setq defun-prompt-regexp "^[ \t]*sub[ \t]+\\([^ \t\n{;]+\\)[ \t]*")
+;;; "[ \t]*sub"
+;;; (cperl-after-sub-regexp 'named nil) ; 8=name 11=proto 14=attr-start
+;;; cperl-maybe-white-and-comment-rex ; 15=pre-block
+ (setq defun-prompt-regexp
+ (concat "[ \t]*\\(sub"
+ (cperl-after-sub-regexp 'named 'attr-groups)
+ "\\|" ; per toke.c
+ "\\(BEGIN\\|CHECK\\|INIT\\|END\\|AUTOLOAD\\|DESTROY\\)"
+ "\\)"
+ cperl-maybe-white-and-comment-rex))
(make-local-variable 'comment-indent-function)
(setq comment-indent-function 'cperl-comment-indent)
+ (and (boundp 'fill-paragraph-function)
+ (progn
+ (make-local-variable 'fill-paragraph-function)
+ (set 'fill-paragraph-function 'cperl-fill-paragraph)))
(make-local-variable 'parse-sexp-ignore-comments)
(setq parse-sexp-ignore-comments t)
(make-local-variable 'indent-region-function)
;;(setq auto-fill-function 'cperl-do-auto-fill) ; Need to switch on and off!
(make-local-variable 'imenu-create-index-function)
(setq imenu-create-index-function
- (function imenu-example--create-perl-index))
+ (function cperl-imenu--create-perl-index))
(make-local-variable 'imenu-sort-function)
(setq imenu-sort-function nil)
+ (make-local-variable 'vc-rcs-header)
+ (set 'vc-rcs-header cperl-vc-rcs-header)
+ (make-local-variable 'vc-sccs-header)
+ (set 'vc-sccs-header cperl-vc-sccs-header)
+ ;; This one is obsolete...
(make-local-variable 'vc-header-alist)
- (setq vc-header-alist cperl-vc-header-alist)
+ (set 'vc-header-alist (or cperl-vc-header-alist ; Avoid warning
+ (` ((SCCS (, (car cperl-vc-sccs-header)))
+ (RCS (, (car cperl-vc-rcs-header)))))))
+ (cond ((boundp 'compilation-error-regexp-alist-alist);; xemacs 20.x
+ (make-local-variable 'compilation-error-regexp-alist-alist)
+ (set 'compilation-error-regexp-alist-alist
+ (cons (cons 'cperl cperl-compilation-error-regexp-alist)
+ (symbol-value 'compilation-error-regexp-alist-alist)))
+ (let ((f 'compilation-build-compilation-error-regexp-alist))
+ (funcall f)))
+ ((boundp 'compilation-error-regexp-alist);; xmeacs 19.x
+ (make-local-variable 'compilation-error-regexp-alist)
+ (set 'compilation-error-regexp-alist
+ (cons cperl-compilation-error-regexp-alist
+ (symbol-value 'compilation-error-regexp-alist)))))
(make-local-variable 'font-lock-defaults)
(setq font-lock-defaults
- (if (string< emacs-version "19.30")
- '(perl-font-lock-keywords-2)
+ (cond
+ ((string< emacs-version "19.30")
+ '(perl-font-lock-keywords-2 nil nil ((?_ . "w"))))
+ ((string< emacs-version "19.33") ; Which one to use?
'((perl-font-lock-keywords
perl-font-lock-keywords-1
- perl-font-lock-keywords-2))))
- (or (fboundp 'cperl-old-auto-fill-mode)
+ perl-font-lock-keywords-2) nil nil ((?_ . "w"))))
+ (t
+ '((cperl-load-font-lock-keywords
+ cperl-load-font-lock-keywords-1
+ cperl-load-font-lock-keywords-2) nil nil ((?_ . "w"))))))
+ (make-local-variable 'cperl-syntax-state)
+ (setq cperl-syntax-state nil) ; reset syntaxification cache
+ (if cperl-use-syntax-table-text-property
(progn
- (fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
- (defun auto-fill-mode (&optional arg)
- (interactive "P")
- (cperl-old-auto-fill-mode arg)
- (and auto-fill-function (eq major-mode 'perl-mode)
- (setq auto-fill-function 'cperl-do-auto-fill)))))
+ (make-local-variable 'parse-sexp-lookup-properties)
+ ;; Do not introduce variable if not needed, we check it!
+ (set 'parse-sexp-lookup-properties t)
+ ;; Fix broken font-lock:
+ (or (boundp 'font-lock-unfontify-region-function)
+ (set 'font-lock-unfontify-region-function
+ 'font-lock-default-unfontify-region))
+ (unless cperl-xemacs-p ; Our: just a plug for wrong font-lock
+ (make-local-variable 'font-lock-unfontify-region-function)
+ (set 'font-lock-unfontify-region-function ; not present with old Emacs
+ 'cperl-font-lock-unfontify-region-function))
+ (make-local-variable 'cperl-syntax-done-to)
+ (setq cperl-syntax-done-to nil) ; reset syntaxification cache
+ ;; Another bug: unless font-lock-syntactic-keywords, font-lock
+ ;; ignores syntax-table text-property. (t) is a hack
+ ;; to make font-lock think that font-lock-syntactic-keywords
+ ;; are defined
+ (make-local-variable 'font-lock-syntactic-keywords)
+ (setq font-lock-syntactic-keywords
+ (if cperl-syntaxify-by-font-lock
+ '(t (cperl-fontify-syntaxically))
+ '(t)))))
+ (if (boundp 'font-lock-multiline) ; Newer font-lock; use its facilities
+ (progn
+ (setq cperl-font-lock-multiline t) ; Not localized...
+ (set (make-local-variable 'font-lock-multiline) t))
+ (make-local-variable 'font-lock-fontify-region-function)
+ (set 'font-lock-fontify-region-function ; not present with old Emacs
+ 'cperl-font-lock-fontify-region-function))
+ (make-local-variable 'font-lock-fontify-region-function)
+ (set 'font-lock-fontify-region-function ; not present with old Emacs
+ 'cperl-font-lock-fontify-region-function)
+ (make-local-variable 'cperl-old-style)
+ (if (boundp 'normal-auto-fill-function) ; 19.33 and later
+ (set (make-local-variable 'normal-auto-fill-function)
+ 'cperl-do-auto-fill) ; RMS has it as #'cperl-do-auto-fill ???
+ (or (fboundp 'cperl-old-auto-fill-mode)
+ (progn
+ (fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
+ (defun auto-fill-mode (&optional arg)
+ (interactive "P")
+ (eval '(cperl-old-auto-fill-mode arg)) ; Avoid a warning
+ (and auto-fill-function (memq major-mode '(perl-mode cperl-mode))
+ (setq auto-fill-function 'cperl-do-auto-fill))))))
(if (cperl-enable-font-lock)
- (if (cperl-val 'cperl-font-lock)
+ (if (cperl-val 'cperl-font-lock)
(progn (or cperl-faces-init (cperl-init-faces))
(font-lock-mode 1))))
+ (set (make-local-variable 'facemenu-add-face-function)
+ 'cperl-facemenu-add-face-function) ; XXXX What this guy is for???
(and (boundp 'msb-menu-cond)
(not cperl-msb-fixed)
(cperl-msb-fix))
(if (featurep 'easymenu)
- (easy-menu-add cperl-menu)) ; A NOP under FSF Emacs.
+ (easy-menu-add cperl-menu)) ; A NOP in RMS Emacs.
(run-hooks 'cperl-mode-hook)
+ (if cperl-hook-after-change
+ (progn
+ (make-local-hook 'after-change-functions)
+ (add-hook 'after-change-functions 'cperl-after-change-function nil t)))
;; After hooks since fontification will break this
- (if cperl-pod-here-scan (cperl-find-pods-heres)))
+ (if cperl-pod-here-scan
+ (or cperl-syntaxify-by-font-lock
+ (progn (or cperl-faces-init (cperl-init-faces-weak))
+ (cperl-find-pods-heres)))))
\f
;; Fix for perldb - make default reasonable
(defun cperl-db ()
(if (consp gud-perldb-history)
(car gud-perldb-history)
(concat "perl " ;;(file-name-nondirectory
- ;; I have problems
- ;; in OS/2
- ;; otherwise
- (buffer-file-name)))
+ ;; I have problems
+ ;; in OS/2
+ ;; otherwise
+ (buffer-file-name)))
nil nil
'(gud-perldb-history . 1))))
\f
-;; Fix for msb.el
-(defvar cperl-msb-fixed nil)
-
(defun cperl-msb-fix ()
;; Adds perl files to msb menu, supposes that msb is already loaded
(setq cperl-msb-fixed t)
(handle (1- (nth 1 last))))
(setcdr precdr (list
(list
- '(eq major-mode 'perl-mode)
+ '(memq major-mode '(cperl-mode perl-mode))
handle
"Perl Files (%d)")
last))))
\f
;; This is used by indent-for-comment
;; to decide how much to indent a comment in CPerl code
-;; based on its context. Do fallback if comment is found wrong.
+;; based on its context. Do fallback if comment is found wrong.
(defvar cperl-wrong-comment)
-
-(defun cperl-comment-indent ()
- (let ((p (point)) (c (current-column)) was)
- (if (looking-at "^#") 0 ; Existing comment at bol stays there.
+(defvar cperl-st-cfence '(14)) ; Comment-fence
+(defvar cperl-st-sfence '(15)) ; String-fence
+(defvar cperl-st-punct '(1))
+(defvar cperl-st-word '(2))
+(defvar cperl-st-bra '(4 . ?\>))
+(defvar cperl-st-ket '(5 . ?\<))
+
+
+(defun cperl-comment-indent () ; called at point at supposed comment
+ (let ((p (point)) (c (current-column)) was phony)
+ (if (and (not cperl-indent-comment-at-column-0)
+ (looking-at "^#"))
+ 0 ; Existing comment at bol stays there.
;; Wrong comment found
(save-excursion
- (setq was (cperl-to-comment-or-eol))
- (if (= (point) p)
+ (setq was (cperl-to-comment-or-eol)
+ phony (eq (get-text-property (point) 'syntax-table)
+ cperl-st-cfence))
+ (if phony
+ (progn ; Too naive???
+ (re-search-forward "#\\|$") ; Hmm, what about embedded #?
+ (if (eq (preceding-char) ?\#)
+ (forward-char -1))
+ (setq was nil)))
+ (if (= (point) p) ; Our caller found a correct place
(progn
(skip-chars-backward " \t")
- (max (1+ (current-column)) ; Else indent at comment column
- comment-column))
+ (setq was (current-column))
+ (if (eq was 0)
+ comment-column
+ (max (1+ was) ; Else indent at comment column
+ comment-column)))
+ ;; No, the caller found a random place; we need to edit ourselves
(if was nil
(insert comment-start)
(backward-char (length comment-start)))
(setq cperl-wrong-comment t)
- (indent-to comment-column 1) ; Indent minimum 1
- c))))) ; except leave at least one space.
+ (cperl-make-indent comment-column 1) ; Indent min 1
+ c)))))
;;;(defun cperl-comment-indent-fallback ()
;;; "Is called if the standard comment-search procedure fails.
;;; (let ((c (current-column)) target cnt prevc)
;;; (if (= c comment-column) nil
;;; (setq cnt (skip-chars-backward "[ \t]"))
-;;; (setq target (max (1+ (setq prevc
+;;; (setq target (max (1+ (setq prevc
;;; (current-column))) ; Else indent at comment column
;;; comment-column))
;;; (if (= c comment-column) nil
(interactive)
(let (cperl-wrong-comment)
(indent-for-comment)
- (if cperl-wrong-comment
+ (if cperl-wrong-comment ; set by `cperl-comment-indent'
(progn (cperl-to-comment-or-eol)
(forward-char (length comment-start))))))
(defun cperl-electric-brace (arg &optional only-before)
"Insert character and correct line's indentation.
If ONLY-BEFORE and `cperl-auto-newline', will insert newline before the
-place (even in empty line), but not after. If after \")\" and the inserted
-char is \"{\", insert extra newline before only if
+place (even in empty line), but not after. If after \")\" and the inserted
+char is \"{\", insert extra newline before only if
`cperl-extra-newline-before-brace'."
(interactive "P")
(let (insertpos
(other-end (if (and cperl-electric-parens-mark
- (cperl-mark-active)
+ (cperl-mark-active)
(< (mark) (point)))
- (mark)
+ (mark)
nil)))
(if (and other-end
(not cperl-brace-recursing)
(setq last-command-char ?\{)
(cperl-electric-lbrace arg insertpos))
(forward-char 1))
- (if (and (not arg) ; No args, end (of empty line or auto)
- (eolp)
- (or (and (null only-before)
- (save-excursion
- (skip-chars-backward " \t")
- (bolp)))
- (and (eq last-command-char ?\{) ; Do not insert newline
- ;; if after ")" and `cperl-extra-newline-before-brace'
- ;; is nil, do not insert extra newline.
- (not cperl-extra-newline-before-brace)
- (save-excursion
- (skip-chars-backward " \t")
- (eq (preceding-char) ?\))))
- (if cperl-auto-newline
- (progn (cperl-indent-line) (newline) t) nil)))
- (progn
- (if cperl-auto-newline
- (setq insertpos (point)))
- (insert last-command-char)
- (cperl-indent-line)
- (if (and cperl-auto-newline (null only-before))
- (progn
- (newline)
- (cperl-indent-line)))
+ ;; Check whether we close something "usual" with `}'
+ (if (and (eq last-command-char ?\})
+ (not
+ (condition-case nil
+ (save-excursion
+ (up-list (- (prefix-numeric-value arg)))
+ ;;(cperl-after-block-p (point-min))
+ (or (cperl-after-expr-p nil "{;)")
+ ;; after sub, else, continue
+ (cperl-after-block-p nil 'pre)))
+ (error nil))))
+ ;; Just insert the guy
+ (self-insert-command (prefix-numeric-value arg))
+ (if (and (not arg) ; No args, end (of empty line or auto)
+ (eolp)
+ (or (and (null only-before)
+ (save-excursion
+ (skip-chars-backward " \t")
+ (bolp)))
+ (and (eq last-command-char ?\{) ; Do not insert newline
+ ;; if after ")" and `cperl-extra-newline-before-brace'
+ ;; is nil, do not insert extra newline.
+ (not cperl-extra-newline-before-brace)
+ (save-excursion
+ (skip-chars-backward " \t")
+ (eq (preceding-char) ?\))))
+ (if cperl-auto-newline
+ (progn (cperl-indent-line) (newline) t) nil)))
+ (progn
+ (self-insert-command (prefix-numeric-value arg))
+ (cperl-indent-line)
+ (if cperl-auto-newline
+ (setq insertpos (1- (point))))
+ (if (and cperl-auto-newline (null only-before))
+ (progn
+ (newline)
+ (cperl-indent-line)))
+ (save-excursion
+ (if insertpos (progn (goto-char insertpos)
+ (search-forward (make-string
+ 1 last-command-char))
+ (setq insertpos (1- (point)))))
+ (delete-char -1))))
+ (if insertpos
(save-excursion
- (if insertpos (progn (goto-char insertpos)
- (search-forward (make-string
- 1 last-command-char))
- (setq insertpos (1- (point)))))
- (delete-char -1))))
- (if insertpos
- (save-excursion
- (goto-char insertpos)
- (self-insert-command (prefix-numeric-value arg)))
- (self-insert-command (prefix-numeric-value arg))))))
+ (goto-char insertpos)
+ (self-insert-command (prefix-numeric-value arg)))
+ (self-insert-command (prefix-numeric-value arg)))))))
(defun cperl-electric-lbrace (arg &optional end)
"Insert character, correct line's indentation, correct quoting by space."
(interactive "P")
- (let (pos after
- (cperl-brace-recursing t)
- (cperl-auto-newline cperl-auto-newline)
- (other-end (or end
- (if (and cperl-electric-parens-mark
- (cperl-mark-active)
- (> (mark) (point)))
- (save-excursion
- (goto-char (mark))
- (point-marker))
- nil))))
+ (let ((cperl-brace-recursing t)
+ (cperl-auto-newline cperl-auto-newline)
+ (other-end (or end
+ (if (and cperl-electric-parens-mark
+ (cperl-mark-active)
+ (> (mark) (point)))
+ (save-excursion
+ (goto-char (mark))
+ (point-marker))
+ nil)))
+ pos after)
(and (cperl-val 'cperl-electric-lbrace-space)
(eq (preceding-char) ?$)
(save-excursion
(skip-chars-backward "$")
(looking-at "\\(\\$\\$\\)*\\$\\([^\\$]\\|$\\)"))
- (insert ? ))
- (if (cperl-after-expr-p nil "{};)") nil (setq cperl-auto-newline nil))
+ (insert ?\ ))
+ ;; Check whether we are in comment
+ (if (and
+ (save-excursion
+ (beginning-of-line)
+ (not (looking-at "[ \t]*#")))
+ (cperl-after-expr-p nil "{;)"))
+ nil
+ (setq cperl-auto-newline nil))
(cperl-electric-brace arg)
(and (cperl-val 'cperl-electric-parens)
(eq last-command-char ?{)
- (memq last-command-char
+ (memq last-command-char
(append cperl-electric-parens-string nil))
(or (if other-end (goto-char (marker-position other-end)))
t)
(goto-char pos)))))
(defun cperl-electric-paren (arg)
- "Insert a matching pair of parentheses."
+ "Insert an opening parenthesis or a matching pair of parentheses.
+See `cperl-electric-parens'."
(interactive "P")
(let ((beg (save-excursion (beginning-of-line) (point)))
(other-end (if (and cperl-electric-parens-mark
- (cperl-mark-active)
+ (cperl-mark-active)
(> (mark) (point)))
- (save-excursion
- (goto-char (mark))
- (point-marker))
+ (save-excursion
+ (goto-char (mark))
+ (point-marker))
nil)))
(if (and (cperl-val 'cperl-electric-parens)
(memq last-command-char
(>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
;;(not (save-excursion (search-backward "#" beg t)))
(if (eq last-command-char ?<)
- (cperl-after-expr-p nil "{};(,:=")
+ (progn
+ (and abbrev-mode ; later it is too late, may be after `for'
+ (expand-abbrev))
+ (cperl-after-expr-p nil "{;(,:="))
1))
(progn
- (insert last-command-char)
+ (self-insert-command (prefix-numeric-value arg))
(if other-end (goto-char (marker-position other-end)))
- (insert (cdr (assoc last-command-char '((?{ .?})
- (?[ . ?])
- (?( . ?))
- (?< . ?>)))))
- (forward-char -1))
- (insert last-command-char)
- )))
+ (insert (make-string
+ (prefix-numeric-value arg)
+ (cdr (assoc last-command-char '((?{ .?})
+ (?[ . ?])
+ (?( . ?))
+ (?< . ?>))))))
+ (forward-char (- (prefix-numeric-value arg))))
+ (self-insert-command (prefix-numeric-value arg)))))
(defun cperl-electric-rparen (arg)
"Insert a matching pair of parentheses if marking is active.
-If not, or if we are not at the end of marking range, would self-insert."
+If not, or if we are not at the end of marking range, would self-insert.
+Affected by `cperl-electric-parens'."
(interactive "P")
(let ((beg (save-excursion (beginning-of-line) (point)))
(other-end (if (and cperl-electric-parens-mark
- (cperl-mark-active)
+ (cperl-val 'cperl-electric-parens)
+ (memq last-command-char
+ (append cperl-electric-parens-string nil))
+ (cperl-mark-active)
(< (mark) (point)))
- (mark)
+ (mark)
nil))
p)
(if (and other-end
;;(not (save-excursion (search-backward "#" beg t)))
)
(progn
- (insert last-command-char)
+ (self-insert-command (prefix-numeric-value arg))
(setq p (point))
(if other-end (goto-char other-end))
- (insert (cdr (assoc last-command-char '((?\} . ?\{)
- (?\] . ?\[)
- (?\) . ?\()
- (?\> . ?\<)))))
+ (insert (make-string
+ (prefix-numeric-value arg)
+ (cdr (assoc last-command-char '((?\} . ?\{)
+ (?\] . ?\[)
+ (?\) . ?\()
+ (?\> . ?\<))))))
(goto-char (1+ p)))
- (call-interactively 'self-insert-command)
- )))
+ (self-insert-command (prefix-numeric-value arg)))))
(defun cperl-electric-keyword ()
- "Insert a construction appropriate after a keyword."
- (let ((beg (save-excursion (beginning-of-line) (point)))
- (dollar (eq last-command-char ?$)))
+ "Insert a construction appropriate after a keyword.
+Help message may be switched off by setting `cperl-message-electric-keyword'
+to nil."
+ (let ((beg (save-excursion (beginning-of-line) (point)))
+ (dollar (and (eq last-command-char ?$)
+ (eq this-command 'self-insert-command)))
+ (delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
+ (memq this-command '(self-insert-command newline))))
+ my do)
(and (save-excursion
- (backward-sexp 1)
- (cperl-after-expr-p nil "{};:"))
- (save-excursion
- (not
+ (condition-case nil
+ (progn
+ (backward-sexp 1)
+ (setq do (looking-at "do\\>")))
+ (error nil))
+ (cperl-after-expr-p nil "{;:"))
+ (save-excursion
+ (not
(re-search-backward
- "[#\"'`]\\|\\<q\\(\\|[wqx]\\)\\>"
+ "[#\"'`]\\|\\<q\\(\\|[wqxr]\\)\\>"
beg t)))
(save-excursion (or (not (re-search-backward "^=" nil t))
- (looking-at "=cut")))
+ (or
+ (looking-at "=cut")
+ (and cperl-use-syntax-table-text-property
+ (not (eq (get-text-property (point)
+ 'syntax-type)
+ 'pod))))))
+ (save-excursion (forward-sexp -1)
+ (not (memq (following-char) (append "$@%&*" nil))))
(progn
+ (and (eq (preceding-char) ?y)
+ (progn ; "foreachmy"
+ (forward-char -2)
+ (insert " ")
+ (forward-char 2)
+ (setq my t dollar t
+ delete
+ (memq this-command '(self-insert-command newline)))))
(and dollar (insert " $"))
(cperl-indent-line)
;;(insert " () {\n}")
(cond
(cperl-extra-newline-before-brace
- (insert " ()\n")
+ (insert (if do "\n" " ()\n"))
(insert "{")
(cperl-indent-line)
(insert "\n")
(cperl-indent-line)
- (insert "\n}"))
+ (insert "\n}")
+ (and do (insert " while ();")))
(t
- (insert " () {\n}"))
- )
+ (insert (if do " {\n} while ();" " () {\n}"))))
(or (looking-at "[ \t]\\|$") (insert " "))
(cperl-indent-line)
(if dollar (progn (search-backward "$")
- (forward-char 1))
- (search-backward ")"))
- (cperl-putback-char del-back-ch)))))
+ (if my
+ (forward-char 1)
+ (delete-char 1)))
+ (search-backward ")")
+ (if (eq last-command-char ?\()
+ (progn ; Avoid "if (())"
+ (delete-backward-char 1)
+ (delete-backward-char -1))))
+ (if delete
+ (cperl-putback-char cperl-del-back-ch))
+ (if cperl-message-electric-keyword
+ (message "Precede char by C-q to avoid expansion"))))))
+
+(defun cperl-ensure-newlines (n &optional pos)
+ "Make sure there are N newlines after the point."
+ (or pos (setq pos (point)))
+ (if (looking-at "\n")
+ (forward-char 1)
+ (insert "\n"))
+ (if (> n 1)
+ (cperl-ensure-newlines (1- n) pos)
+ (goto-char pos)))
+
+(defun cperl-electric-pod ()
+ "Insert a POD chunk appropriate after a =POD directive."
+ (let ((delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
+ (memq this-command '(self-insert-command newline))))
+ head1 notlast name p really-delete over)
+ (and (save-excursion
+ (forward-word -1)
+ (and
+ (eq (preceding-char) ?=)
+ (progn
+ (setq head1 (looking-at "head1\\>[ \t]*$"))
+ (setq over (and (looking-at "over\\>[ \t]*$")
+ (not (looking-at "over[ \t]*\n\n\n*=item\\>"))))
+ (forward-char -1)
+ (bolp))
+ (or
+ (get-text-property (point) 'in-pod)
+ (cperl-after-expr-p nil "{;:")
+ (and (re-search-backward "\\(\\`\n?\\|^\n\\)=\\sw+" (point-min) t)
+ (not (looking-at "\n*=cut"))
+ (or (not cperl-use-syntax-table-text-property)
+ (eq (get-text-property (point) 'syntax-type) 'pod))))))
+ (progn
+ (save-excursion
+ (setq notlast (re-search-forward "^\n=" nil t)))
+ (or notlast
+ (progn
+ (insert "\n\n=cut")
+ (cperl-ensure-newlines 2)
+ (forward-word -2)
+ (if (and head1
+ (not
+ (save-excursion
+ (forward-char -1)
+ (re-search-backward "\\(\\`\n?\\|\n\n\\)=head1\\>"
+ nil t)))) ; Only one
+ (progn
+ (forward-word 1)
+ (setq name (file-name-sans-extension
+ (file-name-nondirectory (buffer-file-name)))
+ p (point))
+ (insert " NAME\n\n" name
+ " - \n\n=head1 SYNOPSIS\n\n\n\n"
+ "=head1 DESCRIPTION")
+ (cperl-ensure-newlines 4)
+ (goto-char p)
+ (forward-word 2)
+ (end-of-line)
+ (setq really-delete t))
+ (forward-word 1))))
+ (if over
+ (progn
+ (setq p (point))
+ (insert "\n\n=item \n\n\n\n"
+ "=back")
+ (cperl-ensure-newlines 2)
+ (goto-char p)
+ (forward-word 1)
+ (end-of-line)
+ (setq really-delete t)))
+ (if (and delete really-delete)
+ (cperl-putback-char cperl-del-back-ch))))))
(defun cperl-electric-else ()
- "Insert a construction appropriate after a keyword."
+ "Insert a construction appropriate after a keyword.
+Help message may be switched off by setting `cperl-message-electric-keyword'
+to nil."
(let ((beg (save-excursion (beginning-of-line) (point))))
(and (save-excursion
(backward-sexp 1)
- (cperl-after-expr-p nil "{};:"))
- (save-excursion
- (not
+ (cperl-after-expr-p nil "{;:"))
+ (save-excursion
+ (not
(re-search-backward
- "[#\"'`]\\|\\<q\\(\\|[wqx]\\)\\>"
+ "[#\"'`]\\|\\<q\\(\\|[wqxr]\\)\\>"
beg t)))
(save-excursion (or (not (re-search-backward "^=" nil t))
- (looking-at "=cut")))
+ (looking-at "=cut")
+ (and cperl-use-syntax-table-text-property
+ (not (eq (get-text-property (point)
+ 'syntax-type)
+ 'pod)))))
(progn
(cperl-indent-line)
;;(insert " {\n\n}")
(cperl-indent-line)
(insert "\n\n}"))
(t
- (insert " {\n\n}"))
- )
+ (insert " {\n\n}")))
(or (looking-at "[ \t]\\|$") (insert " "))
(cperl-indent-line)
(forward-line -1)
(cperl-indent-line)
- (cperl-putback-char del-back-ch)))))
+ (cperl-putback-char cperl-del-back-ch)
+ (setq this-command 'cperl-electric-else)
+ (if cperl-message-electric-keyword
+ (message "Precede char by C-q to avoid expansion"))))))
(defun cperl-linefeed ()
- "Go to end of line, open a new line and indent appropriately."
+ "Go to end of line, open a new line and indent appropriately.
+If in POD, insert appropriate lines."
(interactive)
(let ((beg (save-excursion (beginning-of-line) (point)))
(end (save-excursion (end-of-line) (point)))
- (pos (point)) start)
+ (pos (point)) start over cut res)
(if (and ; Check if we need to split:
- ; i.e., on a boundary and inside "{...}"
+ ; i.e., on a boundary and inside "{...}"
(save-excursion (cperl-to-comment-or-eol)
- (>= (point) pos)) ; Not in a comment
+ (>= (point) pos)) ; Not in a comment
(or (save-excursion
(skip-chars-backward " \t" beg)
(forward-char -1)
(re-search-forward "\\=[ \t]*;" end t)) ; Before spaces + ;
(save-excursion
(and
- (eq (car (parse-partial-sexp pos end -1)) -1)
+ (eq (car (parse-partial-sexp pos end -1)) -1)
; Leave the level of parens
(looking-at "[,; \t]*\\($\\|#\\)") ; Comma to allow anon subr
; Are at end
+ (cperl-after-block-p (point-min))
(progn
(backward-sexp 1)
(setq start (point-marker))
- (<= start pos))))) ; Redundant? Are after the
+ (<= start pos))))) ; Redundant? Are after the
; start of parens group.
(progn
(skip-chars-backward " \t")
(cperl-indent-line)
(beginning-of-line)
(or (looking-at "[ \t]*}[,; \t]*$") ; If there is a statement
- ; after, move it to separate line
+ ; after, move it to separate line
(progn
(end-of-line)
(search-backward "}" beg)
(insert "\n")
(cperl-indent-line)
(forward-line -1)))
- (forward-line -1) ; We are on the line before target
+ (forward-line -1) ; We are on the line before target
(end-of-line)
(newline-and-indent))
- (end-of-line) ; else
+ (end-of-line) ; else - no splitting
(cond
((and (looking-at "\n[ \t]*{$")
(save-excursion
(skip-chars-backward " \t")
(eq (preceding-char) ?\)))) ; Probably if () {} group
- ; with an extra newline.
+ ; with an extra newline.
(forward-line 2)
(cperl-indent-line))
+ ((save-excursion ; In POD header
+ (forward-paragraph -1)
+ ;; (re-search-backward "\\(\\`\n?\\|\n\n\\)=head1\\b")
+ ;; We are after \n now, so look for the rest
+ (if (looking-at "\\(\\`\n?\\|\n\\)=\\sw+")
+ (progn
+ (setq cut (looking-at "\\(\\`\n?\\|\n\\)=cut\\>"))
+ (setq over (looking-at "\\(\\`\n?\\|\n\\)=over\\>"))
+ t)))
+ (if (and over
+ (progn
+ (forward-paragraph -1)
+ (forward-word 1)
+ (setq pos (point))
+ (setq cut (buffer-substring (point)
+ (save-excursion
+ (end-of-line)
+ (point))))
+ (delete-char (- (save-excursion (end-of-line) (point))
+ (point)))
+ (setq res (expand-abbrev))
+ (save-excursion
+ (goto-char pos)
+ (insert cut))
+ res))
+ nil
+ (cperl-ensure-newlines (if cut 2 4))
+ (forward-line 2)))
+ ((get-text-property (point) 'in-pod) ; In POD section
+ (cperl-ensure-newlines 4)
+ (forward-line 2))
((looking-at "\n[ \t]*$") ; Next line is empty - use it.
(forward-line 1)
(cperl-indent-line))
(interactive "P")
(if cperl-auto-newline
(cperl-electric-terminator arg)
- (self-insert-command (prefix-numeric-value arg))))
+ (self-insert-command (prefix-numeric-value arg))
+ (if cperl-autoindent-on-semi
+ (cperl-indent-line))))
(defun cperl-electric-terminator (arg)
"Insert character and correct line's indentation."
(interactive "P")
- (let (insertpos (end (point))
- (auto (and cperl-auto-newline
- (or (not (eq last-command-char ?:))
- cperl-auto-newline-after-colon))))
- (if (and ;;(not arg)
+ (let ((end (point))
+ (auto (and cperl-auto-newline
+ (or (not (eq last-command-char ?:))
+ cperl-auto-newline-after-colon)))
+ insertpos)
+ (if (and ;;(not arg)
(eolp)
(not (save-excursion
(beginning-of-line)
(let ((pps (parse-partial-sexp (point) end)))
(or (nth 3 pps) (nth 4 pps) (nth 5 pps))))))))
(progn
- (insert last-command-char)
+ (self-insert-command (prefix-numeric-value arg))
;;(forward-char -1)
(if auto (setq insertpos (point-marker)))
;;(forward-char 1)
(progn
(newline)
(cperl-indent-line)))
-;; (save-excursion
-;; (if insertpos (progn (goto-char (marker-position insertpos))
-;; (search-forward (make-string
-;; 1 last-command-char))
-;; (setq insertpos (1- (point)))))
-;; (delete-char -1))))
(save-excursion
(if insertpos (goto-char (1- (marker-position insertpos)))
(forward-char -1))
(self-insert-command (prefix-numeric-value arg)))))
(defun cperl-electric-backspace (arg)
- "Backspace-untabify, or remove the whitespace inserted by an electric key."
+ "Backspace, or remove the whitespace around the point inserted by an electric
+key. Will untabivy if `cperl-electric-backspace-untabify' is non-nil."
(interactive "p")
- (if (and cperl-auto-newline
- (memq last-command '(cperl-electric-semi
+ (if (and cperl-auto-newline
+ (memq last-command '(cperl-electric-semi
cperl-electric-terminator
cperl-electric-lbrace))
- (memq (preceding-char) '(? ?\t ?\n)))
+ (memq (preceding-char) '(?\ ?\t ?\n)))
(let (p)
- (if (eq last-command 'cperl-electric-lbrace)
+ (if (eq last-command 'cperl-electric-lbrace)
(skip-chars-forward " \t\n"))
(setq p (point))
(skip-chars-backward " \t\n")
(delete-region (point) p))
- (backward-delete-char-untabify arg)))
+ (and (eq last-command 'cperl-electric-else)
+ ;; We are removing the whitespace *inside* cperl-electric-else
+ (setq this-command 'cperl-electric-else-really))
+ (if (and cperl-auto-newline
+ (eq last-command 'cperl-electric-else-really)
+ (memq (preceding-char) '(?\ ?\t ?\n)))
+ (let (p)
+ (skip-chars-forward " \t\n")
+ (setq p (point))
+ (skip-chars-backward " \t\n")
+ (delete-region (point) p))
+ (if cperl-electric-backspace-untabify
+ (backward-delete-char-untabify arg)
+ (delete-backward-char arg)))))
-(defun cperl-inside-parens-p ()
+(defun cperl-inside-parens-p () ;; NOT USED????
(condition-case ()
(save-excursion
(save-restriction
\f
(defun cperl-indent-command (&optional whole-exp)
"Indent current line as Perl code, or in some cases insert a tab character.
-If `cperl-tab-always-indent' is non-nil (the default), always indent current line.
-Otherwise, indent the current line only if point is at the left margin
+If `cperl-tab-always-indent' is non-nil (the default), always indent current
+line. Otherwise, indent the current line only if point is at the left margin
or in the line's indentation; otherwise insert a tab.
A numeric argument, regardless of its value,
so that this line becomes properly indented.
The relative indentation among the lines of the expression are preserved."
(interactive "P")
+ (cperl-update-syntaxification (point) (point))
(if whole-exp
;; If arg, always indent this line as Perl
;; and shift remaining lines of expression the same amount.
(goto-char beg)
(forward-line 1)
(setq beg (point)))
- (if (> end beg)
+ (if (and shift-amt (> end beg))
(indent-code-rigidly beg end shift-amt "#")))
(if (and (not cperl-tab-always-indent)
(save-excursion
(insert-tab)
(cperl-indent-line))))
-(defun cperl-indent-line (&optional symbol)
+(defun cperl-indent-line (&optional parse-data)
"Indent current line as Perl code.
Return the amount the indentation changed by."
- (let (indent
- beg shift-amt
- (case-fold-search nil)
- (pos (- (point-max) (point))))
- (setq indent (cperl-calculate-indent nil symbol))
+ (let ((case-fold-search nil)
+ (pos (- (point-max) (point)))
+ indent i beg shift-amt)
+ (setq indent (cperl-calculate-indent parse-data)
+ i indent)
(beginning-of-line)
(setq beg (point))
- (cond ((eq indent nil)
- (setq indent (current-indentation)))
+ (cond ((or (eq indent nil) (eq indent t))
+ (setq indent (current-indentation) i nil))
;;((eq indent t) ; Never?
;; (setq indent (cperl-calculate-indent-within-comment)))
;;((looking-at "[ \t]*#")
(t
(skip-chars-forward " \t")
(if (listp indent) (setq indent (car indent)))
- (cond ((looking-at "[A-Za-z]+:[^:]")
+ (cond ((and (looking-at "[A-Za-z_][A-Za-z_0-9]*:[^:]")
+ (not (looking-at "[smy]:\\|tr:")))
(and (> indent 0)
(setq indent (max cperl-min-label-indent
(+ indent cperl-label-offset)))))
((= (following-char) ?{)
(setq indent (+ indent cperl-brace-offset))))))
(skip-chars-forward " \t")
- (setq shift-amt (- indent (current-column)))
- (if (zerop shift-amt)
+ (setq shift-amt (and i (- indent (current-column))))
+ (if (or (not shift-amt)
+ (zerop shift-amt))
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos)))
- (delete-region beg (point))
- (indent-to indent)
+ ;;;(delete-region beg (point))
+ ;;;(indent-to indent)
+ (cperl-make-indent indent)
;; If initial point was within line's indentation,
;; position after the indentation. Else stay at same point in text.
(if (> (- (point-max) pos) (point))
shift-amt))
(defun cperl-after-label ()
- ;; Returns true if the point is after label. Does not do save-excursion.
+ ;; Returns true if the point is after label. Does not do save-excursion.
(and (eq (preceding-char) ?:)
(memq (char-syntax (char-after (- (point) 2)))
'(?w ?_))
(looking-at "[a-zA-Z_][a-zA-Z0-9_]*:[^:]"))))
(defun cperl-get-state (&optional parse-start start-state)
- ;; returns list (START STATE DEPTH PRESTART), START is a good place
- ;; to start parsing, STATE is what is returned by
- ;; `parse-partial-sexp'. DEPTH is true is we are immediately after
- ;; end of block which contains START. PRESTART is the position
- ;; basing on which START was found.
+ ;; returns list (START STATE DEPTH PRESTART),
+ ;; START is a good place to start parsing, or equal to
+ ;; PARSE-START if preset,
+ ;; STATE is what is returned by `parse-partial-sexp'.
+ ;; DEPTH is true is we are immediately after end of block
+ ;; which contains START.
+ ;; PRESTART is the position basing on which START was found.
(save-excursion
(let ((start-point (point)) depth state start prestart)
- (if parse-start
+ (if (and parse-start
+ (<= parse-start start-point))
(goto-char parse-start)
- (beginning-of-defun))
+ (beginning-of-defun)
+ (setq start-state nil))
(setq prestart (point))
(if start-state nil
;; Try to go out, if sub is not on the outermost level
(beginning-of-line 2))) ; Go to the next line.
(if start (goto-char start))) ; Not at the start of file
(setq start (point))
- (if (< start start-point) (setq parse-start start))
(or state (setq state (parse-partial-sexp start start-point -1 nil start-state)))
(list start state depth prestart))))
-(defun cperl-block-p () ; Do not C-M-q ! One string contains ";" !
- ;; Positions is before ?\{. Checks whether it starts a block.
- ;; No save-excursion!
- (cperl-backward-to-noncomment (point-min))
- ;;(skip-chars-backward " \t\n\f")
- (or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
- ; Label may be mixed up with `$blah :'
- (save-excursion (cperl-after-label))
- (and (memq (char-syntax (preceding-char)) '(?w ?_))
- (progn
- (backward-sexp)
- ;; Need take into account `bless', `return', `tr',...
- (or (and (looking-at "[a-zA-Z0-9_:]+[ \t\n\f]*[{#]") ; Method call syntax
- (not (looking-at "\\(bless\\|return\\|qw\\|tr\\|[smy]\\)\\>")))
- (progn
- (skip-chars-backward " \t\n\f")
- (and (memq (char-syntax (preceding-char)) '(?w ?_))
- (progn
- (backward-sexp)
- (looking-at
- "sub[ \t]+[a-zA-Z0-9_:]+[ \t\n\f]*[#{]")))))))))
-
-(defun cperl-calculate-indent (&optional parse-start symbol)
- "Return appropriate indentation for current line as Perl code.
-In usual case returns an integer: the column to indent to.
-Returns nil if line starts inside a string, t if in a comment."
- (save-excursion
- (if (memq (get-text-property (point) 'syntax-type) '(pod here-doc)) nil
- (beginning-of-line)
- (let* ((indent-point (point))
- (case-fold-search nil)
- (s-s (cperl-get-state))
- (start (nth 0 s-s))
- (state (nth 1 s-s))
- (containing-sexp (car (cdr state)))
- (char-after (save-excursion
- (skip-chars-forward " \t")
- (following-char)))
- (start-indent (save-excursion
- (goto-char start)
- (- (current-indentation)
- (if (nth 2 s-s) cperl-indent-level 0))))
- old-indent)
- ;; (or parse-start (null symbol)
- ;; (setq parse-start (symbol-value symbol)
- ;; start-indent (nth 2 parse-start)
- ;; parse-start (car parse-start)))
- ;; (if parse-start
- ;; (goto-char parse-start)
- ;; (beginning-of-defun))
- ;; ;; Try to go out
- ;; (while (< (point) indent-point)
- ;; (setq start (point) parse-start start moved nil
- ;; state (parse-partial-sexp start indent-point -1))
- ;; (if (> (car state) -1) nil
- ;; ;; The current line could start like }}}, so the indentation
- ;; ;; corresponds to a different level than what we reached
- ;; (setq moved t)
- ;; (beginning-of-line 2))) ; Go to the next line.
- ;; (if start ; Not at the start of file
- ;; (progn
- ;; (goto-char start)
- ;; (setq start-indent (current-indentation))
- ;; (if moved ; Should correct...
- ;; (setq start-indent (- start-indent cperl-indent-level))))
- ;; (setq start-indent 0))
- ;; (if (< (point) indent-point) (setq parse-start (point)))
- ;; (or state (setq state (parse-partial-sexp
- ;; (point) indent-point -1 nil start-state)))
- ;; (setq containing-sexp
- ;; (or (car (cdr state))
- ;; (and (>= (nth 6 state) 0) old-containing-sexp))
- ;; old-containing-sexp nil start-state nil)
-;;;; (while (< (point) indent-point)
-;;;; (setq parse-start (point))
-;;;; (setq state (parse-partial-sexp (point) indent-point -1 nil start-state))
-;;;; (setq containing-sexp
-;;;; (or (car (cdr state))
-;;;; (and (>= (nth 6 state) 0) old-containing-sexp))
-;;;; old-containing-sexp nil start-state nil))
- ;; (if symbol (set symbol (list indent-point state start-indent)))
- ;; (goto-char indent-point)
- (cond ((or (nth 3 state) (nth 4 state))
- ;; return nil or t if should not change this line
- (nth 4 state))
- ((null containing-sexp)
- ;; Line is at top level. May be data or function definition,
- ;; or may be function argument declaration.
- ;; Indent like the previous top level line
- ;; unless that ends in a closeparen without semicolon,
- ;; in which case this line is the first argument decl.
- (skip-chars-forward " \t")
- (+ start-indent
- (if (= (following-char) ?{) cperl-continued-brace-offset 0)
- (progn
- (cperl-backward-to-noncomment (or parse-start (point-min)))
- ;;(skip-chars-backward " \t\f\n")
- ;; Look at previous line that's at column 0
- ;; to determine whether we are in top-level decls
- ;; or function's arg decls. Set basic-indent accordingly.
- ;; Now add a little if this is a continuation line.
- (if (or (bobp)
- (memq (preceding-char) (append " ;}" nil)) ; Was ?\)
- (memq char-after (append ")]}" nil))
- (and (eq (preceding-char) ?\:) ; label
- (progn
- (forward-sexp -1)
- (skip-chars-backward " \t")
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*[ \t]*:"))))
- 0
- cperl-continued-statement-offset))))
- ((/= (char-after containing-sexp) ?{)
- ;; line is expression, not statement:
- ;; indent to just after the surrounding open,
- ;; skip blanks if we do not close the expression.
- (goto-char (1+ containing-sexp))
- (or (memq char-after (append ")]}" nil))
- (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (current-column))
- ((progn
- ;; Containing-expr starts with \{. Check whether it is a hash.
- (goto-char containing-sexp)
- (not (cperl-block-p)))
- (goto-char (1+ containing-sexp))
- (or (eq char-after ?\})
- (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (+ (current-column) ; Correct indentation of trailing ?\}
- (if (eq char-after ?\}) (+ cperl-indent-level
- cperl-close-paren-offset)
- 0)))
- (t
- ;; Statement level. Is it a continuation or a new statement?
- ;; Find previous non-comment character.
- (goto-char indent-point)
- (cperl-backward-to-noncomment containing-sexp)
- ;; Back up over label lines, since they don't
- ;; affect whether our line is a continuation.
- (while (or (eq (preceding-char) ?\,)
- (and (eq (preceding-char) ?:)
- (or;;(eq (char-after (- (point) 2)) ?\') ; ????
- (memq (char-syntax (char-after (- (point) 2)))
- '(?w ?_)))))
- (if (eq (preceding-char) ?\,)
- ;; Will go to beginning of line, essentially.
- ;; Will ignore embedded sexpr XXXX.
- (cperl-backward-to-start-of-continued-exp containing-sexp))
- (beginning-of-line)
- (cperl-backward-to-noncomment containing-sexp))
- ;; Now we get the answer.
- (if (not (memq (preceding-char) (append ", ;}{" '(nil)))) ; Was ?\,
- ;; This line is continuation of preceding line's statement;
- ;; indent `cperl-continued-statement-offset' more than the
- ;; previous line of the statement.
- (progn
- (cperl-backward-to-start-of-continued-exp containing-sexp)
- (+ (if (memq char-after (append "}])" nil))
- 0 ; Closing parenth
- cperl-continued-statement-offset)
- (current-column)
- (if (eq char-after ?\{)
- cperl-continued-brace-offset 0)))
- ;; This line starts a new statement.
- ;; Position following last unclosed open.
- (goto-char containing-sexp)
- ;; Is line first statement after an open-brace?
- (or
- ;; If no, find that first statement and indent like
- ;; it. If the first statement begins with label, do
- ;; not believe when the indentation of the label is too
- ;; small.
- (save-excursion
- (forward-char 1)
- (setq old-indent (current-indentation))
- (let ((colon-line-end 0))
- (while (progn (skip-chars-forward " \t\n")
- (looking-at "#\\|[a-zA-Z0-9_$]*:[^:]"))
- ;; Skip over comments and labels following openbrace.
- (cond ((= (following-char) ?\#)
- (forward-line 1))
- ;; label:
- (t
- (save-excursion (end-of-line)
- (setq colon-line-end (point)))
- (search-forward ":"))))
- ;; The first following code counts
- ;; if it is before the line we want to indent.
- (and (< (point) indent-point)
- (if (> colon-line-end (point)) ; After label
- (if (> (current-indentation)
- cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- ;; Do not believe: `max' is involved
- (+ old-indent cperl-indent-level))
- (current-column)))))
- ;; If no previous statement,
- ;; indent it relative to line brace is on.
- ;; For open brace in column zero, don't let statement
- ;; start there too. If cperl-indent-level is zero,
- ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
- ;; For open-braces not the first thing in a line,
- ;; add in cperl-brace-imaginary-offset.
-
- ;; If first thing on a line: ?????
- (+ (if (and (bolp) (zerop cperl-indent-level))
- (+ cperl-brace-offset cperl-continued-statement-offset)
- cperl-indent-level)
- ;; Move back over whitespace before the openbrace.
- ;; If openbrace is not first nonwhite thing on the line,
- ;; add the cperl-brace-imaginary-offset.
- (progn (skip-chars-backward " \t")
- (if (bolp) 0 cperl-brace-imaginary-offset))
- ;; If the openbrace is preceded by a parenthesized exp,
- ;; move to the beginning of that;
- ;; possibly a different line
- (progn
- (if (eq (preceding-char) ?\))
- (forward-sexp -1))
- ;; In the case it starts a subroutine, indent with
- ;; respect to `sub', not with respect to the the
- ;; first thing on the line, say in the case of
- ;; anonymous sub in a hash.
+(defvar cperl-look-for-prop '((pod in-pod) (here-doc-delim here-doc-group)))
+
+(defun cperl-beginning-of-property (p prop &optional lim)
+ "Given that P has a property PROP, find where the property starts.
+Will not look before LIM."
+ ;;; XXXX What to do at point-max???
+ (or (previous-single-property-change (cperl-1+ p) prop lim)
+ (point-min))
+;;; (cond ((eq p (point-min))
+;;; p)
+;;; ((and lim (<= p lim))
+;;; p)
+;;; ((not (get-text-property (1- p) prop))
+;;; p)
+;;; (t (or (previous-single-property-change p look-prop lim)
+;;; (point-min))))
+ )
+
+(defun cperl-sniff-for-indent (&optional parse-data) ; was parse-start
+ ;; Old workhorse for calculation of indentation; the major problem
+ ;; is that it mixes the sniffer logic to understand what the current line
+ ;; MEANS with the logic to actually calculate where to indent it.
+ ;; The latter part should be eventually moved to `cperl-calculate-indent';
+ ;; actually, this is mostly done now...
+ (cperl-update-syntaxification (point) (point))
+ (let ((res (get-text-property (point) 'syntax-type)))
+ (save-excursion
+ (cond
+ ((and (memq res '(pod here-doc here-doc-delim format))
+ (not (get-text-property (point) 'indentable)))
+ (vector res))
+ ;; before start of POD - whitespace found since do not have 'pod!
+ ((looking-at "[ \t]*\n=")
+ (error "Spaces before POD section!"))
+ ((and (not cperl-indent-left-aligned-comments)
+ (looking-at "^#"))
+ [comment-special:at-beginning-of-line])
+ ((get-text-property (point) 'in-pod)
+ [in-pod])
+ (t
+ (beginning-of-line)
+ (let* ((indent-point (point))
+ (char-after-pos (save-excursion
+ (skip-chars-forward " \t")
+ (point)))
+ (char-after (char-after char-after-pos))
+ (pre-indent-point (point))
+ p prop look-prop is-block delim)
+ (save-excursion ; Know we are not in POD, find appropriate pos before
+ (cperl-backward-to-noncomment nil)
+ (setq p (max (point-min) (1- (point)))
+ prop (get-text-property p 'syntax-type)
+ look-prop (or (nth 1 (assoc prop cperl-look-for-prop))
+ 'syntax-type))
+ (if (memq prop '(pod here-doc format here-doc-delim))
+ (progn
+ (goto-char (cperl-beginning-of-property p look-prop))
+ (beginning-of-line)
+ (setq pre-indent-point (point)))))
+ (goto-char pre-indent-point) ; Orig line skipping preceeding pod/etc
+ (let* ((case-fold-search nil)
+ (s-s (cperl-get-state (car parse-data) (nth 1 parse-data)))
+ (start (or (nth 2 parse-data) ; last complete sexp terminated
+ (nth 0 s-s))) ; Good place to start parsing
+ (state (nth 1 s-s))
+ (containing-sexp (car (cdr state)))
+ old-indent)
+ (if (and
+ ;;containing-sexp ;; We are buggy at toplevel :-(
+ parse-data)
+ (progn
+ (setcar parse-data pre-indent-point)
+ (setcar (cdr parse-data) state)
+ (or (nth 2 parse-data)
+ (setcar (cddr parse-data) start))
+ ;; Before this point: end of statement
+ (setq old-indent (nth 3 parse-data))))
+ (cond ((get-text-property (point) 'indentable)
+ ;; indent to "after" the surrounding open
+ ;; (same offset as `cperl-beautify-regexp-piece'),
+ ;; skip blanks if we do not close the expression.
+ (setq delim ; We do not close the expression
+ (get-text-property
+ (cperl-1+ char-after-pos) 'indentable)
+ p (1+ (cperl-beginning-of-property
+ (point) 'indentable))
+ is-block ; misused for: preceeding line in REx
+ (save-excursion ; Find preceeding line
+ (cperl-backward-to-noncomment p)
+ (beginning-of-line)
+ (if (<= (point) p)
+ (progn ; get indent from the first line
+ (goto-char p)
+ (skip-chars-forward " \t")
+ (if (memq (char-after (point))
+ (append "#\n" nil))
+ nil ; Can't use intentation of this line...
+ (point)))
+ (skip-chars-forward " \t")
+ (point)))
+ prop (parse-partial-sexp p char-after-pos))
+ (cond ((not delim) ; End the REx, ignore is-block
+ (vector 'indentable 'terminator p is-block))
+ (is-block ; Indent w.r.t. preceeding line
+ (vector 'indentable 'cont-line char-after-pos
+ is-block char-after p))
+ (t ; No preceeding line...
+ (vector 'indentable 'first-line p))))
+ ((get-text-property char-after-pos 'REx-part2)
+ (vector 'REx-part2 (point)))
+ ((nth 4 state)
+ [comment])
+ ((nth 3 state)
+ [string])
+ ;; XXXX Do we need to special-case this?
+ ((null containing-sexp)
+ ;; Line is at top level. May be data or function definition,
+ ;; or may be function argument declaration.
+ ;; Indent like the previous top level line
+ ;; unless that ends in a closeparen without semicolon,
+ ;; in which case this line is the first argument decl.
+ (skip-chars-forward " \t")
+ (cperl-backward-to-noncomment (or old-indent (point-min)))
+ (setq state
+ (or (bobp)
+ (eq (point) old-indent) ; old-indent was at comment
+ (eq (preceding-char) ?\;)
+ ;; Had ?\) too
+ (and (eq (preceding-char) ?\})
+ (cperl-after-block-and-statement-beg
+ (point-min))) ; Was start - too close
+ (memq char-after (append ")]}" nil))
+ (and (eq (preceding-char) ?\:) ; label
+ (progn
+ (forward-sexp -1)
+ (skip-chars-backward " \t")
+ (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*[ \t]*:")))
+ (get-text-property (point) 'first-format-line)))
+
+ ;; Look at previous line that's at column 0
+ ;; to determine whether we are in top-level decls
+ ;; or function's arg decls. Set basic-indent accordingly.
+ ;; Now add a little if this is a continuation line.
+ (and state
+ parse-data
+ (not (eq char-after ?\C-j))
+ (setcdr (cddr parse-data)
+ (list pre-indent-point)))
+ (vector 'toplevel start char-after state (nth 2 s-s)))
+ ((not
+ (or (setq is-block
+ (and (setq delim (= (char-after containing-sexp) ?{))
+ (save-excursion ; Is it a hash?
+ (goto-char containing-sexp)
+ (cperl-block-p))))
+ cperl-indent-parens-as-block))
+ ;; group is an expression, not a block:
+ ;; indent to just after the surrounding open parens,
+ ;; skip blanks if we do not close the expression.
+ (goto-char (1+ containing-sexp))
+ (or (memq char-after
+ (append (if delim "}" ")]}") nil))
+ (looking-at "[ \t]*\\(#\\|$\\)")
+ (skip-chars-forward " \t"))
+ (setq old-indent (point)) ; delim=is-brace
+ (vector 'in-parens char-after (point) delim containing-sexp))
+ (t
+ ;; Statement level. Is it a continuation or a new statement?
+ ;; Find previous non-comment character.
+ (goto-char pre-indent-point) ; Skip one level of POD/etc
+ (cperl-backward-to-noncomment containing-sexp)
+ ;; Back up over label lines, since they don't
+ ;; affect whether our line is a continuation.
+ ;; (Had \, too)
+ (while;;(or (eq (preceding-char) ?\,)
+ (and (eq (preceding-char) ?:)
+ (or;;(eq (char-after (- (point) 2)) ?\') ; ????
+ (memq (char-syntax (char-after (- (point) 2)))
+ '(?w ?_))))
+ ;;)
+ ;; This is always FALSE?
+ (if (eq (preceding-char) ?\,)
+ ;; Will go to beginning of line, essentially.
+ ;; Will ignore embedded sexpr XXXX.
+ (cperl-backward-to-start-of-continued-exp containing-sexp))
+ (beginning-of-line)
+ (cperl-backward-to-noncomment containing-sexp))
+ ;; Now we get non-label preceeding the indent point
+ (if (not (or (eq (1- (point)) containing-sexp)
+ (memq (preceding-char)
+ (append (if is-block " ;{" " ,;{") '(nil)))
+ (and (eq (preceding-char) ?\})
+ (cperl-after-block-and-statement-beg
+ containing-sexp))
+ (get-text-property (point) 'first-format-line)))
+ ;; This line is continuation of preceding line's statement;
+ ;; indent `cperl-continued-statement-offset' more than the
+ ;; previous line of the statement.
;;
- (skip-chars-backward " \t")
- (if (and (eq (preceding-char) ?b)
- (progn
- (forward-word -1)
- (looking-at "sub\\>"))
- (setq old-indent
- (nth 1
- (parse-partial-sexp
- (save-excursion (beginning-of-line) (point))
- (point)))))
- (progn (goto-char (1+ old-indent))
- (skip-chars-forward " \t")
- (current-column))
- ;; Get initial indentation of the line we are on.
- ;; If line starts with label, calculate label indentation
- (if (save-excursion
- (beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_]*:[^:]"))
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- (cperl-calculate-indent
- (if (and parse-start (<= parse-start (point)))
- parse-start)))
- (current-indentation)))))))))))))
-
-(defvar cperl-indent-alist
- '((string nil)
- (comment nil)
- (toplevel 0)
- (toplevel-after-parenth 2)
- (toplevel-continued 2)
- (expression 1))
+ ;; There might be a label on this line, just
+ ;; consider it bad style and ignore it.
+ (progn
+ (cperl-backward-to-start-of-continued-exp containing-sexp)
+ (vector 'continuation (point) char-after is-block delim))
+ ;; This line starts a new statement.
+ ;; Position following last unclosed open brace
+ (goto-char containing-sexp)
+ ;; Is line first statement after an open-brace?
+ (or
+ ;; If no, find that first statement and indent like
+ ;; it. If the first statement begins with label, do
+ ;; not believe when the indentation of the label is too
+ ;; small.
+ (save-excursion
+ (forward-char 1)
+ (let ((colon-line-end 0))
+ (while
+ (progn (skip-chars-forward " \t\n")
+ ;; s: foo : bar :x is NOT label
+ (and (looking-at "#\\|\\([a-zA-Z0-9_$]+\\):[^:]\\|=[a-zA-Z]")
+ (not (looking-at "[sym]:\\|tr:"))))
+ ;; Skip over comments and labels following openbrace.
+ (cond ((= (following-char) ?\#)
+ (forward-line 1))
+ ((= (following-char) ?\=)
+ (goto-char
+ (or (next-single-property-change (point) 'in-pod)
+ (point-max)))) ; do not loop if no syntaxification
+ ;; label:
+ (t
+ (save-excursion (end-of-line)
+ (setq colon-line-end (point)))
+ (search-forward ":"))))
+ ;; We are at beginning of code (NOT label or comment)
+ ;; First, the following code counts
+ ;; if it is before the line we want to indent.
+ (and (< (point) indent-point)
+ (vector 'have-prev-sibling (point) colon-line-end
+ containing-sexp))))
+ (progn
+ ;; If no previous statement,
+ ;; indent it relative to line brace is on.
+
+ ;; For open-braces not the first thing in a line,
+ ;; add in cperl-brace-imaginary-offset.
+
+ ;; If first thing on a line: ?????
+ ;; Move back over whitespace before the openbrace.
+ (setq ; brace first thing on a line
+ old-indent (progn (skip-chars-backward " \t") (bolp)))
+ ;; Should we indent w.r.t. earlier than start?
+ ;; Move to start of control group, possibly on a different line
+ (or cperl-indent-wrt-brace
+ (cperl-backward-to-noncomment (point-min)))
+ ;; If the openbrace is preceded by a parenthesized exp,
+ ;; move to the beginning of that;
+ (if (eq (preceding-char) ?\))
+ (progn
+ (forward-sexp -1)
+ (cperl-backward-to-noncomment (point-min))))
+ ;; In the case it starts a subroutine, indent with
+ ;; respect to `sub', not with respect to the
+ ;; first thing on the line, say in the case of
+ ;; anonymous sub in a hash.
+ (if (and;; Is it a sub in group starting on this line?
+ (cond ((get-text-property (point) 'attrib-group)
+ (goto-char (cperl-beginning-of-property
+ (point) 'attrib-group)))
+ ((eq (preceding-char) ?b)
+ (forward-sexp -1)
+ (looking-at "sub\\>")))
+ (setq p (nth 1 ; start of innermost containing list
+ (parse-partial-sexp
+ (save-excursion (beginning-of-line)
+ (point))
+ (point)))))
+ (progn
+ (goto-char (1+ p)) ; enclosing block on the same line
+ (skip-chars-forward " \t")
+ (vector 'code-start-in-block containing-sexp char-after
+ (and delim (not is-block)) ; is a HASH
+ old-indent ; brace first thing on a line
+ t (point) ; have something before...
+ )
+ ;;(current-column)
+ )
+ ;; Get initial indentation of the line we are on.
+ ;; If line starts with label, calculate label indentation
+ (vector 'code-start-in-block containing-sexp char-after
+ (and delim (not is-block)) ; is a HASH
+ old-indent ; brace first thing on a line
+ nil (point))))))))))))))) ; nothing interesting before
+
+(defvar cperl-indent-rules-alist
+ '((pod nil) ; via `syntax-type' property
+ (here-doc nil) ; via `syntax-type' property
+ (here-doc-delim nil) ; via `syntax-type' property
+ (format nil) ; via `syntax-type' property
+ (in-pod nil) ; via `in-pod' property
+ (comment-special:at-beginning-of-line nil)
+ (string t)
+ (comment nil))
"Alist of indentation rules for CPerl mode.
The values mean:
nil: do not indent;
number: add this amount of indentation.")
-(defun cperl-where-am-i (&optional parse-start start-state)
- ;; Unfinished
- "Return a list of lists ((TYPE POS)...) of good points before the point.
-POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'."
+(defun cperl-calculate-indent (&optional parse-data) ; was parse-start
+ "Return appropriate indentation for current line as Perl code.
+In usual case returns an integer: the column to indent to.
+Returns nil if line starts inside a string, t if in a comment.
+
+Will not correct the indentation for labels, but will correct it for braces
+and closing parentheses and brackets."
+ ;; This code is still a broken architecture: in some cases we need to
+ ;; compensate for some modifications which `cperl-indent-line' will add later
(save-excursion
- (let* ((start-point (point))
- (s-s (cperl-get-state))
- (start (nth 0 s-s))
- (state (nth 1 s-s))
- (prestart (nth 3 s-s))
- (containing-sexp (car (cdr state)))
- (case-fold-search nil)
- (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
- (cond ((nth 3 state) ; In string
- (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
- ((nth 4 state) ; In comment
- (setq res (cons '(comment) res)))
- ((null containing-sexp)
- ;; Line is at top level.
- ;; Indent like the previous top level line
- ;; unless that ends in a closeparen without semicolon,
- ;; in which case this line is the first argument decl.
- (cperl-backward-to-noncomment (or parse-start (point-min)))
- ;;(skip-chars-backward " \t\f\n")
- (cond
- ((or (bobp)
- (memq (preceding-char) (append ";}" nil)))
- (setq res (cons (list 'toplevel start) res)))
- ((eq (preceding-char) ?\) )
- (setq res (cons (list 'toplevel-after-parenth start) res)))
- (t
- (setq res (cons (list 'toplevel-continued start) res)))))
- ((/= (char-after containing-sexp) ?{)
- ;; line is expression, not statement:
- ;; indent to just after the surrounding open.
- ;; skip blanks if we do not close the expression.
- (setq res (cons (list 'expression-blanks
- (progn
- (goto-char (1+ containing-sexp))
- (or (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (point)))
- (cons (list 'expression containing-sexp) res))))
- ((progn
- ;; Containing-expr starts with \{. Check whether it is a hash.
- (goto-char containing-sexp)
- (not (cperl-block-p)))
- (setq res (cons (list 'expression-blanks
- (progn
- (goto-char (1+ containing-sexp))
- (or (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (point)))
- (cons (list 'expression containing-sexp) res))))
- (t
- ;; Statement level.
- (setq res (cons (list 'in-block containing-sexp) res))
- ;; Is it a continuation or a new statement?
- ;; Find previous non-comment character.
- (cperl-backward-to-noncomment containing-sexp)
- ;; Back up over label lines, since they don't
- ;; affect whether our line is a continuation.
- ;; Back up comma-delimited lines too ?????
- (while (or (eq (preceding-char) ?\,)
- (save-excursion (cperl-after-label)))
- (if (eq (preceding-char) ?\,)
- ;; Will go to beginning of line, essentially
- ;; Will ignore embedded sexpr XXXX.
- (cperl-backward-to-start-of-continued-exp containing-sexp))
- (beginning-of-line)
- (cperl-backward-to-noncomment containing-sexp))
- ;; Now we get the answer.
- (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
- ;; This line is continuation of preceding line's statement.
- (list (list 'statement-continued containing-sexp))
- ;; This line starts a new statement.
- ;; Position following last unclosed open.
- (goto-char containing-sexp)
- ;; Is line first statement after an open-brace?
- (or
- ;; If no, find that first statement and indent like
- ;; it. If the first statement begins with label, do
- ;; not believe when the indentation of the label is too
- ;; small.
- (save-excursion
- (forward-char 1)
- (let ((colon-line-end 0))
- (while (progn (skip-chars-forward " \t\n" start-point)
- (and (< (point) start-point)
- (looking-at
- "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
- ;; Skip over comments and labels following openbrace.
- (cond ((= (following-char) ?\#)
- ;;(forward-line 1)
- (end-of-line))
- ;; label:
- (t
- (save-excursion (end-of-line)
- (setq colon-line-end (point)))
- (search-forward ":"))))
- ;; Now at the point, after label, or at start
- ;; of first statement in the block.
- (and (< (point) start-point)
- (if (> colon-line-end (point))
- ;; Before statement after label
- (if (> (current-indentation)
- cperl-min-label-indent)
- (list (list 'label-in-block (point)))
- ;; Do not believe: `max' is involved
- (list
- (list 'label-in-block-min-indent (point))))
- ;; Before statement
- (list 'statement-in-block (point))))))
- ;; If no previous statement,
- ;; indent it relative to line brace is on.
- ;; For open brace in column zero, don't let statement
- ;; start there too. If cperl-indent-level is zero,
- ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
- ;; For open-braces not the first thing in a line,
- ;; add in cperl-brace-imaginary-offset.
-
- ;; If first thing on a line: ?????
- (+ (if (and (bolp) (zerop cperl-indent-level))
- (+ cperl-brace-offset cperl-continued-statement-offset)
- cperl-indent-level)
- ;; Move back over whitespace before the openbrace.
- ;; If openbrace is not first nonwhite thing on the line,
- ;; add the cperl-brace-imaginary-offset.
- (progn (skip-chars-backward " \t")
- (if (bolp) 0 cperl-brace-imaginary-offset))
- ;; If the openbrace is preceded by a parenthesized exp,
- ;; move to the beginning of that;
- ;; possibly a different line
- (progn
- (if (eq (preceding-char) ?\))
- (forward-sexp -1))
- ;; Get initial indentation of the line we are on.
- ;; If line starts with label, calculate label indentation
- (if (save-excursion
- (beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_]*:[^:]"))
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- (cperl-calculate-indent
- (if (and parse-start (<= parse-start (point)))
- parse-start)))
- (current-indentation))))))))
- res)))
+ (let ((i (cperl-sniff-for-indent parse-data)) what p)
+ (cond
+ ;;((or (null i) (eq i t) (numberp i))
+ ;; i)
+ ((vectorp i)
+ (setq what (assoc (elt i 0) cperl-indent-rules-alist))
+ (cond
+ (what (cadr what)) ; Load from table
+ ;;
+ ;; Indenters for regular expressions with //x and qw()
+ ;;
+ ((eq 'REx-part2 (elt i 0)) ;; [self start] start of /REP in s//REP/x
+ (goto-char (elt i 1))
+ (condition-case nil ; Use indentation of the 1st part
+ (forward-sexp -1))
+ (current-column))
+ ((eq 'indentable (elt i 0)) ; Indenter for REGEXP qw() etc
+ (cond ;;; [indentable terminator start-pos is-block]
+ ((eq 'terminator (elt i 1)) ; Lone terminator of "indentable string"
+ (goto-char (elt i 2)) ; After opening parens
+ (1- (current-column)))
+ ((eq 'first-line (elt i 1)); [indentable first-line start-pos]
+ (goto-char (elt i 2))
+ (+ (or cperl-regexp-indent-step cperl-indent-level)
+ -1
+ (current-column)))
+ ((eq 'cont-line (elt i 1)); [indentable cont-line pos prev-pos first-char start-pos]
+ ;; Indent as the level after closing parens
+ (goto-char (elt i 2)) ; indent line
+ (skip-chars-forward " \t)") ; Skip closing parens
+ (setq p (point))
+ (goto-char (elt i 3)) ; previous line
+ (skip-chars-forward " \t)") ; Skip closing parens
+ ;; Number of parens in between:
+ (setq p (nth 0 (parse-partial-sexp (point) p))
+ what (elt i 4)) ; First char on current line
+ (goto-char (elt i 3)) ; previous line
+ (+ (* p (or cperl-regexp-indent-step cperl-indent-level))
+ (cond ((eq what ?\) )
+ (- cperl-close-paren-offset)) ; compensate
+ ((eq what ?\| )
+ (- (or cperl-regexp-indent-step cperl-indent-level)))
+ (t 0))
+ (if (eq (following-char) ?\| )
+ (or cperl-regexp-indent-step cperl-indent-level)
+ 0)
+ (current-column)))
+ (t
+ (error "Unrecognized value of indent: " i))))
+ ;;
+ ;; Indenter for stuff at toplevel
+ ;;
+ ((eq 'toplevel (elt i 0)) ;; [toplevel start char-after state immed-after-block]
+ (+ (save-excursion ; To beg-of-defun, or end of last sexp
+ (goto-char (elt i 1)) ; start = Good place to start parsing
+ (- (current-indentation) ;
+ (if (elt i 4) cperl-indent-level 0))) ; immed-after-block
+ (if (eq (elt i 2) ?{) cperl-continued-brace-offset 0) ; char-after
+ ;; Look at previous line that's at column 0
+ ;; to determine whether we are in top-level decls
+ ;; or function's arg decls. Set basic-indent accordingly.
+ ;; Now add a little if this is a continuation line.
+ (if (elt i 3) ; state (XXX What is the semantic???)
+ 0
+ cperl-continued-statement-offset)))
+ ;;
+ ;; Indenter for stuff in "parentheses" (or brackets, braces-as-hash)
+ ;;
+ ((eq 'in-parens (elt i 0))
+ ;; in-parens char-after old-indent-point is-brace containing-sexp
+
+ ;; group is an expression, not a block:
+ ;; indent to just after the surrounding open parens,
+ ;; skip blanks if we do not close the expression.
+ (+ (progn
+ (goto-char (elt i 2)) ; old-indent-point
+ (current-column))
+ (if (and (elt i 3) ; is-brace
+ (eq (elt i 1) ?\})) ; char-after
+ ;; Correct indentation of trailing ?\}
+ (+ cperl-indent-level cperl-close-paren-offset)
+ 0)))
+ ;;
+ ;; Indenter for continuation lines
+ ;;
+ ((eq 'continuation (elt i 0))
+ ;; [continuation statement-start char-after is-block is-brace]
+ (goto-char (elt i 1)) ; statement-start
+ (+ (if (memq (elt i 2) (append "}])" nil)) ; char-after
+ 0 ; Closing parenth
+ cperl-continued-statement-offset)
+ (if (or (elt i 3) ; is-block
+ (not (elt i 4)) ; is-brace
+ (not (eq (elt i 2) ?\}))) ; char-after
+ 0
+ ;; Now it is a hash reference
+ (+ cperl-indent-level cperl-close-paren-offset))
+ ;; Labels do not take :: ...
+ (if (looking-at "\\(\\w\\|_\\)+[ \t]*:")
+ (if (> (current-indentation) cperl-min-label-indent)
+ (- (current-indentation) cperl-label-offset)
+ ;; Do not move `parse-data', this should
+ ;; be quick anyway (this comment comes
+ ;; from different location):
+ (cperl-calculate-indent))
+ (current-column))
+ (if (eq (elt i 2) ?\{) ; char-after
+ cperl-continued-brace-offset 0)))
+ ;;
+ ;; Indenter for lines in a block which are not leading lines
+ ;;
+ ((eq 'have-prev-sibling (elt i 0))
+ ;; [have-prev-sibling sibling-beg colon-line-end block-start]
+ (goto-char (elt i 1)) ; sibling-beg
+ (if (> (elt i 2) (point)) ; colon-line-end; have label before point
+ (if (> (current-indentation)
+ cperl-min-label-indent)
+ (- (current-indentation) cperl-label-offset)
+ ;; Do not believe: `max' was involved in calculation of indent
+ (+ cperl-indent-level
+ (save-excursion
+ (goto-char (elt i 3)) ; block-start
+ (current-indentation))))
+ (current-column)))
+ ;;
+ ;; Indenter for the first line in a block
+ ;;
+ ((eq 'code-start-in-block (elt i 0))
+ ;;[code-start-in-block before-brace char-after
+ ;; is-a-HASH-ref brace-is-first-thing-on-a-line
+ ;; group-starts-before-start-of-sub start-of-control-group]
+ (goto-char (elt i 1))
+ ;; For open brace in column zero, don't let statement
+ ;; start there too. If cperl-indent-level=0,
+ ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
+ (+ (if (and (bolp) (zerop cperl-indent-level))
+ (+ cperl-brace-offset cperl-continued-statement-offset)
+ cperl-indent-level)
+ (if (and (elt i 3) ; is-a-HASH-ref
+ (eq (elt i 2) ?\})) ; char-after: End of a hash reference
+ (+ cperl-indent-level cperl-close-paren-offset)
+ 0)
+ ;; Unless openbrace is the first nonwhite thing on the line,
+ ;; add the cperl-brace-imaginary-offset.
+ (if (elt i 4) 0 ; brace-is-first-thing-on-a-line
+ cperl-brace-imaginary-offset)
+ (progn
+ (goto-char (elt i 6)) ; start-of-control-group
+ (if (elt i 5) ; group-starts-before-start-of-sub
+ (current-column)
+ ;; Get initial indentation of the line we are on.
+ ;; If line starts with label, calculate label indentation
+ (if (save-excursion
+ (beginning-of-line)
+ (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
+ (if (> (current-indentation) cperl-min-label-indent)
+ (- (current-indentation) cperl-label-offset)
+ ;; Do not move `parse-data', this should
+ ;; be quick anyway:
+ (cperl-calculate-indent))
+ (current-indentation))))))
+ (t
+ (error "Unrecognized value of indent: " i))))
+ (t
+ (error (format "Got strange value of indent: " i)))))))
(defun cperl-calculate-indent-within-comment ()
"Return the indentation amount for line, assuming that
(defun cperl-to-comment-or-eol ()
- "Goes to position before comment on the current line, or to end of line.
-Returns true if comment is found."
- (let (state stop-in cpoint (lim (progn (end-of-line) (point))))
- (beginning-of-line)
- (if (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t)
- (if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
- ;; Else
- (while (not stop-in)
- (setq state (parse-partial-sexp (point) lim nil nil nil t))
+ "Go to position before comment on the current line, or to end of line.
+Returns true if comment is found. In POD will not move the point."
+ ;; If the line is inside other syntax groups (qq-style strings, HERE-docs)
+ ;; then looks for literal # or end-of-line.
+ (let (state stop-in cpoint (lim (progn (end-of-line) (point))) pr e)
+ (or cperl-font-locking
+ (cperl-update-syntaxification lim lim))
+ (beginning-of-line)
+ (if (setq pr (get-text-property (point) 'syntax-type))
+ (setq e (next-single-property-change (point) 'syntax-type nil (point-max))))
+ (if (or (eq pr 'pod)
+ (if (or (not e) (> e lim)) ; deep inside a group
+ (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t)))
+ (if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
+ ;; Else - need to do it the hard way
+ (and (and e (<= e lim))
+ (goto-char e))
+ (while (not stop-in)
+ (setq state (parse-partial-sexp (point) lim nil nil nil t))
; stop at comment
- ;; If fails (beginning-of-line inside sexp), then contains not-comment
- ;; Do simplified processing
- ;;(if (re-search-forward "[^$]#" lim 1)
- ;; (progn
- ;; (forward-char -1)
- ;; (skip-chars-backward " \t\n\f" lim))
- ;; (goto-char lim)) ; No `#' at all
- ;;)
- (if (nth 4 state) ; After `#';
+ ;; If fails (beginning-of-line inside sexp), then contains not-comment
+ (if (nth 4 state) ; After `#';
; (nth 2 state) can be
; beginning of m,s,qq and so
; on
- (if (nth 2 state)
- (progn
- (setq cpoint (point))
- (goto-char (nth 2 state))
- (cond
- ((looking-at "\\(s\\|tr\\)\\>")
- (or (re-search-forward
- "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*"
- lim 'move)
- (setq stop-in t)))
- ((looking-at "\\(m\\|q\\([qxw]\\)?\\)\\>")
- (or (re-search-forward
- "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#"
- lim 'move)
- (setq stop-in t)))
- (t ; It was fair comment
- (setq stop-in t) ; Finish
- (goto-char (1- cpoint)))))
- (setq stop-in t) ; Finish
- (forward-char -1))
- (setq stop-in t)) ; Finish
- )
- (nth 4 state))))
-
-(defun cperl-find-pods-heres (&optional min max)
- "Scans the buffer for POD sections and here-documents.
-If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
-the sections using `cperl-pod-head-face', `cperl-pod-face',
+ (if (nth 2 state)
+ (progn
+ (setq cpoint (point))
+ (goto-char (nth 2 state))
+ (cond
+ ((looking-at "\\(s\\|tr\\)\\>")
+ (or (re-search-forward
+ "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*"
+ lim 'move)
+ (setq stop-in t)))
+ ((looking-at "\\(m\\|q\\([qxwr]\\)?\\)\\>")
+ (or (re-search-forward
+ "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#"
+ lim 'move)
+ (setq stop-in t)))
+ (t ; It was fair comment
+ (setq stop-in t) ; Finish
+ (goto-char (1- cpoint)))))
+ (setq stop-in t) ; Finish
+ (forward-char -1))
+ (setq stop-in t))) ; Finish
+ (nth 4 state))))
+
+(defsubst cperl-modify-syntax-type (at how)
+ (if (< at (point-max))
+ (progn
+ (put-text-property at (1+ at) 'syntax-table how)
+ (put-text-property at (1+ at) 'rear-nonsticky '(syntax-table)))))
+
+(defun cperl-protect-defun-start (s e)
+ ;; C code looks for "^\\s(" to skip comment backward in "hard" situations
+ (save-excursion
+ (goto-char s)
+ (while (re-search-forward "^\\s(" e 'to-end)
+ (put-text-property (1- (point)) (point) 'syntax-table cperl-st-punct))))
+
+(defun cperl-commentify (bb e string &optional noface)
+ (if cperl-use-syntax-table-text-property
+ (if (eq noface 'n) ; Only immediate
+ nil
+ ;; We suppose that e is _after_ the end of construction, as after eol.
+ (setq string (if string cperl-st-sfence cperl-st-cfence))
+ (if (> bb (- e 2))
+ ;; one-char string/comment?!
+ (cperl-modify-syntax-type bb cperl-st-punct)
+ (cperl-modify-syntax-type bb string)
+ (cperl-modify-syntax-type (1- e) string))
+ (if (and (eq string cperl-st-sfence) (> (- e 2) bb))
+ (put-text-property (1+ bb) (1- e)
+ 'syntax-table cperl-string-syntax-table))
+ (cperl-protect-defun-start bb e))
+ ;; Fontify
+ (or noface
+ (not cperl-pod-here-fontify)
+ (put-text-property bb e 'face (if string 'font-lock-string-face
+ 'font-lock-comment-face)))))
+
+(defvar cperl-starters '(( ?\( . ?\) )
+ ( ?\[ . ?\] )
+ ( ?\{ . ?\} )
+ ( ?\< . ?\> )))
+
+(defun cperl-cached-syntax-table (st)
+ "Get a syntax table cached in ST, or create and cache into ST a syntax table.
+All the entries of the syntax table are \".\", except for a backslash, which
+is quoting."
+ (if (car-safe st)
+ (car st)
+ (setcar st (make-syntax-table))
+ (setq st (car st))
+ (let ((i 0))
+ (while (< i 256)
+ (modify-syntax-entry i "." st)
+ (setq i (1+ i))))
+ (modify-syntax-entry ?\\ "\\" st)
+ st))
+
+(defun cperl-forward-re (lim end is-2arg st-l err-l argument
+ &optional ostart oend)
+"Find the end of a regular expression or a stringish construct (q[] etc).
+The point should be before the starting delimiter.
+
+Goes to LIM if none is found. If IS-2ARG is non-nil, assumes that it
+is s/// or tr/// like expression. If END is nil, generates an error
+message if needed. If SET-ST is non-nil, will use (or generate) a
+cached syntax table in ST-L. If ERR-L is non-nil, will store the
+error message in its CAR (unless it already contains some error
+message). ARGUMENT should be the name of the construct (used in error
+messages). OSTART, OEND may be set in recursive calls when processing
+the second argument of 2ARG construct.
+
+Works *before* syntax recognition is done. In IS-2ARG situation may
+modify syntax-type text property if the situation is too hard."
+ (let (b starter ender st i i2 go-forward reset-st set-st)
+ (skip-chars-forward " \t")
+ ;; ender means matching-char matcher.
+ (setq b (point)
+ starter (if (eobp) 0 (char-after b))
+ ender (cdr (assoc starter cperl-starters)))
+ ;; What if starter == ?\\ ????
+ (setq st (cperl-cached-syntax-table st-l))
+ (setq set-st t)
+ ;; Whether we have an intermediate point
+ (setq i nil)
+ ;; Prepare the syntax table:
+ (if (not ender) ; m/blah/, s/x//, s/x/y/
+ (modify-syntax-entry starter "$" st)
+ (modify-syntax-entry starter (concat "(" (list ender)) st)
+ (modify-syntax-entry ender (concat ")" (list starter)) st))
+ (condition-case bb
+ (progn
+ ;; We use `$' syntax class to find matching stuff, but $$
+ ;; is recognized the same as $, so we need to check this manually.
+ (if (and (eq starter (char-after (cperl-1+ b)))
+ (not ender))
+ ;; $ has TeXish matching rules, so $$ equiv $...
+ (forward-char 2)
+ (setq reset-st (syntax-table))
+ (set-syntax-table st)
+ (forward-sexp 1)
+ (if (<= (point) (1+ b))
+ (error "Unfinished regular expression"))
+ (set-syntax-table reset-st)
+ (setq reset-st nil)
+ ;; Now the problem is with m;blah;;
+ (and (not ender)
+ (eq (preceding-char)
+ (char-after (- (point) 2)))
+ (save-excursion
+ (forward-char -2)
+ (= 0 (% (skip-chars-backward "\\\\") 2)))
+ (forward-char -1)))
+ ;; Now we are after the first part.
+ (and is-2arg ; Have trailing part
+ (not ender)
+ (eq (following-char) starter) ; Empty trailing part
+ (progn
+ (or (eq (char-syntax (following-char)) ?.)
+ ;; Make trailing letter into punctuation
+ (cperl-modify-syntax-type (point) cperl-st-punct))
+ (setq is-2arg nil go-forward t))) ; Ignore the tail
+ (if is-2arg ; Not number => have second part
+ (progn
+ (setq i (point) i2 i)
+ (if ender
+ (if (memq (following-char) '(?\ ?\t ?\n ?\f))
+ (progn
+ (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
+ (goto-char (match-end 0))
+ (skip-chars-forward " \t\n\f"))
+ (setq i2 (point))))
+ (forward-char -1))
+ (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
+ (if ender (modify-syntax-entry ender "." st))
+ (setq set-st nil)
+ (setq ender (cperl-forward-re lim end nil st-l err-l
+ argument starter ender)
+ ender (nth 2 ender)))))
+ (error (goto-char lim)
+ (setq set-st nil)
+ (if reset-st
+ (set-syntax-table reset-st))
+ (or end
+ (message
+ "End of `%s%s%c ... %c' string/RE not found: %s"
+ argument
+ (if ostart (format "%c ... %c" ostart (or oend ostart)) "")
+ starter (or ender starter) bb)
+ (or (car err-l) (setcar err-l b)))))
+ (if set-st
+ (progn
+ (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
+ (if ender (modify-syntax-entry ender "." st))))
+ ;; i: have 2 args, after end of the first arg
+ ;; i2: start of the second arg, if any (before delim iff `ender').
+ ;; ender: the last arg bounded by parens-like chars, the second one of them
+ ;; starter: the starting delimiter of the first arg
+ ;; go-forward: has 2 args, and the second part is empty
+ (list i i2 ender starter go-forward)))
+
+(defun cperl-forward-group-in-re (&optional st-l)
+ "Find the end of a group in a REx.
+Return the error message (if any). Does not work if delimiter is `)'.
+Works before syntax recognition is done."
+ ;; Works *before* syntax recognition is done
+ (or st-l (setq st-l (list nil))) ; Avoid overwriting '()
+ (let (st b reset-st)
+ (condition-case b
+ (progn
+ (setq st (cperl-cached-syntax-table st-l))
+ (modify-syntax-entry ?\( "()" st)
+ (modify-syntax-entry ?\) ")(" st)
+ (setq reset-st (syntax-table))
+ (set-syntax-table st)
+ (forward-sexp 1))
+ (error (message
+ "cperl-forward-group-in-re: error %s" b)))
+ ;; now restore the initial state
+ (if st
+ (progn
+ (modify-syntax-entry ?\( "." st)
+ (modify-syntax-entry ?\) "." st)))
+ (if reset-st
+ (set-syntax-table reset-st))
+ b))
+
+
+(defvar font-lock-string-face)
+;;(defvar font-lock-reference-face)
+(defvar font-lock-constant-face)
+(defsubst cperl-postpone-fontification (b e type val &optional now)
+ ;; Do after syntactic fontification?
+ (if cperl-syntaxify-by-font-lock
+ (or now (put-text-property b e 'cperl-postpone (cons type val)))
+ (put-text-property b e type val)))
+
+;;; Here is how the global structures (those which cannot be
+;;; recognized locally) are marked:
+;; a) PODs:
+;; Start-to-end is marked `in-pod' ==> t
+;; Each non-literal part is marked `syntax-type' ==> `pod'
+;; Each literal part is marked `syntax-type' ==> `in-pod'
+;; b) HEREs:
+;; Start-to-end is marked `here-doc-group' ==> t
+;; The body is marked `syntax-type' ==> `here-doc'
+;; The delimiter is marked `syntax-type' ==> `here-doc-delim'
+;; c) FORMATs:
+;; First line (to =) marked `first-format-line' ==> t
+;; After-this--to-end is marked `syntax-type' ==> `format'
+;; d) 'Q'uoted string:
+;; part between markers inclusive is marked `syntax-type' ==> `string'
+;; part between `q' and the first marker is marked `syntax-type' ==> `prestring'
+;; second part of s///e is marked `syntax-type' ==> `multiline'
+;; e) Attributes of subroutines: `attrib-group' ==> t
+;; (or 0 if declaration); up to `{' or ';': `syntax-type' => `sub-decl'.
+;; f) Multiline my/our declaration lists etc: `syntax-type' => `multiline'
+
+;;; In addition, some parts of RExes may be marked as `REx-interpolated'
+;;; (value: 0 in //o, 1 if "interpolated variable" is whole-REx, t otherwise).
+
+(defun cperl-unwind-to-safe (before &optional end)
+ ;; if BEFORE, go to the previous start-of-line on each step of unwinding
+ (let ((pos (point)) opos)
+ (while (and pos (progn
+ (beginning-of-line)
+ (get-text-property (setq pos (point)) 'syntax-type)))
+ (setq opos pos
+ pos (cperl-beginning-of-property pos 'syntax-type))
+ (if (eq pos (point-min))
+ (setq pos nil))
+ (if pos
+ (if before
+ (progn
+ (goto-char (cperl-1- pos))
+ (beginning-of-line)
+ (setq pos (point)))
+ (goto-char (setq pos (cperl-1- pos))))
+ ;; Up to the start
+ (goto-char (point-min))))
+ ;; Skip empty lines
+ (and (looking-at "\n*=")
+ (/= 0 (skip-chars-backward "\n"))
+ (forward-char))
+ (setq pos (point))
+ (if end
+ ;; Do the same for end, going small steps
+ (save-excursion
+ (while (and end (get-text-property end 'syntax-type))
+ (setq pos end
+ end (next-single-property-change end 'syntax-type nil (point-max)))
+ (if end (progn (goto-char end)
+ (or (bolp) (forward-line 1))
+ (setq end (point)))))
+ (or end pos)))))
+
+;;; These are needed for byte-compile (at least with v19)
+(defvar cperl-nonoverridable-face)
+(defvar font-lock-variable-name-face)
+(defvar font-lock-function-name-face)
+(defvar font-lock-keyword-face)
+(defvar font-lock-builtin-face)
+(defvar font-lock-type-face)
+(defvar font-lock-comment-face)
+(defvar font-lock-warning-face)
+
+(defun cperl-find-sub-attrs (&optional st-l b-fname e-fname pos)
+ "Syntaxically mark (and fontify) attributes of a subroutine.
+Should be called with the point before leading colon of an attribute."
+ ;; Works *before* syntax recognition is done
+ (or st-l (setq st-l (list nil))) ; Avoid overwriting '()
+ (let (st b p reset-st after-first (start (point)) start1 end1)
+ (condition-case b
+ (while (looking-at
+ (concat
+ "\\(" ; 1=optional? colon
+ ":" cperl-maybe-white-and-comment-rex ; 2=whitespace/comment?
+ "\\)"
+ (if after-first "?" "")
+ ;; No space between name and paren allowed...
+ "\\(\\sw+\\)" ; 3=name
+ "\\((\\)?")) ; 4=optional paren
+ (and (match-beginning 1)
+ (cperl-postpone-fontification
+ (match-beginning 0) (cperl-1+ (match-beginning 0))
+ 'face font-lock-constant-face))
+ (setq start1 (match-beginning 3) end1 (match-end 3))
+ (cperl-postpone-fontification start1 end1
+ 'face font-lock-constant-face)
+ (goto-char end1) ; end or before `('
+ (if (match-end 4) ; Have attribute arguments...
+ (progn
+ (if st nil
+ (setq st (cperl-cached-syntax-table st-l))
+ (modify-syntax-entry ?\( "()" st)
+ (modify-syntax-entry ?\) ")(" st))
+ (setq reset-st (syntax-table) p (point))
+ (set-syntax-table st)
+ (forward-sexp 1)
+ (set-syntax-table reset-st)
+ (setq reset-st nil)
+ (cperl-commentify p (point) t))) ; mark as string
+ (forward-comment (buffer-size))
+ (setq after-first t))
+ (error (message
+ "L%d: attribute `%s': %s"
+ (count-lines (point-min) (point))
+ (and start1 end1 (buffer-substring start1 end1)) b)
+ (setq start nil)))
+ (and start
+ (progn
+ (put-text-property start (point)
+ 'attrib-group (if (looking-at "{") t 0))
+ (and pos
+ (< 1 (count-lines (+ 3 pos) (point))) ; end of `sub'
+ ;; Apparently, we do not need `multiline': faces added now
+ (put-text-property (+ 3 pos) (cperl-1+ (point))
+ 'syntax-type 'sub-decl))
+ (and b-fname ; Fontify here: the following condition
+ (cperl-postpone-fontification ; is too hard to determine by
+ b-fname e-fname 'face ; a REx, so do it here
+ (if (looking-at "{")
+ font-lock-function-name-face
+ font-lock-variable-name-face)))))
+ ;; now restore the initial state
+ (if st
+ (progn
+ (modify-syntax-entry ?\( "." st)
+ (modify-syntax-entry ?\) "." st)))
+ (if reset-st
+ (set-syntax-table reset-st))))
+
+(defsubst cperl-look-at-leading-count (is-x-REx e)
+ (if (and
+ (< (point) e)
+ (re-search-forward (concat "\\=" (if is-x-REx "[ \t\n]*" "") "[{?+*]")
+ (1- e) t)) ; return nil on failure, no moving
+ (if (eq ?\{ (preceding-char)) nil
+ (cperl-postpone-fontification
+ (1- (point)) (point)
+ 'face font-lock-warning-face))))
+
+;;; Debugging this may require (setq max-specpdl-size 2000)...
+(defun cperl-find-pods-heres (&optional min max non-inter end ignore-max end-of-here-doc)
+ "Scans the buffer for hard-to-parse Perl constructions.
+If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
+the sections using `cperl-pod-head-face', `cperl-pod-face',
`cperl-here-face'."
(interactive)
- (or min (setq min (point-min)))
+ (or min (setq min (point-min)
+ cperl-syntax-state nil
+ cperl-syntax-done-to min))
(or max (setq max (point-max)))
- (let (face head-face here-face b e bb tag qtag err b1 e1 argument
- (cperl-pod-here-fontify (eval cperl-pod-here-fontify))
- (case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
- (modified (buffer-modified-p))
- (after-change-functions nil)
- (search
- (concat
- "\\(\\`\n?\\|\n\n\\)="
- "\\|"
- ;; One extra () before this:
- "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\3\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)[^=]\\)" ; [^=] to avoid <<=.
- "\\|"
- ;; 1+5 extra () before this:
- "^[ \t]*format[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$")))
+ (let* ((cperl-pod-here-fontify (eval cperl-pod-here-fontify)) go tmpend
+ face head-face here-face b e bb tag qtag b1 e1 argument i c tail tb
+ is-REx is-x-REx REx-subgr-start REx-subgr-end was-subgr i2 hairy-RE
+ (case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
+ (modified (buffer-modified-p)) overshoot is-o-REx
+ (after-change-functions nil)
+ (cperl-font-locking t)
+ (use-syntax-state (and cperl-syntax-state
+ (>= min (car cperl-syntax-state))))
+ (state-point (if use-syntax-state
+ (car cperl-syntax-state)
+ (point-min)))
+ (state (if use-syntax-state
+ (cdr cperl-syntax-state)))
+ ;; (st-l '(nil)) (err-l '(nil)) ; Would overwrite - propagates from a function call to a function call!
+ (st-l (list nil)) (err-l (list nil))
+ ;; Somehow font-lock may be not loaded yet...
+ ;; (e.g., when building TAGS via command-line call)
+ (font-lock-string-face (if (boundp 'font-lock-string-face)
+ font-lock-string-face
+ 'font-lock-string-face))
+ (my-cperl-delimiters-face (if (boundp 'font-lock-constant-face)
+ font-lock-constant-face
+ 'font-lock-constant-face))
+ (my-cperl-REx-spec-char-face ; [] ^.$ and wrapper-of ({})
+ (if (boundp 'font-lock-function-name-face)
+ font-lock-function-name-face
+ 'font-lock-function-name-face))
+ (font-lock-variable-name-face ; interpolated vars and ({})-code
+ (if (boundp 'font-lock-variable-name-face)
+ font-lock-variable-name-face
+ 'font-lock-variable-name-face))
+ (font-lock-function-name-face ; used in `cperl-find-sub-attrs'
+ (if (boundp 'font-lock-function-name-face)
+ font-lock-function-name-face
+ 'font-lock-function-name-face))
+ (font-lock-constant-face ; used in `cperl-find-sub-attrs'
+ (if (boundp 'font-lock-constant-face)
+ font-lock-constant-face
+ 'font-lock-constant-face))
+ (my-cperl-REx-0length-face ; 0-length, (?:)etc, non-literal \
+ (if (boundp 'font-lock-builtin-face)
+ font-lock-builtin-face
+ 'font-lock-builtin-face))
+ (font-lock-comment-face
+ (if (boundp 'font-lock-comment-face)
+ font-lock-comment-face
+ 'font-lock-comment-face))
+ (font-lock-warning-face
+ (if (boundp 'font-lock-warning-face)
+ font-lock-warning-face
+ 'font-lock-warning-face))
+ (my-cperl-REx-ctl-face ; (|)
+ (if (boundp 'font-lock-keyword-face)
+ font-lock-keyword-face
+ 'font-lock-keyword-face))
+ (my-cperl-REx-modifiers-face ; //gims
+ (if (boundp 'cperl-nonoverridable-face)
+ cperl-nonoverridable-face
+ 'cperl-nonoverridable-face))
+ (my-cperl-REx-length1-face ; length=1 escaped chars, POSIX classes
+ (if (boundp 'font-lock-type-face)
+ font-lock-type-face
+ 'font-lock-type-face))
+ (stop-point (if ignore-max
+ (point-max)
+ max))
+ (search
+ (concat
+ "\\(\\`\n?\\|^\n\\)=" ; POD
+ "\\|"
+ ;; One extra () before this:
+ "<<" ; HERE-DOC
+ "\\(" ; 1 + 1
+ ;; First variant "BLAH" or just ``.
+ "[ \t]*" ; Yes, whitespace is allowed!
+ "\\([\"'`]\\)" ; 2 + 1 = 3
+ "\\([^\"'`\n]*\\)" ; 3 + 1
+ "\\3"
+ "\\|"
+ ;; Second variant: Identifier or \ID (same as 'ID') or empty
+ "\\\\?\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)" ; 4 + 1, 5 + 1
+ ;; Do not have <<= or << 30 or <<30 or << $blah.
+ ;; "\\([^= \t0-9$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)" ; 6 + 1
+ "\\(\\)" ; To preserve count of pars :-( 6 + 1
+ "\\)"
+ "\\|"
+ ;; 1+6 extra () before this:
+ "^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$" ;FRMAT
+ (if cperl-use-syntax-table-text-property
+ (concat
+ "\\|"
+ ;; 1+6+2=9 extra () before this:
+ "\\<\\(q[wxqr]?\\|[msy]\\|tr\\)\\>" ; QUOTED CONSTRUCT
+ "\\|"
+ ;; 1+6+2+1=10 extra () before this:
+ "\\([?/<]\\)" ; /blah/ or ?blah? or <file*glob>
+ "\\|"
+ ;; 1+6+2+1+1=11 extra () before this
+ "\\<sub\\>" ; sub with proto/attr
+ "\\("
+ cperl-white-and-comment-rex
+ "\\(::[a-zA-Z_:'0-9]*\\|[a-zA-Z_'][a-zA-Z_:'0-9]*\\)\\)?" ; name
+ "\\("
+ cperl-maybe-white-and-comment-rex
+ "\\(([^()]*)\\|:[^:]\\)\\)" ; prototype or attribute start
+ "\\|"
+ ;; 1+6+2+1+1+6=17 extra () before this:
+ "\\$\\(['{]\\)" ; $' or ${foo}
+ "\\|"
+ ;; 1+6+2+1+1+6+1=18 extra () before this (old pack'var syntax;
+ ;; we do not support intervening comments...):
+ "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'"
+ ;; 1+6+2+1+1+6+1+1=19 extra () before this:
+ "\\|"
+ "__\\(END\\|DATA\\)__" ; __END__ or __DATA__
+ ;; 1+6+2+1+1+6+1+1+1=20 extra () before this:
+ "\\|"
+ "\\\\\\(['`\"($]\\)") ; BACKWACKED something-hairy
+ ""))))
(unwind-protect
(progn
(save-excursion
- (message "Scanning for pods, formats and here-docs...")
- (if cperl-pod-here-fontify
- ;; We had evals here, do not know why...
- (setq face cperl-pod-face
- head-face cperl-pod-head-face
- here-face cperl-here-face))
- (remove-text-properties min max '(syntax-type t))
+ (or non-inter
+ (message "Scanning for \"hard\" Perl constructions..."))
+ ;;(message "find: %s --> %s" min max)
+ (and cperl-pod-here-fontify
+ ;; We had evals here, do not know why...
+ (setq face cperl-pod-face
+ head-face cperl-pod-head-face
+ here-face cperl-here-face))
+ (remove-text-properties min max
+ '(syntax-type t in-pod t syntax-table t
+ attrib-group t
+ REx-interpolated t
+ cperl-postpone t
+ syntax-subtype t
+ rear-nonsticky t
+ front-sticky t
+ here-doc-group t
+ first-format-line t
+ REx-part2 t
+ indentable t))
;; Need to remove face as well...
(goto-char min)
- (while (re-search-forward search max t)
- (cond
- ((match-beginning 1) ; POD section
- ;; "\\(\\`\n?\\|\n\n\\)="
- (if (looking-at "\n*cut\\>")
+ (and (eq system-type 'emx)
+ (eq (point) 1)
+ (let ((case-fold-search t))
+ (looking-at "extproc[ \t]")) ; Analogue of #!
+ (cperl-commentify min
+ (save-excursion (end-of-line) (point))
+ nil))
+ (while (and
+ (< (point) max)
+ (re-search-forward search max t))
+ (setq tmpend nil) ; Valid for most cases
+ (setq b (match-beginning 0)
+ state (save-excursion (parse-partial-sexp
+ state-point b nil nil state))
+ state-point b)
+ (cond
+ ;; 1+6+2+1+1+6=17 extra () before this:
+ ;; "\\$\\(['{]\\)"
+ ((match-beginning 18) ; $' or ${foo}
+ (if (eq (preceding-char) ?\') ; $'
(progn
- (message "=cut is not preceeded by a pod section")
- (setq err (point)))
+ (setq b (1- (point))
+ state (parse-partial-sexp
+ state-point (1- b) nil nil state)
+ state-point (1- b))
+ (if (nth 3 state) ; in string
+ (cperl-modify-syntax-type (1- b) cperl-st-punct))
+ (goto-char (1+ b)))
+ ;; else: ${
+ (setq bb (match-beginning 0))
+ (cperl-modify-syntax-type bb cperl-st-punct)))
+ ;; No processing in strings/comments beyond this point:
+ ((or (nth 3 state) (nth 4 state))
+ t) ; Do nothing in comment/string
+ ((match-beginning 1) ; POD section
+ ;; "\\(\\`\n?\\|^\n\\)="
+ (setq b (match-beginning 0)
+ state (parse-partial-sexp
+ state-point b nil nil state)
+ state-point b)
+ (if (or (nth 3 state) (nth 4 state)
+ (looking-at "cut\\>"))
+ (if (or (nth 3 state) (nth 4 state) ignore-max)
+ nil ; Doing a chunk only
+ (message "=cut is not preceded by a POD section")
+ (or (car err-l) (setcar err-l (point))))
(beginning-of-line)
-
- (setq b (point) bb b)
- (or (re-search-forward "\n\n=cut\\>" max 'toend)
- (message "Cannot find the end of a pod section"))
- (beginning-of-line 3)
+
+ (setq b (point)
+ bb b
+ tb (match-beginning 0)
+ b1 nil) ; error condition
+ ;; We do not search to max, since we may be called from
+ ;; some hook of fontification, and max is random
+ (or (re-search-forward "^\n=cut\\>" stop-point 'toend)
+ (progn
+ (goto-char b)
+ (if (re-search-forward "\n=cut\\>" stop-point 'toend)
+ (progn
+ (message "=cut is not preceded by an empty line")
+ (setq b1 t)
+ (or (car err-l) (setcar err-l b))))))
+ (beginning-of-line 2) ; An empty line after =cut is not POD!
(setq e (point))
+ (and (> e max)
+ (progn
+ (remove-text-properties
+ max e '(syntax-type t in-pod t syntax-table t
+ attrib-group t
+ REx-interpolated t
+ cperl-postpone t
+ syntax-subtype t
+ here-doc-group t
+ rear-nonsticky t
+ front-sticky t
+ first-format-line t
+ REx-part2 t
+ indentable t))
+ (setq tmpend tb)))
(put-text-property b e 'in-pod t)
+ (put-text-property b e 'syntax-type 'in-pod)
(goto-char b)
(while (re-search-forward "\n\n[ \t]" e t)
+ ;; We start 'pod 1 char earlier to include the preceding line
(beginning-of-line)
- (put-text-property b (point) 'syntax-type 'pod)
- (cperl-put-do-not-fontify b (point))
- ;;(put-text-property (max (point-min) (1- b))
- ;; (point) cperl-do-not-fontify t)
- (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
+ (put-text-property (cperl-1- b) (point) 'syntax-type 'pod)
+ (cperl-put-do-not-fontify b (point) t)
+ ;; mark the non-literal parts as PODs
+ (if cperl-pod-here-fontify
+ (cperl-postpone-fontification b (point) 'face face t))
(re-search-forward "\n\n[^ \t\f\n]" e 'toend)
(beginning-of-line)
(setq b (point)))
- (put-text-property (point) e 'syntax-type 'pod)
- (cperl-put-do-not-fontify (point) e)
- ;;(put-text-property (max (point-min) (1- (point)))
- ;; e cperl-do-not-fontify t)
- (if cperl-pod-here-fontify
- (progn (put-text-property (point) e 'face face)
- (goto-char bb)
- (if (looking-at
- "=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
- (put-text-property
- (match-beginning 1) (match-end 1)
- 'face head-face))
- (while (re-search-forward
- ;; One paragraph
- "\n\n=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
- e 'toend)
- (put-text-property
- (match-beginning 1) (match-end 1)
- 'face head-face))))
- (goto-char e)))
+ (put-text-property (cperl-1- (point)) e 'syntax-type 'pod)
+ (cperl-put-do-not-fontify (point) e t)
+ (if cperl-pod-here-fontify
+ (progn
+ ;; mark the non-literal parts as PODs
+ (cperl-postpone-fontification (point) e 'face face t)
+ (goto-char bb)
+ (if (looking-at
+ "=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
+ ;; mark the headers
+ (cperl-postpone-fontification
+ (match-beginning 1) (match-end 1)
+ 'face head-face))
+ (while (re-search-forward
+ ;; One paragraph
+ "^\n=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
+ e 'toend)
+ ;; mark the headers
+ (cperl-postpone-fontification
+ (match-beginning 1) (match-end 1)
+ 'face head-face))))
+ (cperl-commentify bb e nil)
+ (goto-char e)
+ (or (eq e (point-max))
+ (forward-char -1)))) ; Prepare for immediate POD start.
;; Here document
- ;; 1 () ahead
- ;; "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\3\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)\\)"
+ ;; We can do many here-per-line;
+ ;; but multiline quote on the same line as <<HERE confuses us...
+ ;; ;; One extra () before this:
+ ;;"<<"
+ ;; "\\(" ; 1 + 1
+ ;; ;; First variant "BLAH" or just ``.
+ ;; "[ \t]*" ; Yes, whitespace is allowed!
+ ;; "\\([\"'`]\\)" ; 2 + 1
+ ;; "\\([^\"'`\n]*\\)" ; 3 + 1
+ ;; "\\3"
+ ;; "\\|"
+ ;; ;; Second variant: Identifier or \ID or empty
+ ;; "\\\\?\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)" ; 4 + 1, 5 + 1
+ ;; ;; Do not have <<= or << 30 or <<30 or << $blah.
+ ;; ;; "\\([^= \t0-9$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)" ; 6 + 1
+ ;; "\\(\\)" ; To preserve count of pars :-( 6 + 1
+ ;; "\\)"
((match-beginning 2) ; 1 + 1
- ;; Abort in comment (_extremely_ simplified):
- (setq b (point))
- (if (save-excursion
- (beginning-of-line)
- (search-forward "#" b t))
- nil
+ (setq b (point)
+ tb (match-beginning 0)
+ c (and ; not HERE-DOC
+ (match-beginning 5)
+ (save-match-data
+ (or (looking-at "[ \t]*(") ; << function_call()
+ (save-excursion ; 1 << func_name, or $foo << 10
+ (condition-case nil
+ (progn
+ (goto-char tb)
+ ;;; XXX What to do: foo <<bar ???
+ ;;; XXX Need to support print {a} <<B ???
+ (forward-sexp -1)
+ (save-match-data
+ ; $foo << b; $f .= <<B;
+ ; ($f+1) << b; a($f) . <<B;
+ ; foo 1, <<B; $x{a} <<b;
+ (cond
+ ((looking-at "[0-9$({]")
+ (forward-sexp 1)
+ (and
+ (looking-at "[ \t]*<<")
+ (condition-case nil
+ ;; print $foo <<EOF
+ (progn
+ (forward-sexp -2)
+ (not
+ (looking-at "\\(printf?\\|system\\|exec\\|sort\\)\\>")))
+ (error t)))))))
+ (error nil))) ; func(<<EOF)
+ (and (not (match-beginning 6)) ; Empty
+ (looking-at
+ "[ \t]*[=0-9$@%&(]"))))))
+ (if c ; Not here-doc
+ nil ; Skip it.
+ (setq c (match-end 2)) ; 1 + 1
(if (match-beginning 5) ;4 + 1
(setq b1 (match-beginning 5) ; 4 + 1
e1 (match-end 5)) ; 4 + 1
e1 (match-end 4))) ; 3 + 1
(setq tag (buffer-substring b1 e1)
qtag (regexp-quote tag))
- (cond (cperl-pod-here-fontify
- (put-text-property b1 e1 'face font-lock-reference-face)
- (cperl-put-do-not-fontify b1 e1)))
+ (cond (cperl-pod-here-fontify
+ ;; Highlight the starting delimiter
+ (cperl-postpone-fontification
+ b1 e1 'face my-cperl-delimiters-face)
+ (cperl-put-do-not-fontify b1 e1 t)))
(forward-line)
+ (setq i (point))
+ (if end-of-here-doc
+ (goto-char end-of-here-doc))
(setq b (point))
- (cond ((re-search-forward (concat "^" qtag "$") max 'toend)
- (if cperl-pod-here-fontify
- (progn
- (put-text-property (match-beginning 0) (match-end 0)
- 'face font-lock-reference-face)
- (cperl-put-do-not-fontify b (match-end 0))
- ;;(put-text-property (max (point-min) (1- b))
- ;; (min (point-max)
- ;; (1+ (match-end 0)))
- ;; cperl-do-not-fontify t)
- (put-text-property b (match-beginning 0)
- 'face here-face)))
- (put-text-property b (match-beginning 0)
- 'syntax-type 'here-doc)
- (cperl-put-do-not-fontify b (match-beginning 0)))
- (t (message "End of here-document `%s' not found." tag)))))
+ ;; We do not search to max, since we may be called from
+ ;; some hook of fontification, and max is random
+ (or (and (re-search-forward (concat "^" qtag "$")
+ stop-point 'toend)
+ ;;;(eq (following-char) ?\n) ; XXXX WHY???
+ )
+ (progn ; Pretend we matched at the end
+ (goto-char (point-max))
+ (re-search-forward "\\'")
+ (message "End of here-document `%s' not found." tag)
+ (or (car err-l) (setcar err-l b))))
+ (if cperl-pod-here-fontify
+ (progn
+ ;; Highlight the ending delimiter
+ (cperl-postpone-fontification
+ (match-beginning 0) (match-end 0)
+ 'face my-cperl-delimiters-face)
+ (cperl-put-do-not-fontify b (match-end 0) t)
+ ;; Highlight the HERE-DOC
+ (cperl-postpone-fontification b (match-beginning 0)
+ 'face here-face)))
+ (setq e1 (cperl-1+ (match-end 0)))
+ (put-text-property b (match-beginning 0)
+ 'syntax-type 'here-doc)
+ (put-text-property (match-beginning 0) e1
+ 'syntax-type 'here-doc-delim)
+ (put-text-property b e1 'here-doc-group t)
+ ;; This makes insertion at the start of HERE-DOC update
+ ;; the whole construct:
+ (put-text-property b (cperl-1+ b) 'front-sticky '(syntax-type))
+ (cperl-commentify b e1 nil)
+ (cperl-put-do-not-fontify b (match-end 0) t)
+ ;; Cache the syntax info...
+ (setq cperl-syntax-state (cons state-point state))
+ ;; ... and process the rest of the line...
+ (setq overshoot
+ (elt ; non-inter ignore-max
+ (cperl-find-pods-heres c i t end t e1) 1))
+ (if (and overshoot (> overshoot (point)))
+ (goto-char overshoot)
+ (setq overshoot e1))
+ (if (> e1 max)
+ (setq tmpend tb))))
;; format
- (t
- ;; 1+5=6 extra () before this:
- ;; "^[ \t]*format[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$")))
+ ((match-beginning 8)
+ ;; 1+6=7 extra () before this:
+ ;;"^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
(setq b (point)
- name (if (match-beginning 7) ; 6 + 1
- (buffer-substring (match-beginning 7) ; 6 + 1
- (match-end 7)) ; 6 + 1
- ""))
+ name (if (match-beginning 8) ; 7 + 1
+ (buffer-substring (match-beginning 8) ; 7 + 1
+ (match-end 8)) ; 7 + 1
+ "")
+ tb (match-beginning 0))
(setq argument nil)
- (if cperl-pod-here-fontify
+ (put-text-property (save-excursion
+ (beginning-of-line)
+ (point))
+ b 'first-format-line 't)
+ (if cperl-pod-here-fontify
(while (and (eq (forward-line) 0)
(not (looking-at "^[.;]$")))
(cond
((looking-at "^#")) ; Skip comments
((and argument ; Skip argument multi-lines
- (looking-at "^[ \t]*{"))
+ (looking-at "^[ \t]*{"))
(forward-sexp 1)
(setq argument nil))
(argument ; Skip argument lines
(setq b1 (point))
(setq argument (looking-at "^[^\n]*[@^]"))
(end-of-line)
- (put-text-property b1 (point)
- 'face font-lock-string-face)
- (cperl-put-do-not-fontify b1 (point)))))
- (re-search-forward (concat "^[.;]$") max 'toend))
+ ;; Highlight the format line
+ (cperl-postpone-fontification b1 (point)
+ 'face font-lock-string-face)
+ (cperl-commentify b1 (point) nil)
+ (cperl-put-do-not-fontify b1 (point) t))))
+ ;; We do not search to max, since we may be called from
+ ;; some hook of fontification, and max is random
+ (re-search-forward "^[.;]$" stop-point 'toend))
(beginning-of-line)
- (if (looking-at "^[.;]$")
+ (if (looking-at "^\\.$") ; ";" is not supported yet
(progn
- (put-text-property (point) (+ (point) 2)
- 'face font-lock-string-face)
- (cperl-put-do-not-fontify (point) (+ (point) 2)))
- (message "End of format `%s' not found." name))
+ ;; Highlight the ending delimiter
+ (cperl-postpone-fontification (point) (+ (point) 2)
+ 'face font-lock-string-face)
+ (cperl-commentify (point) (+ (point) 2) nil)
+ (cperl-put-do-not-fontify (point) (+ (point) 2) t))
+ (message "End of format `%s' not found." name)
+ (or (car err-l) (setcar err-l b)))
(forward-line)
- (put-text-property b (point) 'syntax-type 'format)
-;;; (cond ((re-search-forward (concat "^[.;]$") max 'toend)
-;;; (if cperl-pod-here-fontify
-;;; (progn
-;;; (put-text-property b (match-end 0)
-;;; 'face font-lock-string-face)
-;;; (cperl-put-do-not-fontify b (match-end 0))))
-;;; (put-text-property b (match-end 0)
-;;; 'syntax-type 'format)
-;;; (cperl-put-do-not-fontify b (match-beginning 0)))
-;;; (t (message "End of format `%s' not found." name)))
- )))
-;;; (while (re-search-forward "\\(\\`\n?\\|\n\n\\)=" max t)
-;;; (if (looking-at "\n*cut\\>")
-;;; (progn
-;;; (message "=cut is not preceeded by a pod section")
-;;; (setq err (point)))
-;;; (beginning-of-line)
-
-;;; (setq b (point) bb b)
-;;; (or (re-search-forward "\n\n=cut\\>" max 'toend)
-;;; (message "Cannot find the end of a pod section"))
-;;; (beginning-of-line 3)
-;;; (setq e (point))
-;;; (put-text-property b e 'in-pod t)
-;;; (goto-char b)
-;;; (while (re-search-forward "\n\n[ \t]" e t)
-;;; (beginning-of-line)
-;;; (put-text-property b (point) 'syntax-type 'pod)
-;;; (cperl-put-do-not-fontify b (point))
-;;; ;;(put-text-property (max (point-min) (1- b))
-;;; ;; (point) cperl-do-not-fontify t)
-;;; (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
-;;; (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
-;;; (beginning-of-line)
-;;; (setq b (point)))
-;;; (put-text-property (point) e 'syntax-type 'pod)
-;;; (cperl-put-do-not-fontify (point) e)
-;;; ;;(put-text-property (max (point-min) (1- (point)))
-;;; ;; e cperl-do-not-fontify t)
-;;; (if cperl-pod-here-fontify
-;;; (progn (put-text-property (point) e 'face face)
-;;; (goto-char bb)
-;;; (if (looking-at
-;;; "=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
-;;; (put-text-property
-;;; (match-beginning 1) (match-end 1)
-;;; 'face head-face))
-;;; (while (re-search-forward
-;;; ;; One paragraph
-;;; "\n\n=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
-;;; e 'toend)
-;;; (put-text-property
-;;; (match-beginning 1) (match-end 1)
-;;; 'face head-face))))
-;;; (goto-char e)))
-;;; (goto-char min)
-;;; (while (re-search-forward
-;;; ;; We exclude \n to avoid misrecognition inside quotes.
-;;; "<<\\(\\([\"'`]\\)\\([^\"'`\n]*\\)\\2\\|\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)\\)"
-;;; max t)
-;;; (if (match-beginning 4)
-;;; (setq b1 (match-beginning 4)
-;;; e1 (match-end 4))
-;;; (setq b1 (match-beginning 3)
-;;; e1 (match-end 3)))
-;;; (setq tag (buffer-substring b1 e1)
-;;; qtag (regexp-quote tag))
-;;; (cond (cperl-pod-here-fontify
-;;; (put-text-property b1 e1 'face font-lock-reference-face)
-;;; (cperl-put-do-not-fontify b1 e1)))
-;;; (forward-line)
-;;; (setq b (point))
-;;; (cond ((re-search-forward (concat "^" qtag "$") max 'toend)
-;;; (if cperl-pod-here-fontify
-;;; (progn
-;;; (put-text-property (match-beginning 0) (match-end 0)
-;;; 'face font-lock-reference-face)
-;;; (cperl-put-do-not-fontify b (match-end 0))
-;;; ;;(put-text-property (max (point-min) (1- b))
-;;; ;; (min (point-max)
-;;; ;; (1+ (match-end 0)))
-;;; ;; cperl-do-not-fontify t)
-;;; (put-text-property b (match-beginning 0)
-;;; 'face here-face)))
-;;; (put-text-property b (match-beginning 0)
-;;; 'syntax-type 'here-doc)
-;;; (cperl-put-do-not-fontify b (match-beginning 0)))
-;;; (t (message "End of here-document `%s' not found." tag))))
-;;; (goto-char min)
-;;; (while (re-search-forward
-;;; "^[ \t]*format[ \t]*\\(\\([a-zA-Z0-9_]+[ \t]*\\)?\\)=[ \t]*$"
-;;; max t)
-;;; (setq b (point)
-;;; name (buffer-substring (match-beginning 1)
-;;; (match-end 1)))
-;;; (cond ((re-search-forward (concat "^[.;]$") max 'toend)
-;;; (if cperl-pod-here-fontify
-;;; (progn
-;;; (put-text-property b (match-end 0)
-;;; 'face font-lock-string-face)
-;;; (cperl-put-do-not-fontify b (match-end 0))))
-;;; (put-text-property b (match-end 0)
-;;; 'syntax-type 'format)
-;;; (cperl-put-do-not-fontify b (match-beginning 0)))
-;;; (t (message "End of format `%s' not found." name))))
-)
- (if err (goto-char err)
- (message "Scan for pods, formats and here-docs completed.")))
+ (if (> (point) max)
+ (setq tmpend tb))
+ (put-text-property b (point) 'syntax-type 'format))
+ ;; qq-like String or Regexp:
+ ((or (match-beginning 10) (match-beginning 11))
+ ;; 1+6+2=9 extra () before this:
+ ;; "\\<\\(q[wxqr]?\\|[msy]\\|tr\\)\\>"
+ ;; "\\|"
+ ;; "\\([?/<]\\)" ; /blah/ or ?blah? or <file*glob>
+ (setq b1 (if (match-beginning 10) 10 11)
+ argument (buffer-substring
+ (match-beginning b1) (match-end b1))
+ b (point) ; end of qq etc
+ i b
+ c (char-after (match-beginning b1))
+ bb (char-after (1- (match-beginning b1))) ; tmp holder
+ ;; bb == "Not a stringy"
+ bb (if (eq b1 10) ; user variables/whatever
+ (and (memq bb (append "$@%*#_:-&>" nil)) ; $#y)
+ (cond ((eq bb ?-) (eq c ?s)) ; -s file test
+ ((eq bb ?\:) ; $opt::s
+ (eq (char-after
+ (- (match-beginning b1) 2))
+ ?\:))
+ ((eq bb ?\>) ; $foo->s
+ (eq (char-after
+ (- (match-beginning b1) 2))
+ ?\-))
+ ((eq bb ?\&)
+ (not (eq (char-after ; &&m/blah/
+ (- (match-beginning b1) 2))
+ ?\&)))
+ (t t)))
+ ;; <file> or <$file>
+ (and (eq c ?\<)
+ ;; Do not stringify <FH>, <$fh> :
+ (save-match-data
+ (looking-at
+ "\\$?\\([_a-zA-Z:][_a-zA-Z0-9:]*\\)?>"))))
+ tb (match-beginning 0))
+ (goto-char (match-beginning b1))
+ (cperl-backward-to-noncomment (point-min))
+ (or bb
+ (if (eq b1 11) ; bare /blah/ or ?blah? or <foo>
+ (setq argument ""
+ b1 nil
+ bb ; Not a regexp?
+ (not
+ ;; What is below: regexp-p?
+ (and
+ (or (memq (preceding-char)
+ (append (if (memq c '(?\? ?\<))
+ ;; $a++ ? 1 : 2
+ "~{(=|&*!,;:["
+ "~{(=|&+-*!,;:[") nil))
+ (and (eq (preceding-char) ?\})
+ (cperl-after-block-p (point-min)))
+ (and (eq (char-syntax (preceding-char)) ?w)
+ (progn
+ (forward-sexp -1)
+;;; After these keywords `/' starts a RE. One should add all the
+;;; functions/builtins which expect an argument, but ...
+ (if (eq (preceding-char) ?-)
+ ;; -d ?foo? is a RE
+ (looking-at "[a-zA-Z]\\>")
+ (and
+ (not (memq (preceding-char)
+ '(?$ ?@ ?& ?%)))
+ (looking-at
+ "\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>")))))
+ (and (eq (preceding-char) ?.)
+ (eq (char-after (- (point) 2)) ?.))
+ (bobp))
+ ;; m|blah| ? foo : bar;
+ (not
+ (and (eq c ?\?)
+ cperl-use-syntax-table-text-property
+ (not (bobp))
+ (progn
+ (forward-char -1)
+ (looking-at "\\s|"))))))
+ b (1- b))
+ ;; s y tr m
+ ;; Check for $a -> y
+ (setq b1 (preceding-char)
+ go (point))
+ (if (and (eq b1 ?>)
+ (eq (char-after (- go 2)) ?-))
+ ;; Not a regexp
+ (setq bb t))))
+ (or bb
+ (progn
+ (goto-char b)
+ (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
+ (goto-char (match-end 0))
+ (skip-chars-forward " \t\n\f"))
+ (cond ((and (eq (following-char) ?\})
+ (eq b1 ?\{))
+ ;; Check for $a[23]->{ s }, @{s} and *{s::foo}
+ (goto-char (1- go))
+ (skip-chars-backward " \t\n\f")
+ (if (memq (preceding-char) (append "$@%&*" nil))
+ (setq bb t) ; @{y}
+ (condition-case nil
+ (forward-sexp -1)
+ (error nil)))
+ (if (or bb
+ (looking-at ; $foo -> {s}
+ "[$@]\\$*\\([a-zA-Z0-9_:]+\\|[^{]\\)\\([ \t\n]*->\\)?[ \t\n]*{")
+ (and ; $foo[12] -> {s}
+ (memq (following-char) '(?\{ ?\[))
+ (progn
+ (forward-sexp 1)
+ (looking-at "\\([ \t\n]*->\\)?[ \t\n]*{"))))
+ (setq bb t)
+ (goto-char b)))
+ ((and (eq (following-char) ?=)
+ (eq (char-after (1+ (point))) ?\>))
+ ;; Check for { foo => 1, s => 2 }
+ ;; Apparently s=> is never a substitution...
+ (setq bb t))
+ ((and (eq (following-char) ?:)
+ (eq b1 ?\{) ; Check for $ { s::bar }
+ (looking-at "::[a-zA-Z0-9_:]*[ \t\n\f]*}")
+ (progn
+ (goto-char (1- go))
+ (skip-chars-backward " \t\n\f")
+ (memq (preceding-char)
+ (append "$@%&*" nil))))
+ (setq bb t))
+ ((eobp)
+ (setq bb t)))))
+ (if bb
+ (goto-char i)
+ ;; Skip whitespace and comments...
+ (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
+ (goto-char (match-end 0))
+ (skip-chars-forward " \t\n\f"))
+ (if (> (point) b)
+ (put-text-property b (point) 'syntax-type 'prestring))
+ ;; qtag means two-arg matcher, may be reset to
+ ;; 2 or 3 later if some special quoting is needed.
+ ;; e1 means matching-char matcher.
+ (setq b (point) ; before the first delimiter
+ ;; has 2 args
+ i2 (string-match "^\\([sy]\\|tr\\)$" argument)
+ ;; We do not search to max, since we may be called from
+ ;; some hook of fontification, and max is random
+ i (cperl-forward-re stop-point end
+ i2
+ st-l err-l argument)
+ ;; If `go', then it is considered as 1-arg, `b1' is nil
+ ;; as in s/foo//x; the point is before final "slash"
+ b1 (nth 1 i) ; start of the second part
+ tag (nth 2 i) ; ender-char, true if second part
+ ; is with matching chars []
+ go (nth 4 i) ; There is a 1-char part after the end
+ i (car i) ; intermediate point
+ e1 (point) ; end
+ ;; Before end of the second part if non-matching: ///
+ tail (if (and i (not tag))
+ (1- e1))
+ e (if i i e1) ; end of the first part
+ qtag nil ; need to preserve backslashitis
+ is-x-REx nil is-o-REx nil); REx has //x //o modifiers
+ ;; If s{} (), then b/b1 are at "{", "(", e1/i after ")", "}"
+ ;; Commenting \\ is dangerous, what about ( ?
+ (and i tail
+ (eq (char-after i) ?\\)
+ (setq qtag t))
+ (and (if go (looking-at ".\\sw*x")
+ (looking-at "\\sw*x")) ; qr//x
+ (setq is-x-REx t))
+ (and (if go (looking-at ".\\sw*o")
+ (looking-at "\\sw*o")) ; //o
+ (setq is-o-REx t))
+ (if (null i)
+ ;; Considered as 1arg form
+ (progn
+ (cperl-commentify b (point) t)
+ (put-text-property b (point) 'syntax-type 'string)
+ (if (or is-x-REx
+ ;; ignore other text properties:
+ (string-match "^qw$" argument))
+ (put-text-property b (point) 'indentable t))
+ (and go
+ (setq e1 (cperl-1+ e1))
+ (or (eobp)
+ (forward-char 1))))
+ (cperl-commentify b i t)
+ (if (looking-at "\\sw*e") ; s///e
+ (progn
+ ;; Cache the syntax info...
+ (setq cperl-syntax-state (cons state-point state))
+ (and
+ ;; silent:
+ (car (cperl-find-pods-heres b1 (1- (point)) t end))
+ ;; Error
+ (goto-char (1+ max)))
+ (if (and tag (eq (preceding-char) ?\>))
+ (progn
+ (cperl-modify-syntax-type (1- (point)) cperl-st-ket)
+ (cperl-modify-syntax-type i cperl-st-bra)))
+ (put-text-property b i 'syntax-type 'string)
+ (put-text-property i (point) 'syntax-type 'multiline)
+ (if is-x-REx
+ (put-text-property b i 'indentable t)))
+ (cperl-commentify b1 (point) t)
+ (put-text-property b (point) 'syntax-type 'string)
+ (if is-x-REx
+ (put-text-property b i 'indentable t))
+ (if qtag
+ (cperl-modify-syntax-type (1+ i) cperl-st-punct))
+ (setq tail nil)))
+ ;; Now: tail: if the second part is non-matching without ///e
+ (if (eq (char-syntax (following-char)) ?w)
+ (progn
+ (forward-word 1) ; skip modifiers s///s
+ (if tail (cperl-commentify tail (point) t))
+ (cperl-postpone-fontification
+ e1 (point) 'face my-cperl-REx-modifiers-face)))
+ ;; Check whether it is m// which means "previous match"
+ ;; and highlight differently
+ (setq is-REx
+ (and (string-match "^\\([sm]?\\|qr\\)$" argument)
+ (or (not (= (length argument) 0))
+ (not (eq c ?\<)))))
+ (if (and is-REx
+ (eq e (+ 2 b))
+ ;; split // *is* using zero-pattern
+ (save-excursion
+ (condition-case nil
+ (progn
+ (goto-char tb)
+ (forward-sexp -1)
+ (not (looking-at "split\\>")))
+ (error t))))
+ (cperl-postpone-fontification
+ b e 'face font-lock-warning-face)
+ (if (or i2 ; Has 2 args
+ (and cperl-fontify-m-as-s
+ (or
+ (string-match "^\\(m\\|qr\\)$" argument)
+ (and (eq 0 (length argument))
+ (not (eq ?\< (char-after b)))))))
+ (progn
+ (cperl-postpone-fontification
+ b (cperl-1+ b) 'face my-cperl-delimiters-face)
+ (cperl-postpone-fontification
+ (1- e) e 'face my-cperl-delimiters-face)))
+ (if (and is-REx cperl-regexp-scan)
+ ;; Process RExen: embedded comments, charclasses and ]
+;;;/\3333\xFg\x{FFF}a\ppp\PPP\qqq\C\99f(?{ foo })(??{ foo })/;
+;;;/a\.b[^a[:ff:]b]x$ab->$[|$,$ab->[cd]->[ef]|$ab[xy].|^${a,b}{c,d}/;
+;;;/(?<=foo)(?<!bar)(x)(?:$ab|\$\/)$|\\\b\x888\776\[\:$/xxx;
+;;;m?(\?\?{b,a})? + m/(??{aa})(?(?=xx)aa|bb)(?#aac)/;
+;;;m$(^ab[c]\$)$ + m+(^ab[c]\$\+)+ + m](^ab[c\]$|.+)] + m)(^ab[c]$|.+\));
+;;;m^a[\^b]c^ + m.a[^b]\.c.;
+ (save-excursion
+ (goto-char (1+ b))
+ ;; First
+ (cperl-look-at-leading-count is-x-REx e)
+ (setq hairy-RE
+ (concat
+ (if is-x-REx
+ (if (eq (char-after b) ?\#)
+ "\\((\\?\\\\#\\)\\|\\(\\\\#\\)"
+ "\\((\\?#\\)\\|\\(#\\)")
+ ;; keep the same count: add a fake group
+ (if (eq (char-after b) ?\#)
+ "\\((\\?\\\\#\\)\\(\\)"
+ "\\((\\?#\\)\\(\\)"))
+ "\\|"
+ "\\(\\[\\)" ; 3=[
+ "\\|"
+ "\\(]\\)" ; 4=]
+ "\\|"
+ ;; XXXX Will not be able to use it in s)))
+ (if (eq (char-after b) ?\) )
+ "\\())))\\)" ; Will never match
+ (if (eq (char-after b) ?? )
+ ;;"\\((\\\\\\?\\(\\\\\\?\\)?{\\)"
+ "\\((\\\\\\?\\\\\\?{\\|()\\\\\\?{\\)"
+ "\\((\\?\\??{\\)")) ; 5= (??{ (?{
+ "\\|" ; 6= 0-length, 7: name, 8,9:code, 10:group
+ "\\(" ;; XXXX 1-char variables, exc. |()\s
+ "[$@]"
+ "\\("
+ "[_a-zA-Z:][_a-zA-Z0-9:]*"
+ "\\|"
+ "{[^{}]*}" ; only one-level allowed
+ "\\|"
+ "[^{(|) \t\r\n\f]"
+ "\\)"
+ "\\(" ;;8,9:code part of array/hash elt
+ "\\(" "->" "\\)?"
+ "\\[[^][]*\\]"
+ "\\|"
+ "{[^{}]*}"
+ "\\)*"
+ ;; XXXX: what if u is delim?
+ "\\|"
+ "[)^|$.*?+]"
+ "\\|"
+ "{[0-9]+}"
+ "\\|"
+ "{[0-9]+,[0-9]*}"
+ "\\|"
+ "\\\\[luLUEQbBAzZG]"
+ "\\|"
+ "(" ; Group opener
+ "\\(" ; 10 group opener follower
+ "\\?\\((\\?\\)" ; 11: in (?(?=C)A|B)
+ "\\|"
+ "\\?[:=!>?{]" ; "?" something
+ "\\|"
+ "\\?[-imsx]+[:)]" ; (?i) (?-s:.)
+ "\\|"
+ "\\?([0-9]+)" ; (?(1)foo|bar)
+ "\\|"
+ "\\?<[=!]"
+ ;;;"\\|"
+ ;;; "\\?"
+ "\\)?"
+ "\\)"
+ "\\|"
+ "\\\\\\(.\\)" ; 12=\SYMBOL
+ ))
+ (while
+ (and (< (point) (1- e))
+ (re-search-forward hairy-RE (1- e) 'to-end))
+ (goto-char (match-beginning 0))
+ (setq REx-subgr-start (point)
+ was-subgr (following-char))
+ (cond
+ ((match-beginning 6) ; 0-length builtins, groups
+ (goto-char (match-end 0))
+ (if (match-beginning 11)
+ (goto-char (match-beginning 11)))
+ (if (>= (point) e)
+ (goto-char (1- e)))
+ (cperl-postpone-fontification
+ (match-beginning 0) (point)
+ 'face
+ (cond
+ ((eq was-subgr ?\) )
+ (condition-case nil
+ (save-excursion
+ (forward-sexp -1)
+ (if (> (point) b)
+ (if (if (eq (char-after b) ?? )
+ (looking-at "(\\\\\\?")
+ (eq (char-after (1+ (point))) ?\?))
+ my-cperl-REx-0length-face
+ my-cperl-REx-ctl-face)
+ font-lock-warning-face))
+ (error font-lock-warning-face)))
+ ((eq was-subgr ?\| )
+ my-cperl-REx-ctl-face)
+ ((eq was-subgr ?\$ )
+ (if (> (point) (1+ REx-subgr-start))
+ (progn
+ (put-text-property
+ (match-beginning 0) (point)
+ 'REx-interpolated
+ (if is-o-REx 0
+ (if (and (eq (match-beginning 0)
+ (1+ b))
+ (eq (point)
+ (1- e))) 1 t)))
+ font-lock-variable-name-face)
+ my-cperl-REx-spec-char-face))
+ ((memq was-subgr (append "^." nil) )
+ my-cperl-REx-spec-char-face)
+ ((eq was-subgr ?\( )
+ (if (not (match-beginning 10))
+ my-cperl-REx-ctl-face
+ my-cperl-REx-0length-face))
+ (t my-cperl-REx-0length-face)))
+ (if (and (memq was-subgr (append "(|" nil))
+ (not (string-match "(\\?[-imsx]+)"
+ (match-string 0))))
+ (cperl-look-at-leading-count is-x-REx e))
+ (setq was-subgr nil)) ; We do stuff here
+ ((match-beginning 12) ; \SYMBOL
+ (forward-char 2)
+ (if (>= (point) e)
+ (goto-char (1- e))
+ ;; How many chars to not highlight:
+ ;; 0-len special-alnums in other branch =>
+ ;; Generic: \non-alnum (1), \alnum (1+face)
+ ;; Is-delim: \non-alnum (1/spec-2) alnum-1 (=what hai)
+ (setq REx-subgr-start (point)
+ qtag (preceding-char))
+ (cperl-postpone-fontification
+ (- (point) 2) (- (point) 1) 'face
+ (if (memq qtag
+ (append "ghijkmoqvFHIJKMORTVY" nil))
+ font-lock-warning-face
+ my-cperl-REx-0length-face))
+ (if (and (eq (char-after b) qtag)
+ (memq qtag (append ".])^$|*?+" nil)))
+ (progn
+ (if (and cperl-use-syntax-table-text-property
+ (eq qtag ?\) ))
+ (put-text-property
+ REx-subgr-start (1- (point))
+ 'syntax-table cperl-st-punct))
+ (cperl-postpone-fontification
+ (1- (point)) (point) 'face
+ ; \] can't appear below
+ (if (memq qtag (append ".]^$" nil))
+ 'my-cperl-REx-spec-char-face
+ (if (memq qtag (append "*?+" nil))
+ 'my-cperl-REx-0length-face
+ 'my-cperl-REx-ctl-face))))) ; )|
+ ;; Test for arguments:
+ (cond
+ ;; This is not pretty: the 5.8.7 logic:
+ ;; \0numx -> octal (up to total 3 dig)
+ ;; \DIGIT -> backref unless \0
+ ;; \DIGITs -> backref if legal
+ ;; otherwise up to 3 -> octal
+ ;; Do not try to distinguish, we guess
+ ((or (and (memq qtag (append "01234567" nil))
+ (re-search-forward
+ "\\=[01234567]?[01234567]?"
+ (1- e) 'to-end))
+ (and (memq qtag (append "89" nil))
+ (re-search-forward
+ "\\=[0123456789]*" (1- e) 'to-end))
+ (and (eq qtag ?x)
+ (re-search-forward
+ "\\=[0-9a-fA-F][0-9a-fA-F]?\\|\\={[0-9a-fA-F]+}"
+ (1- e) 'to-end))
+ (and (memq qtag (append "pPN" nil))
+ (re-search-forward "\\={[^{}]+}\\|."
+ (1- e) 'to-end))
+ (eq (char-syntax qtag) ?w))
+ (cperl-postpone-fontification
+ (1- REx-subgr-start) (point)
+ 'face my-cperl-REx-length1-face))))
+ (setq was-subgr nil)) ; We do stuff here
+ ((match-beginning 3) ; [charclass]
+ (forward-char 1)
+ (if (eq (char-after b) ?^ )
+ (and (eq (following-char) ?\\ )
+ (eq (char-after (cperl-1+ (point)))
+ ?^ )
+ (forward-char 2))
+ (and (eq (following-char) ?^ )
+ (forward-char 1)))
+ (setq argument b ; continue?
+ tag nil ; list of POSIX classes
+ qtag (point))
+ (if (eq (char-after b) ?\] )
+ (and (eq (following-char) ?\\ )
+ (eq (char-after (cperl-1+ (point)))
+ ?\] )
+ (setq qtag (1+ qtag))
+ (forward-char 2))
+ (and (eq (following-char) ?\] )
+ (forward-char 1)))
+ ;; Apparently, I can't put \] into a charclass
+ ;; in m]]: m][\\\]\]] produces [\\]]
+;;; POSIX? [:word:] [:^word:] only inside []
+;;; "\\=\\(\\\\.\\|[^][\\\\]\\|\\[:\\^?\sw+:]\\|\\[[^:]\\)*]")
+ (while
+ (and argument
+ (re-search-forward
+ (if (eq (char-after b) ?\] )
+ "\\=\\(\\\\[^]]\\|[^]\\\\]\\)*\\\\]"
+ "\\=\\(\\\\.\\|[^]\\\\]\\)*]")
+ (1- e) 'toend))
+ ;; Is this ] an end of POSIX class?
+ (if (save-excursion
+ (and
+ (search-backward "[" argument t)
+ (< REx-subgr-start (point))
+ (not
+ (and ; Should work with delim = \
+ (eq (preceding-char) ?\\ )
+ (= (% (skip-chars-backward
+ "\\\\") 2) 0)))
+ (looking-at
+ (cond
+ ((eq (char-after b) ?\] )
+ "\\\\*\\[:\\^?\\sw+:\\\\\\]")
+ ((eq (char-after b) ?\: )
+ "\\\\*\\[\\\\:\\^?\\sw+\\\\:]")
+ ((eq (char-after b) ?^ )
+ "\\\\*\\[:\\(\\\\\\^\\)?\\sw+:\]")
+ ((eq (char-syntax (char-after b))
+ ?w)
+ (concat
+ "\\\\*\\[:\\(\\\\\\^\\)?\\(\\\\"
+ (char-to-string (char-after b))
+ "\\|\\sw\\)+:\]"))
+ (t "\\\\*\\[:\\^?\\sw*:]")))
+ (setq argument (point))))
+ (setq tag (cons (cons argument (point))
+ tag)
+ argument (point)) ; continue
+ (setq argument nil)))
+ (and argument
+ (message "Couldn't find end of charclass in a REx, pos=%s"
+ REx-subgr-start))
+ (if (and cperl-use-syntax-table-text-property
+ (> (- (point) 2) REx-subgr-start))
+ (put-text-property
+ (1+ REx-subgr-start) (1- (point))
+ 'syntax-table cperl-st-punct))
+ (cperl-postpone-fontification
+ REx-subgr-start qtag
+ 'face my-cperl-REx-spec-char-face)
+ (cperl-postpone-fontification
+ (1- (point)) (point) 'face
+ my-cperl-REx-spec-char-face)
+ (if (eq (char-after b) ?\] )
+ (cperl-postpone-fontification
+ (- (point) 2) (1- (point))
+ 'face my-cperl-REx-0length-face))
+ (while tag
+ (cperl-postpone-fontification
+ (car (car tag)) (cdr (car tag))
+ 'face my-cperl-REx-length1-face)
+ (setq tag (cdr tag)))
+ (setq was-subgr nil)) ; did facing already
+ ;; Now rare stuff:
+ ((and (match-beginning 2) ; #-comment
+ (/= (match-beginning 2) (match-end 2)))
+ (beginning-of-line 2)
+ (if (> (point) e)
+ (goto-char (1- e))))
+ ((match-beginning 4) ; character "]"
+ (setq was-subgr nil) ; We do stuff here
+ (goto-char (match-end 0))
+ (if cperl-use-syntax-table-text-property
+ (put-text-property
+ (1- (point)) (point)
+ 'syntax-table cperl-st-punct))
+ (cperl-postpone-fontification
+ (1- (point)) (point)
+ 'face font-lock-warning-face))
+ ((match-beginning 5) ; before (?{}) (??{})
+ (setq tag (match-end 0))
+ (if (or (setq qtag
+ (cperl-forward-group-in-re st-l))
+ (and (>= (point) e)
+ (setq qtag "no matching `)' found"))
+ (and (not (eq (char-after (- (point) 2))
+ ?\} ))
+ (setq qtag "Can't find })")))
+ (progn
+ (goto-char (1- e))
+ (message qtag))
+ (cperl-postpone-fontification
+ (1- tag) (1- (point))
+ 'face font-lock-variable-name-face)
+ (cperl-postpone-fontification
+ REx-subgr-start (1- tag)
+ 'face my-cperl-REx-spec-char-face)
+ (cperl-postpone-fontification
+ (1- (point)) (point)
+ 'face my-cperl-REx-spec-char-face)
+ (if cperl-use-syntax-table-text-property
+ (progn
+ (put-text-property
+ (- (point) 2) (1- (point))
+ 'syntax-table cperl-st-cfence)
+ (put-text-property
+ (+ REx-subgr-start 2)
+ (+ REx-subgr-start 3)
+ 'syntax-table cperl-st-cfence))))
+ (setq was-subgr nil))
+ (t ; (?#)-comment
+ ;; Inside "(" and "\" arn't special in any way
+ ;; Works also if the outside delimiters are ().
+ (or;;(if (eq (char-after b) ?\) )
+ ;;(re-search-forward
+ ;; "[^\\\\]\\(\\\\\\\\\\)*\\\\)"
+ ;; (1- e) 'toend)
+ (search-forward ")" (1- e) 'toend)
+ ;;)
+ (message
+ "Couldn't find end of (?#...)-comment in a REx, pos=%s"
+ REx-subgr-start))))
+ (if (>= (point) e)
+ (goto-char (1- e)))
+ (cond
+ (was-subgr
+ (setq REx-subgr-end (point))
+ (cperl-commentify
+ REx-subgr-start REx-subgr-end nil)
+ (cperl-postpone-fontification
+ REx-subgr-start REx-subgr-end
+ 'face font-lock-comment-face))))))
+ (if (and is-REx is-x-REx)
+ (put-text-property (1+ b) (1- e)
+ 'syntax-subtype 'x-REx)))
+ (if (and i2 e1 b1 (> e1 b1))
+ (progn ; No errors finding the second part...
+ (cperl-postpone-fontification
+ (1- e1) e1 'face my-cperl-delimiters-face)
+ (if (assoc (char-after b) cperl-starters)
+ (progn
+ (cperl-postpone-fontification
+ b1 (1+ b1) 'face my-cperl-delimiters-face)
+ (put-text-property b1 (1+ b1)
+ 'REx-part2 t)))))
+ (if (> (point) max)
+ (setq tmpend tb))))
+ ((match-beginning 17) ; sub with prototype or attribute
+ ;; 1+6+2+1+1=11 extra () before this (sub with proto/attr):
+ ;;"\\<sub\\>\\(" ;12
+ ;; cperl-white-and-comment-rex ;13
+ ;; "\\([a-zA-Z_:'0-9]+\\)\\)?" ; name ;14
+ ;;"\\(" cperl-maybe-white-and-comment-rex ;15,16
+ ;; "\\(([^()]*)\\|:[^:]\\)\\)" ; 17:proto or attribute start
+ (setq b1 (match-beginning 14) e1 (match-end 14))
+ (if (memq (char-after (1- b))
+ '(?\$ ?\@ ?\% ?\& ?\*))
+ nil
+ (goto-char b)
+ (if (eq (char-after (match-beginning 17)) ?\( )
+ (progn
+ (cperl-commentify ; Prototypes; mark as string
+ (match-beginning 17) (match-end 17) t)
+ (goto-char (match-end 0))
+ ;; Now look for attributes after prototype:
+ (forward-comment (buffer-size))
+ (and (looking-at ":[^:]")
+ (cperl-find-sub-attrs st-l b1 e1 b)))
+ ;; treat attributes without prototype
+ (goto-char (match-beginning 17))
+ (cperl-find-sub-attrs st-l b1 e1 b))))
+ ;; 1+6+2+1+1+6+1=18 extra () before this:
+ ;; "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'")
+ ((match-beginning 19) ; old $abc'efg syntax
+ (setq bb (match-end 0))
+ ;;;(if (nth 3 state) nil ; in string
+ (put-text-property (1- bb) bb 'syntax-table cperl-st-word)
+ (goto-char bb))
+ ;; 1+6+2+1+1+6+1+1=19 extra () before this:
+ ;; "__\\(END\\|DATA\\)__"
+ ((match-beginning 20) ; __END__, __DATA__
+ (setq bb (match-end 0))
+ ;; (put-text-property b (1+ bb) 'syntax-type 'pod) ; Cheat
+ (cperl-commentify b bb nil)
+ (setq end t))
+ ;; "\\\\\\(['`\"($]\\)"
+ ((match-beginning 21)
+ ;; Trailing backslash; make non-quoting outside string/comment
+ (setq bb (match-end 0))
+ (goto-char b)
+ (skip-chars-backward "\\\\")
+ ;;;(setq i2 (= (% (skip-chars-backward "\\\\") 2) -1))
+ (cperl-modify-syntax-type b cperl-st-punct)
+ (goto-char bb))
+ (t (error "Error in regexp of the sniffer")))
+ (if (> (point) stop-point)
+ (progn
+ (if end
+ (message "Garbage after __END__/__DATA__ ignored")
+ (message "Unbalanced syntax found while scanning")
+ (or (car err-l) (setcar err-l b)))
+ (goto-char stop-point))))
+ (setq cperl-syntax-state (cons state-point state)
+ ;; Do not mark syntax as done past tmpend???
+ cperl-syntax-done-to (or tmpend (max (point) max)))
+ ;;(message "state-at=%s, done-to=%s" state-point cperl-syntax-done-to)
+ )
+ (if (car err-l) (goto-char (car err-l))
+ (or non-inter
+ (message "Scanning for \"hard\" Perl constructions... done"))))
(and (buffer-modified-p)
(not modified)
- (set-buffer-modified-p nil)))))
+ (set-buffer-modified-p nil))
+ (set-syntax-table cperl-mode-syntax-table))
+ (list (car err-l) overshoot)))
+
+(defun cperl-find-pods-heres-region (min max)
+ (interactive "r")
+ (cperl-find-pods-heres min max))
(defun cperl-backward-to-noncomment (lim)
;; Stops at lim or after non-whitespace that is not in comment
- (let (stop p)
- (while (and (not stop) (> (point) (or lim 1)))
+ ;; XXXX Wrongly understands end-of-multiline strings with # as comment
+ (let (stop p pr)
+ (while (and (not stop) (> (point) (or lim (point-min))))
(skip-chars-backward " \t\n\f" lim)
(setq p (point))
(beginning-of-line)
- (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
- ;; Else
- (cperl-to-comment-or-eol)
- (skip-chars-backward " \t")
- (if (< p (point)) (goto-char p))
- (setq stop t)))))
+ (if (memq (setq pr (get-text-property (point) 'syntax-type))
+ '(pod here-doc here-doc-delim))
+ (progn
+ (cperl-unwind-to-safe nil)
+ (setq pr (get-text-property (point) 'syntax-type))))
+ (or (and (looking-at "^[ \t]*\\(#\\|$\\)")
+ (not (memq pr '(string prestring))))
+ (progn (cperl-to-comment-or-eol) (bolp))
+ (progn
+ (skip-chars-backward " \t")
+ (if (< p (point)) (goto-char p))
+ (setq stop t))))))
+
+;; Used only in `cperl-calculate-indent'...
+(defun cperl-block-p () ; Do not C-M-q ! One string contains ";" !
+ ;; Positions is before ?\{. Checks whether it starts a block.
+ ;; No save-excursion! This is more a distinguisher of a block/hash ref...
+ (cperl-backward-to-noncomment (point-min))
+ (or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
+ ; Label may be mixed up with `$blah :'
+ (save-excursion (cperl-after-label))
+ (get-text-property (cperl-1- (point)) 'attrib-group)
+ (and (memq (char-syntax (preceding-char)) '(?w ?_))
+ (progn
+ (backward-sexp)
+ ;; sub {BLK}, print {BLK} $data, but NOT `bless', `return', `tr'
+ (or (and (looking-at "[a-zA-Z0-9_:]+[ \t\n\f]*[{#]") ; Method call syntax
+ (not (looking-at "\\(bless\\|return\\|q[wqrx]?\\|tr\\|[smy]\\)\\>")))
+ ;; sub bless::foo {}
+ (progn
+ (cperl-backward-to-noncomment (point-min))
+ (and (eq (preceding-char) ?b)
+ (progn
+ (forward-sexp -1)
+ (looking-at "sub[ \t\n\f#]")))))))))
+
+;;; What is the difference of (cperl-after-block-p lim t) and (cperl-block-p)?
+;;; No save-excursion; condition-case ... In (cperl-block-p) the block
+;;; may be a part of an in-statement construct, such as
+;;; ${something()}, print {FH} $data.
+;;; Moreover, one takes positive approach (looks for else,grep etc)
+;;; another negative (looks for bless,tr etc)
+(defun cperl-after-block-p (lim &optional pre-block)
+ "Return true if the preceeding } (if PRE-BLOCK, following {) delimits a block.
+Would not look before LIM. Assumes that LIM is a good place to begin a
+statement. The kind of block we treat here is one after which a new
+statement would start; thus the block in ${func()} does not count."
+ (save-excursion
+ (condition-case nil
+ (progn
+ (or pre-block (forward-sexp -1))
+ (cperl-backward-to-noncomment lim)
+ (or (eq (point) lim)
+ ;; if () {} // sub f () {} // sub f :a(') {}
+ (eq (preceding-char) ?\) )
+ ;; label: {}
+ (save-excursion (cperl-after-label))
+ ;; sub :attr {}
+ (get-text-property (cperl-1- (point)) 'attrib-group)
+ (if (memq (char-syntax (preceding-char)) '(?w ?_)) ; else {}
+ (save-excursion
+ (forward-sexp -1)
+ ;; else {} but not else::func {}
+ (or (and (looking-at "\\(else\\|continue\\|grep\\|map\\|BEGIN\\|END\\|CHECK\\|INIT\\)\\>")
+ (not (looking-at "\\(\\sw\\|_\\)+::")))
+ ;; sub f {}
+ (progn
+ (cperl-backward-to-noncomment lim)
+ (and (eq (preceding-char) ?b)
+ (progn
+ (forward-sexp -1)
+ (looking-at "sub[ \t\n\f#]"))))))
+ ;; What preceeds is not word... XXXX Last statement in sub???
+ (cperl-after-expr-p lim))))
+ (error nil))))
(defun cperl-after-expr-p (&optional lim chars test)
- "Returns true if the position is good for start of expression.
-TEST is the expression to evaluate at the found position. If absent,
-CHARS is a string that contains good characters to have before us."
- (let (stop p)
+ "Return true if the position is good for start of expression.
+TEST is the expression to evaluate at the found position. If absent,
+CHARS is a string that contains good characters to have before us (however,
+`}' is treated \"smartly\" if it is not in the list)."
+ (let ((lim (or lim (point-min)))
+ stop p pr)
+ (cperl-update-syntaxification (point) (point))
(save-excursion
- (while (and (not stop) (> (point) (or lim 1)))
+ (while (and (not stop) (> (point) lim))
(skip-chars-backward " \t\n\f" lim)
(setq p (point))
(beginning-of-line)
+ ;;(memq (setq pr (get-text-property (point) 'syntax-type))
+ ;; '(pod here-doc here-doc-delim))
+ (if (get-text-property (point) 'here-doc-group)
+ (progn
+ (goto-char
+ (cperl-beginning-of-property (point) 'here-doc-group))
+ (beginning-of-line 0)))
+ (if (get-text-property (point) 'in-pod)
+ (progn
+ (goto-char
+ (cperl-beginning-of-property (point) 'in-pod))
+ (beginning-of-line 0)))
(if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
- ;; Else: last iteration (What to do with labels?)
- (cperl-to-comment-or-eol)
+ ;; Else: last iteration, or a label
+ (cperl-to-comment-or-eol) ; Will not move past "." after a format
(skip-chars-backward " \t")
(if (< p (point)) (goto-char p))
- (setq stop t)))
- (or (bobp)
+ (setq p (point))
+ (if (and (eq (preceding-char) ?:)
+ (progn
+ (forward-char -1)
+ (skip-chars-backward " \t\n\f" lim)
+ (memq (char-syntax (preceding-char)) '(?w ?_))))
+ (forward-sexp -1) ; Possibly label. Skip it
+ (goto-char p)
+ (setq stop t))))
+ (or (bobp) ; ???? Needed
+ (eq (point) lim)
+ (looking-at "[ \t]*__\\(END\\|DATA\\)__") ; After this anything goes
(progn
- (backward-char 1)
(if test (eval test)
- (memq (following-char) (append (or chars "{};") nil))))))))
+ (or (memq (preceding-char) (append (or chars "{;") nil))
+ (and (eq (preceding-char) ?\})
+ (cperl-after-block-p lim))
+ (and (eq (following-char) ?.) ; in format: see comment above
+ (eq (get-text-property (point) 'syntax-type)
+ 'format)))))))))
+
+(defun cperl-backward-to-start-of-expr (&optional lim)
+ (condition-case nil
+ (progn
+ (while (and (or (not lim)
+ (> (point) lim))
+ (not (cperl-after-expr-p lim)))
+ (forward-sexp -1)
+ ;; May be after $, @, $# etc of a variable
+ (skip-chars-backward "$@%#")))
+ (error nil)))
+
+(defun cperl-at-end-of-expr (&optional lim)
+ ;; Since the SEXP approach below is very fragile, do some overengineering
+ (or (looking-at (concat cperl-maybe-white-and-comment-rex "[;}]"))
+ (condition-case nil
+ (save-excursion
+ ;; If nothing interesting after, does as (forward-sexp -1);
+ ;; otherwise fails, or ends at a start of following sexp.
+ ;; XXXX PROBLEMS: if what follows (after ";") @FOO, or ${bar}
+ ;; may be stuck after @ or $; just put some stupid workaround now:
+ (let ((p (point)))
+ (forward-sexp 1)
+ (forward-sexp -1)
+ (while (memq (preceding-char) (append "%&@$*" nil))
+ (forward-char -1))
+ (or (< (point) p)
+ (cperl-after-expr-p lim))))
+ (error t))))
+
+(defun cperl-forward-to-end-of-expr (&optional lim)
+ (let ((p (point))))
+ (condition-case nil
+ (progn
+ (while (and (< (point) (or lim (point-max)))
+ (not (cperl-at-end-of-expr)))
+ (forward-sexp 1)))
+ (error nil)))
(defun cperl-backward-to-start-of-continued-exp (lim)
(if (memq (preceding-char) (append ")]}\"'`" nil))
(goto-char (1+ lim)))
(skip-chars-forward " \t"))
+(defun cperl-after-block-and-statement-beg (lim)
+ ;; We assume that we are after ?\}
+ (and
+ (cperl-after-block-p lim)
+ (save-excursion
+ (forward-sexp -1)
+ (cperl-backward-to-noncomment (point-min))
+ (or (bobp)
+ (eq (point) lim)
+ (not (= (char-syntax (preceding-char)) ?w))
+ (progn
+ (forward-sexp -1)
+ (not
+ (looking-at
+ "\\(map\\|grep\\|printf?\\|system\\|exec\\|tr\\|s\\)\\>")))))))
+
\f
(defvar innerloop-done nil)
(defvar last-depth nil)
(defun cperl-indent-exp ()
"Simple variant of indentation of continued-sexp.
-Should be slow. Will not indent comment if it starts at `comment-indent'
-or looks like continuation of the comment on the previous line."
+
+Will not indent comment if it starts at `comment-indent' or looks like
+continuation of the comment on the previous line.
+
+If `cperl-indent-region-fix-constructs', will improve spacing on
+conditional/loop constructs."
(interactive)
(save-excursion
(let ((tmp-end (progn (end-of-line) (point))) top done)
(save-excursion
+ (beginning-of-line)
(while (null done)
- (beginning-of-line)
(setq top (point))
- (while (= (nth 0 (parse-partial-sexp (point) tmp-end
- -1)) -1)
+ ;; Plan A: if line has an unfinished paren-group, go to end-of-group
+ (while (= -1 (nth 0 (parse-partial-sexp (point) tmp-end -1)))
(setq top (point))) ; Get the outermost parenths in line
(goto-char top)
(while (< (point) tmp-end)
(parse-partial-sexp (point) tmp-end nil t) ; To start-sexp or eol
(or (eolp) (forward-sexp 1)))
- (if (> (point) tmp-end) (progn (end-of-line) (setq tmp-end (point)))
- (setq done t)))
+ (if (> (point) tmp-end) ; Yes, there an unfinished block
+ nil
+ (if (eq ?\) (preceding-char))
+ (progn ;; Plan B: find by REGEXP block followup this line
+ (setq top (point))
+ (condition-case nil
+ (progn
+ (forward-sexp -2)
+ (if (eq (following-char) ?$ ) ; for my $var (list)
+ (progn
+ (forward-sexp -1)
+ (if (looking-at "\\(my\\|local\\|our\\)\\>")
+ (forward-sexp -1))))
+ (if (looking-at
+ (concat "\\(\\elsif\\|if\\|unless\\|while\\|until"
+ "\\|for\\(each\\)?\\>\\(\\("
+ cperl-maybe-white-and-comment-rex
+ "\\(my\\|local\\|our\\)\\)?"
+ cperl-maybe-white-and-comment-rex
+ "\\$[_a-zA-Z0-9]+\\)?\\)\\>"))
+ (progn
+ (goto-char top)
+ (forward-sexp 1)
+ (setq top (point)))))
+ (error (setq done t)))
+ (goto-char top))
+ (if (looking-at ; Try Plan C: continuation block
+ (concat cperl-maybe-white-and-comment-rex
+ "\\<\\(else\\|elsif\|continue\\)\\>"))
+ (progn
+ (goto-char (match-end 0))
+ (save-excursion
+ (end-of-line)
+ (setq tmp-end (point))))
+ (setq done t))))
+ (save-excursion
+ (end-of-line)
+ (setq tmp-end (point))))
(goto-char tmp-end)
(setq tmp-end (point-marker)))
+ (if cperl-indent-region-fix-constructs
+ (cperl-fix-line-spacing tmp-end))
(cperl-indent-region (point) tmp-end))))
+(defun cperl-fix-line-spacing (&optional end parse-data)
+ "Improve whitespace in a conditional/loop construct.
+Returns some position at the last line."
+ (interactive)
+ (or end
+ (setq end (point-max)))
+ (let ((ee (save-excursion (end-of-line) (point)))
+ (cperl-indent-region-fix-constructs
+ (or cperl-indent-region-fix-constructs 1))
+ p pp ml have-brace ret)
+ (save-excursion
+ (beginning-of-line)
+ (setq ret (point))
+ ;; }? continue
+ ;; blah; }
+ (if (not
+ (or (looking-at "[ \t]*\\(els\\(e\\|if\\)\\|continue\\|if\\|while\\|for\\(each\\)?\\|until\\)")
+ (setq have-brace (save-excursion (search-forward "}" ee t)))))
+ nil ; Do not need to do anything
+ ;; Looking at:
+ ;; }
+ ;; else
+ (if cperl-merge-trailing-else
+ (if (looking-at
+ "[ \t]*}[ \t]*\n[ \t\n]*\\(els\\(e\\|if\\)\\|continue\\)\\>")
+ (progn
+ (search-forward "}")
+ (setq p (point))
+ (skip-chars-forward " \t\n")
+ (delete-region p (point))
+ (insert (make-string cperl-indent-region-fix-constructs ?\ ))
+ (beginning-of-line)))
+ (if (looking-at "[ \t]*}[ \t]*\\(els\\(e\\|if\\)\\|continue\\)\\>")
+ (save-excursion
+ (search-forward "}")
+ (delete-horizontal-space)
+ (insert "\n")
+ (setq ret (point))
+ (if (cperl-indent-line parse-data)
+ (progn
+ (cperl-fix-line-spacing end parse-data)
+ (setq ret (point)))))))
+ ;; Looking at:
+ ;; } else
+ (if (looking-at "[ \t]*}\\(\t*\\|[ \t][ \t]+\\)\\<\\(els\\(e\\|if\\)\\|continue\\)\\>")
+ (progn
+ (search-forward "}")
+ (delete-horizontal-space)
+ (insert (make-string cperl-indent-region-fix-constructs ?\ ))
+ (beginning-of-line)))
+ ;; Looking at:
+ ;; else {
+ (if (looking-at
+ "[ \t]*}?[ \t]*\\<\\(\\els\\(e\\|if\\)\\|continue\\|unless\\|if\\|while\\|for\\(each\\)?\\|until\\)\\>\\(\t*\\|[ \t][ \t]+\\)[^ \t\n#]")
+ (progn
+ (forward-word 1)
+ (delete-horizontal-space)
+ (insert (make-string cperl-indent-region-fix-constructs ?\ ))
+ (beginning-of-line)))
+ ;; Looking at:
+ ;; foreach my $var
+ (if (looking-at
+ "[ \t]*\\<for\\(each\\)?[ \t]+\\(my\\|local\\|our\\)\\(\t*\\|[ \t][ \t]+\\)[^ \t\n]")
+ (progn
+ (forward-word 2)
+ (delete-horizontal-space)
+ (insert (make-string cperl-indent-region-fix-constructs ?\ ))
+ (beginning-of-line)))
+ ;; Looking at:
+ ;; foreach my $var (
+ (if (looking-at
+ "[ \t]*\\<for\\(each\\)?[ \t]+\\(my\\|local\\|our\\)[ \t]*\\$[_a-zA-Z0-9]+\\(\t*\\|[ \t][ \t]+\\)[^ \t\n#]")
+ (progn
+ (forward-sexp 3)
+ (delete-horizontal-space)
+ (insert
+ (make-string cperl-indent-region-fix-constructs ?\ ))
+ (beginning-of-line)))
+ ;; Looking at (with or without "}" at start, ending after "({"):
+ ;; } foreach my $var () OR {
+ (if (looking-at
+ "[ \t]*\\(}[ \t]*\\)?\\<\\(\\els\\(e\\|if\\)\\|continue\\|if\\|unless\\|while\\|for\\(each\\)?\\(\\([ \t]+\\(my\\|local\\|our\\)\\)?[ \t]*\\$[_a-zA-Z0-9]+\\)?\\|until\\)\\>\\([ \t]*(\\|[ \t\n]*{\\)\\|[ \t]*{")
+ (progn
+ (setq ml (match-beginning 8)) ; "(" or "{" after control word
+ (re-search-forward "[({]")
+ (forward-char -1)
+ (setq p (point))
+ (if (eq (following-char) ?\( )
+ (progn
+ (forward-sexp 1)
+ (setq pp (point))) ; past parenth-group
+ ;; after `else' or nothing
+ (if ml ; after `else'
+ (skip-chars-backward " \t\n")
+ (beginning-of-line))
+ (setq pp nil))
+ ;; Now after the sexp before the brace
+ ;; Multiline expr should be special
+ (setq ml (and pp (save-excursion (goto-char p)
+ (search-forward "\n" pp t))))
+ (if (and (or (not pp) (< pp end)) ; Do not go too far...
+ (looking-at "[ \t\n]*{"))
+ (progn
+ (cond
+ ((bolp) ; Were before `{', no if/else/etc
+ nil)
+ ((looking-at "\\(\t*\\| [ \t]+\\){") ; Not exactly 1 SPACE
+ (delete-horizontal-space)
+ (if (if ml
+ cperl-extra-newline-before-brace-multiline
+ cperl-extra-newline-before-brace)
+ (progn
+ (delete-horizontal-space)
+ (insert "\n")
+ (setq ret (point))
+ (if (cperl-indent-line parse-data)
+ (progn
+ (cperl-fix-line-spacing end parse-data)
+ (setq ret (point)))))
+ (insert
+ (make-string cperl-indent-region-fix-constructs ?\ ))))
+ ((and (looking-at "[ \t]*\n")
+ (not (if ml
+ cperl-extra-newline-before-brace-multiline
+ cperl-extra-newline-before-brace)))
+ (setq pp (point))
+ (skip-chars-forward " \t\n")
+ (delete-region pp (point))
+ (insert
+ (make-string cperl-indent-region-fix-constructs ?\ )))
+ ((and (looking-at "[\t ]*{")
+ (if ml cperl-extra-newline-before-brace-multiline
+ cperl-extra-newline-before-brace))
+ (delete-horizontal-space)
+ (insert "\n")
+ (setq ret (point))
+ (if (cperl-indent-line parse-data)
+ (progn
+ (cperl-fix-line-spacing end parse-data)
+ (setq ret (point))))))
+ ;; Now we are before `{'
+ (if (looking-at "[ \t\n]*{[ \t]*[^ \t\n#]")
+ (progn
+ (skip-chars-forward " \t\n")
+ (setq pp (point))
+ (forward-sexp 1)
+ (setq p (point))
+ (goto-char pp)
+ (setq ml (search-forward "\n" p t))
+ (if (or cperl-break-one-line-blocks-when-indent ml)
+ ;; not good: multi-line BLOCK
+ (progn
+ (goto-char (1+ pp))
+ (delete-horizontal-space)
+ (insert "\n")
+ (setq ret (point))
+ (if (cperl-indent-line parse-data)
+ (setq ret (cperl-fix-line-spacing end parse-data)))))))))))
+ (beginning-of-line)
+ (setq p (point) pp (save-excursion (end-of-line) (point))) ; May be different from ee.
+ ;; Now check whether there is a hanging `}'
+ ;; Looking at:
+ ;; } blah
+ (if (and
+ cperl-fix-hanging-brace-when-indent
+ have-brace
+ (not (looking-at "[ \t]*}[ \t]*\\(\\<\\(els\\(if\\|e\\)\\|continue\\|while\\|until\\)\\>\\|$\\|#\\)"))
+ (condition-case nil
+ (progn
+ (up-list 1)
+ (if (and (<= (point) pp)
+ (eq (preceding-char) ?\} )
+ (cperl-after-block-and-statement-beg (point-min)))
+ t
+ (goto-char p)
+ nil))
+ (error nil)))
+ (progn
+ (forward-char -1)
+ (skip-chars-backward " \t")
+ (if (bolp)
+ ;; `}' was the first thing on the line, insert NL *after* it.
+ (progn
+ (cperl-indent-line parse-data)
+ (search-forward "}")
+ (delete-horizontal-space)
+ (insert "\n"))
+ (delete-horizontal-space)
+ (or (eq (preceding-char) ?\;)
+ (bolp)
+ (and (eq (preceding-char) ?\} )
+ (cperl-after-block-p (point-min)))
+ (insert ";"))
+ (insert "\n")
+ (setq ret (point)))
+ (if (cperl-indent-line parse-data)
+ (setq ret (cperl-fix-line-spacing end parse-data)))
+ (beginning-of-line)))))
+ ret))
+
+(defvar cperl-update-start) ; Do not need to make them local
+(defvar cperl-update-end)
+(defun cperl-delay-update-hook (beg end old-len)
+ (setq cperl-update-start (min beg (or cperl-update-start (point-max))))
+ (setq cperl-update-end (max end (or cperl-update-end (point-min)))))
+
(defun cperl-indent-region (start end)
"Simple variant of indentation of region in CPerl mode.
-Should be slow. Will not indent comment if it starts at `comment-indent'
+Should be slow. Will not indent comment if it starts at `comment-indent'
or looks like continuation of the comment on the previous line.
-Indents all the lines whose first character is between START and END
-inclusive."
+Indents all the lines whose first character is between START and END
+inclusive.
+
+If `cperl-indent-region-fix-constructs', will improve spacing on
+conditional/loop constructs."
(interactive "r")
+ (cperl-update-syntaxification end end)
(save-excursion
- (let (st comm indent-info old-comm-indent new-comm-indent
- (pm 0) (imenu-scanning-message "Indenting... (%3d%%)"))
- (goto-char start)
- (setq old-comm-indent (and (cperl-to-comment-or-eol)
- (current-column))
- new-comm-indent old-comm-indent)
- (goto-char start)
- (or (bolp) (beginning-of-line 2))
- (or (fboundp 'imenu-progress-message)
- (message "Indenting... For feedback load `imenu'..."))
- (while (and (<= (point) end) (not (eobp))) ; bol to check start
- (and (fboundp 'imenu-progress-message)
- (imenu-progress-message
- pm (/ (* 100 (- (point) start)) (- end start -1))))
- (setq st (point)
- indent-info nil
- ) ; Believe indentation of the current
- (if (and (setq comm (looking-at "[ \t]*#"))
- (or (eq (current-indentation) (or old-comm-indent
- comment-column))
- (setq old-comm-indent nil)))
- (if (and old-comm-indent
- (= (current-indentation) old-comm-indent))
- (let ((comment-column new-comm-indent))
- (indent-for-comment)))
- (progn
- (cperl-indent-line 'indent-info)
- (or comm
- (progn
- (if (setq old-comm-indent (and (cperl-to-comment-or-eol)
- (current-column)))
- (progn (indent-for-comment)
- (skip-chars-backward " \t")
- (skip-chars-backward "#")
- (setq new-comm-indent (current-column))))))))
- (beginning-of-line 2))
+ (let (cperl-update-start cperl-update-end (h-a-c after-change-functions))
+ (let ((indent-info (if cperl-emacs-can-parse
+ (list nil nil nil) ; Cannot use '(), since will modify
+ nil))
+ (pm 0) (imenu-scanning-message "Indenting... (%3d%%)")
+ after-change-functions ; Speed it up!
+ st comm old-comm-indent new-comm-indent p pp i empty)
+ (if h-a-c (add-hook 'after-change-functions 'cperl-delay-update-hook))
+ (goto-char start)
+ (setq old-comm-indent (and (cperl-to-comment-or-eol)
+ (current-column))
+ new-comm-indent old-comm-indent)
+ (goto-char start)
+ (setq end (set-marker (make-marker) end)) ; indentation changes pos
+ (or (bolp) (beginning-of-line 2))
+ (or (fboundp 'imenu-progress-message)
+ (message "Indenting... For feedback load `imenu'..."))
+ (while (and (<= (point) end) (not (eobp))) ; bol to check start
+ (and (fboundp 'imenu-progress-message)
+ (imenu-progress-message
+ pm (/ (* 100 (- (point) start)) (- end start -1))))
+ (setq st (point))
+ (if (or
+ (setq empty (looking-at "[ \t]*\n"))
+ (and (setq comm (looking-at "[ \t]*#"))
+ (or (eq (current-indentation) (or old-comm-indent
+ comment-column))
+ (setq old-comm-indent nil))))
+ (if (and old-comm-indent
+ (not empty)
+ (= (current-indentation) old-comm-indent)
+ (not (eq (get-text-property (point) 'syntax-type) 'pod))
+ (not (eq (get-text-property (point) 'syntax-table)
+ cperl-st-cfence)))
+ (let ((comment-column new-comm-indent))
+ (indent-for-comment)))
+ (progn
+ (setq i (cperl-indent-line indent-info))
+ (or comm
+ (not i)
+ (progn
+ (if cperl-indent-region-fix-constructs
+ (goto-char (cperl-fix-line-spacing end indent-info)))
+ (if (setq old-comm-indent
+ (and (cperl-to-comment-or-eol)
+ (not (memq (get-text-property (point)
+ 'syntax-type)
+ '(pod here-doc)))
+ (not (eq (get-text-property (point)
+ 'syntax-table)
+ cperl-st-cfence))
+ (current-column)))
+ (progn (indent-for-comment)
+ (skip-chars-backward " \t")
+ (skip-chars-backward "#")
+ (setq new-comm-indent (current-column))))))))
+ (beginning-of-line 2))
(if (fboundp 'imenu-progress-message)
- (imenu-progress-message pm 100)
- (message nil)))))
-
-(defun cperl-slash-is-regexp (&optional pos)
- (save-excursion
- (goto-char (if pos pos (1- (point))))
- (and
- (not (memq (get-text-property (point) 'face)
- '(font-lock-string-face font-lock-comment-face)))
- (cperl-after-expr-p nil nil '
- (or (looking-at "[^]a-zA-Z0-9_)}]")
- (eq (get-text-property (point) 'face)
- 'font-lock-keyword-face))))))
+ (imenu-progress-message pm 100)
+ (message nil)))
+ ;; Now run the update hooks
+ (and after-change-functions
+ cperl-update-end
+ (save-excursion
+ (goto-char cperl-update-end)
+ (insert " ")
+ (delete-char -1)
+ (goto-char cperl-update-start)
+ (insert " ")
+ (delete-char -1))))))
;; Stolen from lisp-mode with a lot of improvements
"Like \\[fill-paragraph], but handle CPerl comments.
If any of the current line is a comment, fill the comment or the
block of it that point is in, preserving the comment's initial
-indentation and initial hashes. Behaves usually outside of comment."
+indentation and initial hashes. Behaves usually outside of comment."
(interactive "P")
- (let (
- ;; Non-nil if the current line contains a comment.
+ (let (;; Non-nil if the current line contains a comment.
has-comment
-
+ fill-paragraph-function ; do not recurse
;; If has-comment, the appropriate fill-prefix for the comment.
comment-fill-prefix
;; Line that contains code and comment (or nil)
((cperl-to-comment-or-eol)
(setq has-comment t)
(looking-at "#+[ \t]*")
- (setq start (point) c (current-column)
+ (setq start (point) c (current-column)
comment-fill-prefix
(concat (make-string (current-column) ?\ )
(buffer-substring (match-beginning 0) (match-end 0)))
- spaces (progn (skip-chars-backward " \t")
+ spaces (progn (skip-chars-backward " \t")
(buffer-substring (point) start))
- dc (- c (current-column)) len (- start (point))
+ dc (- c (current-column)) len (- start (point))
start (point-marker))
(delete-char len)
- (insert (make-string dc ?-)))))
+ (insert (make-string dc ?-))))) ; Placeholder (to avoid splitting???)
(if (not has-comment)
- (fill-paragraph justify) ; Do the usual thing outside of comment
+ (fill-paragraph justify) ; Do the usual thing outside of comment
;; Narrow to include only the comment, and then fill the region.
(save-restriction
(narrow-to-region
(goto-char (point-min))
(while (progn (forward-line 1) (< (point) (point-max)))
(skip-chars-forward " \t")
- (and (looking-at "#+")
- (delete-char (- (match-end 0) (match-beginning 0)))))
+ (if (looking-at "#+")
+ (progn
+ (if (and (eq (point) (match-beginning 0))
+ (not (eq (point) (match-end 0)))) nil
+ (error
+ "Bug in Emacs: `looking-at' in `narrow-to-region': match-data is garbage"))
+ (delete-char (- (match-end 0) (match-beginning 0))))))
;; Lines with only hashes on them can be paragraph boundaries.
(let ((paragraph-start (concat paragraph-start "\\|^[ \t#]*$"))
(fill-prefix comment-fill-prefix))
(fill-paragraph justify)))
(if (and start)
- (progn
+ (progn
(goto-char start)
(if (> dc 0)
- (progn (delete-char dc) (insert spaces)))
+ (progn (delete-char dc) (insert spaces)))
(if (or (= (current-column) c) iteration) nil
(setq comment-column c)
(indent-for-comment)
;; Repeat once more, flagging as iteration
- (cperl-fill-paragraph justify t)))))))
+ (cperl-fill-paragraph justify t))))))
+ t)
(defun cperl-do-auto-fill ()
;; Break out if the line is short enough
(end-of-line)
(current-column))
fill-column)
- (let ((c (save-excursion (beginning-of-line)
- (cperl-to-comment-or-eol) (point)))
- (s (memq (following-char) '(?\ ?\t))) marker)
- (if (>= c (point)) nil
- (setq marker (point-marker))
- (cperl-fill-paragraph)
- (goto-char marker)
- ;; Is not enough, sometimes marker is a start of line
- (if (bolp) (progn (re-search-forward "#+[ \t]*")
- (goto-char (match-end 0))))
- ;; Following space could have gone:
- (if (or (not s) (memq (following-char) '(?\ ?\t))) nil
- (insert " ")
- (backward-char 1))
- ;; Previous space could have gone:
- (or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
-
-(defvar imenu-example--function-name-regexp-perl
- "^\\([ \t]*\\(sub\\|package\\)[ \t\n]+\\([a-zA-Z_0-9:']+\\)[ \t]*\\|=head\\([12]\\)[ \t]+\\([^\n]+\\)$\\)")
+ (let ((c (save-excursion (beginning-of-line)
+ (cperl-to-comment-or-eol) (point)))
+ (s (memq (following-char) '(?\ ?\t))) marker)
+ (if (>= c (point)) nil
+ (setq marker (point-marker))
+ (cperl-fill-paragraph)
+ (goto-char marker)
+ ;; Is not enough, sometimes marker is a start of line
+ (if (bolp) (progn (re-search-forward "#+[ \t]*")
+ (goto-char (match-end 0))))
+ ;; Following space could have gone:
+ (if (or (not s) (memq (following-char) '(?\ ?\t))) nil
+ (insert " ")
+ (backward-char 1))
+ ;; Previous space could have gone:
+ (or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
(defun cperl-imenu-addback (lst &optional isback name)
;; We suppose that the lst is a DAG, unless the first element only
- ;; loops back, and ISBACK is set. Thus this function cannot be
+ ;; loops back, and ISBACK is set. Thus this function cannot be
;; applied twice without ISBACK set.
(cond ((not cperl-imenu-addback) lst)
(t
- (or name
+ (or name
(setq name "+++BACK+++"))
- (mapcar (function (lambda (elt)
- (if (and (listp elt) (listp (cdr elt)))
- (progn
- ;; In the other order it goes up
- ;; one level only ;-(
- (setcdr elt (cons (cons name lst)
- (cdr elt)))
- (cperl-imenu-addback (cdr elt) t name)
- ))))
+ (mapcar (lambda (elt)
+ (if (and (listp elt) (listp (cdr elt)))
+ (progn
+ ;; In the other order it goes up
+ ;; one level only ;-(
+ (setcdr elt (cons (cons name lst)
+ (cdr elt)))
+ (cperl-imenu-addback (cdr elt) t name))))
(if isback (cdr lst) lst))
lst)))
-(defun imenu-example--create-perl-index (&optional regexp)
+(defun cperl-imenu--create-perl-index (&optional regexp)
(require 'cl)
- (let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
+ (require 'imenu) ; May be called from TAGS creator
+ (let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
(index-unsorted-alist '()) (i-s-f (default-value 'imenu-sort-function))
(index-meth-alist '()) meth
- packages ends-ranges p
- (prev-pos 0) char fchar index index1 name (end-range 0) package)
+ packages ends-ranges p marker is-proto
+ (prev-pos 0) is-pack index index1 name (end-range 0) package)
(goto-char (point-min))
- (imenu-progress-message prev-pos 0)
+ (if noninteractive
+ (message "Scanning Perl for index")
+ (imenu-progress-message prev-pos 0))
+ (cperl-update-syntaxification (point-max) (point-max))
;; Search for the function
(progn ;;save-match-data
(while (re-search-forward
- (or regexp imenu-example--function-name-regexp-perl)
+ (or regexp cperl-imenu--function-name-regexp-perl)
nil t)
- (imenu-progress-message prev-pos)
- ;;(backward-up-list 1)
+ (or noninteractive
+ (imenu-progress-message prev-pos))
+ ;; 2=package-group, 5=package-name 8=sub-name
(cond
- ((match-beginning 2) ; package or sub
- (save-excursion
- (goto-char (match-beginning 2))
- (setq fchar (following-char))
- )
- (setq char (following-char) meth nil)
- (setq p (point))
+ ((and ; Skip some noise if building tags
+ (match-beginning 5) ; package name
+ ;;(eq (char-after (match-beginning 2)) ?p) ; package
+ (not (save-match-data
+ (looking-at "[ \t\n]*;")))) ; Plain text word 'package'
+ nil)
+ ((and
+ (or (match-beginning 2)
+ (match-beginning 8)) ; package or sub
+ ;; Skip if quoted (will not skip multi-line ''-strings :-():
+ (null (get-text-property (match-beginning 1) 'syntax-table))
+ (null (get-text-property (match-beginning 1) 'syntax-type))
+ (null (get-text-property (match-beginning 1) 'in-pod)))
+ (setq is-pack (match-beginning 2))
+ ;; (if (looking-at "([^()]*)[ \t\n\f]*")
+ ;; (goto-char (match-end 0))) ; Messes what follows
+ (setq meth nil
+ p (point))
(while (and ends-ranges (>= p (car ends-ranges)))
;; delete obsolete entries
(setq ends-ranges (cdr ends-ranges) packages (cdr packages)))
(setq package (or (car packages) "")
end-range (or (car ends-ranges) 0))
- (if (eq fchar ?p)
- (setq name (buffer-substring (match-beginning 3) (match-end 3))
- name (progn
- (set-text-properties 0 (length name) nil name)
- name)
- package (concat name "::")
- name (concat "package " name)
- end-range
- (save-excursion
- (parse-partial-sexp (point) (point-max) -1) (point))
- ends-ranges (cons end-range ends-ranges)
- packages (cons package packages)))
- ;; )
+ (if is-pack ; doing "package"
+ (progn
+ (if (match-beginning 5) ; named package
+ (setq name (buffer-substring (match-beginning 5)
+ (match-end 5))
+ name (progn
+ (set-text-properties 0 (length name) nil name)
+ name)
+ package (concat name "::")
+ name (concat "package " name))
+ ;; Support nameless packages
+ (setq name "package;" package ""))
+ (setq end-range
+ (save-excursion
+ (parse-partial-sexp (point) (point-max) -1) (point))
+ ends-ranges (cons end-range ends-ranges)
+ packages (cons package packages)))
+ (setq is-proto
+ (or (eq (following-char) ?\;)
+ (eq 0 (get-text-property (point) 'attrib-group)))))
;; Skip this function name if it is a prototype declaration.
- (if (and (eq fchar ?s) (eq char ?\;)) nil
- (setq index (imenu-example--name-and-position))
- (if (eq fchar ?p) nil
- (setq name (buffer-substring (match-beginning 3) (match-end 3)))
- (set-text-properties 0 (length name) nil name)
- (cond ((string-match "[:']" name)
- (setq meth t))
- ((> p end-range) nil)
- (t
- (setq name (concat package name) meth t))))
- (setcar index name)
- (if (eq fchar ?p)
+ (if (and is-proto (not is-pack)) nil
+ (or is-pack
+ (setq name
+ (buffer-substring (match-beginning 8) (match-end 8)))
+ (set-text-properties 0 (length name) nil name))
+ (setq marker (make-marker))
+ (set-marker marker (match-end (if is-pack 2 8)))
+ (cond (is-pack nil)
+ ((string-match "[:']" name)
+ (setq meth t))
+ ((> p end-range) nil)
+ (t
+ (setq name (concat package name) meth t)))
+ (setq index (cons name marker))
+ (if is-pack
(push index index-pack-alist)
(push index index-alist))
(if meth (push index index-meth-alist))
(push index index-unsorted-alist)))
- (t ; Pod section
- ;; (beginning-of-line)
- (setq index (imenu-example--name-and-position)
- name (buffer-substring (match-beginning 5) (match-end 5)))
+ ((match-beginning 16) ; POD section
+ (setq name (buffer-substring (match-beginning 17) (match-end 17))
+ marker (make-marker))
+ (set-marker marker (match-beginning 17))
(set-text-properties 0 (length name) nil name)
- (if (eq (char-after (match-beginning 4)) ?2)
- (setq name (concat " " name)))
- (setcar index name)
+ (setq name (concat (make-string
+ (* 3 (- (char-after (match-beginning 16)) ?1))
+ ?\ )
+ name)
+ index (cons name marker))
(setq index1 (cons (concat "=" name) (cdr index)))
(push index index-pod-alist)
(push index1 index-unsorted-alist)))))
- (imenu-progress-message prev-pos 100)
- (setq index-alist
+ (or noninteractive
+ (imenu-progress-message prev-pos 100))
+ (setq index-alist
(if (default-value 'imenu-sort-function)
(sort index-alist (default-value 'imenu-sort-function))
- (nreverse index-alist)))
+ (nreverse index-alist)))
(and index-pod-alist
(push (cons "+POD headers+..."
(nreverse index-pod-alist))
(setq elt (car lst) lst (cdr lst))
(cond ((string-match "\\(::\\|'\\)[_a-zA-Z0-9]+$" (car elt))
(setq pack (substring (car elt) 0 (match-beginning 0)))
- (if (setq group (assoc pack hier-list))
+ (if (setq group (assoc pack hier-list))
(if (listp (cdr group))
;; Have some functions already
- (setcdr group
- (cons (cons (substring
+ (setcdr group
+ (cons (cons (substring
(car elt)
(+ 2 (match-beginning 0)))
(cdr elt))
(cdr group)))
- (setcdr group (list (cons (substring
+ (setcdr group (list (cons (substring
(car elt)
(+ 2 (match-beginning 0)))
(cdr elt)))))
- (setq hier-list
- (cons (cons pack
- (list (cons (substring
+ (setq hier-list
+ (cons (cons pack
+ (list (cons (substring
(car elt)
(+ 2 (match-beginning 0)))
(cdr elt))))
(push (cons "+Packages+..."
(nreverse index-pack-alist))
index-alist))
- (and (or index-pack-alist index-pod-alist
+ (and (or index-pack-alist index-pod-alist
(default-value 'imenu-sort-function))
index-unsorted-alist
(push (cons "+Unsorted List+..."
index-alist))
(cperl-imenu-addback index-alist)))
-(defvar cperl-compilation-error-regexp-alist
- ;; This look like a paranoiac regexp: could anybody find a better one? (which WORK).
+\f
+;; Suggested by Mark A. Hershberger
+(defun cperl-outline-level ()
+ (looking-at outline-regexp)
+ (cond ((not (match-beginning 1)) 0) ; beginning-of-file
+;;;; 2=package-group, 5=package-name 8=sub-name 16=head-level
+ ((match-beginning 2) 0) ; package
+ ((match-beginning 8) 1) ; sub
+ ((match-beginning 16)
+ (- (char-after (match-beginning 16)) ?0)) ; headN ==> N
+ (t 5))) ; should not happen
+
+\f
+(defvar cperl-compilation-error-regexp-alist
+ ;; This look like a paranoiac regexp: could anybody find a better one? (which WORKS).
'(("^[^\n]* \\(file\\|at\\) \\([^ \t\n]+\\) [^\n]*line \\([0-9]+\\)[\\., \n]"
2 3))
"Alist that specifies how to match errors in perl output.")
(if (fboundp 'eval-after-load)
(eval-after-load
- "mode-compile"
- '(setq perl-compilation-error-regexp-alist
- cperl-compilation-error-regexp-alist)))
-
+ "mode-compile"
+ '(setq perl-compilation-error-regexp-alist
+ cperl-compilation-error-regexp-alist)))
-(defvar cperl-faces-init nil)
(defun cperl-windowed-init ()
"Initialization under windowed version."
- (add-hook 'font-lock-mode-hook
- (function
- (lambda ()
- (if (or
- (eq major-mode 'perl-mode)
- (eq major-mode 'cperl-mode))
- (progn
- (or cperl-faces-init (cperl-init-faces))))))))
+ (cond ((featurep 'ps-print)
+ (or cperl-faces-init
+ (progn
+ (and (boundp 'font-lock-multiline)
+ (setq cperl-font-lock-multiline t))
+ (cperl-init-faces))))
+ ((not cperl-faces-init)
+ (add-hook 'font-lock-mode-hook
+ (function
+ (lambda ()
+ (if (memq major-mode '(perl-mode cperl-mode))
+ (progn
+ (or cperl-faces-init (cperl-init-faces)))))))
+ (if (fboundp 'eval-after-load)
+ (eval-after-load
+ "ps-print"
+ '(or cperl-faces-init (cperl-init-faces)))))))
+
+(defun cperl-load-font-lock-keywords ()
+ (or cperl-faces-init (cperl-init-faces))
+ perl-font-lock-keywords)
+
+(defun cperl-load-font-lock-keywords-1 ()
+ (or cperl-faces-init (cperl-init-faces))
+ perl-font-lock-keywords-1)
+
+(defun cperl-load-font-lock-keywords-2 ()
+ (or cperl-faces-init (cperl-init-faces))
+ perl-font-lock-keywords-2)
(defvar perl-font-lock-keywords-1 nil
- "Additional expressions to highlight in Perl mode. Minimal set.")
+ "Additional expressions to highlight in Perl mode. Minimal set.")
(defvar perl-font-lock-keywords nil
- "Additional expressions to highlight in Perl mode. Default set.")
+ "Additional expressions to highlight in Perl mode. Default set.")
(defvar perl-font-lock-keywords-2 nil
- "Additional expressions to highlight in Perl mode. Maximal set")
+ "Additional expressions to highlight in Perl mode. Maximal set.")
+
+(defvar font-lock-background-mode)
+(defvar font-lock-display-type)
+(defun cperl-init-faces-weak ()
+ ;; Allow `cperl-find-pods-heres' to run.
+ (or (boundp 'font-lock-constant-face)
+ (cperl-force-face font-lock-constant-face
+ "Face for constant and label names"))
+ (or (boundp 'font-lock-warning-face)
+ (cperl-force-face font-lock-warning-face
+ "Face for things which should stand out"))
+ ;;(setq font-lock-constant-face 'font-lock-constant-face)
+ )
(defun cperl-init-faces ()
- (condition-case nil
+ (condition-case errs
(progn
(require 'font-lock)
(and (fboundp 'font-lock-fontify-anchored-keywords)
(featurep 'font-lock-extra)
- (message "You have an obsolete package `font-lock-extra'. Install `choose-color'."))
+ (message "You have an obsolete package `font-lock-extra'. Install `choose-color'."))
(let (t-font-lock-keywords t-font-lock-keywords-1 font-lock-anchored)
- ;;(defvar cperl-font-lock-enhanced nil
- ;; "Set to be non-nil if font-lock allows active highlights.")
(if (fboundp 'font-lock-fontify-anchored-keywords)
(setq font-lock-anchored t))
- (setq
+ (setq
t-font-lock-keywords
(list
+ (list "[ \t]+$" 0 cperl-invalid-face t)
(cons
(concat
"\\(^\\|[^$@%&\\]\\)\\<\\("
'identity
'("if" "until" "while" "elsif" "else" "unless" "for"
"foreach" "continue" "exit" "die" "last" "goto" "next"
- "redo" "return" "local" "exec" "sub" "do" "dump" "use"
- "require" "package" "eval" "my" "BEGIN" "END")
+ "redo" "return" "local" "exec" "sub" "do" "dump" "use" "our"
+ "require" "package" "eval" "my" "BEGIN" "END" "CHECK" "INIT")
"\\|") ; Flow control
"\\)\\>") 2) ; was "\\)[ \n\t;():,\|&]"
; In what follows we use `type' style
;; "getservbyport" "getservent" "getsockname"
;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int"
;; "ioctl" "join" "kill" "lc" "lcfirst" "le" "length"
- ;; "link" "listen" "localtime" "log" "lstat" "lt"
+ ;; "link" "listen" "localtime" "lock" "log" "lstat" "lt"
;; "mkdir" "msgctl" "msgget" "msgrcv" "msgsnd" "ne"
;; "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
;; "quotemeta" "rand" "read" "readdir" "readline"
;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite"
;; "shutdown" "sin" "sleep" "socket" "socketpair"
;; "sprintf" "sqrt" "srand" "stat" "substr" "symlink"
- ;; "syscall" "sysread" "system" "syswrite" "tell"
+ ;; "syscall" "sysopen" "sysread" "system" "syswrite" "tell"
;; "telldir" "time" "times" "truncate" "uc" "ucfirst"
;; "umask" "unlink" "unpack" "utime" "values" "vec"
;; "wait" "waitpid" "wantarray" "warn" "write" "x" "xor"
- "a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
+ "a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
"b\\(in\\(d\\|mode\\)\\|less\\)\\|"
"c\\(h\\(r\\(\\|oot\\)\\|dir\\|mod\\|own\\)\\|aller\\|rypt\\|"
"lose\\(\\|dir\\)\\|mp\\|o\\(s\\|n\\(tinue\\|nect\\)\\)\\)\\|"
"ent\\)\\|gr\\(ent\\|nam\\|gid\\)\\)\\)\\)\\|"
"hex\\|i\\(n\\(t\\|dex\\)\\|octl\\)\\|join\\|kill\\|"
"l\\(i\\(sten\\|nk\\)\\|stat\\|c\\(\\|first\\)\\|t\\|e"
- "\\(\\|ngth\\)\\|o\\(caltime\\|g\\)\\)\\|m\\(sg\\(rcv\\|snd\\|"
+ "\\(\\|ngth\\)\\|o\\(c\\(altime\\|k\\)\\|g\\)\\)\\|m\\(sg\\(rcv\\|snd\\|"
"ctl\\|get\\)\\|kdir\\)\\|n\\(e\\|ot\\)\\|o\\(pen\\(\\|dir\\)\\|"
"r\\(\\|d\\)\\|ct\\)\\|p\\(ipe\\|ack\\)\\|quotemeta\\|"
"r\\(index\\|and\\|mdir\\|e\\(quire\\|ad\\(pipe\\|\\|lin"
"\\(iority\\|otoent\\)\\|went\\|grp\\)\\|hostent\\|s\\(ervent\\|"
"ockopt\\)\\|netent\\|grent\\)\\|ek\\(\\|dir\\)\\|lect\\|"
"m\\(ctl\\|op\\|get\\)\\|nd\\)\\|h\\(utdown\\|m\\(read\\|ctl\\|"
- "write\\|get\\)\\)\\|y\\(s\\(read\\|call\\|tem\\|write\\)\\|"
+ "write\\|get\\)\\)\\|y\\(s\\(read\\|call\\|open\\|tem\\|write\\)\\|"
"mlink\\)\\|in\\|leep\\|ocket\\(pair\\|\\)\\)\\|t\\(runcate\\|"
"ell\\(\\|dir\\)\\|ime\\(\\|s\\)\\)\\|u\\(c\\(\\|first\\)\\|"
"time\\|mask\\|n\\(pack\\|link\\)\\)\\|v\\(alues\\|ec\\)\\|"
"w\\(a\\(rn\\|it\\(pid\\|\\)\\|ntarray\\)\\|rite\\)\\|"
- "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\)"
+ "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\|PACKAGE__\\)"
"\\)\\>") 2 'font-lock-type-face)
;; In what follows we use `other' style
;; for nonoverwritable builtins
(list
(concat
"\\(^\\|[^$@%&\\]\\)\\<\\("
- ;; "AUTOLOAD" "BEGIN" "DESTROY" "END" "__END__" "chomp"
+ ;; "AUTOLOAD" "BEGIN" "CHECK" "DESTROY" "END" "INIT" "__END__" "chomp"
;; "chop" "defined" "delete" "do" "each" "else" "elsif"
;; "eval" "exists" "for" "foreach" "format" "goto"
;; "grep" "if" "keys" "last" "local" "map" "my" "next"
- ;; "no" "package" "pop" "pos" "print" "printf" "push"
+ ;; "no" "our" "package" "pop" "pos" "print" "printf" "push"
;; "q" "qq" "qw" "qx" "redo" "return" "scalar" "shift"
;; "sort" "splice" "split" "study" "sub" "tie" "tr"
;; "undef" "unless" "unshift" "untie" "until" "use"
;; "while" "y"
- "AUTOLOAD\\|BEGIN\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
+ "AUTOLOAD\\|BEGIN\\|CHECK\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
"o\\)\\|DESTROY\\|e\\(ach\\|val\\|xists\\|ls\\(e\\|if\\)\\)\\|"
- "END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|if\\|keys\\|"
- "l\\(ast\\|ocal\\)\\|m\\(ap\\|y\\)\\|n\\(ext\\|o\\)\\|"
+ "END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|INIT\\|if\\|keys\\|"
+ "l\\(ast\\|ocal\\)\\|m\\(ap\\|y\\)\\|n\\(ext\\|o\\)\\|our\\|"
"p\\(ackage\\|rint\\(\\|f\\)\\|ush\\|o\\(p\\|s\\)\\)\\|"
- "q\\(\\|q\\|w\\|x\\)\\|re\\(turn\\|do\\)\\|s\\(pli\\(ce\\|t\\)\\|"
+ "q\\(\\|q\\|w\\|x\\|r\\)\\|re\\(turn\\|do\\)\\|s\\(pli\\(ce\\|t\\)\\|"
"calar\\|tudy\\|ub\\|hift\\|ort\\)\\|t\\(r\\|ie\\)\\|"
"u\\(se\\|n\\(shift\\|ti\\(l\\|e\\)\\|def\\|less\\)\\)\\|"
"while\\|y\\|__\\(END\\|DATA\\)__" ;__DATA__ added manually
"\\|[sm]" ; Added manually
- "\\)\\>") 2 'font-lock-other-type-face)
+ "\\)\\>") 2 'cperl-nonoverridable-face)
;; (mapconcat 'identity
;; '("#endif" "#else" "#ifdef" "#ifndef" "#if"
;; "#include" "#define" "#undef")
;; "\\|")
'("-[rwxoRWXOezsfdlpSbctugkTBMAC]\\>\\([ \t]+_\\>\\)?" 0
font-lock-function-name-face keep) ; Not very good, triggers at "[a-z]"
- '("\\<sub[ \t]+\\([^ \t{;]+\\)[ \t]*[{\n]" 1
- font-lock-function-name-face)
+ ;; This highlights declarations and definitions differenty.
+ ;; We do not try to highlight in the case of attributes:
+ ;; it is already done by `cperl-find-pods-heres'
+ (list (concat "\\<sub"
+ cperl-white-and-comment-rex ; whitespace/comments
+ "\\([^ \n\t{;()]+\\)" ; 2=name (assume non-anonymous)
+ "\\("
+ cperl-maybe-white-and-comment-rex ;whitespace/comments?
+ "([^()]*)\\)?" ; prototype
+ cperl-maybe-white-and-comment-rex ; whitespace/comments?
+ "[{;]")
+ 2 (if cperl-font-lock-multiline
+ '(if (eq (char-after (cperl-1- (match-end 0))) ?\{ )
+ 'font-lock-function-name-face
+ 'font-lock-variable-name-face)
+ ;; need to manually set 'multiline' for older font-locks
+ '(progn
+ (if (< 1 (count-lines (match-beginning 0)
+ (match-end 0)))
+ (put-text-property
+ (+ 3 (match-beginning 0)) (match-end 0)
+ 'syntax-type 'multiline))
+ (if (eq (char-after (cperl-1- (match-end 0))) ?\{ )
+ 'font-lock-function-name-face
+ 'font-lock-variable-name-face))))
'("\\<\\(package\\|require\\|use\\|import\\|no\\|bootstrap\\)[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t;]" ; require A if B;
2 font-lock-function-name-face)
'("^[ \t]*format[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t]*=[ \t]*$"
1 font-lock-function-name-face)
(cond ((featurep 'font-lock-extra)
- '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
+ '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
(2 font-lock-string-face t)
(0 '(restart 2 t)))) ; To highlight $a{bc}{ef}
(font-lock-anchored
(1 font-lock-string-face t))))
(t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
2 font-lock-string-face t)))
- '("[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
+ '("[\[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
font-lock-string-face t)
- '("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
- font-lock-reference-face) ; labels
+ '("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
+ font-lock-constant-face) ; labels
'("\\<\\(continue\\|next\\|last\\|redo\\|goto\\)\\>[ \t]+\\([a-zA-Z0-9_:]+\\)" ; labels as targets
- 2 font-lock-reference-face)
+ 2 font-lock-constant-face)
+ ;; Uncomment to get perl-mode-like vars
+ ;;; '("[$*]{?\\(\\sw+\\)" 1 font-lock-variable-name-face)
+ ;;; '("\\([@%]\\|\\$#\\)\\(\\sw+\\)"
+ ;;; (2 (cons font-lock-variable-name-face '(underline))))
(cond ((featurep 'font-lock-extra)
- '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
+ '("^[ \t]*\\(my\\|local\\|our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
(3 font-lock-variable-name-face)
(4 '(another 4 nil
("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
(1 font-lock-variable-name-face)
- (2 '(restart 2 nil) nil t)))
+ (2 '(restart 2 nil) nil t)))
nil t))) ; local variables, multiple
(font-lock-anchored
- '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
- (3 font-lock-variable-name-face)
- ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)"
- nil nil
- (1 font-lock-variable-name-face))))
- (t '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
+ ;; 1=my_etc, 2=white? 3=(+white? 4=white? 5=var
+ (` ((, (concat "\\<\\(my\\|local\\|our\\)"
+ cperl-maybe-white-and-comment-rex
+ "\\(("
+ cperl-maybe-white-and-comment-rex
+ "\\)?\\([$@%*]\\([a-zA-Z0-9_:]+\\|[^a-zA-Z0-9_]\\)\\)"))
+ (5 (, (if cperl-font-lock-multiline
+ 'font-lock-variable-name-face
+ '(progn (setq cperl-font-lock-multiline-start
+ (match-beginning 0))
+ 'font-lock-variable-name-face))))
+ ((, (concat "\\="
+ cperl-maybe-white-and-comment-rex
+ ","
+ cperl-maybe-white-and-comment-rex
+ "\\([$@%*]\\([a-zA-Z0-9_:]+\\|[^a-zA-Z0-9_]\\)\\)"))
+ ;; Bug in font-lock: limit is used not only to limit
+ ;; searches, but to set the "extend window for
+ ;; facification" property. Thus we need to minimize.
+ (, (if cperl-font-lock-multiline
+ '(if (match-beginning 3)
+ (save-excursion
+ (goto-char (match-beginning 3))
+ (condition-case nil
+ (forward-sexp 1)
+ (error
+ (condition-case nil
+ (forward-char 200)
+ (error nil)))) ; typeahead
+ (1- (point))) ; report limit
+ (forward-char -2)) ; disable continued expr
+ '(if (match-beginning 3)
+ (point-max) ; No limit for continuation
+ (forward-char -2)))) ; disable continued expr
+ (, (if cperl-font-lock-multiline
+ nil
+ '(progn ; Do at end
+ ;; "my" may be already fontified (POD),
+ ;; so cperl-font-lock-multiline-start is nil
+ (if (or (not cperl-font-lock-multiline-start)
+ (> 2 (count-lines
+ cperl-font-lock-multiline-start
+ (point))))
+ nil
+ (put-text-property
+ (1+ cperl-font-lock-multiline-start) (point)
+ 'syntax-type 'multiline))
+ (setq cperl-font-lock-multiline-start nil))))
+ (3 font-lock-variable-name-face)))))
+ (t '("^[ \t{}]*\\(my\\|local\\|our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
3 font-lock-variable-name-face)))
- '("\\<for\\(each\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
- 2 font-lock-variable-name-face)))
- (setq
+ '("\\<for\\(each\\)?\\([ \t]+\\(my\\|local\\|our\\)\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
+ 4 font-lock-variable-name-face)))
+ (setq
t-font-lock-keywords-1
(and (fboundp 'turn-on-font-lock) ; Check for newer font-lock
- (not cperl-xemacs-p) ; not yet as of XEmacs 19.12
+ ;; not yet as of XEmacs 19.12, works with 21.1.11
+ (or
+ (not cperl-xemacs-p)
+ (string< "21.1.9" emacs-version)
+ (and (string< "21.1.10" emacs-version)
+ (string< emacs-version "21.1.2")))
'(
("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
(if (eq (char-after (match-beginning 2)) ?%)
- font-lock-other-emphasized-face
- font-lock-emphasized-face)
+ cperl-hash-face
+ cperl-array-face)
t) ; arrays and hashes
("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
1
- (if (= (- (match-end 2) (match-beginning 2)) 1)
+ (if (= (- (match-end 2) (match-beginning 2)) 1)
(if (eq (char-after (match-beginning 3)) ?{)
- font-lock-other-emphasized-face
- font-lock-emphasized-face) ; arrays and hashes
+ cperl-hash-face
+ cperl-array-face) ; arrays and hashes
font-lock-variable-name-face) ; Just to put something
t)
+ ("\\(@\\|\\$#\\)\\(\\$+\\([a-zA-Z_:][a-zA-Z0-9_:]*\\|[^ \t\n]\\)\\)"
+ (1 cperl-array-face)
+ (2 font-lock-variable-name-face))
+ ("\\(%\\)\\(\\$+\\([a-zA-Z_:][a-zA-Z0-9_:]*\\|[^ \t\n]\\)\\)"
+ (1 cperl-hash-face)
+ (2 font-lock-variable-name-face))
;;("\\([smy]\\|tr\\)\\([^a-z_A-Z0-9]\\)\\(\\([^\n\\]*||\\)\\)\\2")
;;; Too much noise from \s* @s[ and friends
- ;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
+ ;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
;;(3 font-lock-function-name-face t t)
;;(4
;; (if (cperl-slash-is-regexp)
;; font-lock-function-name-face 'default) nil t))
)))
- (setq perl-font-lock-keywords-1 t-font-lock-keywords
+ (if cperl-highlight-variables-indiscriminately
+ (setq t-font-lock-keywords-1
+ (append t-font-lock-keywords-1
+ (list '("\\([$*]{?\\sw+\\)" 1
+ font-lock-variable-name-face)))))
+ (setq perl-font-lock-keywords-1
+ (if cperl-syntaxify-by-font-lock
+ (cons 'cperl-fontify-update
+ t-font-lock-keywords)
+ t-font-lock-keywords)
perl-font-lock-keywords perl-font-lock-keywords-1
perl-font-lock-keywords-2 (append
- t-font-lock-keywords
+ perl-font-lock-keywords-1
t-font-lock-keywords-1)))
(if (fboundp 'ps-print-buffer) (cperl-ps-print-init))
(if (or (featurep 'choose-color) (featurep 'font-lock-extra))
- (font-lock-require-faces
- (list
- ;; Color-light Color-dark Gray-light Gray-dark Mono
- (list 'font-lock-comment-face
- ["Firebrick" "OrangeRed" "DimGray" "Gray80"]
- nil
- [nil nil t t t]
- [nil nil t t t]
- nil)
- (list 'font-lock-string-face
- ["RosyBrown" "LightSalmon" "Gray50" "LightGray"]
- nil
- nil
- [nil nil t t t]
- nil)
- (list 'font-lock-keyword-face
- ["Purple" "LightSteelBlue" "DimGray" "Gray90"]
- nil
- [nil nil t t t]
- nil
- nil)
- (list 'font-lock-function-name-face
- (vector
- "Blue" "LightSkyBlue" "Gray50" "LightGray"
- (cdr (assq 'background-color ; if mono
- (frame-parameters))))
- (vector
- nil nil nil nil
- (cdr (assq 'foreground-color ; if mono
- (frame-parameters))))
- [nil nil t t t]
- nil
- nil)
- (list 'font-lock-variable-name-face
- ["DarkGoldenrod" "LightGoldenrod" "DimGray" "Gray90"]
- nil
- [nil nil t t t]
- [nil nil t t t]
- nil)
- (list 'font-lock-type-face
- ["DarkOliveGreen" "PaleGreen" "DimGray" "Gray80"]
- nil
- [nil nil t t t]
- nil
- [nil nil t t t]
- )
- (list 'font-lock-reference-face
- ["CadetBlue" "Aquamarine" "Gray50" "LightGray"]
- nil
- [nil nil t t t]
- nil
- [nil nil t t t]
- )
- (list 'font-lock-other-type-face
- ["chartreuse3" ("orchid1" "orange")
- nil "Gray80"]
- [nil nil "gray90"]
- [nil nil nil t t]
- [nil nil t t]
- [nil nil t t t]
- )
- (list 'font-lock-emphasized-face
- ["blue" "yellow" nil "Gray80"]
- ["lightyellow2" ("navy" "os2blue" "darkgreen")
- "gray90"]
- t
- nil
- nil)
- (list 'font-lock-other-emphasized-face
- ["red" "red" nil "Gray80"]
- ["lightyellow2" ("navy" "os2blue" "darkgreen")
- "gray90"]
- t
- t
- nil)))
+ (eval ; Avoid a warning
+ '(font-lock-require-faces
+ (list
+ ;; Color-light Color-dark Gray-light Gray-dark Mono
+ (list 'font-lock-comment-face
+ ["Firebrick" "OrangeRed" "DimGray" "Gray80"]
+ nil
+ [nil nil t t t]
+ [nil nil t t t]
+ nil)
+ (list 'font-lock-string-face
+ ["RosyBrown" "LightSalmon" "Gray50" "LightGray"]
+ nil
+ nil
+ [nil nil t t t]
+ nil)
+ (list 'font-lock-function-name-face
+ (vector
+ "Blue" "LightSkyBlue" "Gray50" "LightGray"
+ (cdr (assq 'background-color ; if mono
+ (frame-parameters))))
+ (vector
+ nil nil nil nil
+ (cdr (assq 'foreground-color ; if mono
+ (frame-parameters))))
+ [nil nil t t t]
+ nil
+ nil)
+ (list 'font-lock-variable-name-face
+ ["DarkGoldenrod" "LightGoldenrod" "DimGray" "Gray90"]
+ nil
+ [nil nil t t t]
+ [nil nil t t t]
+ nil)
+ (list 'font-lock-type-face
+ ["DarkOliveGreen" "PaleGreen" "DimGray" "Gray80"]
+ nil
+ [nil nil t t t]
+ nil
+ [nil nil t t t])
+ (list 'font-lock-warning-face
+ ["Pink" "Red" "Gray50" "LightGray"]
+ ["gray20" "gray90"
+ "gray80" "gray20"]
+ [nil nil t t t]
+ nil
+ [nil nil t t t]
+ )
+ (list 'font-lock-constant-face
+ ["CadetBlue" "Aquamarine" "Gray50" "LightGray"]
+ nil
+ [nil nil t t t]
+ nil
+ [nil nil t t t])
+ (list 'cperl-nonoverridable-face
+ ["chartreuse3" ("orchid1" "orange")
+ nil "Gray80"]
+ [nil nil "gray90"]
+ [nil nil nil t t]
+ [nil nil t t]
+ [nil nil t t t])
+ (list 'cperl-array-face
+ ["blue" "yellow" nil "Gray80"]
+ ["lightyellow2" ("navy" "os2blue" "darkgreen")
+ "gray90"]
+ t
+ nil
+ nil)
+ (list 'cperl-hash-face
+ ["red" "red" nil "Gray80"]
+ ["lightyellow2" ("navy" "os2blue" "darkgreen")
+ "gray90"]
+ t
+ t
+ nil))))
+ ;; Do it the dull way, without choose-color
(defvar cperl-guessed-background nil
"Display characteristics as guessed by cperl.")
- (or (fboundp 'x-color-defined-p)
- (defalias 'x-color-defined-p
- (cond ((fboundp 'color-defined-p) 'color-defined-p)
- ;; XEmacs >= 19.12
- ((fboundp 'valid-color-name-p) 'valid-color-name-p)
- ;; XEmacs 19.11
- (t 'x-valid-color-name-p))))
- (defvar font-lock-reference-face 'font-lock-reference-face)
- (defvar font-lock-variable-name-face 'font-lock-variable-name-face)
- (or (boundp 'font-lock-type-face)
- (defconst font-lock-type-face
- 'font-lock-type-face
- "Face to use for data types.")
- )
- (or (boundp 'font-lock-other-type-face)
- (defconst font-lock-other-type-face
- 'font-lock-other-type-face
- "Face to use for data types from another group.")
- )
- (if (not cperl-xemacs-p) nil
- (or (boundp 'font-lock-comment-face)
- (defconst font-lock-comment-face
- 'font-lock-comment-face
- "Face to use for comments.")
- )
- (or (boundp 'font-lock-keyword-face)
- (defconst font-lock-keyword-face
- 'font-lock-keyword-face
- "Face to use for keywords.")
- )
- (or (boundp 'font-lock-function-name-face)
- (defconst font-lock-function-name-face
- 'font-lock-function-name-face
- "Face to use for function names.")
- )
- )
- ;;(if (featurep 'font-lock)
- (if (face-equal font-lock-type-face font-lock-comment-face)
- (defconst font-lock-type-face
- 'font-lock-type-face
- "Face to use for basic data types.")
- )
-;;; (if (fboundp 'eval-after-load)
-;;; (eval-after-load "font-lock"
-;;; '(if (face-equal font-lock-type-face
-;;; font-lock-comment-face)
-;;; (defconst font-lock-type-face
-;;; 'font-lock-type-face
-;;; "Face to use for basic data types.")
-;;; ))) ; This does not work :-( Why?!
-;;; ; Workaround: added to font-lock-m-h
-;;; )
- (or (boundp 'font-lock-other-emphasized-face)
- (defconst font-lock-other-emphasized-face
- 'font-lock-other-emphasized-face
- "Face to use for another type of emphasizing.")
- )
- (or (boundp 'font-lock-emphasized-face)
- (defconst font-lock-emphasized-face
- 'font-lock-emphasized-face
- "Face to use for emphasizing.")
- )
+ ;; (or (fboundp 'x-color-defined-p)
+ ;; (defalias 'x-color-defined-p
+ ;; (cond ((fboundp 'color-defined-p) 'color-defined-p)
+ ;; ;; XEmacs >= 19.12
+ ;; ((fboundp 'valid-color-name-p) 'valid-color-name-p)
+ ;; ;; XEmacs 19.11
+ ;; (t 'x-valid-color-name-p))))
+ (cperl-force-face font-lock-constant-face
+ "Face for constant and label names")
+ (cperl-force-face font-lock-variable-name-face
+ "Face for variable names")
+ (cperl-force-face font-lock-type-face
+ "Face for data types")
+ (cperl-force-face cperl-nonoverridable-face
+ "Face for data types from another group")
+ (cperl-force-face font-lock-warning-face
+ "Face for things which should stand out")
+ (cperl-force-face font-lock-comment-face
+ "Face for comments")
+ (cperl-force-face font-lock-function-name-face
+ "Face for function names")
+ (cperl-force-face cperl-hash-face
+ "Face for hashes")
+ (cperl-force-face cperl-array-face
+ "Face for arrays")
+ ;;(defvar font-lock-constant-face 'font-lock-constant-face)
+ ;;(defvar font-lock-variable-name-face 'font-lock-variable-name-face)
+ ;;(or (boundp 'font-lock-type-face)
+ ;; (defconst font-lock-type-face
+ ;; 'font-lock-type-face
+ ;; "Face to use for data types."))
+ ;;(or (boundp 'cperl-nonoverridable-face)
+ ;; (defconst cperl-nonoverridable-face
+ ;; 'cperl-nonoverridable-face
+ ;; "Face to use for data types from another group."))
+ ;;(if (not cperl-xemacs-p) nil
+ ;; (or (boundp 'font-lock-comment-face)
+ ;; (defconst font-lock-comment-face
+ ;; 'font-lock-comment-face
+ ;; "Face to use for comments."))
+ ;; (or (boundp 'font-lock-keyword-face)
+ ;; (defconst font-lock-keyword-face
+ ;; 'font-lock-keyword-face
+ ;; "Face to use for keywords."))
+ ;; (or (boundp 'font-lock-function-name-face)
+ ;; (defconst font-lock-function-name-face
+ ;; 'font-lock-function-name-face
+ ;; "Face to use for function names.")))
+ (if (and
+ (not (cperl-is-face 'cperl-array-face))
+ (cperl-is-face 'font-lock-emphasized-face))
+ (copy-face 'font-lock-emphasized-face 'cperl-array-face))
+ (if (and
+ (not (cperl-is-face 'cperl-hash-face))
+ (cperl-is-face 'font-lock-other-emphasized-face))
+ (copy-face 'font-lock-other-emphasized-face
+ 'cperl-hash-face))
+ (if (and
+ (not (cperl-is-face 'cperl-nonoverridable-face))
+ (cperl-is-face 'font-lock-other-type-face))
+ (copy-face 'font-lock-other-type-face
+ 'cperl-nonoverridable-face))
+ ;;(or (boundp 'cperl-hash-face)
+ ;; (defconst cperl-hash-face
+ ;; 'cperl-hash-face
+ ;; "Face to use for hashes."))
+ ;;(or (boundp 'cperl-array-face)
+ ;; (defconst cperl-array-face
+ ;; 'cperl-array-face
+ ;; "Face to use for arrays."))
;; Here we try to guess background
(let ((background
(if (boundp 'font-lock-background-mode)
font-lock-background-mode
- 'light))
- (face-list (and (fboundp 'face-list) (face-list)))
- is-face)
- (fset 'is-face
- (cond ((fboundp 'find-face)
- (symbol-function 'find-face))
- (face-list
- (function (lambda (face) (member face face-list))))
- (t
- (function (lambda (face) (boundp face))))))
+ 'light))
+ (face-list (and (fboundp 'face-list) (face-list))))
+;;;; (fset 'cperl-is-face
+;;;; (cond ((fboundp 'find-face)
+;;;; (symbol-function 'find-face))
+;;;; (face-list
+;;;; (function (lambda (face) (member face face-list))))
+;;;; (t
+;;;; (function (lambda (face) (boundp face))))))
(defvar cperl-guessed-background
(if (and (boundp 'font-lock-display-type)
(eq font-lock-display-type 'grayscale))
'gray
background)
"Background as guessed by CPerl mode")
- (if (is-face 'font-lock-type-face) nil
+ (and (not (cperl-is-face 'font-lock-constant-face))
+ (cperl-is-face 'font-lock-reference-face)
+ (copy-face 'font-lock-reference-face 'font-lock-constant-face))
+ (if (cperl-is-face 'font-lock-type-face) nil
(copy-face 'default 'font-lock-type-face)
(cond
((eq background 'light)
"pink")))
(t
(set-face-background 'font-lock-type-face "gray90"))))
- (if (is-face 'font-lock-other-type-face)
+ (if (cperl-is-face 'cperl-nonoverridable-face)
nil
- (copy-face 'font-lock-type-face 'font-lock-other-type-face)
+ (copy-face 'font-lock-type-face 'cperl-nonoverridable-face)
(cond
((eq background 'light)
- (set-face-foreground 'font-lock-other-type-face
+ (set-face-foreground 'cperl-nonoverridable-face
(if (x-color-defined-p "chartreuse3")
"chartreuse3"
"chartreuse")))
((eq background 'dark)
- (set-face-foreground 'font-lock-other-type-face
+ (set-face-foreground 'cperl-nonoverridable-face
(if (x-color-defined-p "orchid1")
"orchid1"
"orange")))))
- (if (is-face 'font-lock-other-emphasized-face) nil
- (copy-face 'bold-italic 'font-lock-other-emphasized-face)
- (cond
- ((eq background 'light)
- (set-face-background 'font-lock-other-emphasized-face
- (if (x-color-defined-p "lightyellow2")
- "lightyellow2"
- (if (x-color-defined-p "lightyellow")
- "lightyellow"
- "light yellow"))))
- ((eq background 'dark)
- (set-face-background 'font-lock-other-emphasized-face
- (if (x-color-defined-p "navy")
- "navy"
- (if (x-color-defined-p "darkgreen")
- "darkgreen"
- "dark green"))))
- (t (set-face-background 'font-lock-other-emphasized-face "gray90"))))
- (if (is-face 'font-lock-emphasized-face) nil
- (copy-face 'bold 'font-lock-emphasized-face)
- (cond
- ((eq background 'light)
- (set-face-background 'font-lock-emphasized-face
- (if (x-color-defined-p "lightyellow2")
- "lightyellow2"
- "lightyellow")))
- ((eq background 'dark)
- (set-face-background 'font-lock-emphasized-face
- (if (x-color-defined-p "navy")
- "navy"
- (if (x-color-defined-p "darkgreen")
- "darkgreen"
- "dark green"))))
- (t (set-face-background 'font-lock-emphasized-face "gray90"))))
- (if (is-face 'font-lock-variable-name-face) nil
+;;; (if (cperl-is-face 'font-lock-other-emphasized-face) nil
+;;; (copy-face 'bold-italic 'font-lock-other-emphasized-face)
+;;; (cond
+;;; ((eq background 'light)
+;;; (set-face-background 'font-lock-other-emphasized-face
+;;; (if (x-color-defined-p "lightyellow2")
+;;; "lightyellow2"
+;;; (if (x-color-defined-p "lightyellow")
+;;; "lightyellow"
+;;; "light yellow"))))
+;;; ((eq background 'dark)
+;;; (set-face-background 'font-lock-other-emphasized-face
+;;; (if (x-color-defined-p "navy")
+;;; "navy"
+;;; (if (x-color-defined-p "darkgreen")
+;;; "darkgreen"
+;;; "dark green"))))
+;;; (t (set-face-background 'font-lock-other-emphasized-face "gray90"))))
+;;; (if (cperl-is-face 'font-lock-emphasized-face) nil
+;;; (copy-face 'bold 'font-lock-emphasized-face)
+;;; (cond
+;;; ((eq background 'light)
+;;; (set-face-background 'font-lock-emphasized-face
+;;; (if (x-color-defined-p "lightyellow2")
+;;; "lightyellow2"
+;;; "lightyellow")))
+;;; ((eq background 'dark)
+;;; (set-face-background 'font-lock-emphasized-face
+;;; (if (x-color-defined-p "navy")
+;;; "navy"
+;;; (if (x-color-defined-p "darkgreen")
+;;; "darkgreen"
+;;; "dark green"))))
+;;; (t (set-face-background 'font-lock-emphasized-face "gray90"))))
+ (if (cperl-is-face 'font-lock-variable-name-face) nil
(copy-face 'italic 'font-lock-variable-name-face))
- (if (is-face 'font-lock-reference-face) nil
- (copy-face 'italic 'font-lock-reference-face))))
+ (if (cperl-is-face 'font-lock-constant-face) nil
+ (copy-face 'italic 'font-lock-constant-face))))
(setq cperl-faces-init t))
- (error nil)))
+ (error (message "cperl-init-faces (ignored): %s" errs))))
(defun cperl-ps-print-init ()
"Initialization of `ps-print' components for faces used in CPerl."
- ;; Guard against old versions
- (defvar ps-underlined-faces nil)
- (defvar ps-bold-faces nil)
- (defvar ps-italic-faces nil)
- (setq ps-bold-faces
- (append '(font-lock-emphasized-face
- font-lock-keyword-face
- font-lock-variable-name-face
- font-lock-reference-face
- font-lock-other-emphasized-face)
- ps-bold-faces))
- (setq ps-italic-faces
- (append '(font-lock-other-type-face
- font-lock-reference-face
- font-lock-other-emphasized-face)
- ps-italic-faces))
- (setq ps-underlined-faces
- (append '(font-lock-emphasized-face
- font-lock-other-emphasized-face
- font-lock-other-type-face font-lock-type-face)
- ps-underlined-faces))
- (cons 'font-lock-type-face ps-underlined-faces))
+ (eval-after-load "ps-print"
+ '(setq ps-bold-faces
+ ;; font-lock-variable-name-face
+ ;; font-lock-constant-face
+ (append '(cperl-array-face
+ cperl-hash-face)
+ ps-bold-faces)
+ ps-italic-faces
+ ;; font-lock-constant-face
+ (append '(cperl-nonoverridable-face
+ cperl-hash-face)
+ ps-italic-faces)
+ ps-underlined-faces
+ ;; font-lock-type-face
+ (append '(cperl-array-face
+ cperl-hash-face
+ underline
+ cperl-nonoverridable-face)
+ ps-underlined-faces))))
+
+(defvar ps-print-face-extension-alist)
+
+(defun cperl-ps-print (&optional file)
+ "Pretty-print in CPerl style.
+If optional argument FILE is an empty string, prints to printer, otherwise
+to the file FILE. If FILE is nil, prompts for a file name.
+
+Style of printout regulated by the variable `cperl-ps-print-face-properties'."
+ (interactive)
+ (or file
+ (setq file (read-from-minibuffer
+ "Print to file (if empty - to printer): "
+ (concat (buffer-file-name) ".ps")
+ nil nil 'file-name-history)))
+ (or (> (length file) 0)
+ (setq file nil))
+ (require 'ps-print) ; To get ps-print-face-extension-alist
+ (let ((ps-print-color-p t)
+ (ps-print-face-extension-alist ps-print-face-extension-alist))
+ (cperl-ps-extend-face-list cperl-ps-print-face-properties)
+ (ps-print-buffer-with-faces file)))
+
+;;; (defun cperl-ps-print-init ()
+;;; "Initialization of `ps-print' components for faces used in CPerl."
+;;; ;; Guard against old versions
+;;; (defvar ps-underlined-faces nil)
+;;; (defvar ps-bold-faces nil)
+;;; (defvar ps-italic-faces nil)
+;;; (setq ps-bold-faces
+;;; (append '(font-lock-emphasized-face
+;;; cperl-array-face
+;;; font-lock-keyword-face
+;;; font-lock-variable-name-face
+;;; font-lock-constant-face
+;;; font-lock-reference-face
+;;; font-lock-other-emphasized-face
+;;; cperl-hash-face)
+;;; ps-bold-faces))
+;;; (setq ps-italic-faces
+;;; (append '(cperl-nonoverridable-face
+;;; font-lock-constant-face
+;;; font-lock-reference-face
+;;; font-lock-other-emphasized-face
+;;; cperl-hash-face)
+;;; ps-italic-faces))
+;;; (setq ps-underlined-faces
+;;; (append '(font-lock-emphasized-face
+;;; cperl-array-face
+;;; font-lock-other-emphasized-face
+;;; cperl-hash-face
+;;; cperl-nonoverridable-face font-lock-type-face)
+;;; ps-underlined-faces))
+;;; (cons 'font-lock-type-face ps-underlined-faces))
(if (cperl-enable-font-lock) (cperl-windowed-init))
+(defconst cperl-styles-entries
+ '(cperl-indent-level cperl-brace-offset cperl-continued-brace-offset
+ cperl-label-offset cperl-extra-newline-before-brace
+ cperl-extra-newline-before-brace-multiline
+ cperl-merge-trailing-else
+ cperl-continued-statement-offset))
+
+(defconst cperl-style-examples
+"##### Numbers etc are: cperl-indent-level cperl-brace-offset
+##### cperl-continued-brace-offset cperl-label-offset
+##### cperl-continued-statement-offset
+##### cperl-merge-trailing-else cperl-extra-newline-before-brace
+
+########### (Do not forget cperl-extra-newline-before-brace-multiline)
+
+### CPerl (=GNU - extra-newline-before-brace + merge-trailing-else) 2/0/0/-2/2/t/nil
+if (foo) {
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+} else {
+ stop;
+}
+
+### PerlStyle (=CPerl with 4 as indent) 4/0/0/-4/4/t/nil
+if (foo) {
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+} else {
+ stop;
+}
+
+### GNU 2/0/0/-2/2/nil/t
+if (foo)
+ {
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+ }
+else
+ {
+ stop;
+ }
+
+### C++ (=PerlStyle with braces aligned with control words) 4/0/-4/-4/4/nil/t
+if (foo)
+{
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+}
+else
+{
+ stop;
+}
+
+### BSD (=C++, but will not change preexisting merge-trailing-else
+### and extra-newline-before-brace ) 4/0/-4/-4/4
+if (foo)
+{
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+}
+else
+{
+ stop;
+}
+
+### K&R (=C++ with indent 5 - merge-trailing-else, but will not
+### change preexisting extra-newline-before-brace) 5/0/-5/-5/5/nil
+if (foo)
+{
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+}
+else
+{
+ stop;
+}
+
+### Whitesmith (=PerlStyle, but will not change preexisting
+### extra-newline-before-brace and merge-trailing-else) 4/0/0/-4/4
+if (foo)
+ {
+ bar
+ baz;
+ label:
+ {
+ boon;
+ }
+ }
+else
+ {
+ stop;
+ }
+"
+"Examples of if/else with different indent styles (with v4.23).")
+
+(defconst cperl-style-alist
+ '(("CPerl" ;; =GNU - extra-newline-before-brace + cperl-merge-trailing-else
+ (cperl-indent-level . 2)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . 0)
+ (cperl-label-offset . -2)
+ (cperl-continued-statement-offset . 2)
+ (cperl-extra-newline-before-brace . nil)
+ (cperl-extra-newline-before-brace-multiline . nil)
+ (cperl-merge-trailing-else . t))
+
+ ("PerlStyle" ; CPerl with 4 as indent
+ (cperl-indent-level . 4)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . 0)
+ (cperl-label-offset . -4)
+ (cperl-continued-statement-offset . 4)
+ (cperl-extra-newline-before-brace . nil)
+ (cperl-extra-newline-before-brace-multiline . nil)
+ (cperl-merge-trailing-else . t))
+
+ ("GNU"
+ (cperl-indent-level . 2)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . 0)
+ (cperl-label-offset . -2)
+ (cperl-continued-statement-offset . 2)
+ (cperl-extra-newline-before-brace . t)
+ (cperl-extra-newline-before-brace-multiline . t)
+ (cperl-merge-trailing-else . nil))
+
+ ("K&R"
+ (cperl-indent-level . 5)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . -5)
+ (cperl-label-offset . -5)
+ (cperl-continued-statement-offset . 5)
+ ;;(cperl-extra-newline-before-brace . nil) ; ???
+ ;;(cperl-extra-newline-before-brace-multiline . nil)
+ (cperl-merge-trailing-else . nil))
+
+ ("BSD"
+ (cperl-indent-level . 4)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . -4)
+ (cperl-label-offset . -4)
+ (cperl-continued-statement-offset . 4)
+ ;;(cperl-extra-newline-before-brace . nil) ; ???
+ ;;(cperl-extra-newline-before-brace-multiline . nil)
+ ;;(cperl-merge-trailing-else . nil) ; ???
+ )
+
+ ("C++"
+ (cperl-indent-level . 4)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . -4)
+ (cperl-label-offset . -4)
+ (cperl-continued-statement-offset . 4)
+ (cperl-extra-newline-before-brace . t)
+ (cperl-extra-newline-before-brace-multiline . t)
+ (cperl-merge-trailing-else . nil))
+
+ ("Whitesmith"
+ (cperl-indent-level . 4)
+ (cperl-brace-offset . 0)
+ (cperl-continued-brace-offset . 0)
+ (cperl-label-offset . -4)
+ (cperl-continued-statement-offset . 4)
+ ;;(cperl-extra-newline-before-brace . nil) ; ???
+ ;;(cperl-extra-newline-before-brace-multiline . nil)
+ ;;(cperl-merge-trailing-else . nil) ; ???
+ )
+ ("Current"))
+ "List of variables to set to get a particular indentation style.
+Should be used via `cperl-set-style' or via Perl menu.
+
+See examples in `cperl-style-examples'.")
+
(defun cperl-set-style (style)
- "Set CPerl-mode variables to use one of several different indentation styles.
+ "Set CPerl mode variables to use one of several different indentation styles.
The arguments are a string representing the desired style.
-Available styles are GNU, K&R, BSD and Whitesmith."
- (interactive
- (let ((list (mapcar (function (lambda (elt) (list (car elt))))
- c-style-alist)))
+The list of styles is in `cperl-style-alist', available styles
+are CPerl, PerlStyle, GNU, K&R, BSD, C++ and Whitesmith.
+
+The current value of style is memorized (unless there is a memorized
+data already), may be restored by `cperl-set-style-back'.
+
+Chosing \"Current\" style will not change style, so this may be used for
+side-effect of memorizing only. Examples in `cperl-style-examples'."
+ (interactive
+ (let ((list (mapcar (function (lambda (elt) (list (car elt))))
+ cperl-style-alist)))
(list (completing-read "Enter style: " list nil 'insist))))
- (let ((style (cdr (assoc style c-style-alist))) setting str sym)
+ (or cperl-old-style
+ (setq cperl-old-style
+ (mapcar (function
+ (lambda (name)
+ (cons name (eval name))))
+ cperl-styles-entries)))
+ (let ((style (cdr (assoc style cperl-style-alist))) setting str sym)
(while style
(setq setting (car style) style (cdr style))
- (setq str (symbol-name (car setting)))
- (and (string-match "^c-" str)
- (setq str (concat "cperl-" (substring str 2)))
- (setq sym (intern-soft str))
- (boundp sym)
- (set sym (cdr setting))))))
+ (set (car setting) (cdr setting)))))
+
+(defun cperl-set-style-back ()
+ "Restore a style memorised by `cperl-set-style'."
+ (interactive)
+ (or cperl-old-style (error "The style was not changed"))
+ (let (setting)
+ (while cperl-old-style
+ (setq setting (car cperl-old-style)
+ cperl-old-style (cdr cperl-old-style))
+ (set (car setting) (cdr setting)))))
(defun cperl-check-syntax ()
(interactive)
(require 'mode-compile)
- (let ((perl-dbg-flags "-wc"))
- (mode-compile)))
-
-(defun cperl-info-buffer ()
- ;; Returns buffer with documentation. Creates if missing
- (let ((info (get-buffer "*info-perl*")))
+ (let ((perl-dbg-flags (concat cperl-extra-perl-args " -wc")))
+ (eval '(mode-compile)))) ; Avoid a warning
+
+(defun cperl-info-buffer (type)
+ ;; Returns buffer with documentation. Creates if missing.
+ ;; If TYPE, this vars buffer.
+ ;; Special care is taken to not stomp over an existing info buffer
+ (let* ((bname (if type "*info-perl-var*" "*info-perl*"))
+ (info (get-buffer bname))
+ (oldbuf (get-buffer "*info*")))
(if info info
(save-window-excursion
;; Get Info running
(require 'info)
+ (cond (oldbuf
+ (set-buffer oldbuf)
+ (rename-buffer "*info-perl-tmp*")))
(save-window-excursion
(info))
- (Info-find-node cperl-info-page "perlfunc")
+ (Info-find-node cperl-info-page (if type "perlvar" "perlfunc"))
(set-buffer "*info*")
- (rename-buffer "*info-perl*")
+ (rename-buffer bname)
+ (cond (oldbuf
+ (set-buffer "*info-perl-tmp*")
+ (rename-buffer "*info*")
+ (set-buffer bname)))
+ (make-local-variable 'window-min-height)
+ (setq window-min-height 2)
(current-buffer)))))
(defun cperl-word-at-point (&optional p)
- ;; Returns the word at point or at P.
+ "Return the word at point or at P."
(save-excursion
(if p (goto-char p))
- (require 'etags)
- (funcall (or (and (boundp 'find-tag-default-function)
- find-tag-default-function)
- (get major-mode 'find-tag-default-function)
- ;; XEmacs 19.12 has `find-tag-default-hook'; it is
- ;; automatically used within `find-tag-default':
- 'find-tag-default))))
+ (or (cperl-word-at-point-hard)
+ (progn
+ (require 'etags)
+ (funcall (or (and (boundp 'find-tag-default-function)
+ find-tag-default-function)
+ (get major-mode 'find-tag-default-function)
+ ;; XEmacs 19.12 has `find-tag-default-hook'; it is
+ ;; automatically used within `find-tag-default':
+ 'find-tag-default))))))
(defun cperl-info-on-command (command)
- "Shows documentation for Perl command in other window."
- (interactive
+ "Show documentation for Perl command COMMAND in other window.
+If perl-info buffer is shown in some frame, uses this frame.
+Customized by setting variables `cperl-shrink-wrap-info-frame',
+`cperl-max-help-size'."
+ (interactive
(let* ((default (cperl-word-at-point))
- (read (read-string
- (format "Find doc for Perl function (default %s): "
- default))))
- (list (if (equal read "")
- default
- read))))
+ (read (read-string
+ (format "Find doc for Perl function (default %s): "
+ default))))
+ (list (if (equal read "")
+ default
+ read))))
(let ((buffer (current-buffer))
(cmd-desc (concat "^" (regexp-quote command) "[^a-zA-Z_0-9]")) ; "tr///"
- pos)
+ pos isvar height iniheight frheight buf win fr1 fr2 iniwin not-loner
+ max-height char-height buf-list)
(if (string-match "^-[a-zA-Z]$" command)
(setq cmd-desc "^-X[ \t\n]"))
- (set-buffer (cperl-info-buffer))
- (beginning-of-buffer)
- (re-search-forward "^-X[ \t\n]")
- (forward-line -1)
+ (setq isvar (string-match "^[$@%]" command)
+ buf (cperl-info-buffer isvar)
+ iniwin (selected-window)
+ fr1 (window-frame iniwin))
+ (set-buffer buf)
+ (goto-char (point-min))
+ (or isvar
+ (progn (re-search-forward "^-X[ \t\n]")
+ (forward-line -1)))
(if (re-search-forward cmd-desc nil t)
(progn
- (setq pos (progn (beginning-of-line)
- (point)))
- (pop-to-buffer (cperl-info-buffer))
+ ;; Go back to beginning of the group (ex, for qq)
+ (if (re-search-backward "^[ \t\n\f]")
+ (forward-line 1))
+ (beginning-of-line)
+ ;; Get some of
+ (setq pos (point)
+ buf-list (list buf "*info-perl-var*" "*info-perl*"))
+ (while (and (not win) buf-list)
+ (setq win (get-buffer-window (car buf-list) t))
+ (setq buf-list (cdr buf-list)))
+ (or (not win)
+ (eq (window-buffer win) buf)
+ (set-window-buffer win buf))
+ (and win (setq fr2 (window-frame win)))
+ (if (or (not fr2) (eq fr1 fr2))
+ (pop-to-buffer buf)
+ (special-display-popup-frame buf) ; Make it visible
+ (select-window win))
+ (goto-char pos) ; Needed (?!).
+ ;; Resize
+ (setq iniheight (window-height)
+ frheight (frame-height)
+ not-loner (< iniheight (1- frheight))) ; Are not alone
+ (cond ((if not-loner cperl-max-help-size
+ cperl-shrink-wrap-info-frame)
+ (setq height
+ (+ 2
+ (count-lines
+ pos
+ (save-excursion
+ (if (re-search-forward
+ "^[ \t][^\n]*\n+\\([^ \t\n\f]\\|\\'\\)" nil t)
+ (match-beginning 0) (point-max)))))
+ max-height
+ (if not-loner
+ (/ (* (- frheight 3) cperl-max-help-size) 100)
+ (setq char-height (frame-char-height))
+ ;; Non-functioning under OS/2:
+ (if (eq char-height 1) (setq char-height 18))
+ ;; Title, menubar, + 2 for slack
+ (- (/ (x-display-pixel-height) char-height) 4)))
+ (if (> height max-height) (setq height max-height))
+ ;;(message "was %s doing %s" iniheight height)
+ (if not-loner
+ (enlarge-window (- height iniheight))
+ (set-frame-height (window-frame win) (1+ height)))))
(set-window-start (selected-window) pos))
(message "No entry for %s found." command))
- (pop-to-buffer buffer)))
+ ;;(pop-to-buffer buffer)
+ (select-window iniwin)))
(defun cperl-info-on-current-command ()
- "Shows documentation for Perl command at point in other window."
+ "Show documentation for Perl command at point in other window."
(interactive)
(cperl-info-on-command (cperl-word-at-point)))
(defun cperl-imenu-info-imenu-search ()
(if (looking-at "^-X[ \t\n]") nil
(re-search-backward
- "^\n\\([-a-zA-Z]+\\)[ \t\n]")
+ "^\n\\([-a-zA-Z_]+\\)[ \t\n]")
(forward-line 1)))
-(defun cperl-imenu-info-imenu-name ()
+(defun cperl-imenu-info-imenu-name ()
(buffer-substring
(match-beginning 1) (match-end 1)))
(defun cperl-imenu-on-info ()
+ "Shows imenu for Perl Info Buffer.
+Opens Perl Info buffer if needed."
(interactive)
(let* ((buffer (current-buffer))
imenu-create-index-function
- imenu-prev-index-position-function
- imenu-extract-index-name-function
+ imenu-prev-index-position-function
+ imenu-extract-index-name-function
(index-item (save-restriction
(save-window-excursion
- (set-buffer (cperl-info-buffer))
- (setq imenu-create-index-function
+ (set-buffer (cperl-info-buffer nil))
+ (setq imenu-create-index-function
'imenu-default-create-index-function
imenu-prev-index-position-function
'cperl-imenu-info-imenu-search
MINSHIFT is the minimal amount of space to insert before the construction.
STEP is the tabwidth to position constructions.
-If STEP is `nil', `cperl-lineup-step' will be used
+If STEP is nil, `cperl-lineup-step' will be used
\(or `cperl-indent-level', if `cperl-lineup-step' is `nil').
Will not move the position at the start to the left."
(interactive "r")
- (let (search col tcol seen b e)
+ (let (search col tcol seen b)
(save-excursion
(goto-char end)
(end-of-line)
(if (looking-at "[a-zA-Z0-9_]")
(if (looking-at "\\<[a-zA-Z0-9_]+\\>")
(setq search
- (concat "\\<"
- (regexp-quote
+ (concat "\\<"
+ (regexp-quote
(buffer-substring (match-beginning 0)
(match-end 0))) "\\>"))
(error "Cannot line up in a middle of the word"))
(or minshift (setq minshift 1))
(while (progn
(beginning-of-line 2)
- (and (< (point) end)
+ (and (< (point) end)
(re-search-forward search end t)
(goto-char (match-beginning 0))))
(setq tcol (current-column) seen t)
(goto-char beg)
(setq col (+ col minshift))
(if (/= (% col step) 0) (setq step (* step (1+ (/ col step)))))
- (while
+ (while
(progn
- (setq e (point))
- (skip-chars-backward " \t")
- (delete-region (point) e)
- (indent-to-column col); (make-string (- col (current-column)) ?\ ))
- (beginning-of-line 2)
- (and (< (point) end)
+ (cperl-make-indent col)
+ (beginning-of-line 2)
+ (and (< (point) end)
(re-search-forward search end t)
(goto-char (match-beginning 0)))))))) ; No body
-(defun cperl-etags (&optional add all files)
+(defun cperl-etags (&optional add all files) ;; NOT USED???
"Run etags with appropriate options for Perl files.
If optional argument ALL is `recursive', will process Perl files
in subdirectories too."
(interactive)
(let ((cmd "etags")
- (args '("-l" "none" "-r" "/\\<\\(package\\|sub\\)[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)[ \\t]*\\([{#]\\|$\\)\\)/\\4/"))
+ (args '("-l" "none" "-r"
+ ;; 1=fullname 2=package? 3=name 4=proto? 5=attrs? (VERY APPROX!)
+ "/\\<sub[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)\\)[ \\t]*\\(([^()]*)[ \t]*\\)?\\([ \t]*:[^#{;]*\\)?\\([{#]\\|$\\)/\\3/"
+ "-r"
+ "/\\<package[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)\\)[ \\t]*\\([#;]\\|$\\)/\\1/"
+ "-r"
+ "/\\<\\(package\\)[ \\t]*;/\\1;/"))
res)
(if add (setq args (cons "-a" args)))
(or files (setq files (list buffer-file-name)))
(cond
((eq all 'recursive)
;;(error "Not implemented: recursive")
- (setq args (append (list "-e"
- "sub wanted {push @ARGV, $File::Find::name if /\\.[Pp][Llm]$/}
+ (setq args (append (list "-e"
+ "sub wanted {push @ARGV, $File::Find::name if /\\.[pP][Llm]$/}
use File::Find;
find(\\&wanted, '.');
- exec @ARGV;"
+ exec @ARGV;"
cmd) args)
cmd "perl"))
- (all
+ (all
;;(error "Not implemented: all")
- (setq args (append (list "-e"
+ (setq args (append (list "-e"
"push @ARGV, <*.PL *.pl *.pm>;
- exec @ARGV;"
+ exec @ARGV;"
cmd) args)
cmd "perl"))
(t
"Toggle the state of `cperl-auto-newline'."
(interactive)
(setq cperl-auto-newline (not cperl-auto-newline))
- (message "Newlines will %sbe auto-inserted now."
+ (message "Newlines will %sbe auto-inserted now."
(if cperl-auto-newline "" "not ")))
(defun cperl-toggle-abbrev ()
"Toggle the state of automatic keyword expansion in CPerl mode."
(interactive)
(abbrev-mode (if abbrev-mode 0 1))
- (message "Perl control structure will %sbe auto-inserted now."
+ (message "Perl control structure will %sbe auto-inserted now."
(if abbrev-mode "" "not ")))
"Toggle the state of parentheses doubling in CPerl mode."
(interactive)
(setq cperl-electric-parens (if (cperl-val 'cperl-electric-parens) 'null t))
- (message "Parentheses will %sbe auto-doubled now."
+ (message "Parentheses will %sbe auto-doubled now."
(if (cperl-val 'cperl-electric-parens) "" "not ")))
+(defun cperl-toggle-autohelp ()
+ "Toggle the state of Auto-Help on Perl constructs (put in the message area).
+Delay of auto-help controlled by `cperl-lazy-help-time'."
+ (interactive)
+ (if (fboundp 'run-with-idle-timer)
+ (progn
+ (if cperl-lazy-installed
+ (cperl-lazy-unstall)
+ (cperl-lazy-install))
+ (message "Perl help messages will %sbe automatically shown now."
+ (if cperl-lazy-installed "" "not ")))
+ (message "Cannot automatically show Perl help messages - run-with-idle-timer missing.")))
+
+(defun cperl-toggle-construct-fix ()
+ "Toggle whether `indent-region'/`indent-sexp' fix whitespace too."
+ (interactive)
+ (setq cperl-indent-region-fix-constructs
+ (if cperl-indent-region-fix-constructs
+ nil
+ 1))
+ (message "indent-region/indent-sexp will %sbe automatically fix whitespace."
+ (if cperl-indent-region-fix-constructs "" "not ")))
+
+(defun cperl-toggle-set-debug-unwind (arg &optional backtrace)
+ "Toggle (or, with numeric argument, set) debugging state of syntaxification.
+Nonpositive numeric argument disables debugging messages. The message
+summarizes which regions it was decided to rescan for syntactic constructs.
+
+The message looks like this:
+
+ Syxify req=123..138 actual=101..146 done-to: 112=>146 statepos: 73=>117
+
+Numbers are character positions in the buffer. REQ provides the range to
+rescan requested by `font-lock'. ACTUAL is the range actually resyntaxified;
+for correct operation it should start and end outside any special syntactic
+construct. DONE-TO and STATEPOS indicate changes to internal caches maintained
+by CPerl."
+ (interactive "P")
+ (or arg
+ (setq arg (if (eq cperl-syntaxify-by-font-lock
+ (if backtrace 'backtrace 'message)) 0 1)))
+ (setq arg (if (> arg 0) (if backtrace 'backtrace 'message) t))
+ (setq cperl-syntaxify-by-font-lock arg)
+ (message "Debugging messages of syntax unwind %sabled."
+ (if (eq arg t) "dis" "en")))
+
;;;; Tags file creation.
(defvar cperl-tmp-buffer " *cperl-tmp*")
(set-buffer (get-buffer-create cperl-tmp-buffer))
(set-syntax-table cperl-mode-syntax-table)
(buffer-disable-undo)
- (auto-fill-mode 0))
+ (auto-fill-mode 0)
+ (if cperl-use-syntax-table-text-property-for-tags
+ (progn
+ (make-local-variable 'parse-sexp-lookup-properties)
+ ;; Do not introduce variable if not needed, we check it!
+ (set 'parse-sexp-lookup-properties t))))
(defun cperl-xsub-scan ()
(require 'cl)
(require 'imenu)
- (let ((index-alist '())
+ (let ((index-alist '())
(prev-pos 0) index index1 name package prefix)
(goto-char (point-min))
- (imenu-progress-message prev-pos 0)
+ (if noninteractive
+ (message "Scanning XSUB for index")
+ (imenu-progress-message prev-pos 0))
;; Search for the function
(progn ;;save-match-data
(while (re-search-forward
"^\\([ \t]*MODULE\\>[^\n]*\\<PACKAGE[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9:]*\\)\\>\\|\\([a-zA-Z_][a-zA-Z_0-9]*\\)(\\|[ \t]*BOOT:\\)"
nil t)
- (imenu-progress-message prev-pos)
+ (or noninteractive
+ (imenu-progress-message prev-pos))
(cond
- ((match-beginning 2) ; SECTION
+ ((match-beginning 2) ; SECTION
(setq package (buffer-substring (match-beginning 2) (match-end 2)))
(goto-char (match-beginning 0))
(skip-chars-forward " \t")
(setq index (imenu-example--name-and-position))
(setcar index (concat package "::BOOT:"))
(push index index-alist)))))
- (imenu-progress-message prev-pos 100)
- ;;(setq index-alist
- ;; (if (default-value 'imenu-sort-function)
- ;; (sort index-alist (default-value 'imenu-sort-function))
- ;; (nreverse index-alist)))
+ (or noninteractive
+ (imenu-progress-message prev-pos 100))
index-alist))
-(defun cperl-find-tags (file xs)
- (let (ind (b (get-buffer cperl-tmp-buffer)) lst elt pos ret)
+(defvar cperl-unreadable-ok nil)
+
+(defun cperl-find-tags (ifile xs topdir)
+ (let ((b (get-buffer cperl-tmp-buffer)) ind lst elt pos ret rel
+ (cperl-pod-here-fontify nil) f file)
(save-excursion
(if b (set-buffer b)
- (cperl-setup-tmp-buf))
- (erase-buffer)
- (setq file (car (insert-file-contents file)))
- (message "Scanning file %s..." file)
- (if xs
- (setq lst (cperl-xsub-scan))
- (setq ind (imenu-example--create-perl-index))
- (setq lst (cdr (assoc "+Unsorted List+..." ind))))
- (setq lst
- (mapcar
- (function
- (lambda (elt)
- (cond ((string-match "^[_a-zA-Z]" (car elt))
- (goto-char (cdr elt))
- (list (car elt)
- (point) (count-lines 1 (point))
- (buffer-substring (progn
- (skip-chars-forward
- ":_a-zA-Z0-9")
- (or (eolp) (forward-char 1))
- (point))
- (progn
- (beginning-of-line)
- (point))))))))
- lst))
- (erase-buffer)
- (while lst
- (setq elt (car lst) lst (cdr lst))
- (if elt
- (progn
- (insert (elt elt 3)
- 127
- (if (string-match "^package " (car elt))
- (substring (car elt) 8)
- (car elt) )
- 1
- (number-to-string (elt elt 1))
- ","
- (number-to-string (elt elt 2))
- "\n")
- (if (and (string-match "^[_a-zA-Z]+::" (car elt))
- (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
- (elt elt 3)))
- ;; Need to insert the name without package as well
- (setq lst (cons (cons (substring (elt elt 3)
- (match-beginning 1)
- (match-end 1))
- (cdr elt))
- lst))))))
- (setq pos (point))
- (goto-char 1)
- (insert "\f\n" file "," (number-to-string (1- pos)) "\n")
- (setq ret (buffer-substring 1 (point-max)))
+ (cperl-setup-tmp-buf))
(erase-buffer)
- (message "Scanning file %s finished" file)
- ret)))
-
-(defun cperl-write-tags (&optional file erase recurse dir inbuffer)
+ (condition-case err
+ (setq file (car (insert-file-contents ifile)))
+ (error (if cperl-unreadable-ok nil
+ (if (y-or-n-p
+ (format "File %s unreadable. Continue? " ifile))
+ (setq cperl-unreadable-ok t)
+ (error "Aborting: unreadable file %s" ifile)))))
+ (if (not file)
+ (message "Unreadable file %s" ifile)
+ (message "Scanning file %s ..." file)
+ (if (and cperl-use-syntax-table-text-property-for-tags
+ (not xs))
+ (condition-case err ; after __END__ may have garbage
+ (cperl-find-pods-heres nil nil noninteractive)
+ (error (message "While scanning for syntax: %s" err))))
+ (if xs
+ (setq lst (cperl-xsub-scan))
+ (setq ind (cperl-imenu--create-perl-index))
+ (setq lst (cdr (assoc "+Unsorted List+..." ind))))
+ (setq lst
+ (mapcar
+ (function
+ (lambda (elt)
+ (cond ((string-match "^[_a-zA-Z]" (car elt))
+ (goto-char (cdr elt))
+ (beginning-of-line) ; pos should be of the start of the line
+ (list (car elt)
+ (point)
+ (1+ (count-lines 1 (point))) ; 1+ since at beg-o-l
+ (buffer-substring (progn
+ (goto-char (cdr elt))
+ ;; After name now...
+ (or (eolp) (forward-char 1))
+ (point))
+ (progn
+ (beginning-of-line)
+ (point))))))))
+ lst))
+ (erase-buffer)
+ (while lst
+ (setq elt (car lst) lst (cdr lst))
+ (if elt
+ (progn
+ (insert (elt elt 3)
+ 127
+ (if (string-match "^package " (car elt))
+ (substring (car elt) 8)
+ (car elt) )
+ 1
+ (number-to-string (elt elt 2)) ; Line
+ ","
+ (number-to-string (1- (elt elt 1))) ; Char pos 0-based
+ "\n")
+ (if (and (string-match "^[_a-zA-Z]+::" (car elt))
+ (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
+ (elt elt 3)))
+ ;; Need to insert the name without package as well
+ (setq lst (cons (cons (substring (elt elt 3)
+ (match-beginning 1)
+ (match-end 1))
+ (cdr elt))
+ lst))))))
+ (setq pos (point))
+ (goto-char 1)
+ (setq rel file)
+ ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
+ (set-text-properties 0 (length rel) nil rel)
+ (and (equal topdir (substring rel 0 (length topdir)))
+ (setq rel (substring file (length topdir))))
+ (insert "\f\n" rel "," (number-to-string (1- pos)) "\n")
+ (setq ret (buffer-substring 1 (point-max)))
+ (erase-buffer)
+ (or noninteractive
+ (message "Scanning file %s finished" file))
+ ret))))
+
+(defun cperl-add-tags-recurse-noxs ()
+ "Add to TAGS data for \"pure\" Perl files in the current directory and kids.
+Use as
+ emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
+ -f cperl-add-tags-recurse-noxs
+"
+ (cperl-write-tags nil nil t t nil t))
+
+(defun cperl-add-tags-recurse-noxs-fullpath ()
+ "Add to TAGS data for \"pure\" Perl in the current directory and kids.
+Writes down fullpath, so TAGS is relocatable (but if the build directory
+is relocated, the file TAGS inside it breaks). Use as
+ emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
+ -f cperl-add-tags-recurse-noxs-fullpath
+"
+ (cperl-write-tags nil nil t t nil t ""))
+
+(defun cperl-add-tags-recurse ()
+ "Add to TAGS file data for Perl files in the current directory and kids.
+Use as
+ emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
+ -f cperl-add-tags-recurse
+"
+ (cperl-write-tags nil nil t t))
+
+(defun cperl-write-tags (&optional file erase recurse dir inbuffer noxs topdir)
;; If INBUFFER, do not select buffer, and do not save
;; If ERASE is `ignore', do not erase, and do not try to delete old info.
(require 'etags)
(if file nil
(setq file (if dir default-directory (buffer-file-name)))
(if (and (not dir) (buffer-modified-p)) (error "Save buffer first!")))
+ (or topdir
+ (setq topdir default-directory))
(let ((tags-file-name "TAGS")
(case-fold-search (eq system-type 'emx))
- xs)
+ xs rel tm)
(save-excursion
(cond (inbuffer nil) ; Already there
((file-exists-p tags-file-name)
- (visit-tags-table-buffer tags-file-name))
+ (if cperl-xemacs-p
+ (visit-tags-table-buffer)
+ (visit-tags-table-buffer tags-file-name)))
(t (set-buffer (find-file-noselect tags-file-name))))
(cond
(dir
(erase
(erase-buffer)
(setq erase 'ignore)))
- (let ((files
- (directory-files file t (if recurse nil "\\.[Pp][Llm]$") t)))
- (mapcar (function (lambda (file)
- (cond
- ((string-match "/\\.\\.?$" file) nil)
- ((not (file-directory-p file))
- (if (string-match "\\.\\([Pp][Llm]\\|xs\\)$" file)
- (cperl-write-tags file erase recurse nil t)))
- ((not recurse) nil)
- (t (cperl-write-tags file erase recurse t t)))))
- files))
- )
+ (let ((files
+ (condition-case err
+ (directory-files file t
+ (if recurse nil cperl-scan-files-regexp)
+ t)
+ (error
+ (if cperl-unreadable-ok nil
+ (if (y-or-n-p
+ (format "Directory %s unreadable. Continue? " file))
+ (setq cperl-unreadable-ok t
+ tm nil) ; Return empty list
+ (error "Aborting: unreadable directory %s" file)))))))
+ (mapcar (function
+ (lambda (file)
+ (cond
+ ((string-match cperl-noscan-files-regexp file)
+ nil)
+ ((not (file-directory-p file))
+ (if (string-match cperl-scan-files-regexp file)
+ (cperl-write-tags file erase recurse nil t noxs topdir)))
+ ((not recurse) nil)
+ (t (cperl-write-tags file erase recurse t t noxs topdir)))))
+ files)))
(t
(setq xs (string-match "\\.xs$" file))
- (cond ((eq erase 'ignore) nil)
- (erase (erase-buffer))
- (t
- (goto-char 1)
- (if (search-forward (concat "\f\n" file ",") nil t)
- (progn
- (search-backward "\f\n")
- (delete-region (point)
- (progn
- (forward-char 1)
- (search-forward "\f\n" nil 'toend)
- (point)))
- (goto-char 1)))))
- (insert (cperl-find-tags file xs))))
- (if inbuffer nil ; Delegate to the caller
- (save-buffer 0) ; No backup
- (initialize-new-tags-table)))))
+ (if (not (and xs noxs))
+ (progn
+ (cond ((eq erase 'ignore) (goto-char (point-max)))
+ (erase (erase-buffer))
+ (t
+ (goto-char 1)
+ (setq rel file)
+ ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
+ (set-text-properties 0 (length rel) nil rel)
+ (and (equal topdir (substring rel 0 (length topdir)))
+ (setq rel (substring file (length topdir))))
+ (if (search-forward (concat "\f\n" rel ",") nil t)
+ (progn
+ (search-backward "\f\n")
+ (delete-region (point)
+ (save-excursion
+ (forward-char 1)
+ (if (search-forward "\f\n"
+ nil 'toend)
+ (- (point) 2)
+ (point-max)))))
+ (goto-char (point-max)))))
+ (insert (cperl-find-tags file xs topdir))))))
+ (if inbuffer nil ; Delegate to the caller
+ (save-buffer 0) ; No backup
+ (if (fboundp 'initialize-new-tags-table) ; Do we need something special in XEmacs?
+ (initialize-new-tags-table))))))
(defvar cperl-tags-hier-regexp-list
- "^\\(\\(package\\)\\>\\|sub\\>[^\n]+::\\|[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::\\|[ \t]*BOOT:\C-?[^\n]+::\\)")
+ (concat
+ "^\\("
+ "\\(package\\)\\>"
+ "\\|"
+ "sub\\>[^\n]+::"
+ "\\|"
+ "[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::" ; XSUB?
+ "\\|"
+ "[ \t]*BOOT:\C-?[^\n]+::" ; BOOT section
+ "\\)"))
(defvar cperl-hierarchy '(() ())
- "Global hierarchy of classes")
+ "Global hierarchy of classes.")
(defun cperl-tags-hier-fill ()
;; Suppose we are in a tag table cooked by cperl.
(goto-char 1)
(let (type pack name pos line chunk ord cons1 file str info fileind)
(while (re-search-forward cperl-tags-hier-regexp-list nil t)
- (setq pos (match-beginning 0)
+ (setq pos (match-beginning 0)
pack (match-beginning 2))
(beginning-of-line)
- (if (looking-at "\\([^\n]+\\)\C-?\\([^\n]+\\)\C-a\\([0-9]+\\),\\([0-9]+\\)")
+ (if (looking-at (concat
+ "\\([^\n]+\\)"
+ "\C-?"
+ "\\([^\n]+\\)"
+ "\C-a"
+ "\\([0-9]+\\)"
+ ","
+ "\\([0-9]+\\)"))
(progn
(setq ;;str (buffer-substring (match-beginning 1) (match-end 1))
name (buffer-substring (match-beginning 2) (match-end 2))
;;pos (buffer-substring (match-beginning 3) (match-end 3))
- line (buffer-substring (match-beginning 4) (match-end 4))
+ line (buffer-substring (match-beginning 3) (match-end 3))
ord (if pack 1 0)
- info (etags-snarf-tag) ; Moves to beginning of the next line
file (file-of-tag)
- fileind (format "%s:%s" file line))
+ fileind (format "%s:%s" file line)
+ ;; Moves to beginning of the next line:
+ info (cperl-etags-snarf-tag file line))
;; Move back
(forward-char -1)
;; Make new member of hierarchy name ==> file ==> pos if needed
(cdr cons1)))
;; First occurrence of the name, start alist
(setq cons1 (cons name (list (cons fileind (vector file info)))))
- (if pack
+ (if pack
(setcar (cdr cperl-hierarchy)
(cons cons1 (nth 1 cperl-hierarchy)))
(setcar cperl-hierarchy
(require 'etags)
(require 'imenu)
(if (or update (null (nth 2 cperl-hierarchy)))
- (let (pack name cons1 to l1 l2 l3 l4
- (remover (function (lambda (elt) ; (name (file1...) (file2..))
- (or (nthcdr 2 elt)
- ;; Only in one file
- (setcdr elt (cdr (nth 1 elt))))))))
+ (let ((remover (function (lambda (elt) ; (name (file1...) (file2..))
+ (or (nthcdr 2 elt)
+ ;; Only in one file
+ (setcdr elt (cdr (nth 1 elt)))))))
+ pack name cons1 to l1 l2 l3 l4 b)
;; (setq cperl-hierarchy '(() () ())) ; Would write into '() later!
(setq cperl-hierarchy (list l1 l2 l3))
- (or tags-table-list
- (call-interactively 'visit-tags-table))
- (message "Updating list of classes...")
- (mapcar
- (function
- (lambda (tagsfile)
- (set-buffer (get-file-buffer tagsfile))
- (cperl-tags-hier-fill)))
- tags-table-list)
+ (if cperl-xemacs-p ; Not checked
+ (progn
+ (or tags-file-name
+ ;; Does this work in XEmacs?
+ (call-interactively 'visit-tags-table))
+ (message "Updating list of classes...")
+ (set-buffer (get-file-buffer tags-file-name))
+ (cperl-tags-hier-fill))
+ (or tags-table-list
+ (call-interactively 'visit-tags-table))
+ (mapcar
+ (function
+ (lambda (tagsfile)
+ (message "Updating list of classes... %s" tagsfile)
+ (set-buffer (get-file-buffer tagsfile))
+ (cperl-tags-hier-fill)))
+ tags-table-list)
+ (message "Updating list of classes... postprocessing..."))
(mapcar remover (car cperl-hierarchy))
(mapcar remover (nth 1 cperl-hierarchy))
(setq to (list nil (cons "Packages: " (nth 1 cperl-hierarchy))
(error "No items found"))
(setq update
;;; (imenu-choose-buffer-index "Packages: " (nth 2 cperl-hierarchy))
- (if window-system
+ (if (if (fboundp 'display-popup-menus-p)
+ (let ((f 'display-popup-menus-p))
+ (funcall f))
+ window-system)
(x-popup-menu t (nth 2 cperl-hierarchy))
(require 'tmm)
- (tmm-prompt t (nth 2 cperl-hierarchy))))
+ (tmm-prompt (nth 2 cperl-hierarchy))))
(if (and update (listp update))
(progn (while (cdr update) (setq update (cdr update)))
(setq update (car update)))) ; Get the last from the list
- (if (vectorp update)
+ (if (vectorp update)
(progn
(find-file (elt update 0))
- (etags-goto-tag-location (elt update 1))))
+ (cperl-etags-goto-tag-location (elt update 1))))
(if (eq update -999) (cperl-tags-hier-init t)))
(defun cperl-tags-treeify (to level)
- ;; cadr of to is read-write. On start it is a cons
- (let* ((regexp (concat "^\\(" (mapconcat
+ ;; cadr of `to' is read-write. On start it is a cons
+ (let* ((regexp (concat "^\\(" (mapconcat
'identity
(make-list level "[_a-zA-Z0-9]+")
"::")
l1 head tail cons1 cons2 ord writeto packs recurse
root-packages root-functions ms many_ms same_name ps
(move-deeper
- (function
+ (function
(lambda (elt)
(cond ((and (string-match regexp (car elt))
(or (eq ord 1) (match-end 2)))
(setq head (substring (car elt) 0 (match-end 1))
- tail (if (match-end 2) (substring (car elt)
+ tail (if (match-end 2) (substring (car elt)
(match-end 2)))
recurse t)
(if (setq cons1 (assoc head writeto)) nil
(mapcar (function (lambda (elt)
(cperl-tags-treeify elt (1+ level))))
(cdr to)))
- ;; Now add back functions removed from display
- (mapcar (function (lambda (elt)
- (setcdr to (cons elt (cdr to)))))
- root-functions)
- ;; Now add back packages removed from display
- (mapcar (function (lambda (elt)
- (setcdr to (cons (cons (concat "package " (car elt))
- (cdr elt))
- (cdr to)))))
- root-packages)
;;Now clean up leaders with one child only
(mapcar (function (lambda (elt)
- (if (not (and (listp (cdr elt))
+ (if (not (and (listp (cdr elt))
(eq (length elt) 2))) nil
(setcar elt (car (nth 1 elt)))
(setcdr elt (cdr (nth 1 elt))))))
(cdr to))
- ))
+ ;; Sort the roots of subtrees
+ (if (default-value 'imenu-sort-function)
+ (setcdr to
+ (sort (cdr to) (default-value 'imenu-sort-function))))
+ ;; Now add back functions removed from display
+ (mapcar (function (lambda (elt)
+ (setcdr to (cons elt (cdr to)))))
+ (if (default-value 'imenu-sort-function)
+ (nreverse
+ (sort root-functions (default-value 'imenu-sort-function)))
+ root-functions))
+ ;; Now add back packages removed from display
+ (mapcar (function (lambda (elt)
+ (setcdr to (cons (cons (concat "package " (car elt))
+ (cdr elt))
+ (cdr to)))))
+ (if (default-value 'imenu-sort-function)
+ (nreverse
+ (sort root-packages (default-value 'imenu-sort-function)))
+ root-packages))))
;;;(x-popup-menu t
-;;; '(keymap "Name1"
+;;; '(keymap "Name1"
;;; ("Ret1" "aa")
-;;; ("Head1" "ab"
-;;; keymap "Name2"
+;;; ("Head1" "ab"
+;;; keymap "Name2"
;;; ("Tail1" "x") ("Tail2" "y"))))
(defun cperl-list-fold (list name limit)
(if (<= (length list) limit) list
(setq list1 nil list2 nil)
(while list
- (setq num (1+ num)
+ (setq num (1+ num)
elt1 (car list)
list (cdr list))
(if (<= num imenu-max-items)
(defun cperl-menu-to-keymap (menu &optional name)
(let (list)
- (cons 'keymap
- (mapcar
- (function
+ (cons 'keymap
+ (mapcar
+ (function
(lambda (elt)
(cond ((listp (cdr elt))
(setq list (cperl-list-fold
(cons (car elt)
(cperl-menu-to-keymap list))))
(t
- (list (cdr elt) (car elt))))))
+ (list (cdr elt) (car elt) t))))) ; t is needed in 19.34
(cperl-list-fold menu "Root" imenu-max-items)))))
\f
(defvar cperl-bad-style-regexp
(mapconcat 'identity
- '("[^-\n\t <>=+!.&|(*/'`\"#^][-=+<>!|&^]" ; char sign
- "[-<>=+^&|]+[^- \t\n=+<>~]" ; sign+ char
- )
- "\\|")
+ '("[^-\n\t <>=+!.&|(*/'`\"#^][-=+<>!|&^]" ; char sign
+ "[-<>=+^&|]+[^- \t\n=+<>~]") ; sign+ char
+ "\\|")
"Finds places such that insertion of a whitespace may help a lot.")
-(defvar cperl-not-bad-style-regexp
- (mapconcat 'identity
+(defvar cperl-not-bad-style-regexp
+ (mapconcat
+ 'identity
'("[^-\t <>=+]\\(--\\|\\+\\+\\)" ; var-- var++
- "[a-zA-Z0-9][|&][a-zA-Z0-9$]" ; abc|def abc&def are often used.
- "&[(a-zA-Z0-9$]" ; &subroutine &(var->field)
- "<\\$?\\sw+\\(\\.\\sw+\\)?>" ; <IN> <stdin.h>
- "-[a-zA-Z][ \t]+[_$\"'`]" ; -f file
+ "[a-zA-Z0-9_][|&][a-zA-Z0-9_$]" ; abc|def abc&def are often used.
+ "&[(a-zA-Z0-9_$]" ; &subroutine &(var->field)
+ "<\\$?\\sw+\\(\\.\\(\\sw\\|_\\)+\\)?>" ; <IN> <stdin.h>
+ "-[a-zA-Z][ \t]+[_$\"'`a-zA-Z]" ; -f file, -t STDIN
"-[0-9]" ; -5
"\\+\\+" ; ++var
"--" ; --var
".->" ; a->b
"->" ; a SPACE ->b
"\\[-" ; a[-1]
+ "\\\\[&$@*\\\\]" ; \&func
"^=" ; =head
+ "\\$." ; $|
+ "<<[a-zA-Z_'\"`]" ; <<FOO, <<'FOO'
"||"
"&&"
"[CBIXSLFZ]<\\(\\sw\\|\\s \\|\\s_\\|[\n]\\)*>" ; C<code like text>
- "-[a-zA-Z0-9]+[ \t]*=>" ; -option => value
+ "-[a-zA-Z_0-9]+[ \t]*=>" ; -option => value
;; Unaddressed trouble spots: = -abc, f(56, -abc) --- specialcased below
;;"[*/+-|&<.]+="
)
(interactive)
(let (found-bad (p (point)))
(setq last-nonmenu-event 13) ; To disable popup
- (beginning-of-buffer)
+ (goto-char (point-min))
(map-y-or-n-p "Insert space here? "
- (function (lambda (arg) (insert " ")))
+ (lambda (arg) (insert " "))
'cperl-next-bad-style
- '("location" "locations" "insert a space into")
+ '("location" "locations" "insert a space into")
'((?\C-r (lambda (arg)
(let ((buffer-quit-function
'exit-recursive-edit))
(message "Exit with Esc Esc")
(recursive-edit)
t)) ; Consider acted upon
- "edit, exit with Esc Esc")
+ "edit, exit with Esc Esc")
(?e (lambda (arg)
(let ((buffer-quit-function
'exit-recursive-edit))
(and (eq (following-char) ?\-)
(save-excursion
(skip-chars-backward " \t\n")
- (memq (preceding-char) '(?\= ?\> ?\< ?\, ?\(, ?\[, ?\{))))
+ (memq (preceding-char) '(?\= ?\> ?\< ?\, ?\( ?\[ ?\{))))
;; Now check for syntax type
(save-match-data
(setq found (point))
found-bad found)))
(not not-found)))
-\ 6
+\f
;;; Getting help
-(defvar cperl-have-help-regexp
+(defvar cperl-have-help-regexp
;;(concat "\\("
(mapconcat
'identity
- '("[$@%*&][0-9a-zA-Z_:]+" ; Usual variable
+ '("[$@%*&][0-9a-zA-Z_:]+\\([ \t]*[[{]\\)?" ; Usual variable
"[$@]\\^[a-zA-Z]" ; Special variable
"[$@][^ \n\t]" ; Special variable
"-[a-zA-Z]" ; File test
"\\\\[a-zA-Z0]" ; Special chars
+ "^=[a-z][a-zA-Z0-9_]*" ; POD sections
"[-!&*+,-./<=>?\\\\^|~]+" ; Operator
"[a-zA-Z_0-9:]+" ; symbol or number
"x="
- "#!"
- )
+ "#!")
;;"\\)\\|\\("
- "\\|"
- )
- ;;"\\)"
- ;;)
+ "\\|")
+ ;;"\\)"
+ ;;)
"Matches places in the buffer we can find help for.")
(defvar cperl-message-on-help-error t)
+(defvar cperl-help-from-timer nil)
+
+(defun cperl-word-at-point-hard ()
+ ;; Does not save-excursion
+ ;; Get to the something meaningful
+ (or (eobp) (eolp) (forward-char 1))
+ (re-search-backward "[-a-zA-Z0-9_:!&*+,-./<=>?\\\\^|~$%@]"
+ (save-excursion (beginning-of-line) (point))
+ 'to-beg)
+ ;; (cond
+ ;; ((or (eobp) (looking-at "[][ \t\n{}();,]")) ; Not at a symbol
+ ;; (skip-chars-backward " \n\t\r({[]});,")
+ ;; (or (bobp) (backward-char 1))))
+ ;; Try to backtrace
+ (cond
+ ((looking-at "[a-zA-Z0-9_:]") ; symbol
+ (skip-chars-backward "a-zA-Z0-9_:")
+ (cond
+ ((and (eq (preceding-char) ?^) ; $^I
+ (eq (char-after (- (point) 2)) ?\$))
+ (forward-char -2))
+ ((memq (preceding-char) (append "*$@%&\\" nil)) ; *glob
+ (forward-char -1))
+ ((and (eq (preceding-char) ?\=)
+ (eq (current-column) 1))
+ (forward-char -1))) ; =head1
+ (if (and (eq (preceding-char) ?\<)
+ (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <FH>
+ (forward-char -1)))
+ ((and (looking-at "=") (eq (preceding-char) ?x)) ; x=
+ (forward-char -1))
+ ((and (looking-at "\\^") (eq (preceding-char) ?\$)) ; $^I
+ (forward-char -1))
+ ((looking-at "[-!&*+,-./<=>?\\\\^|~]")
+ (skip-chars-backward "-!&*+,-./<=>?\\\\^|~")
+ (cond
+ ((and (eq (preceding-char) ?\$)
+ (not (eq (char-after (- (point) 2)) ?\$))) ; $-
+ (forward-char -1))
+ ((and (eq (following-char) ?\>)
+ (string-match "[a-zA-Z0-9_]" (char-to-string (preceding-char)))
+ (save-excursion
+ (forward-sexp -1)
+ (and (eq (preceding-char) ?\<)
+ (looking-at "\\$?[a-zA-Z0-9_:]+>")))) ; <FH>
+ (search-backward "<"))))
+ ((and (eq (following-char) ?\$)
+ (eq (preceding-char) ?\<)
+ (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <$fh>
+ (forward-char -1)))
+ (if (looking-at cperl-have-help-regexp)
+ (buffer-substring (match-beginning 0) (match-end 0))))
(defun cperl-get-help ()
"Get one-line docs on the symbol at the point.
The data for these docs is a little bit obsolete and may be in fact longer
-than a line. Your contribution to update/shorten it is appreciated."
+than a line. Your contribution to update/shorten it is appreciated."
(interactive)
- (save-excursion
- ;; Get to the something meaningful
- (or (eobp) (eolp) (forward-char 1))
- (re-search-backward "[-a-zA-Z0-9_:!&*+,-./<=>?\\\\^|~$%@]"
- (save-excursion (beginning-of-line) (point))
- 'to-beg)
- ;; (cond
- ;; ((or (eobp) (looking-at "[][ \t\n{}();,]")) ; Not at a symbol
- ;; (skip-chars-backward " \n\t\r({[]});,")
- ;; (or (bobp) (backward-char 1))))
- ;; Try to backtrace
- (cond
- ((looking-at "[a-zA-Z0-9_:]") ; symbol
- (skip-chars-backward "[a-zA-Z0-9_:]")
- (cond
- ((and (eq (preceding-char) ?^) ; $^I
- (eq (char-after (- (point) 2)) ?\$))
- (forward-char -2))
- ((memq (preceding-char) (append "*$@%&\\" nil)) ; *glob
- (forward-char -1)))
- (if (and (eq (preceding-char) ?\<)
- (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <FH>
- (forward-char -1)))
- ((and (looking-at "=") (eq (preceding-char) ?x)) ; x=
- (forward-char -1))
- ((and (looking-at "\\^") (eq (preceding-char) ?\$)) ; $^I
- (forward-char -1))
- ((looking-at "[-!&*+,-./<=>?\\\\^|~]")
- (skip-chars-backward "[-!&*+,-./<=>?\\\\^|~]")
- (cond
- ((and (eq (preceding-char) ?\$)
- (not (eq (char-after (- (point) 2)) ?\$))) ; $-
- (forward-char -1))
- ((and (eq (following-char) ?\>)
- (string-match "[a-zA-Z0-9_]" (char-to-string (preceding-char)))
- (save-excursion
- (forward-sexp -1)
- (and (eq (preceding-char) ?\<)
- (looking-at "\\$?[a-zA-Z0-9_:]+>")))) ; <FH>
- (search-backward "<"))))
- ((and (eq (following-char) ?\$)
- (eq (preceding-char) ?\<)
- (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <$fh>
- (forward-char -1)))
- ;;(or (eobp) (forward-char 1))
- (if (looking-at cperl-have-help-regexp)
- (cperl-describe-perl-symbol
- (buffer-substring (match-beginning 0) (match-end 0)))
- (if cperl-message-on-help-error
- (message "Nothing found for %s..."
- (buffer-substring (point) (+ 5 (point))))))))
+ (save-match-data ; May be called "inside" query-replace
+ (save-excursion
+ (let ((word (cperl-word-at-point-hard)))
+ (if word
+ (if (and cperl-help-from-timer ; Bail out if not in mainland
+ (not (string-match "^#!\\|\\\\\\|^=" word)) ; Show help even in comments/strings.
+ (or (memq (get-text-property (point) 'face)
+ '(font-lock-comment-face font-lock-string-face))
+ (memq (get-text-property (point) 'syntax-type)
+ '(pod here-doc format))))
+ nil
+ (cperl-describe-perl-symbol word))
+ (if cperl-message-on-help-error
+ (message "Nothing found for %s..."
+ (buffer-substring (point) (min (+ 5 (point)) (point-max))))))))))
;;; Stolen from perl-descr.el by Johan Vromans:
(defun cperl-describe-perl-symbol (val)
"Display the documentation of symbol at point, a Perl operator."
- ;; We suppose that the current position is at the start of the symbol
- ;; when we convert $_[5] to @_
- (let (;;(fn (perl-symbol-at-point))
- (enable-recursive-minibuffers t)
- ;;val
+ (let ((enable-recursive-minibuffers t)
args-file regexp)
- ;; (interactive
- ;; (let ((fn (perl-symbol-at-point))
- ;; (enable-recursive-minibuffers t)
- ;; val args-file regexp)
- ;; (setq val (read-from-minibuffer
- ;; (if fn
- ;; (format "Symbol (default %s): " fn)
- ;; "Symbol: ")))
- ;; (if (string= val "")
- ;; (setq val fn))
(cond
- ((string-match "^[&*][a-zA-Z_]" val)
- (setq val (concat (substring val 0 1) "NAME")))
- ((looking-at "[$@][a-zA-Z_:0-9]+\\([[{]\\)")
- (if (= ?\[ (char-after (match-beginning 1)))
- (setq val (concat "@" (substring val 1)))
- (setq val (concat "%" (substring val 1)))))
- ((and (string= val "x") (looking-at "x="))
- (setq val "x="))
- ((string-match "^\\$[\C-a-\C-z]" val)
- (setq val (concat "$^" (char-to-string (+ ?A -1 (aref val 1))))))
- ((and (string= "<" val) (looking-at "<\\$?[a-zA-Z0-9_:]+>"))
- (setq val "<NAME>")))
-;;; (if (string-match "^[&*][a-zA-Z_]" val)
-;;; (setq val (concat (substring val 0 1) "NAME"))
-;;; (if (looking-at "[$@][a-zA-Z_:0-9]+\\([[{]\\)")
-;;; (if (= ?\[ (char-after (match-beginning 1)))
-;;; (setq val (concat "@" (substring val 1)))
-;;; (setq val (concat "%" (substring val 1))))
-;;; (if (and (string= val "x") (looking-at "x="))
-;;; (setq val "x=")
-;;; (if (looking-at "[$@][a-zA-Z_:0-9]")
-;;; ))))
- (setq regexp (concat "^" "\\([^a-zA-Z0-9_:]+[ \t]\\)?"
- (regexp-quote val)
+ ((string-match "^[&*][a-zA-Z_]" val)
+ (setq val (concat (substring val 0 1) "NAME")))
+ ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*\\[" val)
+ (setq val (concat "@" (substring val 1 (match-end 1)))))
+ ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*{" val)
+ (setq val (concat "%" (substring val 1 (match-end 1)))))
+ ((and (string= val "x") (string-match "^x=" val))
+ (setq val "x="))
+ ((string-match "^\\$[\C-a-\C-z]" val)
+ (setq val (concat "$^" (char-to-string (+ ?A -1 (aref val 1))))))
+ ((string-match "^CORE::" val)
+ (setq val "CORE::"))
+ ((string-match "^SUPER::" val)
+ (setq val "SUPER::"))
+ ((and (string= "<" val) (string-match "^<\\$?[a-zA-Z0-9_:]+>" val))
+ (setq val "<NAME>")))
+ (setq regexp (concat "^"
+ "\\([^a-zA-Z0-9_:]+[ \t]+\\)?"
+ (regexp-quote val)
"\\([ \t([/]\\|$\\)"))
;; get the buffer with the documentation text
;; lookup in the doc
(goto-char (point-min))
(let ((case-fold-search nil))
- (list
+ (list
(if (re-search-forward regexp (point-max) t)
(save-excursion
(beginning-of-line 1)
(if cperl-message-on-help-error
(message "No definition for %s" val)))))))
-(defvar cperl-short-docs "Ignore my value"
+(defvar cperl-short-docs 'please-ignore-this-line
+ ;; Perl4 version was written by Johan Vromans (jvromans@squirrel.nl)
"# based on '@(#)@ perl-descr.el 1.9 - describe-perl-symbol' [Perl 5]
-! Logical negation.
-!= Numeric inequality.
-!~ Search pattern, substitution, or translation (negated).
-$! In numeric context: errno. In a string context: error string.
+... Range (list context); flip/flop [no flop when flip] (scalar context).
+! ... Logical negation.
+... != ... Numeric inequality.
+... !~ ... Search pattern, substitution, or translation (negated).
+$! In numeric context: errno. In a string context: error string.
$\" The separator which joins elements of arrays interpolated in strings.
-$# The output format for printed numbers. Initial value is %.20g.
-$$ The process number of the perl running this script. Altered (in the child process) by fork().
+$# The output format for printed numbers. Default is %.15g or close.
+$$ Process number of this script. Changes in the fork()ed child process.
$% The current page number of the currently selected output channel.
The following variables are always local to the current block:
$- The number of lines left on the page.
$. The current input line number of the last filehandle that was read.
$/ The input record separator, newline by default.
-$0 The name of the file containing the perl script being executed. May be set
-$: The set of characters after which a string may be broken to fill continuation fields (starting with ^) in a format.
-$; The subscript separator for multi-dimensional array emulation. Default is \"\\034\".
+$0 Name of the file containing the current perl script (read/write).
+$: String may be broken after these characters to fill ^-lines in a format.
+$; Subscript separator for multi-dim array emulation. Default \"\\034\".
$< The real uid of this process.
-$= The page length of the current output channel. Default is 60 lines.
+$= The page length of the current output channel. Default is 60 lines.
$> The effective uid of this process.
$? The status returned by the last ``, pipe close or `system'.
$@ The perl error message from the last eval or do @var{EXPR} command.
$^F The highest system file descriptor, ordinarily 2.
$^H The current set of syntax checks enabled by `use strict'.
$^I The value of the in-place edit extension (perl -i option).
-$^L What formats output to perform a formfeed. Default is \f.
+$^L What formats output to perform a formfeed. Default is \f.
+$^M A buffer for emergency memory allocation when running out of memory.
$^O The operating system name under which this copy of Perl was built.
$^P Internal debugging flag.
-$^T The time the script was started. Used by -A/-M/-C file tests.
+$^T The time the script was started. Used by -A/-M/-C file tests.
$^W True if warnings are requested (perl -w flag).
$^X The name under which perl was invoked (argv[0] in C-speech).
$_ The default input and pattern-searching space.
-$| Flag for auto-flush after write/print on the currently selected output channel. Default is 0.
+$| Auto-flush after write/print on current output channel? Default 0.
$~ The name of the current report format.
-% Modulo division.
-%= Modulo division assignment.
+... % ... Modulo division.
+... %= ... Modulo division assignment.
%ENV Contains the current environment.
%INC List of files that have been require-d or do-ne.
%SIG Used to set signal handlers for various signals.
-& Bitwise and.
-&& Logical and.
-&&= Logical and assignment.
-&= Bitwise and assignment.
-* Multiplication.
-** Exponentiation.
-*NAME Refers to all objects represented by NAME. *NAM1 = *NAM2 makes NAM1 a reference to NAM2.
-&NAME(arg0, ...) Subroutine call. Arguments go to @_.
-+ Addition.
-++ Auto-increment (magical on strings).
-+= Addition assignment.
+... & ... Bitwise and.
+... && ... Logical and.
+... &&= ... Logical and assignment.
+... &= ... Bitwise and assignment.
+... * ... Multiplication.
+... ** ... Exponentiation.
+*NAME Glob: all objects refered by NAME. *NAM1 = *NAM2 aliases NAM1 to NAM2.
+&NAME(arg0, ...) Subroutine call. Arguments go to @_.
+... + ... Addition. +EXPR Makes EXPR into scalar context.
+++ Auto-increment (magical on strings). ++EXPR EXPR++
+... += ... Addition assignment.
, Comma operator.
-- Subtraction.
--- Auto-decrement.
--= Subtraction assignment.
+... - ... Subtraction.
+-- Auto-decrement (NOT magical on strings). --EXPR EXPR--
+... -= ... Subtraction assignment.
-A Access time in days since script started.
-B File is a non-text (binary) file.
-C Inode change time in days since script started.
-x File is executable by effective uid.
-z File has zero size.
. Concatenate strings.
-.. Alternation, also range operator.
+.. Range (list context); flip/flop (scalar context) operator.
.= Concatenate assignment strings
-/ Division. /PATTERN/ioxsmg Pattern match
-/= Division assignment.
+... / ... Division. /PATTERN/ioxsmg Pattern match
+... /= ... Division assignment.
/PATTERN/ioxsmg Pattern match.
-< Numeric less than. <pattern> Glob. See <NAME>, <> as well.
-<NAME> Reads line from filehandle NAME. NAME must be bareword/dollar-bareword.
-<pattern> Glob. (Unless pattern is bareword/dollar-bareword - see <NAME>)
+... < ... Numeric less than. <pattern> Glob. See <NAME>, <> as well.
+<NAME> Reads line from filehandle NAME (a bareword or dollar-bareword).
+<pattern> Glob (Unless pattern is bareword/dollar-bareword - see <NAME>).
<> Reads line from union of files in @ARGV (= command line) and STDIN.
-<< Bitwise shift left. << start of HERE-DOCUMENT.
-<= Numeric less than or equal to.
-<=> Numeric compare.
-= Assignment.
-== Numeric equality.
-=~ Search pattern, substitution, or translation
-> Numeric greater than.
->= Numeric greater than or equal to.
->> Bitwise shift right.
->>= Bitwise shift right assignment.
-? : Alternation (if-then-else) operator. ?PAT? Backwards pattern match.
-?PATTERN? Backwards pattern match.
+... << ... Bitwise shift left. << start of HERE-DOCUMENT.
+... <= ... Numeric less than or equal to.
+... <=> ... Numeric compare.
+... = ... Assignment.
+... == ... Numeric equality.
+... =~ ... Search pattern, substitution, or translation
+... > ... Numeric greater than.
+... >= ... Numeric greater than or equal to.
+... >> ... Bitwise shift right.
+... >>= ... Bitwise shift right assignment.
+... ? ... : ... Condition=if-then-else operator. ?PAT? One-time pattern match.
+?PATTERN? One-time pattern match.
@ARGV Command line arguments (not including the command name - see $0).
@INC List of places to look for perl scripts during do/include/use.
-@_ Parameter array for subroutines. Also used by split unless in array context.
-\\ Creates a reference to whatever follows, like \$var.
+@_ Parameter array for subroutines; result of split() unless in list context.
+\\ Creates reference to what follows, like \$var, or quotes non-\w in strings.
\\0 Octal char, e.g. \\033.
-\\E Case modification terminator. See \\Q, \\L, and \\U.
-\\L Lowercase until \\E .
-\\U Upcase until \\E .
-\\Q Quote metacharacters until \\E .
+\\E Case modification terminator. See \\Q, \\L, and \\U.
+\\L Lowercase until \\E . See also \\l, lc.
+\\U Upcase until \\E . See also \\u, uc.
+\\Q Quote metacharacters until \\E . See also quotemeta.
\\a Alarm character (octal 007).
\\b Backspace character (octal 010).
\\c Control character, e.g. \\c[ .
\\e Escape character (octal 033).
\\f Formfeed character (octal 014).
-\\l Lowercase of next character. See also \\L and \\u,
-\\n Newline character (octal 012).
-\\r Return character (octal 015).
+\\l Lowercase the next character. See also \\L and \\u, lcfirst.
+\\n Newline character (octal 012 on most systems).
+\\r Return character (octal 015 on most systems).
\\t Tab character (octal 011).
-\\u Upcase of next character. See also \\U and \\l,
+\\u Upcase the next character. See also \\U and \\l, ucfirst.
\\x Hex character, e.g. \\x1b.
-^ Bitwise exclusive or.
-__END__ End of program source.
-__DATA__ End of program source.
+... ^ ... Bitwise exclusive or.
+__END__ Ends program source.
+__DATA__ Ends program source.
__FILE__ Current (source) filename.
__LINE__ Current line in current source.
-ARGV Default multi-file input filehandle. <ARGV> is a synonym for <>.
+__PACKAGE__ Current package.
+ARGV Default multi-file input filehandle. <ARGV> is a synonym for <>.
ARGVOUT Output filehandle with -i flag.
-BEGIN { block } Immediately executed (during compilation) piece of code.
-END { block } Pseudo-subroutine executed after the script finishes.
+BEGIN { ... } Immediately executed (during compilation) piece of code.
+END { ... } Pseudo-subroutine executed after the script finishes.
+CHECK { ... } Pseudo-subroutine executed after the script is compiled.
+INIT { ... } Pseudo-subroutine executed before the script starts running.
DATA Input filehandle for what follows after __END__ or __DATA__.
accept(NEWSOCKET,GENERICSOCKET)
alarm(SECONDS)
chroot(FILENAME)
close(FILEHANDLE)
closedir(DIRHANDLE)
-cmp String compare.
+... cmp ... String compare.
connect(SOCKET,NAME)
-continue of { block } continue { block }. Is executed after `next' or at end.
+continue of { block } continue { block }. Is executed after `next' or at end.
cos(EXPR)
crypt(PLAINTEXT,SALT)
-dbmclose(ASSOC_ARRAY)
-dbmopen(ASSOC,DBNAME,MODE)
+dbmclose(%HASH)
+dbmopen(%HASH,DBNAME,MODE)
defined(EXPR)
-delete($ASSOC{KEY})
+delete($HASH{KEY})
die(LIST)
do { ... }|SUBR while|until EXPR executes at least once
-do(EXPR|SUBR([LIST]))
+do(EXPR|SUBR([LIST])) (with while|until executes at least once)
dump LABEL
-each(ASSOC_ARRAY)
+each(%HASH)
endgrent
endhostent
endnetent
endpwent
endservent
eof[([FILEHANDLE])]
-eq String equality.
+... eq ... String equality.
eval(EXPR) or eval { BLOCK }
-exec(LIST)
+exec([TRUENAME] ARGV0, ARGVs) or exec(SHELL_COMMAND_LINE)
exit(EXPR)
exp(EXPR)
fcntl(FILEHANDLE,FUNCTION,SCALAR)
for (EXPR;EXPR;EXPR) { ... }
foreach [VAR] (@ARRAY) { ... }
fork
-ge String greater than or equal.
+... ge ... String greater than or equal.
getc[(FILEHANDLE)]
getgrent
getgrgid(GID)
getsockopt(SOCKET,LEVEL,OPTNAME)
gmtime(EXPR)
goto LABEL
-grep(EXPR,LIST)
-gt String greater than.
+... gt ... String greater than.
hex(EXPR)
if (EXPR) { ... } [ elsif (EXPR) { ... } ... ] [ else { ... } ] or EXPR if EXPR
index(STR,SUBSTR[,OFFSET])
int(EXPR)
ioctl(FILEHANDLE,FUNCTION,SCALAR)
join(EXPR,LIST)
-keys(ASSOC_ARRAY)
+keys(%HASH)
kill(LIST)
last [LABEL]
-le String less than or equal.
+... le ... String less than or equal.
length(EXPR)
link(OLDFILE,NEWFILE)
listen(SOCKET,QUEUESIZE)
localtime(EXPR)
log(EXPR)
lstat(EXPR|FILEHANDLE|VAR)
-lt String less than.
+... lt ... String less than.
m/PATTERN/iogsmx
mkdir(FILENAME,MODE)
msgctl(ID,CMD,ARG)
msgrcv(ID,VAR,SIZE,TYPE.FLAGS)
msgsnd(ID,MSG,FLAGS)
my VAR or my (VAR1,...) Introduces a lexical variable ($VAR, @ARR, or %HASH).
-ne String inequality.
+our VAR or our (VAR1,...) Lexically enable a global variable ($V, @A, or %H).
+... ne ... String inequality.
next [LABEL]
oct(EXPR)
open(FILEHANDLE[,EXPR])
opendir(DIRHANDLE,EXPR)
-ord(EXPR)
+ord(EXPR) ASCII value of the first char of the string.
pack(TEMPLATE,LIST)
-package Introduces package context.
-pipe(READHANDLE,WRITEHANDLE)
+package NAME Introduces package context.
+pipe(READHANDLE,WRITEHANDLE) Create a pair of filehandles on ends of a pipe.
pop(ARRAY)
print [FILEHANDLE] [(LIST)]
printf [FILEHANDLE] (FORMAT,LIST)
srand(EXPR)
stat(EXPR|FILEHANDLE|VAR)
study[(SCALAR)]
-sub [NAME [(format)]] { BODY } or sub [NAME [(format)]];
+sub [NAME [(format)]] { BODY } sub NAME [(format)]; sub [(format)] {...}
substr(EXPR,OFFSET[,LEN])
symlink(OLDFILE,NEWFILE)
syscall(LIST)
sysread(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
-system(LIST)
+system([TRUENAME] ARGV0 [,ARGV]) or system(SHELL_COMMAND_LINE)
syswrite(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
tell[(FILEHANDLE)]
telldir(DIRHANDLE)
unlink(LIST)
unpack(TEMPLATE,EXPR)
unshift(ARRAY,LIST)
-until (EXPR) { ... } or EXPR until EXPR
+until (EXPR) { ... } EXPR until EXPR
utime(LIST)
-values(ASSOC_ARRAY)
+values(%HASH)
vec(EXPR,OFFSET,BITS)
wait
waitpid(PID,FLAGS)
-wantarray
+wantarray Returns true if the sub/eval is called in list context.
warn(LIST)
-while (EXPR) { ... } or EXPR while EXPR
+while (EXPR) { ... } EXPR while EXPR
write[(EXPR|FILEHANDLE)]
-x Repeat string or array.
-x= Repetition assignment.
+... x ... Repeat string or array.
+x= ... Repetition assignment.
y/SEARCHLIST/REPLACEMENTLIST/
-| Bitwise or.
-|| Logical or.
-~ Unary bitwise complement.
-#! OS interpreter indicator. If contains `perl', used for options, and -x.
+... | ... Bitwise or.
+... || ... Logical or.
+~ ... Unary bitwise complement.
+#! OS interpreter indicator. If contains `perl', used for options, and -x.
+AUTOLOAD {...} Shorthand for `sub AUTOLOAD {...}'.
+CORE:: Prefix to access builtin function if imported sub obscures it.
+SUPER:: Prefix to lookup for a method in @ISA classes.
+DESTROY Shorthand for `sub DESTROY {...}'.
+... EQ ... Obsolete synonym of `eq'.
+... GE ... Obsolete synonym of `ge'.
+... GT ... Obsolete synonym of `gt'.
+... LE ... Obsolete synonym of `le'.
+... LT ... Obsolete synonym of `lt'.
+... NE ... Obsolete synonym of `ne'.
+abs [ EXPR ] absolute value
+... and ... Low-precedence synonym for &&.
+bless REFERENCE [, PACKAGE] Makes reference into an object of a package.
+chomp [LIST] Strips $/ off LIST/$_. Returns count. Special if $/ eq ''!
+chr Converts a number to char with the same ordinal.
+else Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
+elsif Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
+exists $HASH{KEY} True if the key exists.
+format [NAME] = Start of output format. Ended by a single dot (.) on a line.
+formline PICTURE, LIST Backdoor into \"format\" processing.
+glob EXPR Synonym of <EXPR>.
+lc [ EXPR ] Returns lowercased EXPR.
+lcfirst [ EXPR ] Returns EXPR with lower-cased first letter.
+grep EXPR,LIST or grep {BLOCK} LIST Filters LIST via EXPR/BLOCK.
+map EXPR, LIST or map {BLOCK} LIST Applies EXPR/BLOCK to elts of LIST.
+no PACKAGE [SYMBOL1, ...] Partial reverse for `use'. Runs `unimport' method.
+not ... Low-precedence synonym for ! - negation.
+... or ... Low-precedence synonym for ||.
+pos STRING Set/Get end-position of the last match over this string, see \\G.
+quotemeta [ EXPR ] Quote regexp metacharacters.
+qw/WORD1 .../ Synonym of split('', 'WORD1 ...')
+readline FH Synonym of <FH>.
+readpipe CMD Synonym of `CMD`.
+ref [ EXPR ] Type of EXPR when dereferenced.
+sysopen FH, FILENAME, MODE [, PERM] (MODE is numeric, see Fcntl.)
+tie VAR, PACKAGE, LIST Hide an object behind a simple Perl variable.
+tied Returns internal object for a tied data.
+uc [ EXPR ] Returns upcased EXPR.
+ucfirst [ EXPR ] Returns EXPR with upcased first letter.
+untie VAR Unlink an object from a simple Perl variable.
+use PACKAGE [SYMBOL1, ...] Compile-time `require' with consequent `import'.
+... xor ... Low-precedence synonym for exclusive or.
+prototype \&SUB Returns prototype of the function given a reference.
+=head1 Top-level heading.
+=head2 Second-level heading.
+=head3 Third-level heading (is there such?).
+=over [ NUMBER ] Start list.
+=item [ TITLE ] Start new item in the list.
+=back End list.
+=cut Switch from POD to Perl.
+=pod Switch from Perl to POD.
")
(defun cperl-switch-to-doc-buffer ()
'variable-documentation))
(setq buffer-read-only t)))))
+(defun cperl-beautify-regexp-piece (b e embed level)
+ ;; b is before the starting delimiter, e before the ending
+ ;; e should be a marker, may be changed, but remains "correct".
+ ;; EMBED is nil iff we process the whole REx.
+ ;; The REx is guaranteed to have //x
+ ;; LEVEL shows how many levels deep to go
+ ;; position at enter and at leave is not defined
+ (let (s c tmp (m (make-marker)) (m1 (make-marker)) c1 spaces inline code pos)
+ (if (not embed)
+ (goto-char (1+ b))
+ (goto-char b)
+ (cond ((looking-at "(\\?\\\\#") ; (?#) wrongly commented when //x-ing
+ (forward-char 2)
+ (delete-char 1)
+ (forward-char 1))
+ ((looking-at "(\\?[^a-zA-Z]")
+ (forward-char 3))
+ ((looking-at "(\\?") ; (?i)
+ (forward-char 2))
+ (t
+ (forward-char 1))))
+ (setq c (if embed (current-indentation) (1- (current-column)))
+ c1 (+ c (or cperl-regexp-indent-step cperl-indent-level)))
+ (or (looking-at "[ \t]*[\n#]")
+ (progn
+ (insert "\n")))
+ (goto-char e)
+ (beginning-of-line)
+ (if (re-search-forward "[^ \t]" e t)
+ (progn ; Something before the ending delimiter
+ (goto-char e)
+ (delete-horizontal-space)
+ (insert "\n")
+ (cperl-make-indent c)
+ (set-marker e (point))))
+ (goto-char b)
+ (end-of-line 2)
+ (while (< (point) (marker-position e))
+ (beginning-of-line)
+ (setq s (point)
+ inline t)
+ (skip-chars-forward " \t")
+ (delete-region s (point))
+ (cperl-make-indent c1)
+ (while (and
+ inline
+ (looking-at
+ (concat "\\([a-zA-Z0-9]+[^*+{?]\\)" ; 1 word
+ "\\|" ; Embedded variable
+ "\\$\\([a-zA-Z0-9_]+\\([[{]\\)?\\|[^\n \t)|]\\)" ; 2 3
+ "\\|" ; $ ^
+ "[$^]"
+ "\\|" ; simple-code simple-code*?
+ "\\(\\\\.\\|[^][()#|*+?\n]\\)\\([*+{?]\\??\\)?" ; 4 5
+ "\\|" ; Class
+ "\\(\\[\\)" ; 6
+ "\\|" ; Grouping
+ "\\((\\(\\?\\)?\\)" ; 7 8
+ "\\|" ; |
+ "\\(|\\)"))) ; 9
+ (goto-char (match-end 0))
+ (setq spaces t)
+ (cond ((match-beginning 1) ; Alphanum word + junk
+ (forward-char -1))
+ ((or (match-beginning 3) ; $ab[12]
+ (and (match-beginning 5) ; X* X+ X{2,3}
+ (eq (preceding-char) ?\{)))
+ (forward-char -1)
+ (forward-sexp 1))
+ ((and ; [], already syntaxified
+ (match-beginning 6)
+ cperl-regexp-scan
+ cperl-use-syntax-table-text-property)
+ (forward-char -1)
+ (forward-sexp 1)
+ (or (eq (preceding-char) ?\])
+ (error "[]-group not terminated"))
+ (re-search-forward
+ "\\=\\([*+?]\\|{[0-9]+\\(,[0-9]*\\)?}\\)\\??" e t))
+ ((match-beginning 6) ; []
+ (setq tmp (point))
+ (if (looking-at "\\^?\\]")
+ (goto-char (match-end 0)))
+ ;; XXXX POSIX classes?!
+ (while (and (not pos)
+ (re-search-forward "\\[:\\|\\]" e t))
+ (if (eq (preceding-char) ?:)
+ (or (re-search-forward ":\\]" e t)
+ (error "[:POSIX:]-group in []-group not terminated"))
+ (setq pos t)))
+ (or (eq (preceding-char) ?\])
+ (error "[]-group not terminated"))
+ (re-search-forward
+ "\\=\\([*+?]\\|{[0-9]+\\(,[0-9]*\\)?}\\)\\??" e t))
+ ((match-beginning 7) ; ()
+ (goto-char (match-beginning 0))
+ (setq pos (current-column))
+ (or (eq pos c1)
+ (progn
+ (delete-horizontal-space)
+ (insert "\n")
+ (cperl-make-indent c1)))
+ (setq tmp (point))
+ (forward-sexp 1)
+ ;; (or (forward-sexp 1)
+ ;; (progn
+ ;; (goto-char tmp)
+ ;; (error "()-group not terminated")))
+ (set-marker m (1- (point)))
+ (set-marker m1 (point))
+ (if (= level 1)
+ (if (progn ; indent rigidly if multiline
+ ;; In fact does not make a lot of sense, since
+ ;; the starting position can be already lost due
+ ;; to insertion of "\n" and " "
+ (goto-char tmp)
+ (search-forward "\n" m1 t))
+ (indent-rigidly (point) m1 (- c1 pos)))
+ (setq level (1- level))
+ (cond
+ ((not (match-beginning 8))
+ (cperl-beautify-regexp-piece tmp m t level))
+ ((eq (char-after (+ 2 tmp)) ?\{) ; Code
+ t)
+ ((eq (char-after (+ 2 tmp)) ?\() ; Conditional
+ (goto-char (+ 2 tmp))
+ (forward-sexp 1)
+ (cperl-beautify-regexp-piece (point) m t level))
+ ((eq (char-after (+ 2 tmp)) ?<) ; Lookbehind
+ (goto-char (+ 3 tmp))
+ (cperl-beautify-regexp-piece (point) m t level))
+ (t
+ (cperl-beautify-regexp-piece tmp m t level))))
+ (goto-char m1)
+ (cond ((looking-at "[*+?]\\??")
+ (goto-char (match-end 0)))
+ ((eq (following-char) ?\{)
+ (forward-sexp 1)
+ (if (eq (following-char) ?\?)
+ (forward-char))))
+ (skip-chars-forward " \t")
+ (setq spaces nil)
+ (if (looking-at "[#\n]")
+ (progn
+ (or (eolp) (indent-for-comment))
+ (beginning-of-line 2))
+ (delete-horizontal-space)
+ (insert "\n"))
+ (end-of-line)
+ (setq inline nil))
+ ((match-beginning 9) ; |
+ (forward-char -1)
+ (setq tmp (point))
+ (beginning-of-line)
+ (if (re-search-forward "[^ \t]" tmp t)
+ (progn
+ (goto-char tmp)
+ (delete-horizontal-space)
+ (insert "\n"))
+ ;; first at line
+ (delete-region (point) tmp))
+ (cperl-make-indent c)
+ (forward-char 1)
+ (skip-chars-forward " \t")
+ (setq spaces nil)
+ (if (looking-at "[#\n]")
+ (beginning-of-line 2)
+ (delete-horizontal-space)
+ (insert "\n"))
+ (end-of-line)
+ (setq inline nil)))
+ (or (looking-at "[ \t\n]")
+ (not spaces)
+ (insert " "))
+ (skip-chars-forward " \t"))
+ (or (looking-at "[#\n]")
+ (error "Unknown code `%s' in a regexp"
+ (buffer-substring (point) (1+ (point)))))
+ (and inline (end-of-line 2)))
+ ;; Special-case the last line of group
+ (if (and (>= (point) (marker-position e))
+ (/= (current-indentation) c))
+ (progn
+ (beginning-of-line)
+ (cperl-make-indent c)))))
+
+(defun cperl-make-regexp-x ()
+ ;; Returns position of the start
+ ;; XXX this is called too often! Need to cache the result!
+ (save-excursion
+ (or cperl-use-syntax-table-text-property
+ (error "I need to have a regexp marked!"))
+ ;; Find the start
+ (if (looking-at "\\s|")
+ nil ; good already
+ (if (looking-at "\\([smy]\\|qr\\)\\s|")
+ (forward-char 1)
+ (re-search-backward "\\s|"))) ; Assume it is scanned already.
+ ;;(forward-char 1)
+ (let ((b (point)) (e (make-marker)) have-x delim (c (current-column))
+ (sub-p (eq (preceding-char) ?s)) s)
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (setq delim (preceding-char))
+ (if (and sub-p (eq delim (char-after (- (point) 2))))
+ (error "Possible s/blah// - do not know how to deal with"))
+ (if sub-p (forward-sexp 1))
+ (if (looking-at "\\sw*x")
+ (setq have-x t)
+ (insert "x"))
+ ;; Protect fragile " ", "#"
+ (if have-x nil
+ (goto-char (1+ b))
+ (while (re-search-forward "\\(\\=\\|[^\\\\]\\)\\(\\\\\\\\\\)*[ \t\n#]" e t) ; Need to include (?#) too?
+ (forward-char -1)
+ (insert "\\")
+ (forward-char 1)))
+ b)))
+
+(defun cperl-beautify-regexp (&optional deep)
+ "Do it. (Experimental, may change semantics, recheck the result.)
+We suppose that the regexp is scanned already."
+ (interactive "P")
+ (setq deep (if deep (prefix-numeric-value deep) -1))
+ (save-excursion
+ (goto-char (cperl-make-regexp-x))
+ (let ((b (point)) (e (make-marker)))
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (cperl-beautify-regexp-piece b e nil deep))))
+
+(defun cperl-regext-to-level-start ()
+ "Goto start of an enclosing group in regexp.
+We suppose that the regexp is scanned already."
+ (interactive)
+ (let ((limit (cperl-make-regexp-x)) done)
+ (while (not done)
+ (or (eq (following-char) ?\()
+ (search-backward "(" (1+ limit) t)
+ (error "Cannot find `(' which starts a group"))
+ (setq done
+ (save-excursion
+ (skip-chars-backward "\\")
+ (looking-at "\\(\\\\\\\\\\)*(")))
+ (or done (forward-char -1)))))
+
+(defun cperl-contract-level ()
+ "Find an enclosing group in regexp and contract it.
+\(Experimental, may change semantics, recheck the result.)
+We suppose that the regexp is scanned already."
+ (interactive)
+ ;; (save-excursion ; Can't, breaks `cperl-contract-levels'
+ (cperl-regext-to-level-start)
+ (let ((b (point)) (e (make-marker)) c)
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (goto-char b)
+ (while (re-search-forward "\\(#\\)\\|\n" e 'to-end)
+ (cond
+ ((match-beginning 1) ; #-comment
+ (or c (setq c (current-indentation)))
+ (beginning-of-line 2) ; Skip
+ (cperl-make-indent c))
+ (t
+ (delete-char -1)
+ (just-one-space))))))
+
+(defun cperl-contract-levels ()
+ "Find an enclosing group in regexp and contract all the kids.
+\(Experimental, may change semantics, recheck the result.)
+We suppose that the regexp is scanned already."
+ (interactive)
+ (save-excursion
+ (condition-case nil
+ (cperl-regext-to-level-start)
+ (error ; We are outside outermost group
+ (goto-char (cperl-make-regexp-x))))
+ (let ((b (point)) (e (make-marker)) s c)
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (goto-char (1+ b))
+ (while (re-search-forward "\\(\\\\\\\\\\)\\|(" e t)
+ (cond
+ ((match-beginning 1) ; Skip
+ nil)
+ (t ; Group
+ (cperl-contract-level)))))))
+
+(defun cperl-beautify-level (&optional deep)
+ "Find an enclosing group in regexp and beautify it.
+\(Experimental, may change semantics, recheck the result.)
+We suppose that the regexp is scanned already."
+ (interactive "P")
+ (setq deep (if deep (prefix-numeric-value deep) -1))
+ (save-excursion
+ (cperl-regext-to-level-start)
+ (let ((b (point)) (e (make-marker)))
+ (forward-sexp 1)
+ (set-marker e (1- (point)))
+ (cperl-beautify-regexp-piece b e nil deep))))
+
+(defun cperl-invert-if-unless-modifiers ()
+ "Change `B if A;' into `if (A) {B}' etc if possible.
+\(Unfinished.)"
+ (interactive) ;
+ (let (A B pre-B post-B pre-if post-if pre-A post-A if-string
+ (w-rex "\\<\\(if\\|unless\\|while\\|until\\|for\\|foreach\\)\\>"))
+ (and (= (char-syntax (preceding-char)) ?w)
+ (forward-sexp -1))
+ (setq pre-if (point))
+ (cperl-backward-to-start-of-expr)
+ (setq pre-B (point))
+ (forward-sexp 1) ; otherwise forward-to-end-of-expr is NOP
+ (cperl-forward-to-end-of-expr)
+ (setq post-A (point))
+ (goto-char pre-if)
+ (or (looking-at w-rex)
+ ;; Find the position
+ (progn (goto-char post-A)
+ (while (and
+ (not (looking-at w-rex))
+ (> (point) pre-B))
+ (forward-sexp -1))
+ (setq pre-if (point))))
+ (or (looking-at w-rex)
+ (error "Can't find `if', `unless', `while', `until', `for' or `foreach'"))
+ ;; 1 B 2 ... 3 B-com ... 4 if 5 ... if-com 6 ... 7 A 8
+ (setq if-string (buffer-substring (match-beginning 0) (match-end 0)))
+ ;; First, simple part: find code boundaries
+ (forward-sexp 1)
+ (setq post-if (point))
+ (forward-sexp -2)
+ (forward-sexp 1)
+ (setq post-B (point))
+ (cperl-backward-to-start-of-expr)
+ (setq pre-B (point))
+ (setq B (buffer-substring pre-B post-B))
+ (goto-char pre-if)
+ (forward-sexp 2)
+ (forward-sexp -1)
+ ;; May be after $, @, $# etc of a variable
+ (skip-chars-backward "$@%#")
+ (setq pre-A (point))
+ (cperl-forward-to-end-of-expr)
+ (setq post-A (point))
+ (setq A (buffer-substring pre-A post-A))
+ ;; Now modify (from end, to not break the stuff)
+ (skip-chars-forward " \t;")
+ (delete-region pre-A (point)) ; we move to pre-A
+ (insert "\n" B ";\n}")
+ (and (looking-at "[ \t]*#") (cperl-indent-for-comment))
+ (delete-region pre-if post-if)
+ (delete-region pre-B post-B)
+ (goto-char pre-B)
+ (insert if-string " (" A ") {")
+ (setq post-B (point))
+ (if (looking-at "[ \t]+$")
+ (delete-horizontal-space)
+ (if (looking-at "[ \t]*#")
+ (cperl-indent-for-comment)
+ (just-one-space)))
+ (forward-line 1)
+ (if (looking-at "[ \t]*$")
+ (progn ; delete line
+ (delete-horizontal-space)
+ (delete-region (point) (1+ (point)))))
+ (cperl-indent-line)
+ (goto-char (1- post-B))
+ (forward-sexp 1)
+ (cperl-indent-line)
+ (goto-char pre-B)))
+
+(defun cperl-invert-if-unless ()
+ "Change `if (A) {B}' into `B if A;' etc (or visa versa) if possible.
+If the cursor is not on the leading keyword of the BLOCK flavor of
+construct, will assume it is the STATEMENT flavor, so will try to find
+the appropriate statement modifier."
+ (interactive)
+ (and (= (char-syntax (preceding-char)) ?w)
+ (forward-sexp -1))
+ (if (looking-at "\\<\\(if\\|unless\\|while\\|until\\|for\\|foreach\\)\\>")
+ (let ((pre-if (point))
+ pre-A post-A pre-B post-B A B state p end-B-code is-block B-comment
+ (if-string (buffer-substring (match-beginning 0) (match-end 0))))
+ (forward-sexp 2)
+ (setq post-A (point))
+ (forward-sexp -1)
+ (setq pre-A (point))
+ (setq is-block (and (eq (following-char) ?\( )
+ (save-excursion
+ (condition-case nil
+ (progn
+ (forward-sexp 2)
+ (forward-sexp -1)
+ (eq (following-char) ?\{ ))
+ (error nil)))))
+ (if is-block
+ (progn
+ (goto-char post-A)
+ (forward-sexp 1)
+ (setq post-B (point))
+ (forward-sexp -1)
+ (setq pre-B (point))
+ (if (and (eq (following-char) ?\{ )
+ (progn
+ (cperl-backward-to-noncomment post-A)
+ (eq (preceding-char) ?\) )))
+ (if (condition-case nil
+ (progn
+ (goto-char post-B)
+ (forward-sexp 1)
+ (forward-sexp -1)
+ (looking-at "\\<els\\(e\\|if\\)\\>"))
+ (error nil))
+ (error
+ "`%s' (EXPR) {BLOCK} with `else'/`elsif'" if-string)
+ (goto-char (1- post-B))
+ (cperl-backward-to-noncomment pre-B)
+ (if (eq (preceding-char) ?\;)
+ (forward-char -1))
+ (setq end-B-code (point))
+ (goto-char pre-B)
+ (while (re-search-forward "\\<\\(for\\|foreach\\|if\\|unless\\|while\\|until\\)\\>\\|;" end-B-code t)
+ (setq p (match-beginning 0)
+ A (buffer-substring p (match-end 0))
+ state (parse-partial-sexp pre-B p))
+ (or (nth 3 state)
+ (nth 4 state)
+ (nth 5 state)
+ (error "`%s' inside `%s' BLOCK" A if-string))
+ (goto-char (match-end 0)))
+ ;; Finally got it
+ (goto-char (1+ pre-B))
+ (skip-chars-forward " \t\n")
+ (setq B (buffer-substring (point) end-B-code))
+ (goto-char end-B-code)
+ (or (looking-at ";?[ \t\n]*}")
+ (progn
+ (skip-chars-forward "; \t\n")
+ (setq B-comment
+ (buffer-substring (point) (1- post-B)))))
+ (and (equal B "")
+ (setq B "1"))
+ (goto-char (1- post-A))
+ (cperl-backward-to-noncomment pre-A)
+ (or (looking-at "[ \t\n]*)")
+ (goto-char (1- post-A)))
+ (setq p (point))
+ (goto-char (1+ pre-A))
+ (skip-chars-forward " \t\n")
+ (setq A (buffer-substring (point) p))
+ (delete-region pre-B post-B)
+ (delete-region pre-A post-A)
+ (goto-char pre-if)
+ (insert B " ")
+ (and B-comment (insert B-comment " "))
+ (just-one-space)
+ (forward-word 1)
+ (setq pre-A (point))
+ (insert " " A ";")
+ (delete-horizontal-space)
+ (setq post-B (point))
+ (if (looking-at "#")
+ (indent-for-comment))
+ (goto-char post-B)
+ (forward-char -1)
+ (delete-horizontal-space)
+ (goto-char pre-A)
+ (just-one-space)
+ (goto-char pre-if)
+ (setq pre-A (set-marker (make-marker) pre-A))
+ (while (<= (point) (marker-position pre-A))
+ (cperl-indent-line)
+ (forward-line 1))
+ (goto-char (marker-position pre-A))
+ (if B-comment
+ (progn
+ (forward-line -1)
+ (indent-for-comment)
+ (goto-char (marker-position pre-A)))))
+ (error "`%s' (EXPR) not with an {BLOCK}" if-string)))
+ ;; (error "`%s' not with an (EXPR)" if-string)
+ (forward-sexp -1)
+ (cperl-invert-if-unless-modifiers)))
+ ;;(error "Not at `if', `unless', `while', `until', `for' or `foreach'")
+ (cperl-invert-if-unless-modifiers)))
+
+;;; By Anthony Foiani <afoiani@uswest.com>
+;;; Getting help on modules in C-h f ?
+;;; This is a modified version of `man'.
+;;; Need to teach it how to lookup functions
+;;;###autoload
+(defun cperl-perldoc (word)
+ "Run `perldoc' on WORD."
+ (interactive
+ (list (let* ((default-entry (cperl-word-at-point))
+ (input (read-string
+ (format "perldoc entry%s: "
+ (if (string= default-entry "")
+ ""
+ (format " (default %s)" default-entry))))))
+ (if (string= input "")
+ (if (string= default-entry "")
+ (error "No perldoc args given")
+ default-entry)
+ input))))
+ (require 'man)
+ (let* ((case-fold-search nil)
+ (is-func (and
+ (string-match "^[a-z]+$" word)
+ (string-match (concat "^" word "\\>")
+ (documentation-property
+ 'cperl-short-docs
+ 'variable-documentation))))
+ (manual-program (if is-func "perldoc -f" "perldoc")))
+ (cond
+ (cperl-xemacs-p
+ (let ((Manual-program "perldoc")
+ (Manual-switches (if is-func (list "-f"))))
+ (manual-entry word)))
+ (t
+ (Man-getpage-in-background word)))))
+
+;;;###autoload
+(defun cperl-perldoc-at-point ()
+ "Run a `perldoc' on the word around point."
+ (interactive)
+ (cperl-perldoc (cperl-word-at-point)))
+
+(defcustom pod2man-program "pod2man"
+ "*File name for `pod2man'."
+ :type 'file
+ :group 'cperl)
+
+;;; By Nick Roberts <Nick.Roberts@src.bae.co.uk> (with changes)
+(defun cperl-pod-to-manpage ()
+ "Create a virtual manpage in Emacs from the Perl Online Documentation."
+ (interactive)
+ (require 'man)
+ (let* ((pod2man-args (concat buffer-file-name " | nroff -man "))
+ (bufname (concat "Man " buffer-file-name))
+ (buffer (generate-new-buffer bufname)))
+ (save-excursion
+ (set-buffer buffer)
+ (let ((process-environment (copy-sequence process-environment)))
+ ;; Prevent any attempt to use display terminal fanciness.
+ (setenv "TERM" "dumb")
+ (set-process-sentinel
+ (start-process pod2man-program buffer "sh" "-c"
+ (format (cperl-pod2man-build-command) pod2man-args))
+ 'Man-bgproc-sentinel)))))
+
+;;; Updated version by him too
+(defun cperl-build-manpage ()
+ "Create a virtual manpage in Emacs from the POD in the file."
+ (interactive)
+ (require 'man)
+ (cond
+ (cperl-xemacs-p
+ (let ((Manual-program "perldoc"))
+ (manual-entry buffer-file-name)))
+ (t
+ (let* ((manual-program "perldoc"))
+ (Man-getpage-in-background buffer-file-name)))))
+
+(defun cperl-pod2man-build-command ()
+ "Builds the entire background manpage and cleaning command."
+ (let ((command (concat pod2man-program " %s 2>/dev/null"))
+ (flist (and (boundp 'Man-filter-list) Man-filter-list)))
+ (while (and flist (car flist))
+ (let ((pcom (car (car flist)))
+ (pargs (cdr (car flist))))
+ (setq command
+ (concat command " | " pcom " "
+ (mapconcat '(lambda (phrase)
+ (if (not (stringp phrase))
+ (error "Malformed Man-filter-list"))
+ phrase)
+ pargs " ")))
+ (setq flist (cdr flist))))
+ command))
+
+
+(defun cperl-next-interpolated-REx-1 ()
+ "Move point to next REx which has interpolated parts without //o.
+Skips RExes consisting of one interpolated variable.
+
+Note that skipped RExen are not performance hits."
+ (interactive "")
+ (cperl-next-interpolated-REx 1))
+
+(defun cperl-next-interpolated-REx-0 ()
+ "Move point to next REx which has interpolated parts without //o."
+ (interactive "")
+ (cperl-next-interpolated-REx 0))
+
+(defun cperl-next-interpolated-REx (&optional skip beg limit)
+ "Move point to next REx which has interpolated parts.
+SKIP is a list of possible types to skip, BEG and LIMIT are the starting
+point and the limit of search (default to point and end of buffer).
+
+SKIP may be a number, then it behaves as list of numbers up to SKIP; this
+semantic may be used as a numeric argument.
+
+Types are 0 for / $rex /o (interpolated once), 1 for /$rex/ (if $rex is
+a result of qr//, this is not a performance hit), t for the rest."
+ (interactive "P")
+ (if (numberp skip) (setq skip (list 0 skip)))
+ (or beg (setq beg (point)))
+ (or limit (setq limit (point-max))) ; needed for n-s-p-c
+ (let (pp)
+ (and (eq (get-text-property beg 'syntax-type) 'string)
+ (setq beg (next-single-property-change beg 'syntax-type nil limit)))
+ (cperl-map-pods-heres
+ (function (lambda (s e p)
+ (if (memq (get-text-property s 'REx-interpolated) skip)
+ t
+ (setq pp s)
+ nil))) ; nil stops
+ 'REx-interpolated beg limit)
+ (if pp (goto-char pp)
+ (message "No more interpolated REx"))))
+
+;;; Initial version contributed by Trey Belew
+(defun cperl-here-doc-spell (&optional beg end)
+ "Spell-check HERE-documents in the Perl buffer.
+If a region is highlighted, restricts to the region."
+ (interactive "")
+ (cperl-pod-spell t beg end))
+
+(defun cperl-pod-spell (&optional do-heres beg end)
+ "Spell-check POD documentation.
+If invoked with prefix argument, will do HERE-DOCs instead.
+If a region is highlighted, restricts to the region."
+ (interactive "P")
+ (save-excursion
+ (let (beg end)
+ (if (cperl-mark-active)
+ (setq beg (min (mark) (point))
+ end (max (mark) (point)))
+ (setq beg (point-min)
+ end (point-max)))
+ (cperl-map-pods-heres (function
+ (lambda (s e p)
+ (if do-heres
+ (setq e (save-excursion
+ (goto-char e)
+ (forward-line -1)
+ (point))))
+ (ispell-region s e)
+ t))
+ (if do-heres 'here-doc-group 'in-pod)
+ beg end))))
+
+(defun cperl-map-pods-heres (func &optional prop s end)
+ "Executes a function over regions of pods or here-documents.
+PROP is the text-property to search for; default to `in-pod'. Stop when
+function returns nil."
+ (let (pos posend has-prop (cont t))
+ (or prop (setq prop 'in-pod))
+ (or s (setq s (point-min)))
+ (or end (setq end (point-max)))
+ (cperl-update-syntaxification end end)
+ (save-excursion
+ (goto-char (setq pos s))
+ (while (and cont (< pos end))
+ (setq has-prop (get-text-property pos prop))
+ (setq posend (next-single-property-change pos prop nil end))
+ (and has-prop
+ (setq cont (funcall func pos posend prop)))
+ (setq pos posend)))))
+
+;;; Based on code by Masatake YAMATO:
+(defun cperl-get-here-doc-region (&optional pos pod)
+ "Return HERE document region around the point.
+Return nil if the point is not in a HERE document region. If POD is non-nil,
+will return a POD section if point is in a POD section."
+ (or pos (setq pos (point)))
+ (cperl-update-syntaxification pos pos)
+ (if (or (eq 'here-doc (get-text-property pos 'syntax-type))
+ (and pod
+ (eq 'pod (get-text-property pos 'syntax-type))))
+ (let ((b (cperl-beginning-of-property pos 'syntax-type))
+ (e (next-single-property-change pos 'syntax-type)))
+ (cons b (or e (point-max))))))
+
+(defun cperl-narrow-to-here-doc (&optional pos)
+ "Narrows editing region to the HERE-DOC at POS.
+POS defaults to the point."
+ (interactive "d")
+ (or pos (setq pos (point)))
+ (let ((p (cperl-get-here-doc-region pos)))
+ (or p (error "Not inside a HERE document"))
+ (narrow-to-region (car p) (cdr p))
+ (message
+ "When you are finished with narrow editing, type C-x n w")))
+
+(defun cperl-select-this-pod-or-here-doc (&optional pos)
+ "Select the HERE-DOC (or POD section) at POS.
+POS defaults to the point."
+ (interactive "d")
+ (let ((p (cperl-get-here-doc-region pos t)))
+ (if p
+ (progn
+ (goto-char (car p))
+ (push-mark (cdr p) nil t)) ; Message, activate in transient-mode
+ (message "I do not think POS is in POD or a HERE-doc..."))))
+
+(defun cperl-facemenu-add-face-function (face end)
+ "A callback to process user-initiated font-change requests.
+Translates `bold', `italic', and `bold-italic' requests to insertion of
+corresponding POD directives, and `underline' to C<> POD directive.
+
+Such requests are usually bound to M-o LETTER."
+ (or (get-text-property (point) 'in-pod)
+ (error "Faces can only be set within POD"))
+ (setq facemenu-end-add-face (if (eq face 'bold-italic) ">>" ">"))
+ (cdr (or (assq face '((bold . "B<")
+ (italic . "I<")
+ (bold-italic . "B<I<")
+ (underline . "C<")))
+ (error "Face %s not configured for cperl-mode"
+ face))))
+\f
+(defun cperl-time-fontification (&optional l step lim)
+ "Times how long it takes to do incremental fontification in a region.
+L is the line to start at, STEP is the number of lines to skip when
+doing next incremental fontification, LIM is the maximal number of
+incremental fontification to perform. Messages are accumulated in
+*Messages* buffer.
+
+May be used for pinpointing which construct slows down buffer fontification:
+start with default arguments, then refine the slowdown regions."
+ (interactive "nLine to start at: \nnStep to do incremental fontification: ")
+ (or l (setq l 1))
+ (or step (setq step 500))
+ (or lim (setq lim 40))
+ (let* ((timems (function (lambda ()
+ (let ((tt (current-time)))
+ (+ (* 1000 (nth 1 tt)) (/ (nth 2 tt) 1000))))))
+ (tt (funcall timems)) (c 0) delta tot)
+ (goto-line l)
+ (cperl-mode)
+ (setq tot (- (- tt (setq tt (funcall timems)))))
+ (message "cperl-mode at %s: %s" l tot)
+ (while (and (< c lim) (not (eobp)))
+ (forward-line step)
+ (setq l (+ l step))
+ (setq c (1+ c))
+ (cperl-update-syntaxification (point) (point))
+ (setq delta (- (- tt (setq tt (funcall timems)))) tot (+ tot delta))
+ (message "to %s:%6s,%7s" l delta tot))
+ tot))
+
+(defun cperl-emulate-lazy-lock (&optional window-size)
+ "Emulate `lazy-lock' without `condition-case', so `debug-on-error' works.
+Start fontifying the buffer from the start (or end) using the given
+WINDOW-SIZE (units is lines). Negative WINDOW-SIZE starts at end, and
+goes backwards; default is -50. This function is not CPerl-specific; it
+may be used to debug problems with delayed incremental fontification."
+ (interactive
+ "nSize of window for incremental fontification, negative goes backwards: ")
+ (or window-size (setq window-size -50))
+ (let ((pos (if (> window-size 0)
+ (point-min)
+ (point-max)))
+ p)
+ (goto-char pos)
+ (normal-mode)
+ ;; Why needed??? With older font-locks???
+ (set (make-local-variable 'font-lock-cache-position) (make-marker))
+ (while (if (> window-size 0)
+ (< pos (point-max))
+ (> pos (point-min)))
+ (setq p (progn
+ (forward-line window-size)
+ (point)))
+ (font-lock-fontify-region (min p pos) (max p pos))
+ (setq pos p))))
+
+\f
+(defun cperl-lazy-install ()) ; Avoid a warning
+(defun cperl-lazy-unstall ()) ; Avoid a warning
+
(if (fboundp 'run-with-idle-timer)
(progn
(defvar cperl-help-shown nil
"Non-nil means that the help was already shown now.")
- (defvar cperl-help-timer nil
- "Non-nil means that the help was already shown now.")
+ (defvar cperl-lazy-installed nil
+ "Non-nil means that the lazy-help handlers are installed now.")
(defun cperl-lazy-install ()
+ "Switches on Auto-Help on Perl constructs (put in the message area).
+Delay of auto-help controlled by `cperl-lazy-help-time'."
(interactive)
(make-variable-buffer-local 'cperl-help-shown)
- (if (cperl-val cperl-lazy-help-time)
+ (if (and (cperl-val 'cperl-lazy-help-time)
+ (not cperl-lazy-installed))
(progn
(add-hook 'post-command-hook 'cperl-lazy-hook)
- (setq cperl-help-timer
- (run-with-idle-timer
- (cperl-val cperl-lazy-help-time 1000000 5)
- t
- 'cperl-get-help-defer)))))
+ (run-with-idle-timer
+ (cperl-val 'cperl-lazy-help-time 1000000 5)
+ t
+ 'cperl-get-help-defer)
+ (setq cperl-lazy-installed t))))
(defun cperl-lazy-unstall ()
+ "Switches off Auto-Help on Perl constructs (put in the message area).
+Delay of auto-help controlled by `cperl-lazy-help-time'."
(interactive)
(remove-hook 'post-command-hook 'cperl-lazy-hook)
- (cancel-timer cperl-help-timer))
+ (cancel-function-timers 'cperl-get-help-defer)
+ (setq cperl-lazy-installed nil))
(defun cperl-lazy-hook ()
(setq cperl-help-shown nil))
(defun cperl-get-help-defer ()
- (if (not (eq major-mode 'perl-mode)) nil
- (let ((cperl-message-on-help-error nil))
+ (if (not (memq major-mode '(perl-mode cperl-mode))) nil
+ (let ((cperl-message-on-help-error nil) (cperl-help-from-timer t))
(cperl-get-help)
(setq cperl-help-shown t))))
(cperl-lazy-install)))
+
+
+;;; Plug for wrong font-lock:
+
+(defun cperl-font-lock-unfontify-region-function (beg end)
+ (let* ((modified (buffer-modified-p)) (buffer-undo-list t)
+ (inhibit-read-only t) (inhibit-point-motion-hooks t)
+ before-change-functions after-change-functions
+ deactivate-mark buffer-file-name buffer-file-truename)
+ (remove-text-properties beg end '(face nil))
+ (if (and (not modified) (buffer-modified-p))
+ (set-buffer-modified-p nil))))
+
+(defun cperl-font-lock-fontify-region-function (beg end loudly)
+ "Extends the region to safe positions, then calls the default function.
+Newer `font-lock's can do it themselves.
+We unwind only as far as needed for fontification. Syntaxification may
+do extra unwind via `cperl-unwind-to-safe'."
+ (save-excursion
+ (goto-char beg)
+ (while (and beg
+ (progn
+ (beginning-of-line)
+ (eq (get-text-property (setq beg (point)) 'syntax-type)
+ 'multiline)))
+ (if (setq beg (cperl-beginning-of-property beg 'syntax-type))
+ (goto-char beg)))
+ (setq beg (point))
+ (goto-char end)
+ (while (and end
+ (progn
+ (or (bolp) (condition-case nil
+ (forward-line 1)
+ (error nil)))
+ (eq (get-text-property (setq end (point)) 'syntax-type)
+ 'multiline)))
+ (setq end (next-single-property-change end 'syntax-type nil (point-max)))
+ (goto-char end))
+ (setq end (point)))
+ (font-lock-default-fontify-region beg end loudly))
+
+(defvar cperl-d-l nil)
+(defun cperl-fontify-syntaxically (end)
+ ;; Some vars for debugging only
+ ;; (message "Syntaxifying...")
+ (let ((dbg (point)) (iend end) (idone cperl-syntax-done-to)
+ (istate (car cperl-syntax-state))
+ start from-start edebug-backtrace-buffer)
+ (if (eq cperl-syntaxify-by-font-lock 'backtrace)
+ (progn
+ (require 'edebug)
+ (let ((f 'edebug-backtrace))
+ (funcall f)))) ; Avoid compile-time warning
+ (or cperl-syntax-done-to
+ (setq cperl-syntax-done-to (point-min)
+ from-start t))
+ (setq start (if (and cperl-hook-after-change
+ (not from-start))
+ cperl-syntax-done-to ; Fontify without change; ignore start
+ ;; Need to forget what is after `start'
+ (min cperl-syntax-done-to (point))))
+ (goto-char start)
+ (beginning-of-line)
+ (setq start (point))
+ (and cperl-syntaxify-unwind
+ (setq end (cperl-unwind-to-safe t end)
+ start (point)))
+ (and (> end start)
+ (setq cperl-syntax-done-to start) ; In case what follows fails
+ (cperl-find-pods-heres start end t nil t))
+ (if (memq cperl-syntaxify-by-font-lock '(backtrace message))
+ (message "Syxify req=%s..%s actual=%s..%s done-to: %s=>%s statepos: %s=>%s"
+ dbg iend start end idone cperl-syntax-done-to
+ istate (car cperl-syntax-state))) ; For debugging
+ nil)) ; Do not iterate
+
+(defun cperl-fontify-update (end)
+ (let ((pos (point-min)) prop posend)
+ (setq end (point-max))
+ (while (< pos end)
+ (setq prop (get-text-property pos 'cperl-postpone)
+ posend (next-single-property-change pos 'cperl-postpone nil end))
+ (and prop (put-text-property pos posend (car prop) (cdr prop)))
+ (setq pos posend)))
+ nil) ; Do not iterate
+
+(defun cperl-fontify-update-bad (end)
+ ;; Since fontification happens with different region than syntaxification,
+ ;; do to the end of buffer, not to END;;; likewise, start earlier if needed
+ (let* ((pos (point)) (prop (get-text-property pos 'cperl-postpone)) posend)
+ (if prop
+ (setq pos (or (cperl-beginning-of-property
+ (cperl-1+ pos) 'cperl-postpone)
+ (point-min))))
+ (while (< pos end)
+ (setq posend (next-single-property-change pos 'cperl-postpone))
+ (and prop (put-text-property pos posend (car prop) (cdr prop)))
+ (setq pos posend)
+ (setq prop (get-text-property pos 'cperl-postpone))))
+ nil) ; Do not iterate
+
+;; Called when any modification is made to buffer text.
+(defun cperl-after-change-function (beg end old-len)
+ ;; We should have been informed about changes by `font-lock'. Since it
+ ;; does not inform as which calls are defered, do it ourselves
+ (if cperl-syntax-done-to
+ (setq cperl-syntax-done-to (min cperl-syntax-done-to beg))))
+
+(defun cperl-update-syntaxification (from to)
+ (if (and cperl-use-syntax-table-text-property
+ cperl-syntaxify-by-font-lock
+ (or (null cperl-syntax-done-to)
+ (< cperl-syntax-done-to to)))
+ (progn
+ (save-excursion
+ (goto-char from)
+ (cperl-fontify-syntaxically to)))))
+
+(defvar cperl-version
+ (let ((v "$Revision: 5.23 $"))
+ (string-match ":\\s *\\([0-9.]+\\)" v)
+ (substring v (match-beginning 1) (match-end 1)))
+ "Version of IZ-supported CPerl package this file is based on.")
+
+(provide 'cperl-mode)
+
+;;; cperl-mode.el ends here
projects / p5sagit/p5-mst-13.2.git / blobdiff