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qmaxmem hint doesn't apply to gcc.
[p5sagit/p5-mst-13.2.git] / emacs / cperl-mode.el
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4633a7c4 1;;; This code started from the following message of long time ago (IZ):
2
3;;; From: olson@mcs.anl.gov (Bob Olson)
4;;; Newsgroups: comp.lang.perl
5;;; Subject: cperl-mode: Another perl mode for Gnuemacs
6;;; Date: 14 Aug 91 15:20:01 GMT
7
8;; Perl code editing commands for Emacs
9;; Copyright (C) 1985, 1986, 1987 Free Software Foundation, Inc.
10
11;; This file is not (yet) part of GNU Emacs.
12
13;; GNU Emacs is free software; you can redistribute it and/or modify
14;; it under the terms of the GNU General Public License as published by
15;; the Free Software Foundation; either version 2, or (at your option)
16;; any later version.
17
18;; GNU Emacs is distributed in the hope that it will be useful,
19;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21;; GNU General Public License for more details.
22
23;; You should have received a copy of the GNU General Public License
24;; along with GNU Emacs; see the file COPYING. If not, write to
25;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
26
27;;; Corrections made by Ilya Zakharevich ilya@math.mps.ohio-state.edu
28;;; XEmacs changes by Peter Arius arius@informatik.uni-erlangen.de
29
9ea28adb 30;; $Id: cperl-mode.el,v 1.24 1996/07/04 02:14:27 ilya Exp ilya $
4633a7c4 31
32;;; To use this mode put the following into your .emacs file:
33
34;; (autoload 'perl-mode "cperl-mode" "alternate mode for editing Perl programs" t)
35
36;;; You can either fine-tune the bells and whistles of this mode or
37;;; bulk enable them by putting
38
39;; (setq cperl-hairy t)
40
41;;; in your .emacs file. (Emacs rulers do not consider it politically
42;;; correct to make whistles enabled by default.)
43
44;;; Additional useful commands to put into your .emacs file:
45
46;; (setq auto-mode-alist
47;; (append '(("\\.[pP][Llm]$" . perl-mode)) auto-mode-alist ))
48;; (setq interpreter-mode-alist (append interpreter-mode-alist
49;; '(("miniperl" . perl-mode))))
50
51;;; The mode information (on C-h m) provides customization help.
52;;; If you use font-lock feature of this mode, it is advisable to use
53;;; eather lazy-lock-mode or fast-lock-mode (available on ELisp
54;;; archive in files lazy-lock.el and fast-lock.el). I prefer lazy-lock.
55
56;;; Faces used now: three faces for first-class and second-class keywords
57;;; and control flow words, one for each: comments, string, labels,
58;;; functions definitions and packages, arrays, hashes, and variable
59;;; definitions. If you do not see all these faces, your font-lock does
60;;; not define them, so you need to define them manually. Maybe you have
61;;; an obsolete font-lock from 19.28 or earlier. Upgrade.
62
63;;; If you have grayscale monitor, and do not have the variable
64;;; font-lock-display-type bound to 'grayscale, insert
65
66;;; (setq font-lock-display-type 'grayscale)
67
68;;; to your .emacs file.
69
29043b61 70;;;; This mode supports font-lock, imenu and mode-compile. In the
4633a7c4 71;;;; hairy version font-lock is on, but you should activate imenu
29043b61 72;;;; yourself (note that mode-compile is not standard yet). Well, you
4633a7c4 73;;;; can use imenu from keyboard anyway (M-x imenu), but it is better
74;;;; to bind it like that:
75
76;; (define-key global-map [M-S-down-mouse-3] 'imenu)
77
78;;; In fact the version of font-lock that this version supports can be
79;;; much newer than the version you actually have. This means that a
80;;; lot of faces can be set up, but are not visible on your screen
81;;; since the coloring rules for this faces are not defined.
82
4633a7c4 83;;; Updates: ========================================
84
85;;; Made less hairy by default: parentheses not electric,
86;;; linefeed not magic. Bug with abbrev-mode corrected.
87
88;;;; After 1.4:
89;;; Better indentation:
90;;; subs inside braces should work now,
91;;; Toplevel braces obey customization.
92;;; indent-for-comment knows about bad cases, cperl-indent-for-comment
93;;; moves cursor to a correct place.
94;;; cperl-indent-exp written from the scratch! Slow... (quadratic!) :-(
95;;; (50 secs on DB::DB (sub of 430 lines), 486/66)
96;;; Minor documentation fixes.
97;;; Imenu understands packages as prefixes (including nested).
98;;; Hairy options can be switched off one-by-one by setting to null.
99;;; Names of functions and variables changed to conform to `cperl-' style.
100
101;;;; After 1.5:
102;;; Some bugs with indentation of labels (and embedded subs) corrected.
103;;; `cperl-indent-region' done (slow :-()).
104;;; `cperl-fill-paragraph' done.
105;;; Better package support for `imenu'.
106;;; Progress indicator for indentation (with `imenu' loaded).
107;;; `Cperl-set' was busted, now setting the individual hairy option
108;;; should be better.
109
110;;;; After 1.6:
111;;; `cperl-set-style' done.
112;;; `cperl-check-syntax' done.
113;;; Menu done.
114;;; New config variables `cperl-close-paren-offset' and `cperl-comment-column'.
115;;; Bugs with `cperl-auto-newline' corrected.
116;;; `cperl-electric-lbrace' can work with `cperl-auto-newline' in situation
117;;; like $hash{.
118
119;;;; 1.7 XEmacs (arius@informatik.uni-erlangen.de):
120;;; - use `next-command-event', if `next-command-events' does not exist
121;;; - use `find-face' as def. of `is-face'
122;;; - corrected def. of `x-color-defined-p'
123;;; - added const defs for font-lock-comment-face,
124;;; font-lock-keyword-face and font-lock-function-name-face
125;;; - added def. of font-lock-variable-name-face
126;;; - added (require 'easymenu) inside an `eval-when-compile'
127;;; - replaced 4-argument `substitute-key-definition' with ordinary
128;;; `define-key's
129;;; - replaced `mark-active' in menu definition by `cperl-use-region-p'.
130;;; Todo (at least):
131;;; - use emacs-vers.el (http://www.cs.utah.edu/~eeide/emacs/emacs-vers.el.gz)
132;;; for portable code?
133;;; - should `cperl-mode' do a
134;;; (if (featurep 'easymenu) (easy-menu-add cperl-menu))
135;;; or should this be left to the user's `cperl-mode-hook'?
136
137;;; Some bugs introduced by the above fix corrected (IZ ;-).
138;;; Some bugs under XEmacs introduced by the correction corrected.
139
140;;; Some more can remain since there are two many different variants.
141;;; Please feedback!
142
143;;; We do not support fontification of arrays and hashes under
144;;; obsolete font-lock any more. Upgrade.
145
146;;;; after 1.8 Minor bug with parentheses.
147;;;; after 1.9 Improvements from Joe Marzot.
148;;;; after 1.10
149;;; Does not need easymenu to compile under XEmacs.
150;;; `vc-insert-headers' should work better.
151;;; Should work with 19.29 and 19.12.
152;;; Small improvements to fontification.
153;;; Expansion of keywords does not depend on C-? being backspace.
154
155;;; after 1.10+
156;;; 19.29 and 19.12 supported.
157;;; `cperl-font-lock-enhanced' deprecated. Use font-lock-extra.el.
158;;; Support for font-lock-extra.el.
159
160;;;; After 1.11:
161;;; Tools submenu.
162;;; Support for perl5-info.
163;;; `imenu-go-find-at-position' in Tools requires imenu-go.el (see hints above)
164;;; Imenu entries do not work with stock imenu.el. Patch sent to maintainers.
165;;; Fontifies `require a if b;', __DATA__.
166;;; Arglist for auto-fill-mode was incorrect.
167
168;;;; After 1.12:
169;;; `cperl-lineup-step' and `cperl-lineup' added: lineup constructions
170;;; vertically.
171;;; `cperl-do-auto-fill' updated for 19.29 style.
172;;; `cperl-info-on-command' now has a default.
173;;; Workaround for broken C-h on XEmacs.
174;;; VC strings escaped.
175;;; C-h f now may prompt for function name instead of going on,
176;;; controlled by `cperl-info-on-command-no-prompt'.
177
178;;;; After 1.13:
179;;; Msb buffer list includes perl files
180;;; Indent-for-comment uses indent-to
181;;; Can write tag files using etags.
182
183;;;; After 1.14:
184;;; Recognizes (tries to ;-) {...} which are not blocks during indentation.
185;;; `cperl-close-paren-offset' affects ?\] too (and ?\} if not block)
c07a80fd 186;;; Bug with auto-filling comments started with "##" corrected.
187
188;;;; Very slow now: on DB::DB 0.91, 486/66:
189
190;;;Function Name Call Count Elapsed Time Average Time
191;;;======================================== ========== ============ ============
192;;;cperl-block-p 469 3.7799999999 0.0080597014
193;;;cperl-get-state 505 163.39000000 0.3235445544
194;;;cperl-comment-indent 12 0.0299999999 0.0024999999
195;;;cperl-backward-to-noncomment 939 4.4599999999 0.0047497337
196;;;cperl-calculate-indent 505 172.22000000 0.3410297029
197;;;cperl-indent-line 505 172.88000000 0.3423366336
198;;;cperl-use-region-p 40 0.0299999999 0.0007499999
199;;;cperl-indent-exp 1 177.97000000 177.97000000
200;;;cperl-to-comment-or-eol 1453 3.9800000000 0.0027391603
201;;;cperl-backward-to-start-of-continued-exp 9 0.0300000000 0.0033333333
202;;;cperl-indent-region 1 177.94000000 177.94000000
203
204;;;; After 1.15:
205;;; Takes into account white space after opening parentheses during indent.
206;;; May highlight pods and here-documents: see `cperl-pod-here-scan',
207;;; `cperl-pod-here-fontify', `cperl-pod-face'. Does not use this info
208;;; for indentation so far.
209;;; Fontification updated to 19.30 style.
210;;; The change 19.29->30 did not add all the required functionality,
211;;; but broke "font-lock-extra.el". Get "choose-color.el" from
212;;; ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
213
214;;;; After 1.16:
215;;; else # comment
216;;; recognized as a start of a block.
217;;; Two different font-lock-levels provided.
218;;; `cperl-pod-head-face' introduced. Used for highlighting.
219;;; `imenu' marks pods, +Packages moved to the head.
220
221;;;; After 1.17:
222;;; Scan for pods highlights here-docs too.
223;;; Note that the tag of here-doc may be rehighlighted later by lazy-lock.
224;;; Only one here-doc-tag per line is supported, and one in comment
225;;; or a string may break fontification.
226;;; POD headers were supposed to fill one line only.
227
228;;;; After 1.18:
229;;; `font-lock-keywords' were set in 19.30 style _always_. Current scheme
230;;; may break under XEmacs.
231;;; `cperl-calculate-indent' dis suppose that `parse-start' was defined.
232;;; `fontified' tag is added to fontified text as well as `lazy-lock' (for
233;;; compatibility with older lazy-lock.el) (older one overfontifies
234;;; something nevertheless :-().
235;;; Will not indent something inside pod and here-documents.
236;;; Fontifies the package name after import/no/bootstrap.
237;;; Added new entry to menu with meta-info about the mode.
4633a7c4 238
29043b61 239;;;; After 1.19:
240;;; Prefontification works much better with 19.29. Should be checked
241;;; with 19.30 as well.
242;;; Some misprints in docs corrected.
243;;; Now $a{-text} and -text => "blah" are fontified as strings too.
244;;; Now the pod search is much stricter, so it can help you to find
245;;; pod sections which are broken because of whitespace before =blah
246;;; - just observe the fontification.
247
9ea28adb 248;;;; After 1.20
249;;; Anonymous subs are indented with respect to the level of
250;;; indentation of `sub' now.
251;;; {} is recognized as hash after `bless' and `return'.
252;;; Anonymous subs are split by `cperl-linefeed' as well.
253;;; Electric parens embrace a region if present.
254;;; To make `cperl-auto-newline' useful,
255;;; `cperl-auto-newline-after-colon' is introduced.
256;;; `cperl-electric-parens' is now t or nul. The old meaning is moved to
257;;; `cperl-electric-parens-string'.
258;;; `cperl-toggle-auto-newline' introduced, put on C-c C-a.
259;;; `cperl-toggle-abbrev' introduced, put on C-c C-k.
260;;; `cperl-toggle-electric' introduced, put on C-c C-e.
261;;; Beginning-of-defun-regexp was not anchored.
262
263;;;; After 1.21
264;;; Auto-newline grants `cperl-extra-newline-before-brace' if "{" is typed
265;;; after ")".
266;;; {} is recognized as expression after `tr' and friends.
267
268;;;; After 1.22
269;;; Entry Hierarchy added to imenu. Very primitive so far.
270;;; One needs newer `imenu-go'.el. A patch to `imenu' is needed as well.
271;;; Writes its own TAGS files.
272;;; Class viewer based on TAGS files. Does not trace @ISA so far.
273;;; 19.31: Problems with scan for PODs corrected.
274;;; First POD header correctly fontified.
275;;; I needed (setq imenu-use-keymap-menu t) to get good imenu in 19.31.
276;;; Apparently it makes a lot of hierarchy code obsolete...
277
278;;;; After 1.23
279;;; Tags filler now scans *.xs as well.
280;;; The info from *.xs scan is used by the hierarchy viewer.
281;;; Hierarchy viewer documented.
282;;; Bug in 19.31 imenu documented.
283
4633a7c4 284(defvar cperl-extra-newline-before-brace nil
285 "*Non-nil means that if, elsif, while, until, else, for, foreach
286and do constructs look like:
287
288 if ()
289 {
290 }
291
292instead of:
293
294 if () {
295 }
296")
c07a80fd 297
4633a7c4 298(defvar cperl-indent-level 2
299 "*Indentation of CPerl statements with respect to containing block.")
300(defvar cperl-lineup-step nil
301 "*`cperl-lineup' will always lineup at multiple of this number.
302If `nil', the value of `cperl-indent-level' will be used.")
303(defvar cperl-brace-imaginary-offset 0
304 "*Imagined indentation of a Perl open brace that actually follows a statement.
305An open brace following other text is treated as if it were this far
306to the right of the start of its line.")
307(defvar cperl-brace-offset 0
308 "*Extra indentation for braces, compared with other text in same context.")
309(defvar cperl-label-offset -2
310 "*Offset of CPerl label lines relative to usual indentation.")
311(defvar cperl-min-label-indent 1
312 "*Minimal offset of CPerl label lines.")
313(defvar cperl-continued-statement-offset 2
314 "*Extra indent for lines not starting new statements.")
315(defvar cperl-continued-brace-offset 0
316 "*Extra indent for substatements that start with open-braces.
317This is in addition to cperl-continued-statement-offset.")
318(defvar cperl-close-paren-offset -1
319 "*Extra indent for substatements that start with close-parenthesis.")
320
321(defvar cperl-auto-newline nil
322 "*Non-nil means automatically newline before and after braces,
9ea28adb 323and after colons and semicolons, inserted in CPerl code. The following
324\\[cperl-electric-backspace] will remove the inserted whitespace.
325Insertion after colons requires both this variable and
326`cperl-auto-newline-after-colon' set.")
327
328(defvar cperl-auto-newline-after-colon nil
329 "*Non-nil means automatically newline even after colons.
330Subject to `cperl-auto-newline' setting.")
4633a7c4 331
332(defvar cperl-tab-always-indent t
333 "*Non-nil means TAB in CPerl mode should always reindent the current line,
334regardless of where in the line point is when the TAB command is used.")
335
336(defvar cperl-font-lock nil
337 "*Non-nil (and non-null) means CPerl buffers will use font-lock-mode.
338Can be overwritten by `cperl-hairy' if nil.")
339
340(defvar cperl-electric-lbrace-space nil
341 "*Non-nil (and non-null) means { after $ in CPerl buffers should be preceeded by ` '.
342Can be overwritten by `cperl-hairy' if nil.")
343
9ea28adb 344(defvar cperl-electric-parens-string "({[<"
345 "*String of parentheses that should be electric in CPerl.")
346
347(defvar cperl-electric-parens nil
348 "*Non-nil (and non-null) means parentheses should be electric in CPerl.
349Can be overwritten by `cperl-hairy' if nil.")
350(defvar cperl-electric-parens-mark
351 (and window-system
352 (or (and (boundp 'transient-mark-mode) ; For Emacs
353 transient-mark-mode)
354 (and (boundp 'zmacs-regions) ; For XEmacs
355 zmacs-regions)))
356 "*Not-nil means that electric parens look for active mark.
357Default is yes if there is visual feedback on mark.")
358
359(defvar cperl-electric-parens-mark (and window-system transient-mark-mode)
360 "*Not-nil means that electric parens look for active mark.
361Default is yes if there is visual feedback on mark.")
4633a7c4 362
363(defvar cperl-electric-linefeed nil
364 "*If true, LFD should be hairy in CPerl, otherwise C-c LFD is hairy.
365In any case these two mean plain and hairy linefeeds together.
366Can be overwritten by `cperl-hairy' if nil.")
367
368(defvar cperl-electric-keywords nil
369 "*Not-nil (and non-null) means keywords are electric in CPerl.
370Can be overwritten by `cperl-hairy' if nil.")
371
372(defvar cperl-hairy nil
373 "*Not-nil means all the bells and whistles are enabled in CPerl.")
374
375(defvar cperl-comment-column 32
376 "*Column to put comments in CPerl (use \\[cperl-indent]' to lineup with code).")
377
378(defvar cperl-vc-header-alist '((SCCS "$sccs = '%W\%' ;")
379 (RCS "$rcs = ' $Id\$ ' ;"))
380 "*What to use as `vc-header-alist' in CPerl.")
381
382(defvar cperl-info-on-command-no-prompt nil
383 "*Not-nil (and non-null) means not to prompt on C-h f.
384The opposite behaviour is always available if prefixed with C-c.
385Can be overwritten by `cperl-hairy' if nil.")
c07a80fd 386
387(defvar cperl-pod-face 'font-lock-comment-face
388 "*The result of evaluation of this expression is used for pod highlighting.")
389
390(defvar cperl-pod-head-face 'font-lock-variable-name-face
391 "*The result of evaluation of this expression is used for pod highlighting.
392Font for POD headers.")
393
394(defvar cperl-here-face 'font-lock-string-face
395 "*The result of evaluation of this expression is used for here-docs highlighting.")
396
397(defvar cperl-pod-here-fontify '(featurep 'font-lock)
398 "*Not-nil after evaluation means to highlight pod and here-docs sections.")
399
400(defvar cperl-pod-here-scan t
401 "*Not-nil means look for pod and here-docs sections during startup.
402You can always make lookup from menu or using \\[cperl-find-pods-heres].")
403
9ea28adb 404(defvar cperl-imenu-addback nil
405 "*Not-nil means add backreferences to generated `imenu's.
406May require patched `imenu' and `imenu-go'.")
407
c07a80fd 408\f
409
410;;; Short extra-docs.
411
412(defvar cperl-tips 'please-ignore-this-line
413 "Get newest version of this package from
29043b61 414 ftp://ftp.math.ohio-state.edu/pub/users/ilya/emacs
c07a80fd 415and/or
416 ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl
417
9ea28adb 418Get support packages choose-color.el (or font-lock-extra.el before
41919.30), imenu-go.el from the same place. \(Look for other files there
420too... ;-) Get a patch for imenu.el in 19.29. Note that for 19.30 and
421later you should use choose-color.el *instead* of font-lock-extra.el
422\(and you will not get smart highlighting in C :-().
c07a80fd 423
424Note that to enable Compile choices in the menu you need to install
29043b61 425mode-compile.el.
c07a80fd 426
427Get perl5-info from
428 http://www.metronet.com:70/9/perlinfo/perl5/manual/perl5-info.tar.gz
429\(may be quite obsolete, but still useful).
430
9ea28adb 431If you use imenu-go, run imenu on perl5-info buffer (you can do it
432from CPerl menu). If many files are related, generate TAGS files from
433Tools/Tags submenu in CPerl menu.
434
435If some class structure is too complicated, use Tools/Hierarchy-view
436from CPerl menu, or hierarchic view of imenu. The second one is very
437rudimental, the first one requires generation of TAGS from
438CPerl/Tools/Tags menu beforehand.
c07a80fd 439
440Before reporting (non-)problems look in the problem section on what I
441know about them.")
442
443(defvar cperl-problems 'please-ignore-this-line
444"Emacs has a _very_ restricted syntax parsing engine.
445
9ea28adb 446It may be corrected on the level of C code, please look in the
447`non-problems' section if you want to volunteer.
c07a80fd 448
449CPerl mode tries to corrects some Emacs misunderstandings, however,
450for effeciency reasons the degree of correction is different for
451different operations. The partially corrected problems are: POD
452sections, here-documents, regexps. The operations are: highlighting,
453indentation, electric keywords, electric braces.
454
455This may be confusing, since the regexp s#//#/#\; may be highlighted
456as a comment, but it will recognized as a regexp by the indentation
457code. Or the opposite case, when a pod section is highlighted, but
458breaks the indentation of the following code.
459
460The main trick (to make $ a \"backslash\") makes constructions like
461${aaa} look like unbalanced braces. The only trick I can think out is
462to insert it as $ {aaa} (legal in perl5, not in perl4).
463
464Similar problems arise in regexps, when /(\\s|$)/ should be rewritten
465as /($|\\s)/. Note that such a transpositinon is not always possible
466:-(. " )
467
468(defvar cperl-non-problems 'please-ignore-this-line
469"As you know from `problems' section, Perl syntax too hard for CPerl.
470
471Most the time, if you write your own code, you may find an equivalent
472\(and almost as readable) expression.
473
474Try to help it: add comments with embedded quotes to fix CPerl
475misunderstandings about the end of quotation:
476
477$a='500$'; # ';
478
479You won't need it too often. The reason: $ \"quotes\" the following
480character (this saves a life a lot of times in CPerl), thus due to
481Emacs parsing rules it does not consider tick after the dollar as a
482closing one, but as a usual character.
483
484Now the indentation code is pretty wise. The only drawback is that it
485relies on Emacs parsing to find matching parentheses. And Emacs
486*cannot* match parentheses in Perl 100% correctly. So
487 1 if s#//#/#;
488will not break indentation, but
489 1 if ( s#//#/# );
490will.
491
492If you still get wrong indentation in situation that you think the
493code should be able to parse, try:
494
495a) Check what Emacs thinks about balance of your parentheses.
496b) Supply the code to me (IZ).
497
498Pods are treated _very_ rudimentally. Here-documents are not treated
499at all (except highlighting and inhibiting indentation). (This may
500change some time. RMS approved making syntax lookup recognize text
501attributes, but volonteers are needed to change Emacs C code.)
502
503To speed up coloring the following compromises exist:
504 a) sub in $mypackage::sub may be highlighted.
505 b) -z in [a-z] may be highlighted.
506 c) if your regexp contains a keyword (like \"s\"), it may be highlighted.
9ea28adb 507
508
509Imenu in 19.31 is broken. Set `imenu-use-keymap-menu' to t, and remove
510`car' before `imenu-choose-buffer-index' in `imenu'.
c07a80fd 511")
512
4633a7c4 513\f
514
515;;; Portability stuff:
516
517(defsubst cperl-xemacs-p ()
518 (string-match "XEmacs\\|Lucid" emacs-version))
519
520(defvar del-back-ch (car (append (where-is-internal 'delete-backward-char)
521 (where-is-internal 'backward-delete-char-untabify)))
522 "Character generated by key bound to delete-backward-char.")
523
524(and (vectorp del-back-ch) (= (length del-back-ch) 1)
525 (setq del-back-ch (aref del-back-ch 0)))
526
527(if (cperl-xemacs-p)
9ea28adb 528 (progn
529 ;; "Active regions" are on: use region only if active
530 ;; "Active regions" are off: use region unconditionally
531 (defun cperl-use-region-p ()
532 (if zmacs-regions (mark) t))
533 (defun cperl-mark-active () (mark)))
4633a7c4 534 (defun cperl-use-region-p ()
9ea28adb 535 (if transient-mark-mode mark-active t))
536 (defun cperl-mark-active () mark-active))
4633a7c4 537
538(defsubst cperl-enable-font-lock ()
539 (or (cperl-xemacs-p) window-system))
540
541(if (boundp 'unread-command-events)
542 (if (cperl-xemacs-p)
543 (defun cperl-putback-char (c) ; XEmacs >= 19.12
544 (setq unread-command-events (list (character-to-event c))))
545 (defun cperl-putback-char (c) ; Emacs 19
546 (setq unread-command-events (list c))))
547 (defun cperl-putback-char (c) ; XEmacs <= 19.11
548 (setq unread-command-event (character-to-event c))))
549
550(or (fboundp 'uncomment-region)
551 (defun uncomment-region (beg end)
552 (interactive "r")
553 (comment-region beg end -1)))
554
29043b61 555(defvar cperl-do-not-fontify
556 (if (string< emacs-version "19.30")
557 'fontified
558 'lazy-lock)
559 "Text property which inhibits refontification.")
560
9ea28adb 561(defsubst cperl-put-do-not-fontify (from to)
562 (put-text-property (max (point-min) (1- from))
563 to cperl-do-not-fontify t))
564
29043b61 565\f
4633a7c4 566;;; Probably it is too late to set these guys already, but it can help later:
567
568(setq auto-mode-alist
569 (append '(("\\.[pP][Llm]$" . perl-mode)) auto-mode-alist ))
570(and (boundp 'interpreter-mode-alist)
571 (setq interpreter-mode-alist (append interpreter-mode-alist
572 '(("miniperl" . perl-mode)))))
573(if (fboundp 'eval-when-compile)
574 (eval-when-compile
575 (condition-case nil
576 (require 'imenu)
577 (error nil))
578 (condition-case nil
579 (require 'easymenu)
580 (error nil))
581 ;; Calling `cperl-enable-font-lock' below doesn't compile on XEmacs,
582 ;; macros instead of defsubsts don't work on Emacs, so we do the
583 ;; expansion manually. Any other suggestions?
584 (if (or (string-match "XEmacs\\|Lucid" emacs-version)
585 window-system)
586 (require 'font-lock))
587 (require 'cl)
588 ))
589
590(defvar cperl-mode-abbrev-table nil
591 "Abbrev table in use in Cperl-mode buffers.")
592
593(add-hook 'edit-var-mode-alist '(perl-mode (regexp . "^cperl-")))
594
595(defvar cperl-mode-map () "Keymap used in CPerl mode.")
596
597(if cperl-mode-map nil
598 (setq cperl-mode-map (make-sparse-keymap))
599 (define-key cperl-mode-map "{" 'cperl-electric-lbrace)
600 (define-key cperl-mode-map "[" 'cperl-electric-paren)
601 (define-key cperl-mode-map "(" 'cperl-electric-paren)
602 (define-key cperl-mode-map "<" 'cperl-electric-paren)
603 (define-key cperl-mode-map "}" 'cperl-electric-brace)
604 (define-key cperl-mode-map ";" 'cperl-electric-semi)
605 (define-key cperl-mode-map ":" 'cperl-electric-terminator)
606 (define-key cperl-mode-map "\C-j" 'newline-and-indent)
607 (define-key cperl-mode-map "\C-c\C-j" 'cperl-linefeed)
9ea28adb 608 (define-key cperl-mode-map "\C-c\C-a" 'cperl-toggle-auto-newline)
609 (define-key cperl-mode-map "\C-c\C-k" 'cperl-toggle-abbrev)
610 (define-key cperl-mode-map "\C-c\C-e" 'cperl-toggle-electric)
4633a7c4 611 (define-key cperl-mode-map "\e\C-q" 'cperl-indent-exp) ; Usually not bound
612 ;;(define-key cperl-mode-map "\M-q" 'cperl-fill-paragraph)
613 ;;(define-key cperl-mode-map "\e;" 'cperl-indent-for-comment)
9ea28adb 614 (define-key cperl-mode-map "\177" 'cperl-electric-backspace)
4633a7c4 615 (define-key cperl-mode-map "\t" 'cperl-indent-command)
616 (if (cperl-xemacs-p)
617 ;; don't clobber the backspace binding:
618 (define-key cperl-mode-map [(control h) f] 'cperl-info-on-command)
619 (define-key cperl-mode-map "\C-hf" 'cperl-info-on-command))
620 (if (cperl-xemacs-p)
621 ;; don't clobber the backspace binding:
622 (define-key cperl-mode-map [(control c) (control h) f]
623 'cperl-info-on-current-command)
624 (define-key cperl-mode-map "\C-c\C-hf" 'cperl-info-on-current-command))
625 (if (and (cperl-xemacs-p)
626 (<= emacs-minor-version 11) (<= emacs-major-version 19))
627 (progn
628 ;; substitute-key-definition is usefulness-deenhanced...
629 (define-key cperl-mode-map "\M-q" 'cperl-fill-paragraph)
630 (define-key cperl-mode-map "\e;" 'cperl-indent-for-comment)
631 (define-key cperl-mode-map "\e\C-\\" 'cperl-indent-region))
632 (substitute-key-definition
633 'indent-sexp 'cperl-indent-exp
634 cperl-mode-map global-map)
635 (substitute-key-definition
636 'fill-paragraph 'cperl-fill-paragraph
637 cperl-mode-map global-map)
638 (substitute-key-definition
639 'indent-region 'cperl-indent-region
640 cperl-mode-map global-map)
641 (substitute-key-definition
642 'indent-for-comment 'cperl-indent-for-comment
643 cperl-mode-map global-map)))
644
645(condition-case nil
646 (progn
647 (require 'easymenu)
648 (easy-menu-define cperl-menu cperl-mode-map "Menu for CPerl mode"
649 '("Perl"
650 ["Beginning of function" beginning-of-defun t]
651 ["End of function" end-of-defun t]
652 ["Mark function" mark-defun t]
653 ["Indent expression" cperl-indent-exp t]
654 ["Fill paragraph/comment" cperl-fill-paragraph t]
655 ["Line up a construction" cperl-lineup (cperl-use-region-p)]
656 "----"
657 ["Indent region" cperl-indent-region (cperl-use-region-p)]
658 ["Comment region" comment-region (cperl-use-region-p)]
659 ["Uncomment region" uncomment-region (cperl-use-region-p)]
660 "----"
661 ["Run" mode-compile (fboundp 'mode-compile)]
662 ["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
663 (get-buffer "*compilation*"))]
664 ["Next error" next-error (get-buffer "*compilation*")]
665 ["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
666 "----"
667 ["Debugger" perldb t]
668 "----"
669 ("Tools"
670 ["Imenu" imenu (fboundp 'imenu)]
9ea28adb 671 ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
672 ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
4633a7c4 673 ["Imenu on info" cperl-imenu-on-info (featurep 'imenu)]
674 ("Tags"
9ea28adb 675;;; ["Create tags for current file" cperl-etags t]
676;;; ["Add tags for current file" (cperl-etags t) t]
677;;; ["Create tags for Perl files in directory" (cperl-etags nil t) t]
678;;; ["Add tags for Perl files in directory" (cperl-etags t t) t]
679;;; ["Create tags for Perl files in (sub)directories"
680;;; (cperl-etags nil 'recursive) t]
681;;; ["Add tags for Perl files in (sub)directories"
682;;; (cperl-etags t 'recursive) t])
683;;;; cperl-write-tags (&optional file erase recurse dir inbuffer)
684 ["Create tags for current file" (cperl-write-tags nil t) t]
685 ["Add tags for current file" (cperl-write-tags) t]
686 ["Create tags for Perl files in directory"
687 (cperl-write-tags nil t nil t) t]
688 ["Add tags for Perl files in directory"
689 (cperl-write-tags nil nil nil t) t]
4633a7c4 690 ["Create tags for Perl files in (sub)directories"
9ea28adb 691 (cperl-write-tags nil t t t) t]
4633a7c4 692 ["Add tags for Perl files in (sub)directories"
9ea28adb 693 (cperl-write-tags nil nil t t) t])
694 ["Recalculate PODs and HEREs" cperl-find-pods-heres t]
4633a7c4 695 ["Define word at point" imenu-go-find-at-position
696 (fboundp 'imenu-go-find-at-position)]
697 ["Help on function" cperl-info-on-command t]
698 ["Help on function at point" cperl-info-on-current-command t])
9ea28adb 699 ("Toggle..."
700 ["Auto newline" cperl-toggle-auto-newline t]
701 ["Electric parens" cperl-toggle-electric t]
702 ["Electric keywords" cperl-toggle-abbrev t]
703 )
4633a7c4 704 ("Indent styles..."
705 ["GNU" (cperl-set-style "GNU") t]
706 ["C++" (cperl-set-style "C++") t]
707 ["FSF" (cperl-set-style "FSF") t]
708 ["BSD" (cperl-set-style "BSD") t]
c07a80fd 709 ["Whitesmith" (cperl-set-style "Whitesmith") t])
710 ("Micro-docs"
711 ["Tips" (describe-variable 'cperl-tips) t]
712 ["Problems" (describe-variable 'cperl-problems) t]
713 ["Non-problems" (describe-variable 'cperl-non-problems) t]))))
4633a7c4 714 (error nil))
715
716(autoload 'c-macro-expand "cmacexp"
717 "Display the result of expanding all C macros occurring in the region.
718The expansion is entirely correct because it uses the C preprocessor."
719 t)
720
721(defvar cperl-mode-syntax-table nil
722 "Syntax table in use in Cperl-mode buffers.")
723
724(if cperl-mode-syntax-table
725 ()
726 (setq cperl-mode-syntax-table (make-syntax-table))
727 (modify-syntax-entry ?\\ "\\" cperl-mode-syntax-table)
728 (modify-syntax-entry ?/ "." cperl-mode-syntax-table)
729 (modify-syntax-entry ?* "." cperl-mode-syntax-table)
730 (modify-syntax-entry ?+ "." cperl-mode-syntax-table)
731 (modify-syntax-entry ?- "." cperl-mode-syntax-table)
732 (modify-syntax-entry ?= "." cperl-mode-syntax-table)
733 (modify-syntax-entry ?% "." cperl-mode-syntax-table)
734 (modify-syntax-entry ?< "." cperl-mode-syntax-table)
735 (modify-syntax-entry ?> "." cperl-mode-syntax-table)
736 (modify-syntax-entry ?& "." cperl-mode-syntax-table)
737 (modify-syntax-entry ?$ "\\" cperl-mode-syntax-table)
738 (modify-syntax-entry ?\n ">" cperl-mode-syntax-table)
739 (modify-syntax-entry ?# "<" cperl-mode-syntax-table)
740 (modify-syntax-entry ?' "\"" cperl-mode-syntax-table)
741 (modify-syntax-entry ?` "\"" cperl-mode-syntax-table)
742 (modify-syntax-entry ?_ "w" cperl-mode-syntax-table)
743 (modify-syntax-entry ?| "." cperl-mode-syntax-table))
744
745
746\f
747;; Make customization possible "in reverse"
748;;(defun cperl-set (symbol to)
749;; (or (eq (symbol-value symbol) 'null) (set symbol to)))
750(defsubst cperl-val (symbol &optional default hairy)
751 (cond
752 ((eq (symbol-value symbol) 'null) default)
753 (cperl-hairy (or hairy t))
754 (t (symbol-value symbol))))
755\f
756;; provide an alias for working with emacs 19. the perl-mode that comes
757;; with it is really bad, and this lets us seamlessly replace it.
758(fset 'perl-mode 'cperl-mode)
759(defun cperl-mode ()
760 "Major mode for editing Perl code.
761Expression and list commands understand all C brackets.
762Tab indents for Perl code.
763Paragraphs are separated by blank lines only.
764Delete converts tabs to spaces as it moves back.
765
766Various characters in Perl almost always come in pairs: {}, (), [],
767sometimes <>. When the user types the first, she gets the second as
768well, with optional special formatting done on {}. (Disabled by
769default.) You can always quote (with \\[quoted-insert]) the left
770\"paren\" to avoid the expansion. The processing of < is special,
771since most the time you mean \"less\". Cperl mode tries to guess
772whether you want to type pair <>, and inserts is if it
9ea28adb 773appropriate. You can set `cperl-electric-parens-string' to the string that
4633a7c4 774contains the parenths from the above list you want to be electrical.
9ea28adb 775Electricity of parenths is controlled by `cperl-electric-parens'.
776You may also set `cperl-electric-parens-mark' to have electric parens
777look for active mark and \"embrace\" a region if possible.'
4633a7c4 778
779CPerl mode provides expansion of the Perl control constructs:
780 if, else, elsif, unless, while, until, for, and foreach.
781=========(Disabled by default, see `cperl-electric-keywords'.)
782The user types the keyword immediately followed by a space, which causes
783the construct to be expanded, and the user is positioned where she is most
784likely to want to be.
785eg. when the user types a space following \"if\" the following appears in
786the buffer:
787 if () { or if ()
788 } {
789 }
790and the cursor is between the parentheses. The user can then type some
791boolean expression within the parens. Having done that, typing
792\\[cperl-linefeed] places you, appropriately indented on a new line
793between the braces. If CPerl decides that you want to insert
794\"English\" style construct like
795 bite if angry;
796it will not do any expansion. See also help on variable
797`cperl-extra-newline-before-brace'.
798
799\\[cperl-linefeed] is a convinience replacement for typing carriage
800return. It places you in the next line with proper indentation, or if
801you type it inside the inline block of control construct, like
802 foreach (@lines) {print; print}
803and you are on a boundary of a statement inside braces, it will
804transform the construct into a multiline and will place you into an
805apporpriately indented blank line. If you need a usual
806`newline-and-indent' behaviour, it is on \\[newline-and-indent],
807see documentation on `cperl-electric-linefeed'.
808
809\\{cperl-mode-map}
810
811Setting the variable `cperl-font-lock' to t switches on
812font-lock-mode, `cperl-electric-lbrace-space' to t switches on
9ea28adb 813electric space between $ and {, `cperl-electric-parens-string' is the
814string that contains parentheses that should be electric in CPerl (see
815also `cperl-electric-parens-mark' and `cperl-electric-parens'),
816setting `cperl-electric-keywords' enables electric expansion of
817control structures in CPerl. `cperl-electric-linefeed' governs which
818one of two linefeed behavior is preferable. You can enable all these
819options simultaneously (recommended mode of use) by setting
820`cperl-hairy' to t. In this case you can switch separate options off
821by setting them to `null'. Note that one may undo the extra whitespace
822inserted by semis and braces in `auto-newline'-mode by consequent
823\\[cperl-electric-backspace].
4633a7c4 824
825If your site has perl5 documentation in info format, you can use commands
826\\[cperl-info-on-current-command] and \\[cperl-info-on-command] to access it.
827These keys run commands `cperl-info-on-current-command' and
828`cperl-info-on-command', which one is which is controlled by variable
829`cperl-info-on-command-no-prompt' (in turn affected by `cperl-hairy').
830
c07a80fd 831Variables `cperl-pod-here-scan', `cperl-pod-here-fontify',
832`cperl-pod-face', `cperl-pod-head-face' control processing of pod and
833here-docs sections. In a future version results of scan may be used
834for indentation too, currently they are used for highlighting only.
835
4633a7c4 836Variables controlling indentation style:
837 `cperl-tab-always-indent'
838 Non-nil means TAB in CPerl mode should always reindent the current line,
839 regardless of where in the line point is when the TAB command is used.
840 `cperl-auto-newline'
841 Non-nil means automatically newline before and after braces,
9ea28adb 842 and after colons and semicolons, inserted in Perl code. The following
843 \\[cperl-electric-backspace] will remove the inserted whitespace.
844 Insertion after colons requires both this variable and
845 `cperl-auto-newline-after-colon' set.
846 `cperl-auto-newline-after-colon'
847 Non-nil means automatically newline even after colons.
848 Subject to `cperl-auto-newline' setting.
4633a7c4 849 `cperl-indent-level'
850 Indentation of Perl statements within surrounding block.
851 The surrounding block's indentation is the indentation
852 of the line on which the open-brace appears.
853 `cperl-continued-statement-offset'
854 Extra indentation given to a substatement, such as the
855 then-clause of an if, or body of a while, or just a statement continuation.
856 `cperl-continued-brace-offset'
857 Extra indentation given to a brace that starts a substatement.
858 This is in addition to `cperl-continued-statement-offset'.
859 `cperl-brace-offset'
860 Extra indentation for line if it starts with an open brace.
861 `cperl-brace-imaginary-offset'
862 An open brace following other text is treated as if it the line started
863 this far to the right of the actual line indentation.
864 `cperl-label-offset'
865 Extra indentation for line that is a label.
866 `cperl-min-label-indent'
867 Minimal indentation for line that is a label.
868
869Settings for K&R and BSD indentation styles are
870 `cperl-indent-level' 5 8
871 `cperl-continued-statement-offset' 5 8
872 `cperl-brace-offset' -5 -8
873 `cperl-label-offset' -5 -8
874
875If `cperl-indent-level' is 0, the statement after opening brace in column 0 is indented on `cperl-brace-offset'+`cperl-continued-statement-offset'.
876
877Turning on CPerl mode calls the hooks in the variable `cperl-mode-hook'
878with no args."
879 (interactive)
880 (kill-all-local-variables)
881 ;;(if cperl-hairy
882 ;; (progn
883 ;; (cperl-set 'cperl-font-lock cperl-hairy)
884 ;; (cperl-set 'cperl-electric-lbrace-space cperl-hairy)
885 ;; (cperl-set 'cperl-electric-parens "{[(<")
886 ;; (cperl-set 'cperl-electric-keywords cperl-hairy)
887 ;; (cperl-set 'cperl-electric-linefeed cperl-hairy)))
888 (use-local-map cperl-mode-map)
889 (if (cperl-val 'cperl-electric-linefeed)
890 (progn
891 (local-set-key "\C-J" 'cperl-linefeed)
892 (local-set-key "\C-C\C-J" 'newline-and-indent)))
893 (if (cperl-val 'cperl-info-on-command-no-prompt)
894 (progn
895 (if (cperl-xemacs-p)
896 ;; don't clobber the backspace binding:
897 (local-set-key [(control h) f] 'cperl-info-on-current-command)
898 (local-set-key "\C-hf" 'cperl-info-on-current-command))
899 (if (cperl-xemacs-p)
900 ;; don't clobber the backspace binding:
901 (local-set-key [(control c) (control h) f]
902 'cperl-info-on-command)
903 (local-set-key "\C-c\C-hf" 'cperl-info-on-command))))
904 (setq major-mode 'perl-mode)
905 (setq mode-name "CPerl")
906 (if (not cperl-mode-abbrev-table)
907 (let ((prev-a-c abbrevs-changed))
908 (define-abbrev-table 'cperl-mode-abbrev-table '(
909 ("if" "if" cperl-electric-keyword 0)
910 ("elsif" "elsif" cperl-electric-keyword 0)
911 ("while" "while" cperl-electric-keyword 0)
912 ("until" "until" cperl-electric-keyword 0)
913 ("unless" "unless" cperl-electric-keyword 0)
914 ("else" "else" cperl-electric-else 0)
915 ("for" "for" cperl-electric-keyword 0)
916 ("foreach" "foreach" cperl-electric-keyword 0)
917 ("do" "do" cperl-electric-keyword 0)))
918 (setq abbrevs-changed prev-a-c)))
919 (setq local-abbrev-table cperl-mode-abbrev-table)
920 (abbrev-mode (if (cperl-val 'cperl-electric-keywords) 1 0))
921 (set-syntax-table cperl-mode-syntax-table)
922 (make-local-variable 'paragraph-start)
923 (setq paragraph-start (concat "^$\\|" page-delimiter))
924 (make-local-variable 'paragraph-separate)
925 (setq paragraph-separate paragraph-start)
926 (make-local-variable 'paragraph-ignore-fill-prefix)
927 (setq paragraph-ignore-fill-prefix t)
928 (make-local-variable 'indent-line-function)
929 (setq indent-line-function 'cperl-indent-line)
930 (make-local-variable 'require-final-newline)
931 (setq require-final-newline t)
932 (make-local-variable 'comment-start)
933 (setq comment-start "# ")
934 (make-local-variable 'comment-end)
935 (setq comment-end "")
936 (make-local-variable 'comment-column)
937 (setq comment-column cperl-comment-column)
938 (make-local-variable 'comment-start-skip)
939 (setq comment-start-skip "#+ *")
940 (make-local-variable 'defun-prompt-regexp)
9ea28adb 941 (setq defun-prompt-regexp "^[ \t]*sub\\s +\\([^ \t\n{;]+\\)\\s *")
4633a7c4 942 (make-local-variable 'comment-indent-function)
943 (setq comment-indent-function 'cperl-comment-indent)
944 (make-local-variable 'parse-sexp-ignore-comments)
945 (setq parse-sexp-ignore-comments t)
946 (make-local-variable 'indent-region-function)
947 (setq indent-region-function 'cperl-indent-region)
948 ;;(setq auto-fill-function 'cperl-do-auto-fill) ; Need to switch on and off!
949 (make-local-variable 'imenu-create-index-function)
950 (setq imenu-create-index-function
951 (function imenu-example--create-perl-index))
c07a80fd 952 (make-local-variable 'imenu-sort-function)
953 (setq imenu-sort-function nil)
4633a7c4 954 (make-local-variable 'vc-header-alist)
955 (setq vc-header-alist cperl-vc-header-alist)
c07a80fd 956 (make-local-variable 'font-lock-defaults)
957 (setq font-lock-defaults
958 (if (string< emacs-version "19.30")
959 '(perl-font-lock-keywords-2)
960 '((perl-font-lock-keywords
961 perl-font-lock-keywords-1
962 perl-font-lock-keywords-2))))
4633a7c4 963 (or (fboundp 'cperl-old-auto-fill-mode)
964 (progn
965 (fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
966 (defun auto-fill-mode (&optional arg)
967 (interactive "P")
968 (cperl-old-auto-fill-mode arg)
969 (and auto-fill-function (eq major-mode 'perl-mode)
970 (setq auto-fill-function 'cperl-do-auto-fill)))))
971 (if (cperl-enable-font-lock)
c07a80fd 972 (if (cperl-val 'cperl-font-lock)
973 (progn (or cperl-faces-init (cperl-init-faces))
974 (font-lock-mode 1))))
4633a7c4 975 (and (boundp 'msb-menu-cond)
976 (not cperl-msb-fixed)
977 (cperl-msb-fix))
c07a80fd 978 (run-hooks 'cperl-mode-hook)
979 ;; After hooks since fontification will break this
980 (if cperl-pod-here-scan (cperl-find-pods-heres)))
4633a7c4 981\f
982;; Fix for msb.el
983(defvar cperl-msb-fixed nil)
984
985(defun cperl-msb-fix ()
986 ;; Adds perl files to msb menu, supposes that msb is already loaded
987 (setq cperl-msb-fixed t)
988 (let* ((l (length msb-menu-cond))
989 (last (nth (1- l) msb-menu-cond))
990 (precdr (nthcdr (- l 2) msb-menu-cond)) ; cdr of this is last
991 (handle (1- (nth 1 last))))
992 (setcdr precdr (list
993 (list
994 '(eq major-mode 'perl-mode)
995 handle
996 "Perl Files (%d)")
997 last))))
998\f
999;; This is used by indent-for-comment
1000;; to decide how much to indent a comment in CPerl code
1001;; based on its context. Do fallback if comment is found wrong.
1002
1003(defvar cperl-wrong-comment)
1004
1005(defun cperl-comment-indent ()
1006 (let ((p (point)) (c (current-column)) was)
1007 (if (looking-at "^#") 0 ; Existing comment at bol stays there.
1008 ;; Wrong comment found
1009 (save-excursion
1010 (setq was (cperl-to-comment-or-eol))
1011 (if (= (point) p)
1012 (progn
1013 (skip-chars-backward " \t")
1014 (max (1+ (current-column)) ; Else indent at comment column
1015 comment-column))
1016 (if was nil
1017 (insert comment-start)
1018 (backward-char (length comment-start)))
1019 (setq cperl-wrong-comment t)
1020 (indent-to comment-column 1) ; Indent minimum 1
1021 c))))) ; except leave at least one space.
1022
1023;;;(defun cperl-comment-indent-fallback ()
1024;;; "Is called if the standard comment-search procedure fails.
1025;;;Point is at start of real comment."
1026;;; (let ((c (current-column)) target cnt prevc)
1027;;; (if (= c comment-column) nil
1028;;; (setq cnt (skip-chars-backward "[ \t]"))
1029;;; (setq target (max (1+ (setq prevc
1030;;; (current-column))) ; Else indent at comment column
1031;;; comment-column))
1032;;; (if (= c comment-column) nil
1033;;; (delete-backward-char cnt)
1034;;; (while (< prevc target)
1035;;; (insert "\t")
1036;;; (setq prevc (current-column)))
1037;;; (if (> prevc target) (progn (delete-char -1) (setq prevc (current-column))))
1038;;; (while (< prevc target)
1039;;; (insert " ")
1040;;; (setq prevc (current-column)))))))
1041
1042(defun cperl-indent-for-comment ()
1043 "Substite for `indent-for-comment' in CPerl."
1044 (interactive)
1045 (let (cperl-wrong-comment)
1046 (indent-for-comment)
1047 (if cperl-wrong-comment
1048 (progn (cperl-to-comment-or-eol)
1049 (forward-char (length comment-start))))))
1050
1051(defun cperl-electric-brace (arg &optional only-before)
1052 "Insert character and correct line's indentation.
1053If ONLY-BEFORE and `cperl-auto-newline', will insert newline before the
9ea28adb 1054place (even in empty line), but not after. If after \")\" and the inserted
1055char is \"{\", insert extra newline before only if
1056`cperl-extra-newline-before-brace'."
4633a7c4 1057 (interactive "P")
1058 (let (insertpos)
1059 (if (and (not arg) ; No args, end (of empty line or auto)
1060 (eolp)
1061 (or (and (null only-before)
1062 (save-excursion
1063 (skip-chars-backward " \t")
1064 (bolp)))
9ea28adb 1065 (and (eq last-command-char ?\{) ; Do not insert newline
1066 ;; if after ")" and `cperl-extra-newline-before-brace'
1067 ;; is nil, do not insert extra newline.
1068 (not cperl-extra-newline-before-brace)
1069 (save-excursion
1070 (skip-chars-backward " \t")
1071 (eq (preceding-char) ?\))))
4633a7c4 1072 (if cperl-auto-newline
1073 (progn (cperl-indent-line) (newline) t) nil)))
1074 (progn
1075 (if cperl-auto-newline
1076 (setq insertpos (point)))
1077 (insert last-command-char)
1078 (cperl-indent-line)
1079 (if (and cperl-auto-newline (null only-before))
1080 (progn
1081 (newline)
1082 (cperl-indent-line)))
1083 (save-excursion
1084 (if insertpos (progn (goto-char insertpos)
1085 (search-forward (make-string
1086 1 last-command-char))
1087 (setq insertpos (1- (point)))))
1088 (delete-char -1))))
1089 (if insertpos
1090 (save-excursion
1091 (goto-char insertpos)
1092 (self-insert-command (prefix-numeric-value arg)))
1093 (self-insert-command (prefix-numeric-value arg)))))
1094
1095(defun cperl-electric-lbrace (arg)
1096 "Insert character, correct line's indentation, correct quoting by space."
1097 (interactive "P")
9ea28adb 1098 (let (pos after
1099 (cperl-auto-newline cperl-auto-newline)
1100 (other-end (if (and cperl-electric-parens-mark
1101 (cperl-mark-active)
1102 (> (mark) (point)))
1103 (save-excursion
1104 (goto-char (mark))
1105 (point-marker))
1106 nil)))
4633a7c4 1107 (and (cperl-val 'cperl-electric-lbrace-space)
1108 (eq (preceding-char) ?$)
1109 (save-excursion
1110 (skip-chars-backward "$")
1111 (looking-at "\\(\\$\\$\\)*\\$\\([^\\$]\\|$\\)"))
1112 (insert ? ))
9ea28adb 1113 (if (cperl-after-expr-p nil "{};)") nil (setq cperl-auto-newline nil))
4633a7c4 1114 (cperl-electric-brace arg)
9ea28adb 1115 (and (cperl-val 'cperl-electric-parens)
1116 (eq last-command-char ?{)
4633a7c4 1117 (memq last-command-char
9ea28adb 1118 (append cperl-electric-parens-string nil))
1119 (or (if other-end (goto-char (marker-position other-end)))
1120 t)
4633a7c4 1121 (setq last-command-char ?} pos (point))
1122 (progn (cperl-electric-brace arg t)
1123 (goto-char pos)))))
1124
1125(defun cperl-electric-paren (arg)
1126 "Insert a matching pair of parentheses."
1127 (interactive "P")
9ea28adb 1128 (let ((beg (save-excursion (beginning-of-line) (point)))
1129 (other-end (if (and cperl-electric-parens-mark
1130 (cperl-mark-active)
1131 (> (mark) (point)))
1132 (save-excursion
1133 (goto-char (mark))
1134 (point-marker))
1135 nil)))
1136 (if (and (cperl-val 'cperl-electric-parens)
1137 (memq last-command-char
1138 (append cperl-electric-parens-string nil))
4633a7c4 1139 (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
1140 ;;(not (save-excursion (search-backward "#" beg t)))
1141 (if (eq last-command-char ?<)
c07a80fd 1142 (cperl-after-expr-p nil "{};(,:=")
4633a7c4 1143 1))
1144 (progn
1145 (insert last-command-char)
9ea28adb 1146 (if other-end (goto-char (marker-position other-end)))
4633a7c4 1147 (insert (cdr (assoc last-command-char '((?{ .?})
1148 (?[ . ?])
1149 (?( . ?))
1150 (?< . ?>)))))
1151 (forward-char -1))
1152 (insert last-command-char)
1153 )))
1154
1155(defun cperl-electric-keyword ()
1156 "Insert a construction appropriate after a keyword."
9ea28adb 1157 (let ((beg (save-excursion (beginning-of-line) (point)))
1158 (dollar (eq (preceding-char) ?$)))
4633a7c4 1159 (and (save-excursion
1160 (backward-sexp 1)
c07a80fd 1161 (cperl-after-expr-p nil "{};:"))
4633a7c4 1162 (save-excursion
1163 (not
1164 (re-search-backward
1165 "[#\"'`]\\|\\<q\\(\\|[wqx]\\)\\>"
1166 beg t)))
1167 (save-excursion (or (not (re-search-backward "^=" nil t))
1168 (looking-at "=cut")))
1169 (progn
9ea28adb 1170 (and dollar (insert " $"))
4633a7c4 1171 (cperl-indent-line)
1172 ;;(insert " () {\n}")
1173 (cond
1174 (cperl-extra-newline-before-brace
1175 (insert " ()\n")
1176 (insert "{")
1177 (cperl-indent-line)
1178 (insert "\n")
1179 (cperl-indent-line)
1180 (insert "\n}"))
1181 (t
1182 (insert " () {\n}"))
1183 )
1184 (or (looking-at "[ \t]\\|$") (insert " "))
1185 (cperl-indent-line)
9ea28adb 1186 (if dollar (progn (search-backward "$")
1187 (forward-char 1))
1188 (search-backward ")"))
4633a7c4 1189 (cperl-putback-char del-back-ch)))))
1190
1191(defun cperl-electric-else ()
1192 "Insert a construction appropriate after a keyword."
1193 (let ((beg (save-excursion (beginning-of-line) (point))))
1194 (and (save-excursion
1195 (backward-sexp 1)
c07a80fd 1196 (cperl-after-expr-p nil "{};:"))
4633a7c4 1197 (save-excursion
1198 (not
1199 (re-search-backward
1200 "[#\"'`]\\|\\<q\\(\\|[wqx]\\)\\>"
1201 beg t)))
1202 (save-excursion (or (not (re-search-backward "^=" nil t))
1203 (looking-at "=cut")))
1204 (progn
1205 (cperl-indent-line)
1206 ;;(insert " {\n\n}")
1207 (cond
1208 (cperl-extra-newline-before-brace
1209 (insert "\n")
1210 (insert "{")
1211 (cperl-indent-line)
1212 (insert "\n\n}"))
1213 (t
1214 (insert " {\n\n}"))
1215 )
1216 (or (looking-at "[ \t]\\|$") (insert " "))
1217 (cperl-indent-line)
1218 (forward-line -1)
1219 (cperl-indent-line)
1220 (cperl-putback-char del-back-ch)))))
1221
1222(defun cperl-linefeed ()
1223 "Go to end of line, open a new line and indent appropriately."
1224 (interactive)
1225 (let ((beg (save-excursion (beginning-of-line) (point)))
1226 (end (save-excursion (end-of-line) (point)))
1227 (pos (point)) start)
1228 (if (and ; Check if we need to split:
1229 ; i.e., on a boundary and inside "{...}"
4633a7c4 1230 (save-excursion (cperl-to-comment-or-eol)
1231 (>= (point) pos))
1232 (or (save-excursion
1233 (skip-chars-backward " \t" beg)
1234 (forward-char -1)
1235 (looking-at "[;{]"))
1236 (looking-at "[ \t]*}")
1237 (re-search-forward "\\=[ \t]*;" end t))
1238 (save-excursion
1239 (and
1240 (eq (car (parse-partial-sexp pos end -1)) -1)
9ea28adb 1241 (looking-at "[,; \t]*\\($\\|#\\)") ; Comma to allow anon subr
4633a7c4 1242 (progn
1243 (backward-sexp 1)
1244 (setq start (point-marker))
9ea28adb 1245 (<= start pos)))))
4633a7c4 1246 (progn
1247 (skip-chars-backward " \t")
1248 (or (memq (preceding-char) (append ";{" nil))
1249 (insert ";"))
1250 (insert "\n")
1251 (forward-line -1)
1252 (cperl-indent-line)
4633a7c4 1253 (goto-char start)
1254 (or (looking-at "{[ \t]*$") ; If there is a statement
1255 ; before, move it to separate line
1256 (progn
1257 (forward-char 1)
1258 (insert "\n")
1259 (cperl-indent-line)))
1260 (forward-line 1) ; We are on the target line
1261 (cperl-indent-line)
1262 (beginning-of-line)
9ea28adb 1263 (or (looking-at "[ \t]*}[,; \t]*$") ; If there is a statement
4633a7c4 1264 ; after, move it to separate line
1265 (progn
1266 (end-of-line)
1267 (search-backward "}" beg)
1268 (skip-chars-backward " \t")
1269 (or (memq (preceding-char) (append ";{" nil))
1270 (insert ";"))
1271 (insert "\n")
1272 (cperl-indent-line)
1273 (forward-line -1)))
1274 (forward-line -1) ; We are on the line before target
1275 (end-of-line)
1276 (newline-and-indent))
1277 (end-of-line) ; else
1278 (if (not (looking-at "\n[ \t]*$"))
1279 (newline-and-indent)
1280 (forward-line 1)
1281 (cperl-indent-line)))))
1282
1283(defun cperl-electric-semi (arg)
1284 "Insert character and correct line's indentation."
1285 (interactive "P")
1286 (if cperl-auto-newline
1287 (cperl-electric-terminator arg)
1288 (self-insert-command (prefix-numeric-value arg))))
1289
1290(defun cperl-electric-terminator (arg)
1291 "Insert character and correct line's indentation."
1292 (interactive "P")
9ea28adb 1293 (let (insertpos (end (point))
1294 (auto (and cperl-auto-newline
1295 (or (not (eq last-command-char ?:))
1296 cperl-auto-newline-after-colon))))
4633a7c4 1297 (if (and (not arg) (eolp)
1298 (not (save-excursion
1299 (beginning-of-line)
1300 (skip-chars-forward " \t")
c07a80fd 1301 (or
1302 ;; Ignore in comment lines
1303 (= (following-char) ?#)
1304 ;; Colon is special only after a label
1305 ;; So quickly rule out most other uses of colon
1306 ;; and do no indentation for them.
1307 (and (eq last-command-char ?:)
1308 (save-excursion
1309 (forward-word 1)
1310 (skip-chars-forward " \t")
1311 (and (< (point) end)
1312 (progn (goto-char (- end 1))
1313 (not (looking-at ":"))))))
1314 (progn
1315 (beginning-of-defun)
1316 (let ((pps (parse-partial-sexp (point) end)))
1317 (or (nth 3 pps) (nth 4 pps) (nth 5 pps))))))))
4633a7c4 1318 (progn
4633a7c4 1319 (insert last-command-char)
9ea28adb 1320 (forward-char -1)
1321 (if auto (setq insertpos (point-marker)))
1322 (forward-char 1)
4633a7c4 1323 (cperl-indent-line)
9ea28adb 1324 (if auto
4633a7c4 1325 (progn
1326 (newline)
1327 (cperl-indent-line)))
9ea28adb 1328;; (save-excursion
1329;; (if insertpos (progn (goto-char (marker-position insertpos))
1330;; (search-forward (make-string
1331;; 1 last-command-char))
1332;; (setq insertpos (1- (point)))))
1333;; (delete-char -1))))
4633a7c4 1334 (save-excursion
9ea28adb 1335 (if insertpos (goto-char (marker-position insertpos))
1336 (forward-char -1))
1337 (delete-char 1))))
4633a7c4 1338 (if insertpos
1339 (save-excursion
1340 (goto-char insertpos)
1341 (self-insert-command (prefix-numeric-value arg)))
1342 (self-insert-command (prefix-numeric-value arg)))))
1343
9ea28adb 1344(defun cperl-electric-backspace (arg)
1345 "Backspace-untabify, or remove the whitespace inserted by an electric key."
1346 (interactive "p")
1347 (if (and cperl-auto-newline
1348 (memq last-command '(cperl-electric-semi
1349 cperl-electric-terminator
1350 cperl-electric-lbrace))
1351 (memq (preceding-char) '(? ?\t ?\n)))
1352 (let (p)
1353 (if (eq last-command 'cperl-electric-lbrace)
1354 (skip-chars-forward " \t\n"))
1355 (setq p (point))
1356 (skip-chars-backward " \t\n")
1357 (delete-region (point) p))
1358 (backward-delete-char-untabify arg)))
1359
4633a7c4 1360(defun cperl-inside-parens-p ()
1361 (condition-case ()
1362 (save-excursion
1363 (save-restriction
1364 (narrow-to-region (point)
1365 (progn (beginning-of-defun) (point)))
1366 (goto-char (point-max))
1367 (= (char-after (or (scan-lists (point) -1 1) (point-min))) ?\()))
1368 (error nil)))
1369\f
1370(defun cperl-indent-command (&optional whole-exp)
4633a7c4 1371 "Indent current line as Perl code, or in some cases insert a tab character.
1372If `cperl-tab-always-indent' is non-nil (the default), always indent current line.
1373Otherwise, indent the current line only if point is at the left margin
1374or in the line's indentation; otherwise insert a tab.
1375
1376A numeric argument, regardless of its value,
1377means indent rigidly all the lines of the expression starting after point
1378so that this line becomes properly indented.
1379The relative indentation among the lines of the expression are preserved."
9ea28adb 1380 (interactive "P")
4633a7c4 1381 (if whole-exp
1382 ;; If arg, always indent this line as Perl
1383 ;; and shift remaining lines of expression the same amount.
1384 (let ((shift-amt (cperl-indent-line))
1385 beg end)
1386 (save-excursion
1387 (if cperl-tab-always-indent
1388 (beginning-of-line))
1389 (setq beg (point))
1390 (forward-sexp 1)
1391 (setq end (point))
1392 (goto-char beg)
1393 (forward-line 1)
1394 (setq beg (point)))
1395 (if (> end beg)
1396 (indent-code-rigidly beg end shift-amt "#")))
1397 (if (and (not cperl-tab-always-indent)
1398 (save-excursion
1399 (skip-chars-backward " \t")
1400 (not (bolp))))
1401 (insert-tab)
1402 (cperl-indent-line))))
1403
1404(defun cperl-indent-line (&optional symbol)
1405 "Indent current line as Perl code.
1406Return the amount the indentation changed by."
1407 (let (indent
1408 beg shift-amt
1409 (case-fold-search nil)
1410 (pos (- (point-max) (point))))
1411 (setq indent (cperl-calculate-indent nil symbol))
1412 (beginning-of-line)
1413 (setq beg (point))
1414 (cond ((eq indent nil)
1415 (setq indent (current-indentation)))
1416 ;;((eq indent t) ; Never?
1417 ;; (setq indent (cperl-calculate-indent-within-comment)))
1418 ;;((looking-at "[ \t]*#")
1419 ;; (setq indent 0))
1420 (t
1421 (skip-chars-forward " \t")
1422 (if (listp indent) (setq indent (car indent)))
1423 (cond ((looking-at "[A-Za-z]+:[^:]")
1424 (and (> indent 0)
1425 (setq indent (max cperl-min-label-indent
1426 (+ indent cperl-label-offset)))))
4633a7c4 1427 ((= (following-char) ?})
1428 (setq indent (- indent cperl-indent-level)))
1429 ((memq (following-char) '(?\) ?\])) ; To line up with opening paren.
1430 (setq indent (+ indent cperl-close-paren-offset)))
1431 ((= (following-char) ?{)
1432 (setq indent (+ indent cperl-brace-offset))))))
1433 (skip-chars-forward " \t")
1434 (setq shift-amt (- indent (current-column)))
1435 (if (zerop shift-amt)
1436 (if (> (- (point-max) pos) (point))
1437 (goto-char (- (point-max) pos)))
1438 (delete-region beg (point))
1439 (indent-to indent)
1440 ;; If initial point was within line's indentation,
1441 ;; position after the indentation. Else stay at same point in text.
1442 (if (> (- (point-max) pos) (point))
1443 (goto-char (- (point-max) pos))))
1444 shift-amt))
1445
c07a80fd 1446(defun cperl-after-label ()
4633a7c4 1447 ;; Returns true if the point is after label. Does not do save-excursion.
1448 (and (eq (preceding-char) ?:)
1449 (memq (char-syntax (char-after (- (point) 2)))
1450 '(?w ?_))
1451 (progn
1452 (backward-sexp)
1453 (looking-at "[a-zA-Z_][a-zA-Z0-9_]*:"))))
1454
c07a80fd 1455(defun cperl-get-state (&optional parse-start start-state)
1456 ;; returns list (START STATE DEPTH PRESTART), START is a good place
1457 ;; to start parsing, STATE is what is returned by
1458 ;; `parse-partial-sexp'. DEPTH is true is we are immediately after
1459 ;; end of block which contains START. PRESTART is the position
1460 ;; basing on which START was found.
4633a7c4 1461 (save-excursion
c07a80fd 1462 (let ((start-point (point)) depth state start prestart)
4633a7c4 1463 (if parse-start
1464 (goto-char parse-start)
1465 (beginning-of-defun))
c07a80fd 1466 (setq prestart (point))
4633a7c4 1467 (if start-state nil
c07a80fd 1468 ;; Try to go out, if sub is not on the outermost level
1469 (while (< (point) start-point)
1470 (setq start (point) parse-start start depth nil
1471 state (parse-partial-sexp start start-point -1))
4633a7c4 1472 (if (> (car state) -1) nil
1473 ;; The current line could start like }}}, so the indentation
1474 ;; corresponds to a different level than what we reached
c07a80fd 1475 (setq depth t)
4633a7c4 1476 (beginning-of-line 2))) ; Go to the next line.
c07a80fd 1477 (if start (goto-char start))) ; Not at the start of file
1478 (setq start (point))
1479 (if (< start start-point) (setq parse-start start))
1480 (or state (setq state (parse-partial-sexp start start-point -1 nil start-state)))
1481 (list start state depth prestart))))
1482
1483(defun cperl-block-p () ; Do not C-M-q ! One string contains ";" !
1484 ;; Positions is before ?\{. Checks whether it starts a block.
1485 ;; No save-excursion!
1486 (cperl-backward-to-noncomment (point-min))
1487 ;;(skip-chars-backward " \t\n\f")
1488 (or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
4633a7c4 1489 ; Label may be mixed up with `$blah :'
c07a80fd 1490 (save-excursion (cperl-after-label))
1491 (and (eq (char-syntax (preceding-char)) ?w)
1492 (progn
1493 (backward-sexp)
9ea28adb 1494 ;; Need take into account `bless', `return', `tr',...
1495 (or (and (looking-at "\\sw+[ \t\n\f]*[{#]") ; Method call syntax
1496 (not (looking-at "\\(bless\\|return\\|qw\\|tr\\|[smy]\\)\\>")))
4633a7c4 1497 (progn
c07a80fd 1498 (skip-chars-backward " \t\n\f")
1499 (and (eq (char-syntax (preceding-char)) ?w)
1500 (progn
1501 (backward-sexp)
1502 (looking-at
1503 "sub[ \t]+\\sw+[ \t\n\f]*[#{]")))))))))
4633a7c4 1504
c07a80fd 1505(defun cperl-calculate-indent (&optional parse-start symbol)
1506 "Return appropriate indentation for current line as Perl code.
1507In usual case returns an integer: the column to indent to.
1508Returns nil if line starts inside a string, t if in a comment."
1509 (save-excursion
1510 (if (memq (get-text-property (point) 'syntax-type) '(pod here-doc)) nil
1511 (beginning-of-line)
1512 (let* ((indent-point (point))
1513 (case-fold-search nil)
1514 (s-s (cperl-get-state))
1515 (start (nth 0 s-s))
1516 (state (nth 1 s-s))
1517 (containing-sexp (car (cdr state)))
1518 (char-after (save-excursion
1519 (skip-chars-forward " \t")
1520 (following-char)))
1521 (start-indent (save-excursion
1522 (goto-char start)
1523 (- (current-indentation)
1524 (if (nth 2 s-s) cperl-indent-level 0))))
1525 old-indent)
1526 ;; (or parse-start (null symbol)
1527 ;; (setq parse-start (symbol-value symbol)
1528 ;; start-indent (nth 2 parse-start)
1529 ;; parse-start (car parse-start)))
1530 ;; (if parse-start
1531 ;; (goto-char parse-start)
1532 ;; (beginning-of-defun))
1533 ;; ;; Try to go out
1534 ;; (while (< (point) indent-point)
1535 ;; (setq start (point) parse-start start moved nil
1536 ;; state (parse-partial-sexp start indent-point -1))
1537 ;; (if (> (car state) -1) nil
1538 ;; ;; The current line could start like }}}, so the indentation
1539 ;; ;; corresponds to a different level than what we reached
1540 ;; (setq moved t)
1541 ;; (beginning-of-line 2))) ; Go to the next line.
1542 ;; (if start ; Not at the start of file
1543 ;; (progn
1544 ;; (goto-char start)
1545 ;; (setq start-indent (current-indentation))
1546 ;; (if moved ; Should correct...
1547 ;; (setq start-indent (- start-indent cperl-indent-level))))
1548 ;; (setq start-indent 0))
1549 ;; (if (< (point) indent-point) (setq parse-start (point)))
1550 ;; (or state (setq state (parse-partial-sexp
1551 ;; (point) indent-point -1 nil start-state)))
1552 ;; (setq containing-sexp
1553 ;; (or (car (cdr state))
1554 ;; (and (>= (nth 6 state) 0) old-containing-sexp))
1555 ;; old-containing-sexp nil start-state nil)
1556;;;; (while (< (point) indent-point)
1557;;;; (setq parse-start (point))
1558;;;; (setq state (parse-partial-sexp (point) indent-point -1 nil start-state))
1559;;;; (setq containing-sexp
1560;;;; (or (car (cdr state))
1561;;;; (and (>= (nth 6 state) 0) old-containing-sexp))
1562;;;; old-containing-sexp nil start-state nil))
1563 ;; (if symbol (set symbol (list indent-point state start-indent)))
1564 ;; (goto-char indent-point)
1565 (cond ((or (nth 3 state) (nth 4 state))
1566 ;; return nil or t if should not change this line
1567 (nth 4 state))
1568 ((null containing-sexp)
1569 ;; Line is at top level. May be data or function definition,
1570 ;; or may be function argument declaration.
1571 ;; Indent like the previous top level line
1572 ;; unless that ends in a closeparen without semicolon,
1573 ;; in which case this line is the first argument decl.
1574 (skip-chars-forward " \t")
1575 (+ start-indent
1576 (if (= (following-char) ?{) cperl-continued-brace-offset 0)
1577 (progn
1578 (cperl-backward-to-noncomment (or parse-start (point-min)))
1579 ;;(skip-chars-backward " \t\f\n")
1580 ;; Look at previous line that's at column 0
1581 ;; to determine whether we are in top-level decls
1582 ;; or function's arg decls. Set basic-indent accordingly.
1583 ;; Now add a little if this is a continuation line.
1584 (if (or (bobp)
1585 (memq (preceding-char) (append " ;}" nil)) ; Was ?\)
1586 (memq char-after (append ")]}" nil)))
1587 0
1588 cperl-continued-statement-offset))))
1589 ((/= (char-after containing-sexp) ?{)
1590 ;; line is expression, not statement:
1591 ;; indent to just after the surrounding open,
1592 ;; skip blanks if we do not close the expression.
1593 (goto-char (1+ containing-sexp))
1594 (or (memq char-after (append ")]}" nil))
1595 (looking-at "[ \t]*\\(#\\|$\\)")
1596 (skip-chars-forward " \t"))
1597 (current-column))
1598 ((progn
1599 ;; Containing-expr starts with \{. Check whether it is a hash.
1600 (goto-char containing-sexp)
1601 (not (cperl-block-p)))
1602 (goto-char (1+ containing-sexp))
1603 (or (eq char-after ?\})
1604 (looking-at "[ \t]*\\(#\\|$\\)")
1605 (skip-chars-forward " \t"))
1606 (+ (current-column) ; Correct indentation of trailing ?\}
1607 (if (eq char-after ?\}) (+ cperl-indent-level
1608 cperl-close-paren-offset)
1609 0)))
1610 (t
1611 ;; Statement level. Is it a continuation or a new statement?
1612 ;; Find previous non-comment character.
1613 (goto-char indent-point)
1614 (cperl-backward-to-noncomment containing-sexp)
1615 ;; Back up over label lines, since they don't
1616 ;; affect whether our line is a continuation.
1617 (while (or (eq (preceding-char) ?\,)
1618 (and (eq (preceding-char) ?:)
1619 (or;;(eq (char-after (- (point) 2)) ?\') ; ????
1620 (memq (char-syntax (char-after (- (point) 2)))
1621 '(?w ?_)))))
1622 (if (eq (preceding-char) ?\,)
1623 ;; Will go to beginning of line, essentially.
1624 ;; Will ignore embedded sexpr XXXX.
1625 (cperl-backward-to-start-of-continued-exp containing-sexp))
1626 (beginning-of-line)
1627 (cperl-backward-to-noncomment containing-sexp))
1628 ;; Now we get the answer.
1629 (if (not (memq (preceding-char) (append ", ;}{" '(nil)))) ; Was ?\,
1630 ;; This line is continuation of preceding line's statement;
1631 ;; indent `cperl-continued-statement-offset' more than the
1632 ;; previous line of the statement.
4633a7c4 1633 (progn
c07a80fd 1634 (cperl-backward-to-start-of-continued-exp containing-sexp)
1635 (+ (if (memq char-after (append "}])" nil))
1636 0 ; Closing parenth
1637 cperl-continued-statement-offset)
1638 (current-column)
1639 (if (eq char-after ?\{)
1640 cperl-continued-brace-offset 0)))
1641 ;; This line starts a new statement.
1642 ;; Position following last unclosed open.
1643 (goto-char containing-sexp)
1644 ;; Is line first statement after an open-brace?
1645 (or
1646 ;; If no, find that first statement and indent like
1647 ;; it. If the first statement begins with label, do
1648 ;; not belive when the indentation of the label is too
1649 ;; small.
1650 (save-excursion
1651 (forward-char 1)
1652 (setq old-indent (current-indentation))
1653 (let ((colon-line-end 0))
1654 (while (progn (skip-chars-forward " \t\n")
1655 (looking-at "#\\|[a-zA-Z0-9_$]*:[^:]"))
1656 ;; Skip over comments and labels following openbrace.
1657 (cond ((= (following-char) ?\#)
1658 (forward-line 1))
1659 ;; label:
1660 (t
1661 (save-excursion (end-of-line)
1662 (setq colon-line-end (point)))
1663 (search-forward ":"))))
1664 ;; The first following code counts
1665 ;; if it is before the line we want to indent.
1666 (and (< (point) indent-point)
1667 (if (> colon-line-end (point)) ; After label
1668 (if (> (current-indentation)
1669 cperl-min-label-indent)
1670 (- (current-indentation) cperl-label-offset)
1671 ;; Do not belive: `max' is involved
1672 (+ old-indent cperl-indent-level))
1673 (current-column)))))
1674 ;; If no previous statement,
1675 ;; indent it relative to line brace is on.
1676 ;; For open brace in column zero, don't let statement
1677 ;; start there too. If cperl-indent-level is zero,
1678 ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
1679 ;; For open-braces not the first thing in a line,
1680 ;; add in cperl-brace-imaginary-offset.
1681
1682 ;; If first thing on a line: ?????
1683 (+ (if (and (bolp) (zerop cperl-indent-level))
1684 (+ cperl-brace-offset cperl-continued-statement-offset)
1685 cperl-indent-level)
1686 ;; Move back over whitespace before the openbrace.
1687 ;; If openbrace is not first nonwhite thing on the line,
1688 ;; add the cperl-brace-imaginary-offset.
1689 (progn (skip-chars-backward " \t")
1690 (if (bolp) 0 cperl-brace-imaginary-offset))
1691 ;; If the openbrace is preceded by a parenthesized exp,
1692 ;; move to the beginning of that;
1693 ;; possibly a different line
1694 (progn
1695 (if (eq (preceding-char) ?\))
1696 (forward-sexp -1))
9ea28adb 1697 ;; In the case it starts a subroutine, indent with
1698 ;; respect to `sub', not with respect to the the
1699 ;; first thing on the line, say in the case of
1700 ;; anonymous sub in a hash.
1701 ;;
1702 (skip-chars-backward " \t")
1703 (if (and (eq (preceding-char) ?b)
1704 (progn
1705 (forward-word -1)
1706 (looking-at "sub\\>"))
1707 (setq old-indent
1708 (nth 1
1709 (parse-partial-sexp
1710 (save-excursion (beginning-of-line) (point))
1711 (point)))))
1712 (progn (goto-char (1+ old-indent))
1713 (skip-chars-forward " \t")
1714 (current-column))
1715 ;; Get initial indentation of the line we are on.
1716 ;; If line starts with label, calculate label indentation
1717 (if (save-excursion
1718 (beginning-of-line)
1719 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_]*:[^:]"))
1720 (if (> (current-indentation) cperl-min-label-indent)
1721 (- (current-indentation) cperl-label-offset)
1722 (cperl-calculate-indent
1723 (if (and parse-start (<= parse-start (point)))
1724 parse-start)))
1725 (current-indentation)))))))))))))
4633a7c4 1726
1727(defvar cperl-indent-alist
1728 '((string nil)
1729 (comment nil)
1730 (toplevel 0)
1731 (toplevel-after-parenth 2)
1732 (toplevel-continued 2)
1733 (expression 1))
1734 "Alist of indentation rules for CPerl mode.
1735The values mean:
1736 nil: do not indent;
1737 number: add this amount of indentation.")
1738
1739(defun cperl-where-am-i (&optional parse-start start-state)
1740 ;; Unfinished
c07a80fd 1741 "Return a list of lists ((TYPE POS)...) of good points before the point.
4633a7c4 1742POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'."
1743 (save-excursion
c07a80fd 1744 (let* ((start-point (point))
1745 (s-s (cperl-get-state))
1746 (start (nth 0 s-s))
1747 (state (nth 1 s-s))
1748 (prestart (nth 3 s-s))
1749 (containing-sexp (car (cdr state)))
1750 (case-fold-search nil)
1751 (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
4633a7c4 1752 (cond ((nth 3 state) ; In string
c07a80fd 1753 (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
4633a7c4 1754 ((nth 4 state) ; In comment
c07a80fd 1755 (setq res (cons '(comment) res)))
4633a7c4 1756 ((null containing-sexp)
1757 ;; Line is at top level.
1758 ;; Indent like the previous top level line
1759 ;; unless that ends in a closeparen without semicolon,
1760 ;; in which case this line is the first argument decl.
1761 (cperl-backward-to-noncomment (or parse-start (point-min)))
c07a80fd 1762 ;;(skip-chars-backward " \t\f\n")
4633a7c4 1763 (cond
1764 ((or (bobp)
1765 (memq (preceding-char) (append ";}" nil)))
c07a80fd 1766 (setq res (cons (list 'toplevel start) res)))
4633a7c4 1767 ((eq (preceding-char) ?\) )
c07a80fd 1768 (setq res (cons (list 'toplevel-after-parenth start) res)))
1769 (t
1770 (setq res (cons (list 'toplevel-continued start) res)))))
4633a7c4 1771 ((/= (char-after containing-sexp) ?{)
1772 ;; line is expression, not statement:
1773 ;; indent to just after the surrounding open.
c07a80fd 1774 ;; skip blanks if we do not close the expression.
1775 (setq res (cons (list 'expression-blanks
1776 (progn
1777 (goto-char (1+ containing-sexp))
1778 (or (looking-at "[ \t]*\\(#\\|$\\)")
1779 (skip-chars-forward " \t"))
1780 (point)))
1781 (cons (list 'expression containing-sexp) res))))
4633a7c4 1782 ((progn
1783 ;; Containing-expr starts with \{. Check whether it is a hash.
1784 (goto-char containing-sexp)
c07a80fd 1785 (not (cperl-block-p)))
1786 (setq res (cons (list 'expression-blanks
1787 (progn
1788 (goto-char (1+ containing-sexp))
1789 (or (looking-at "[ \t]*\\(#\\|$\\)")
1790 (skip-chars-forward " \t"))
1791 (point)))
1792 (cons (list 'expression containing-sexp) res))))
4633a7c4 1793 (t
c07a80fd 1794 ;; Statement level.
1795 (setq res (cons (list 'in-block containing-sexp) res))
1796 ;; Is it a continuation or a new statement?
4633a7c4 1797 ;; Find previous non-comment character.
1798 (cperl-backward-to-noncomment containing-sexp)
1799 ;; Back up over label lines, since they don't
1800 ;; affect whether our line is a continuation.
c07a80fd 1801 ;; Back up comma-delimited lines too ?????
4633a7c4 1802 (while (or (eq (preceding-char) ?\,)
c07a80fd 1803 (save-excursion (cperl-after-label)))
4633a7c4 1804 (if (eq (preceding-char) ?\,)
c07a80fd 1805 ;; Will go to beginning of line, essentially
1806 ;; Will ignore embedded sexpr XXXX.
4633a7c4 1807 (cperl-backward-to-start-of-continued-exp containing-sexp))
1808 (beginning-of-line)
1809 (cperl-backward-to-noncomment containing-sexp))
1810 ;; Now we get the answer.
1811 (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
1812 ;; This line is continuation of preceding line's statement.
c07a80fd 1813 (list (list 'statement-continued containing-sexp))
4633a7c4 1814 ;; This line starts a new statement.
1815 ;; Position following last unclosed open.
1816 (goto-char containing-sexp)
1817 ;; Is line first statement after an open-brace?
1818 (or
1819 ;; If no, find that first statement and indent like
1820 ;; it. If the first statement begins with label, do
1821 ;; not belive when the indentation of the label is too
1822 ;; small.
1823 (save-excursion
1824 (forward-char 1)
4633a7c4 1825 (let ((colon-line-end 0))
c07a80fd 1826 (while (progn (skip-chars-forward " \t\n" start-point)
1827 (and (< (point) start-point)
1828 (looking-at
1829 "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
4633a7c4 1830 ;; Skip over comments and labels following openbrace.
1831 (cond ((= (following-char) ?\#)
c07a80fd 1832 ;;(forward-line 1)
1833 (end-of-line))
4633a7c4 1834 ;; label:
1835 (t
1836 (save-excursion (end-of-line)
1837 (setq colon-line-end (point)))
1838 (search-forward ":"))))
c07a80fd 1839 ;; Now at the point, after label, or at start
1840 ;; of first statement in the block.
4633a7c4 1841 (and (< (point) start-point)
c07a80fd 1842 (if (> colon-line-end (point))
1843 ;; Before statement after label
4633a7c4 1844 (if (> (current-indentation)
1845 cperl-min-label-indent)
c07a80fd 1846 (list (list 'label-in-block (point)))
4633a7c4 1847 ;; Do not belive: `max' is involved
c07a80fd 1848 (list
1849 (list 'label-in-block-min-indent (point))))
1850 ;; Before statement
1851 (list 'statement-in-block (point))))))
4633a7c4 1852 ;; If no previous statement,
1853 ;; indent it relative to line brace is on.
1854 ;; For open brace in column zero, don't let statement
1855 ;; start there too. If cperl-indent-level is zero,
1856 ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
1857 ;; For open-braces not the first thing in a line,
1858 ;; add in cperl-brace-imaginary-offset.
1859
1860 ;; If first thing on a line: ?????
1861 (+ (if (and (bolp) (zerop cperl-indent-level))
1862 (+ cperl-brace-offset cperl-continued-statement-offset)
1863 cperl-indent-level)
1864 ;; Move back over whitespace before the openbrace.
1865 ;; If openbrace is not first nonwhite thing on the line,
1866 ;; add the cperl-brace-imaginary-offset.
1867 (progn (skip-chars-backward " \t")
1868 (if (bolp) 0 cperl-brace-imaginary-offset))
1869 ;; If the openbrace is preceded by a parenthesized exp,
1870 ;; move to the beginning of that;
1871 ;; possibly a different line
1872 (progn
1873 (if (eq (preceding-char) ?\))
1874 (forward-sexp -1))
1875 ;; Get initial indentation of the line we are on.
1876 ;; If line starts with label, calculate label indentation
1877 (if (save-excursion
1878 (beginning-of-line)
1879 (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_]*:[^:]"))
1880 (if (> (current-indentation) cperl-min-label-indent)
1881 (- (current-indentation) cperl-label-offset)
1882 (cperl-calculate-indent
c07a80fd 1883 (if (and parse-start (<= parse-start (point)))
1884 parse-start)))
1885 (current-indentation))))))))
1886 res)))
4633a7c4 1887
1888(defun cperl-calculate-indent-within-comment ()
1889 "Return the indentation amount for line, assuming that
1890the current line is to be regarded as part of a block comment."
1891 (let (end star-start)
1892 (save-excursion
1893 (beginning-of-line)
1894 (skip-chars-forward " \t")
1895 (setq end (point))
1896 (and (= (following-char) ?#)
1897 (forward-line -1)
1898 (cperl-to-comment-or-eol)
1899 (setq end (point)))
1900 (goto-char end)
1901 (current-column))))
1902
1903
1904(defun cperl-to-comment-or-eol ()
1905 "Goes to position before comment on the current line, or to end of line.
1906Returns true if comment is found."
1907 (let (state stop-in cpoint (lim (progn (end-of-line) (point))))
1908 (beginning-of-line)
1909 (if (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t)
1910 (if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
1911 ;; Else
1912 (while (not stop-in)
1913 (setq state (parse-partial-sexp (point) lim nil nil nil t))
1914 ; stop at comment
1915 ;; If fails (beginning-of-line inside sexp), then contains not-comment
1916 ;; Do simplified processing
1917 ;;(if (re-search-forward "[^$]#" lim 1)
1918 ;; (progn
1919 ;; (forward-char -1)
1920 ;; (skip-chars-backward " \t\n\f" lim))
1921 ;; (goto-char lim)) ; No `#' at all
1922 ;;)
1923 (if (nth 4 state) ; After `#';
1924 ; (nth 2 state) can be
1925 ; beginning of m,s,qq and so
1926 ; on
1927 (if (nth 2 state)
1928 (progn
1929 (setq cpoint (point))
1930 (goto-char (nth 2 state))
1931 (cond
1932 ((looking-at "\\(s\\|tr\\)\\>")
1933 (or (re-search-forward
1934 "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*"
1935 lim 'move)
1936 (setq stop-in t)))
1937 ((looking-at "\\(m\\|q\\([qxw]\\)?\\)\\>")
1938 (or (re-search-forward
1939 "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#"
1940 lim 'move)
1941 (setq stop-in t)))
1942 (t ; It was fair comment
1943 (setq stop-in t) ; Finish
1944 (goto-char (1- cpoint)))))
1945 (setq stop-in t) ; Finish
1946 (forward-char -1))
1947 (setq stop-in t)) ; Finish
1948 )
1949 (nth 4 state))))
1950
c07a80fd 1951(defun cperl-find-pods-heres (&optional min max)
1952 "Scans the buffer for POD sections and here-documents.
1953If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
1954the sections using `cperl-pod-head-face', `cperl-pod-face',
1955`cperl-here-face'."
1956 (interactive)
1957 (or min (setq min (point-min)))
1958 (or max (setq max (point-max)))
1959 (let (face head-face here-face b e bb tag err
1960 (cperl-pod-here-fontify (eval cperl-pod-here-fontify))
1961 (case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
9ea28adb 1962 (modified (buffer-modified-p))
1963 (after-change-functions nil))
c07a80fd 1964 (unwind-protect
1965 (progn
1966 (save-excursion
1967 (message "Scanning for pods and here-docs...")
1968 (if cperl-pod-here-fontify
1969 (setq face (eval cperl-pod-face)
1970 head-face (eval cperl-pod-head-face)
1971 here-face (eval cperl-here-face)))
1972 (remove-text-properties min max '(syntax-type t))
1973 ;; Need to remove face as well...
1974 (goto-char min)
29043b61 1975 (while (re-search-forward "\\(\\`\n?\\|\n\n\\)=" max t)
1976 (if (looking-at "\n*cut\\>")
c07a80fd 1977 (progn
1978 (message "=cut is not preceeded by a pod section")
1979 (setq err (point)))
1980 (beginning-of-line)
9ea28adb 1981
c07a80fd 1982 (setq b (point) bb b)
29043b61 1983 (or (re-search-forward "\n\n=cut\\>" max 'toend)
1984 (message "Cannot find the end of a pod section"))
9ea28adb 1985 (beginning-of-line 3)
c07a80fd 1986 (setq e (point))
1987 (put-text-property b e 'in-pod t)
1988 (goto-char b)
1989 (while (re-search-forward "\n\n[ \t]" e t)
1990 (beginning-of-line)
1991 (put-text-property b (point) 'syntax-type 'pod)
9ea28adb 1992 (cperl-put-do-not-fontify b (point))
1993 ;;(put-text-property (max (point-min) (1- b))
1994 ;; (point) cperl-do-not-fontify t)
c07a80fd 1995 (if cperl-pod-here-fontify (put-text-property b (point) 'face face))
1996 (re-search-forward "\n\n[^ \t\f]" e 'toend)
1997 (beginning-of-line)
1998 (setq b (point)))
1999 (put-text-property (point) e 'syntax-type 'pod)
9ea28adb 2000 (cperl-put-do-not-fontify (point) e)
2001 ;;(put-text-property (max (point-min) (1- (point)))
2002 ;; e cperl-do-not-fontify t)
c07a80fd 2003 (if cperl-pod-here-fontify
2004 (progn (put-text-property (point) e 'face face)
2005 (goto-char bb)
9ea28adb 2006 (if (looking-at
2007 "=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
2008 (put-text-property
2009 (match-beginning 1) (match-end 1)
2010 'face head-face))
c07a80fd 2011 (while (re-search-forward
2012 ;; One paragraph
29043b61 2013 "\n\n=[a-zA-Z0-9]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
c07a80fd 2014 e 'toend)
2015 (put-text-property
2016 (match-beginning 1) (match-end 1)
2017 'face head-face))))
2018 (goto-char e)))
2019 (goto-char min)
2020 (while (re-search-forward
2021 "<<\\(\\([\"'`]\\)?\\)\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\1"
2022 max t)
2023 (setq tag (buffer-substring (match-beginning 3)
2024 (match-end 3)))
2025 (if cperl-pod-here-fontify
2026 (put-text-property (match-beginning 3) (match-end 3)
2027 'face font-lock-reference-face))
2028 (forward-line)
2029 (setq b (point))
2030 (and (re-search-forward (concat "^" tag "$") max 'toend)
2031 (progn
2032 (if cperl-pod-here-fontify
2033 (progn
2034 (put-text-property (match-beginning 0) (match-end 0)
2035 'face font-lock-reference-face)
9ea28adb 2036 (cperl-put-do-not-fontify b (match-end 0))
2037 ;;(put-text-property (max (point-min) (1- b))
2038 ;; (min (point-max)
2039 ;; (1+ (match-end 0)))
2040 ;; cperl-do-not-fontify t)
c07a80fd 2041 (put-text-property b (match-beginning 0)
29043b61 2042 'face here-face)))
c07a80fd 2043 (put-text-property b (match-beginning 0)
2044 'syntax-type 'here-doc)))))
2045 (if err (goto-char err)
2046 (message "Scan for pods and here-docs completed.")))
2047 (and (buffer-modified-p)
2048 (not modified)
2049 (set-buffer-modified-p nil)))))
2050
2051(defun cperl-backward-to-noncomment (lim)
2052 ;; Stops at lim or after non-whitespace that is not in comment
4633a7c4 2053 (let (stop p)
2054 (while (and (not stop) (> (point) (or lim 1)))
2055 (skip-chars-backward " \t\n\f" lim)
2056 (setq p (point))
2057 (beginning-of-line)
2058 (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
2059 ;; Else
2060 (cperl-to-comment-or-eol)
2061 (skip-chars-backward " \t")
2062 (if (< p (point)) (goto-char p))
2063 (setq stop t)))))
2064
c07a80fd 2065(defun cperl-after-expr-p (&optional lim chars test)
4633a7c4 2066 "Returns true if the position is good for start of expression.
2067TEST is the expression to evaluate at the found position. If absent,
2068CHARS is a string that contains good characters to have before us."
2069 (let (stop p)
2070 (save-excursion
2071 (while (and (not stop) (> (point) (or lim 1)))
2072 (skip-chars-backward " \t\n\f" lim)
2073 (setq p (point))
2074 (beginning-of-line)
2075 (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
2076 ;; Else: last iteration (What to do with labels?)
2077 (cperl-to-comment-or-eol)
2078 (skip-chars-backward " \t")
2079 (if (< p (point)) (goto-char p))
2080 (setq stop t)))
2081 (or (bobp)
2082 (progn
2083 (backward-char 1)
2084 (if test (eval test)
2085 (memq (following-char) (append (or chars "{};") nil))))))))
2086
2087(defun cperl-backward-to-start-of-continued-exp (lim)
c07a80fd 2088 (if (memq (preceding-char) (append ")]}\"'`" nil))
4633a7c4 2089 (forward-sexp -1))
2090 (beginning-of-line)
2091 (if (<= (point) lim)
2092 (goto-char (1+ lim)))
2093 (skip-chars-forward " \t"))
2094
4633a7c4 2095\f
2096(defvar innerloop-done nil)
2097(defvar last-depth nil)
2098
2099(defun cperl-indent-exp ()
2100 "Simple variant of indentation of continued-sexp.
2101Should be slow. Will not indent comment if it starts at `comment-indent'
2102or looks like continuation of the comment on the previous line."
2103 (interactive)
2104 (save-excursion
2105 (let ((tmp-end (progn (end-of-line) (point))) top done)
2106 (save-excursion
2107 (while (null done)
2108 (beginning-of-line)
2109 (setq top (point))
2110 (while (= (nth 0 (parse-partial-sexp (point) tmp-end
2111 -1)) -1)
2112 (setq top (point))) ; Get the outermost parenths in line
2113 (goto-char top)
2114 (while (< (point) tmp-end)
2115 (parse-partial-sexp (point) tmp-end nil t) ; To start-sexp or eol
2116 (or (eolp) (forward-sexp 1)))
2117 (if (> (point) tmp-end) (progn (end-of-line) (setq tmp-end (point)))
2118 (setq done t)))
2119 (goto-char tmp-end)
2120 (setq tmp-end (point-marker)))
2121 (cperl-indent-region (point) tmp-end))))
2122
2123(defun cperl-indent-region (start end)
2124 "Simple variant of indentation of region in CPerl mode.
2125Should be slow. Will not indent comment if it starts at `comment-indent'
2126or looks like continuation of the comment on the previous line.
2127Indents all the lines whose first character is between START and END
2128inclusive."
2129 (interactive "r")
2130 (save-excursion
2131 (let (st comm indent-info old-comm-indent new-comm-indent
2132 (pm 0) (imenu-scanning-message "Indenting... (%3d%%)"))
2133 (goto-char start)
2134 (setq old-comm-indent (and (cperl-to-comment-or-eol)
2135 (current-column))
2136 new-comm-indent old-comm-indent)
2137 (goto-char start)
2138 (or (bolp) (beginning-of-line 2))
2139 (or (fboundp 'imenu-progress-message)
2140 (message "Indenting... For feedback load `imenu'..."))
2141 (while (and (<= (point) end) (not (eobp))) ; bol to check start
2142 (and (fboundp 'imenu-progress-message)
2143 (imenu-progress-message
2144 pm (/ (* 100 (- (point) start)) (- end start -1))))
2145 (setq st (point)
2146 indent-info nil
2147 ) ; Believe indentation of the current
2148 (if (and (setq comm (looking-at "[ \t]*#"))
2149 (or (eq (current-indentation) (or old-comm-indent
2150 comment-column))
2151 (setq old-comm-indent nil)))
2152 (if (and old-comm-indent
2153 (= (current-indentation) old-comm-indent))
2154 (let ((comment-column new-comm-indent))
2155 (indent-for-comment)))
2156 (progn
2157 (cperl-indent-line 'indent-info)
2158 (or comm
2159 (progn
2160 (if (setq old-comm-indent (and (cperl-to-comment-or-eol)
2161 (current-column)))
2162 (progn (indent-for-comment)
2163 (skip-chars-backward " \t")
2164 (skip-chars-backward "#")
2165 (setq new-comm-indent (current-column))))))))
2166 (beginning-of-line 2))
2167 (if (fboundp 'imenu-progress-message)
2168 (imenu-progress-message pm 100)
2169 (message nil)))))
2170
2171(defun cperl-slash-is-regexp (&optional pos)
2172 (save-excursion
2173 (goto-char (if pos pos (1- (point))))
2174 (and
2175 (not (memq (get-text-property (point) 'face)
2176 '(font-lock-string-face font-lock-comment-face)))
c07a80fd 2177 (cperl-after-expr-p nil nil '
4633a7c4 2178 (or (looking-at "[^]a-zA-Z0-9_)}]")
2179 (eq (get-text-property (point) 'face)
2180 'font-lock-keyword-face))))))
2181
2182;; Stolen from lisp-mode with a lot of improvements
2183
2184(defun cperl-fill-paragraph (&optional justify iteration)
2185 "Like \\[fill-paragraph], but handle CPerl comments.
2186If any of the current line is a comment, fill the comment or the
2187block of it that point is in, preserving the comment's initial
2188indentation and initial hashes. Behaves usually outside of comment."
2189 (interactive "P")
2190 (let (
2191 ;; Non-nil if the current line contains a comment.
2192 has-comment
2193
2194 ;; If has-comment, the appropriate fill-prefix for the comment.
2195 comment-fill-prefix
2196 ;; Line that contains code and comment (or nil)
2197 start
2198 c spaces len dc (comment-column comment-column))
2199 ;; Figure out what kind of comment we are looking at.
2200 (save-excursion
2201 (beginning-of-line)
2202 (cond
2203
2204 ;; A line with nothing but a comment on it?
2205 ((looking-at "[ \t]*#[# \t]*")
2206 (setq has-comment t
2207 comment-fill-prefix (buffer-substring (match-beginning 0)
2208 (match-end 0))))
2209
2210 ;; A line with some code, followed by a comment? Remember that the
2211 ;; semi which starts the comment shouldn't be part of a string or
2212 ;; character.
2213 ((cperl-to-comment-or-eol)
2214 (setq has-comment t)
2215 (looking-at "#+[ \t]*")
2216 (setq start (point) c (current-column)
2217 comment-fill-prefix
2218 (concat (make-string (current-column) ?\ )
2219 (buffer-substring (match-beginning 0) (match-end 0)))
2220 spaces (progn (skip-chars-backward " \t")
2221 (buffer-substring (point) start))
2222 dc (- c (current-column)) len (- start (point))
2223 start (point-marker))
2224 (delete-char len)
2225 (insert (make-string dc ?-)))))
2226 (if (not has-comment)
2227 (fill-paragraph justify) ; Do the usual thing outside of comment
2228 ;; Narrow to include only the comment, and then fill the region.
2229 (save-restriction
2230 (narrow-to-region
2231 ;; Find the first line we should include in the region to fill.
2232 (if start (progn (beginning-of-line) (point))
2233 (save-excursion
2234 (while (and (zerop (forward-line -1))
c07a80fd 2235 (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
4633a7c4 2236 ;; We may have gone to far. Go forward again.
c07a80fd 2237 (or (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")
4633a7c4 2238 (forward-line 1))
2239 (point)))
2240 ;; Find the beginning of the first line past the region to fill.
2241 (save-excursion
2242 (while (progn (forward-line 1)
c07a80fd 2243 (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
4633a7c4 2244 (point)))
2245 ;; Remove existing hashes
2246 (goto-char (point-min))
2247 (while (progn (forward-line 1) (< (point) (point-max)))
2248 (skip-chars-forward " \t")
2249 (and (looking-at "#+")
2250 (delete-char (- (match-end 0) (match-beginning 0)))))
2251
2252 ;; Lines with only hashes on them can be paragraph boundaries.
2253 (let ((paragraph-start (concat paragraph-start "\\|^[ \t#]*$"))
2254 (paragraph-separate (concat paragraph-start "\\|^[ \t#]*$"))
2255 (fill-prefix comment-fill-prefix))
2256 (fill-paragraph justify)))
2257 (if (and start)
2258 (progn
2259 (goto-char start)
2260 (if (> dc 0)
2261 (progn (delete-char dc) (insert spaces)))
2262 (if (or (= (current-column) c) iteration) nil
2263 (setq comment-column c)
2264 (indent-for-comment)
2265 ;; Repeat once more, flagging as iteration
2266 (cperl-fill-paragraph justify t)))))))
2267
2268(defun cperl-do-auto-fill ()
2269 ;; Break out if the line is short enough
2270 (if (> (save-excursion
2271 (end-of-line)
2272 (current-column))
2273 fill-column)
2274 (let ((c (save-excursion (beginning-of-line)
2275 (cperl-to-comment-or-eol) (point)))
2276 (s (memq (following-char) '(?\ ?\t))) marker)
2277 (if (>= c (point)) nil
2278 (setq marker (point-marker))
2279 (cperl-fill-paragraph)
2280 (goto-char marker)
2281 ;; Is not enough, sometimes marker is a start of line
2282 (if (bolp) (progn (re-search-forward "#+[ \t]*")
2283 (goto-char (match-end 0))))
2284 ;; Following space could have gone:
2285 (if (or (not s) (memq (following-char) '(?\ ?\t))) nil
2286 (insert " ")
2287 (backward-char 1))
2288 ;; Previous space could have gone:
2289 (or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
2290
2291(defvar imenu-example--function-name-regexp-perl
c07a80fd 2292 "^\\([ \t]*\\(sub\\|package\\)[ \t\n]+\\([a-zA-Z_0-9:']+\\)[ \t]*\\|=head\\([12]\\)[ \t]+\\([^\n]+\\)$\\)")
4633a7c4 2293
9ea28adb 2294(defun cperl-imenu-addback (lst &optional isback name)
2295 ;; We suppose that the lst is a DAG, unless the first element only
2296 ;; loops back, and ISBACK is set. Thus this function cannot be
2297 ;; applied twice without ISBACK set.
2298 (cond ((not cperl-imenu-addback) lst)
2299 (t
2300 (or name
2301 (setq name "+++BACK+++"))
2302 (mapcar (function (lambda (elt)
2303 (if (and (listp elt) (listp (cdr elt)))
2304 (progn
2305 ;; In the other order it goes up
2306 ;; one level only ;-(
2307 (setcdr elt (cons (cons name lst)
2308 (cdr elt)))
2309 (cperl-imenu-addback (cdr elt) t name)
2310 ))))
2311 (if isback (cdr lst) lst))
2312 lst)))
2313
4633a7c4 2314(defun imenu-example--create-perl-index (&optional regexp)
2315 (require 'cl)
c07a80fd 2316 (let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
2317 (index-unsorted-alist '()) (i-s-f (default-value 'imenu-sort-function))
9ea28adb 2318 (index-meth-alist '()) meth
c07a80fd 2319 packages ends-ranges p
2320 (prev-pos 0) char fchar index index1 name (end-range 0) package)
4633a7c4 2321 (goto-char (point-min))
2322 (imenu-progress-message prev-pos 0)
2323 ;; Search for the function
9ea28adb 2324 (progn ;;save-match-data
4633a7c4 2325 (while (re-search-forward
2326 (or regexp imenu-example--function-name-regexp-perl)
2327 nil t)
2328 (imenu-progress-message prev-pos)
2329 ;;(backward-up-list 1)
c07a80fd 2330 (cond
2331 ((match-beginning 2) ; package or sub
2332 (save-excursion
2333 (goto-char (match-beginning 2))
2334 (setq fchar (following-char))
2335 )
9ea28adb 2336 (setq char (following-char) meth nil)
c07a80fd 2337 (setq p (point))
2338 (while (and ends-ranges (>= p (car ends-ranges)))
2339 ;; delete obsolete entries
2340 (setq ends-ranges (cdr ends-ranges) packages (cdr packages)))
2341 (setq package (or (car packages) "")
2342 end-range (or (car ends-ranges) 0))
2343 (if (eq fchar ?p)
9ea28adb 2344 (setq name (buffer-substring (match-beginning 3) (match-end 3))
2345 package (concat name "::")
2346 name (concat "package " name)
2347 end-range
2348 (save-excursion
2349 (parse-partial-sexp (point) (point-max) -1) (point))
2350 ends-ranges (cons end-range ends-ranges)
2351 packages (cons package packages)))
c07a80fd 2352 ;; )
2353 ;; Skip this function name if it is a prototype declaration.
2354 (if (and (eq fchar ?s) (eq char ?\;)) nil
9ea28adb 2355 (setq index (imenu-example--name-and-position))
c07a80fd 2356 (if (eq fchar ?p) nil
2357 (setq name (buffer-substring (match-beginning 3) (match-end 3)))
9ea28adb 2358 (cond ((string-match "[:']" name)
2359 (setq meth t))
2360 ((> p end-range) nil)
2361 (t
2362 (setq name (concat package name) meth t))))
c07a80fd 2363 (setcar index name)
2364 (if (eq fchar ?p)
2365 (push index index-pack-alist)
2366 (push index index-alist))
9ea28adb 2367 (if meth (push index index-meth-alist))
c07a80fd 2368 (push index index-unsorted-alist)))
2369 (t ; Pod section
2370 ;; (beginning-of-line)
2371 (setq index (imenu-example--name-and-position)
2372 name (buffer-substring (match-beginning 5) (match-end 5)))
2373 (if (eq (char-after (match-beginning 4)) ?2)
2374 (setq name (concat " " name)))
4633a7c4 2375 (setcar index name)
c07a80fd 2376 (setq index1 (cons (concat "=" name) (cdr index)))
2377 (push index index-pod-alist)
2378 (push index1 index-unsorted-alist)))))
4633a7c4 2379 (imenu-progress-message prev-pos 100)
c07a80fd 2380 (setq index-alist
2381 (if (default-value 'imenu-sort-function)
2382 (sort index-alist (default-value 'imenu-sort-function))
2383 (nreverse index-alist)))
2384 (and index-pod-alist
9ea28adb 2385 (push (cons "+POD headers+..."
c07a80fd 2386 (nreverse index-pod-alist))
2387 index-alist))
9ea28adb 2388 (and (or index-pack-alist index-meth-alist)
2389 (let ((lst index-pack-alist) hier-list pack elt group name)
2390 ;; Remove "package ", reverse and uniquify.
2391 (while lst
2392 (setq elt (car lst) lst (cdr lst) name (substring (car elt) 8))
2393 (if (assoc name hier-list) nil
2394 (setq hier-list (cons (cons name (cdr elt)) hier-list))))
2395 (setq lst index-meth-alist)
2396 (while lst
2397 (setq elt (car lst) lst (cdr lst))
2398 (string-match "\\(::\\|'\\)[_a-zA-Z0-9]+$" (car elt))
2399 (setq pack (substring (car elt) 0 (match-beginning 0)))
2400 (if (setq group (assoc pack hier-list))
2401 (if (listp (cdr group))
2402 ;; Have some functions already
2403 (setcdr group (cons (cons (substring
2404 (car elt)
2405 (+ 2 (match-beginning 0)))
2406 (cdr elt))
2407 (cdr group)))
2408 (setcdr group (list (cons (substring
2409 (car elt)
2410 (+ 2 (match-beginning 0)))
2411 (cdr elt)))))
2412 (setq hier-list
2413 (cons (cons pack (list (cons (substring
2414 (car elt)
2415 (+ 2 (match-beginning 0)))
2416 (cdr elt))))
2417 hier-list))))
2418 (push (cons "+Hierarchy+..."
2419 hier-list)
2420 index-alist)))
4633a7c4 2421 (and index-pack-alist
9ea28adb 2422 (push (cons "+Packages+..."
c07a80fd 2423 (nreverse index-pack-alist))
2424 index-alist))
2425 (and (or index-pack-alist index-pod-alist
2426 (default-value 'imenu-sort-function))
2427 index-unsorted-alist
9ea28adb 2428 (push (cons "+Unsorted List+..."
c07a80fd 2429 (nreverse index-unsorted-alist))
4633a7c4 2430 index-alist))
9ea28adb 2431 (cperl-imenu-addback index-alist)))
4633a7c4 2432
2433(defvar cperl-compilation-error-regexp-alist
2434 ;; This look like a paranoiac regexp: could anybody find a better one? (which WORK).
2435 '(("^[^\n]* \\(file\\|at\\) \\([^ \t\n]+\\) [^\n]*line \\([0-9]+\\)[\\., \n]"
2436 2 3))
2437 "Alist that specifies how to match errors in perl output.")
2438
2439(if (fboundp 'eval-after-load)
2440 (eval-after-load
2441 "mode-compile"
2442 '(setq perl-compilation-error-regexp-alist
2443 cperl-compilation-error-regexp-alist)))
2444
2445
2446(defvar cperl-faces-init nil)
2447
2448(defun cperl-windowed-init ()
2449 "Initialization under windowed version."
2450 (add-hook 'font-lock-mode-hook
2451 (function
2452 (lambda ()
2453 (if (or
2454 (eq major-mode 'perl-mode)
2455 (eq major-mode 'cperl-mode))
2456 (progn
c07a80fd 2457 (or cperl-faces-init (cperl-init-faces))))))))
2458
2459(defvar perl-font-lock-keywords-1 nil
2460 "Additional expressions to highlight in Perl mode. Minimal set.")
2461(defvar perl-font-lock-keywords nil
2462 "Additional expressions to highlight in Perl mode. Default set.")
2463(defvar perl-font-lock-keywords-2 nil
2464 "Additional expressions to highlight in Perl mode. Maximal set")
4633a7c4 2465
2466(defun cperl-init-faces ()
2467 (condition-case nil
2468 (progn
2469 (require 'font-lock)
c07a80fd 2470 (and (fboundp 'font-lock-fontify-anchored-keywords)
2471 (featurep 'font-lock-extra)
2472 (message "You have an obsolete package `font-lock-extra'. Install `choose-color'."))
2473 (let (t-font-lock-keywords t-font-lock-keywords-1 font-lock-anchored)
4633a7c4 2474 ;;(defvar cperl-font-lock-enhanced nil
2475 ;; "Set to be non-nil if font-lock allows active highlights.")
c07a80fd 2476 (if (fboundp 'font-lock-fontify-anchored-keywords)
2477 (setq font-lock-anchored t))
4633a7c4 2478 (setq
2479 t-font-lock-keywords
2480 (list
2481 (cons
2482 (concat
2483 "\\(^\\|[^$@%&\\]\\)\\<\\("
2484 (mapconcat
2485 'identity
2486 '("if" "until" "while" "elsif" "else" "unless" "for"
2487 "foreach" "continue" "exit" "die" "last" "goto" "next"
2488 "redo" "return" "local" "exec" "sub" "do" "dump" "use"
2489 "require" "package" "eval" "my" "BEGIN" "END")
2490 "\\|") ; Flow control
2491 "\\)\\>") 2) ; was "\\)[ \n\t;():,\|&]"
2492 ; In what follows we use `type' style
2493 ; for overwritable buildins
2494 (list
2495 (concat
2496 "\\(^\\|[^$@%&\\]\\)\\<\\("
2497 ;; "CORE" "__FILE__" "__LINE__" "abs" "accept" "alarm" "and" "atan2"
2498 ;; "bind" "binmode" "bless" "caller" "chdir" "chmod" "chown" "chr"
2499 ;; "chroot" "close" "closedir" "cmp" "connect" "continue" "cos"
2500 ;; "crypt" "dbmclose" "dbmopen" "die" "dump" "endgrent" "endhostent"
2501 ;; "endnetent" "endprotoent" "endpwent" "endservent" "eof" "eq" "exec"
2502 ;; "exit" "exp" "fcntl" "fileno" "flock" "fork" "formline" "ge" "getc"
2503 ;; "getgrent" "getgrgid" "getgrnam" "gethostbyaddr" "gethostbyname"
2504 ;; "gethostent" "getlogin" "getnetbyaddr" "getnetbyname" "getnetent"
2505 ;; "getpeername" "getpgrp" "getppid" "getpriority" "getprotobyname"
2506 ;; "getprotobynumber" "getprotoent" "getpwent" "getpwnam" "getpwuid"
2507 ;; "getservbyname" "getservbyport" "getservent" "getsockname"
2508 ;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int" "ioctl"
2509 ;; "join" "kill" "lc" "lcfirst" "le" "length" "link" "listen"
2510 ;; "localtime" "log" "lstat" "lt" "mkdir" "msgctl" "msgget" "msgrcv"
2511 ;; "msgsnd" "ne" "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
2512 ;; "quotemeta" "rand" "read" "readdir" "readline" "readlink"
2513 ;; "readpipe" "recv" "ref" "rename" "require" "reset" "reverse"
2514 ;; "rewinddir" "rindex" "rmdir" "seek" "seekdir" "select" "semctl"
2515 ;; "semget" "semop" "send" "setgrent" "sethostent" "setnetent"
2516 ;; "setpgrp" "setpriority" "setprotoent" "setpwent" "setservent"
2517 ;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite" "shutdown"
2518 ;; "sin" "sleep" "socket" "socketpair" "sprintf" "sqrt" "srand" "stat"
2519 ;; "substr" "symlink" "syscall" "sysread" "system" "syswrite" "tell"
2520 ;; "telldir" "time" "times" "truncate" "uc" "ucfirst" "umask" "unlink"
2521 ;; "unpack" "utime" "values" "vec" "wait" "waitpid" "wantarray" "warn"
2522 ;; "write" "x" "xor"
2523 "a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
2524 "b\\(in\\(d\\|mode\\)\\|less\\)\\|"
2525 "c\\(h\\(r\\(\\|oot\\)\\|dir\\|mod\\|own\\)\\|aller\\|rypt\\|"
2526 "lose\\(\\|dir\\)\\|mp\\|o\\(s\\|n\\(tinue\\|nect\\)\\)\\)\\|"
2527 "CORE\\|d\\(ie\\|bm\\(close\\|open\\)\\|ump\\)\\|"
2528 "e\\(x\\(p\\|it\\|ec\\)\\|q\\|nd\\(p\\(rotoent\\|went\\)\\|"
2529 "hostent\\|servent\\|netent\\|grent\\)\\|of\\)\\|"
2530 "f\\(ileno\\|cntl\\|lock\\|or\\(k\\|mline\\)\\)\\|"
2531 "g\\(t\\|lob\\|mtime\\|e\\(\\|t\\(p\\(pid\\|r\\(iority\\|"
2532 "oto\\(byn\\(ame\\|umber\\)\\|ent\\)\\)\\|eername\\|w"
2533 "\\(uid\\|ent\\|nam\\)\\|grp\\)\\|host\\(by\\(addr\\|name\\)\\|"
2534 "ent\\)\\|s\\(erv\\(by\\(port\\|name\\)\\|ent\\)\\|"
2535 "ock\\(name\\|opt\\)\\)\\|c\\|login\\|net\\(by\\(addr\\|name\\)\\|"
2536 "ent\\)\\|gr\\(ent\\|nam\\|gid\\)\\)\\)\\)\\|"
2537 "hex\\|i\\(n\\(t\\|dex\\)\\|octl\\)\\|join\\|kill\\|"
2538 "l\\(i\\(sten\\|nk\\)\\|stat\\|c\\(\\|first\\)\\|t\\|e"
2539 "\\(\\|ngth\\)\\|o\\(caltime\\|g\\)\\)\\|m\\(sg\\(rcv\\|snd\\|"
2540 "ctl\\|get\\)\\|kdir\\)\\|n\\(e\\|ot\\)\\|o\\(pen\\(\\|dir\\)\\|"
2541 "r\\(\\|d\\)\\|ct\\)\\|p\\(ipe\\|ack\\)\\|quotemeta\\|"
2542 "r\\(index\\|and\\|mdir\\|e\\(quire\\|ad\\(pipe\\|\\|lin"
2543 "\\(k\\|e\\)\\|dir\\)\\|set\\|cv\\|verse\\|f\\|winddir\\|name"
2544 "\\)\\)\\|s\\(printf\\|qrt\\|rand\\|tat\\|ubstr\\|e\\(t\\(p\\(r"
2545 "\\(iority\\|otoent\\)\\|went\\|grp\\)\\|hostent\\|s\\(ervent\\|"
2546 "ockopt\\)\\|netent\\|grent\\)\\|ek\\(\\|dir\\)\\|lect\\|"
2547 "m\\(ctl\\|op\\|get\\)\\|nd\\)\\|h\\(utdown\\|m\\(read\\|ctl\\|"
2548 "write\\|get\\)\\)\\|y\\(s\\(read\\|call\\|tem\\|write\\)\\|"
2549 "mlink\\)\\|in\\|leep\\|ocket\\(pair\\|\\)\\)\\|t\\(runcate\\|"
2550 "ell\\(\\|dir\\)\\|ime\\(\\|s\\)\\)\\|u\\(c\\(\\|first\\)\\|"
2551 "time\\|mask\\|n\\(pack\\|link\\)\\)\\|v\\(alues\\|ec\\)\\|"
2552 "w\\(a\\(rn\\|it\\(pid\\|\\)\\|ntarray\\)\\|rite\\)\\|"
2553 "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\)"
2554 "\\)\\>") 2 'font-lock-type-face)
2555 ;; In what follows we use `other' style
2556 ;; for nonoverwritable buildins
2557 ;; Somehow 's', 'm' are not autogenerated???
2558 (list
2559 (concat
2560 "\\(^\\|[^$@%&\\]\\)\\<\\("
2561 ;; "AUTOLOAD" "BEGIN" "DESTROY" "END" "__END__" "chomp" "chop"
2562 ;; "defined" "delete" "do" "each" "else" "elsif" "eval" "exists" "for"
2563 ;; "foreach" "format" "goto" "grep" "if" "keys" "last" "local" "map"
2564 ;; "my" "next" "no" "package" "pop" "pos" "print" "printf" "push" "q"
2565 ;; "qq" "qw" "qx" "redo" "return" "scalar" "shift" "sort" "splice"
2566 ;; "split" "study" "sub" "tie" "tr" "undef" "unless" "unshift" "untie"
2567 ;; "until" "use" "while" "y"
2568 "AUTOLOAD\\|BEGIN\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
2569 "o\\)\\|DESTROY\\|e\\(ach\\|val\\|xists\\|ls\\(e\\|if\\)\\)\\|"
2570 "END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|if\\|keys\\|"
2571 "l\\(ast\\|ocal\\)\\|m\\(ap\\|y\\)\\|n\\(ext\\|o\\)\\|"
2572 "p\\(ackage\\|rint\\(\\|f\\)\\|ush\\|o\\(p\\|s\\)\\)\\|"
2573 "q\\(\\|q\\|w\\|x\\)\\|re\\(turn\\|do\\)\\|s\\(pli\\(ce\\|t\\)\\|"
2574 "calar\\|tudy\\|ub\\|hift\\|ort\\)\\|t\\(r\\|ie\\)\\|"
2575 "u\\(se\\|n\\(shift\\|ti\\(l\\|e\\)\\|def\\|less\\)\\)\\|"
2576 "while\\|y\\|__\\(END\\|DATA\\)__" ;__DATA__ added manually
2577 "\\|[sm]" ; Added manually
2578 "\\)\\>") 2 'font-lock-other-type-face)
2579 ;; (mapconcat 'identity
2580 ;; '("#endif" "#else" "#ifdef" "#ifndef" "#if"
2581 ;; "#include" "#define" "#undef")
2582 ;; "\\|")
2583 '("-[rwxoRWXOezsfdlpSbctugkTBMAC]\\>\\([ \t]+_\\>\\)?" 0
2584 font-lock-function-name-face) ; Not very good, triggers at "[a-z]"
c07a80fd 2585 '("\\<sub[ \t]+\\([^ \t{;]+\\)[ \t]*[{\n]" 1
4633a7c4 2586 font-lock-function-name-face)
c07a80fd 2587 '("\\<\\(package\\|require\\|use\\|import\\|no\\|bootstrap\\)[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t;]" ; require A if B;
4633a7c4 2588 2 font-lock-function-name-face)
c07a80fd 2589 (cond ((featurep 'font-lock-extra)
29043b61 2590 '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
c07a80fd 2591 (2 font-lock-string-face t)
2592 (0 '(restart 2 t)))) ; To highlight $a{bc}{ef}
2593 (font-lock-anchored
29043b61 2594 '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
c07a80fd 2595 (2 font-lock-string-face t)
29043b61 2596 ("\\=[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
c07a80fd 2597 nil nil
2598 (1 font-lock-string-face t))))
29043b61 2599 (t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
c07a80fd 2600 2 font-lock-string-face t)))
29043b61 2601 '("[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
4633a7c4 2602 font-lock-string-face t)
2603 '("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
2604 font-lock-reference-face) ; labels
2605 '("\\<\\(continue\\|next\\|last\\|redo\\|goto\\)\\>[ \t]+\\([a-zA-Z0-9_:]+\\)" ; labels as targets
2606 2 font-lock-reference-face)
c07a80fd 2607 (cond ((featurep 'font-lock-extra)
2608 '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
2609 (3 font-lock-variable-name-face)
2610 (4 '(another 4 nil
2611 ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
2612 (1 font-lock-variable-name-face)
2613 (2 '(restart 2 nil) nil t)))
2614 nil t))) ; local variables, multiple
2615 (font-lock-anchored
2616 '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
2617 (3 font-lock-variable-name-face)
2618 ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)"
2619 nil nil
2620 (1 font-lock-variable-name-face))))
2621 (t '("^[ \t]*\\(my\\|local\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
2622 3 font-lock-variable-name-face)))
4633a7c4 2623 '("\\<for\\(each\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
2624 2 font-lock-variable-name-face)))
c07a80fd 2625 (setq
2626 t-font-lock-keywords-1
2627 (and (fboundp 'turn-on-font-lock) ; Check for newer font-lock
2628 (not (cperl-xemacs-p)) ; not yet as of XEmacs 19.12
2629 '(("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
2630 1
2631 (if (= (- (match-end 2) (match-beginning 2)) 1)
2632 (if (eq (char-after (match-beginning 3)) ?{)
2633 font-lock-other-emphasized-face
2634 font-lock-emphasized-face) ; arrays and hashes
2635 font-lock-variable-name-face) ; Just to put something
2636 t)
2637 ("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
2638 (if (eq (char-after (match-beginning 2)) ?%)
2639 font-lock-other-emphasized-face
2640 font-lock-emphasized-face)
2641 t) ; arrays and hashes
2642 ;;("\\([smy]\\|tr\\)\\([^a-z_A-Z0-9]\\)\\(\\([^\n\\]*||\\)\\)\\2")
4633a7c4 2643 ;;; Too much noise from \s* @s[ and friends
c07a80fd 2644 ;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
2645 ;;(3 font-lock-function-name-face t t)
2646 ;;(4
2647 ;; (if (cperl-slash-is-regexp)
2648 ;; font-lock-function-name-face 'default) nil t))
2649 )))
2650 (setq perl-font-lock-keywords-1 t-font-lock-keywords
2651 perl-font-lock-keywords perl-font-lock-keywords-1
2652 perl-font-lock-keywords-2 (append
2653 t-font-lock-keywords
2654 t-font-lock-keywords-1)))
4633a7c4 2655 (if (fboundp 'ps-print-buffer) (cperl-ps-print-init))
c07a80fd 2656 (if (or (featurep 'choose-color) (featurep 'font-lock-extra))
4633a7c4 2657 (font-lock-require-faces
2658 (list
2659 ;; Color-light Color-dark Gray-light Gray-dark Mono
2660 (list 'font-lock-comment-face
2661 ["Firebrick" "OrangeRed" "DimGray" "Gray80"]
2662 nil
2663 [nil nil t t t]
2664 [nil nil t t t]
2665 nil)
2666 (list 'font-lock-string-face
2667 ["RosyBrown" "LightSalmon" "Gray50" "LightGray"]
2668 nil
2669 nil
2670 [nil nil t t t]
2671 nil)
2672 (list 'font-lock-keyword-face
2673 ["Purple" "LightSteelBlue" "DimGray" "Gray90"]
2674 nil
2675 [nil nil t t t]
2676 nil
2677 nil)
2678 (list 'font-lock-function-name-face
2679 (vector
2680 "Blue" "LightSkyBlue" "Gray50" "LightGray"
2681 (cdr (assq 'background-color ; if mono
2682 (frame-parameters))))
2683 (vector
2684 nil nil nil nil
2685 (cdr (assq 'foreground-color ; if mono
2686 (frame-parameters))))
2687 [nil nil t t t]
2688 nil
2689 nil)
2690 (list 'font-lock-variable-name-face
2691 ["DarkGoldenrod" "LightGoldenrod" "DimGray" "Gray90"]
2692 nil
2693 [nil nil t t t]
2694 [nil nil t t t]
2695 nil)
2696 (list 'font-lock-type-face
2697 ["DarkOliveGreen" "PaleGreen" "DimGray" "Gray80"]
2698 nil
2699 [nil nil t t t]
2700 nil
2701 [nil nil t t t]
2702 )
2703 (list 'font-lock-reference-face
2704 ["CadetBlue" "Aquamarine" "Gray50" "LightGray"]
2705 nil
2706 [nil nil t t t]
2707 nil
2708 [nil nil t t t]
2709 )
2710 (list 'font-lock-other-type-face
2711 ["chartreuse3" ("orchid1" "orange")
2712 nil "Gray80"]
2713 [nil nil "gray90"]
2714 [nil nil nil t t]
2715 [nil nil t t]
2716 [nil nil t t t]
2717 )
2718 (list 'font-lock-emphasized-face
2719 ["blue" "yellow" nil "Gray80"]
2720 ["lightyellow2" ("navy" "os2blue" "darkgreen")
2721 "gray90"]
2722 t
2723 nil
2724 nil)
2725 (list 'font-lock-other-emphasized-face
2726 ["red" "red" nil "Gray80"]
2727 ["lightyellow2" ("navy" "os2blue" "darkgreen")
2728 "gray90"]
2729 t
2730 t
2731 nil)))
2732 (defvar cperl-guessed-background nil
2733 "Display characteristics as guessed by cperl.")
2734 (or (fboundp 'x-color-defined-p)
2735 (defalias 'x-color-defined-p
2736 (cond ((fboundp 'color-defined-p) 'color-defined-p)
2737 ;; XEmacs >= 19.12
2738 ((fboundp 'valid-color-name-p) 'valid-color-name-p)
2739 ;; XEmacs 19.11
2740 (t 'x-valid-color-name-p))))
2741 (defvar font-lock-reference-face 'font-lock-reference-face)
2742 (defvar font-lock-variable-name-face 'font-lock-variable-name-face)
2743 (or (boundp 'font-lock-type-face)
2744 (defconst font-lock-type-face
2745 'font-lock-type-face
2746 "Face to use for data types.")
2747 )
2748 (or (boundp 'font-lock-other-type-face)
2749 (defconst font-lock-other-type-face
2750 'font-lock-other-type-face
2751 "Face to use for data types from another group.")
2752 )
2753 (if (not (cperl-xemacs-p)) nil
2754 (or (boundp 'font-lock-comment-face)
2755 (defconst font-lock-comment-face
2756 'font-lock-comment-face
2757 "Face to use for comments.")
2758 )
2759 (or (boundp 'font-lock-keyword-face)
2760 (defconst font-lock-keyword-face
2761 'font-lock-keyword-face
2762 "Face to use for keywords.")
2763 )
2764 (or (boundp 'font-lock-function-name-face)
2765 (defconst font-lock-function-name-face
2766 'font-lock-function-name-face
2767 "Face to use for function names.")
2768 )
2769 )
2770 ;;(if (featurep 'font-lock)
2771 (if (face-equal font-lock-type-face font-lock-comment-face)
2772 (defconst font-lock-type-face
2773 'font-lock-type-face
2774 "Face to use for basic data types.")
2775 )
2776;;; (if (fboundp 'eval-after-load)
2777;;; (eval-after-load "font-lock"
2778;;; '(if (face-equal font-lock-type-face
2779;;; font-lock-comment-face)
2780;;; (defconst font-lock-type-face
2781;;; 'font-lock-type-face
2782;;; "Face to use for basic data types.")
2783;;; ))) ; This does not work :-( Why?!
2784;;; ; Workaround: added to font-lock-m-h
2785;;; )
2786 (or (boundp 'font-lock-other-emphasized-face)
2787 (defconst font-lock-other-emphasized-face
2788 'font-lock-other-emphasized-face
2789 "Face to use for another type of emphasizing.")
2790 )
2791 (or (boundp 'font-lock-emphasized-face)
2792 (defconst font-lock-emphasized-face
2793 'font-lock-emphasized-face
2794 "Face to use for emphasizing.")
2795 )
2796 ;; Here we try to guess background
2797 (let ((background
2798 (if (boundp 'font-lock-background-mode)
2799 font-lock-background-mode
2800 'light))
2801 (face-list (and (fboundp 'face-list) (face-list)))
2802 is-face)
2803 (fset 'is-face
2804 (cond ((fboundp 'find-face)
2805 (symbol-function 'find-face))
2806 (face-list
2807 (function (lambda (face) (member face face-list))))
2808 (t
2809 (function (lambda (face) (boundp face))))))
2810 (defvar cperl-guessed-background
2811 (if (and (boundp 'font-lock-display-type)
2812 (eq font-lock-display-type 'grayscale))
2813 'gray
2814 background)
2815 "Background as guessed by CPerl mode")
2816 (if (is-face 'font-lock-type-face) nil
2817 (copy-face 'default 'font-lock-type-face)
2818 (cond
2819 ((eq background 'light)
2820 (set-face-foreground 'font-lock-type-face
2821 (if (x-color-defined-p "seagreen")
2822 "seagreen"
2823 "sea green")))
2824 ((eq background 'dark)
2825 (set-face-foreground 'font-lock-type-face
2826 (if (x-color-defined-p "os2pink")
2827 "os2pink"
2828 "pink")))
2829 (t
2830 (set-face-background 'font-lock-type-face "gray90"))))
2831 (if (is-face 'font-lock-other-type-face)
2832 nil
2833 (copy-face 'font-lock-type-face 'font-lock-other-type-face)
2834 (cond
2835 ((eq background 'light)
2836 (set-face-foreground 'font-lock-other-type-face
2837 (if (x-color-defined-p "chartreuse3")
2838 "chartreuse3"
2839 "chartreuse")))
2840 ((eq background 'dark)
2841 (set-face-foreground 'font-lock-other-type-face
2842 (if (x-color-defined-p "orchid1")
2843 "orchid1"
2844 "orange")))))
2845 (if (is-face 'font-lock-other-emphasized-face) nil
2846 (copy-face 'bold-italic 'font-lock-other-emphasized-face)
2847 (cond
2848 ((eq background 'light)
2849 (set-face-background 'font-lock-other-emphasized-face
2850 (if (x-color-defined-p "lightyellow2")
2851 "lightyellow2"
2852 (if (x-color-defined-p "lightyellow")
2853 "lightyellow"
2854 "light yellow"))))
2855 ((eq background 'dark)
2856 (set-face-background 'font-lock-other-emphasized-face
2857 (if (x-color-defined-p "navy")
2858 "navy"
2859 (if (x-color-defined-p "darkgreen")
2860 "darkgreen"
2861 "dark green"))))
2862 (t (set-face-background 'font-lock-other-emphasized-face "gray90"))))
2863 (if (is-face 'font-lock-emphasized-face) nil
2864 (copy-face 'bold 'font-lock-emphasized-face)
2865 (cond
2866 ((eq background 'light)
2867 (set-face-background 'font-lock-emphasized-face
2868 (if (x-color-defined-p "lightyellow2")
2869 "lightyellow2"
2870 "lightyellow")))
2871 ((eq background 'dark)
2872 (set-face-background 'font-lock-emphasized-face
2873 (if (x-color-defined-p "navy")
2874 "navy"
2875 (if (x-color-defined-p "darkgreen")
2876 "darkgreen"
2877 "dark green"))))
2878 (t (set-face-background 'font-lock-emphasized-face "gray90"))))
2879 (if (is-face 'font-lock-variable-name-face) nil
2880 (copy-face 'italic 'font-lock-variable-name-face))
2881 (if (is-face 'font-lock-reference-face) nil
c07a80fd 2882 (copy-face 'italic 'font-lock-reference-face))))
2883 (setq cperl-faces-init t))
4633a7c4 2884 (error nil)))
2885
2886
2887(defun cperl-ps-print-init ()
2888 "Initialization of `ps-print' components for faces used in CPerl."
2889 ;; Guard against old versions
2890 (defvar ps-underlined-faces nil)
2891 (defvar ps-bold-faces nil)
2892 (defvar ps-italic-faces nil)
2893 (setq ps-bold-faces
2894 (append '(font-lock-emphasized-face
2895 font-lock-keyword-face
2896 font-lock-variable-name-face
2897 font-lock-reference-face
2898 font-lock-other-emphasized-face)
2899 ps-bold-faces))
2900 (setq ps-italic-faces
2901 (append '(font-lock-other-type-face
2902 font-lock-reference-face
2903 font-lock-other-emphasized-face)
2904 ps-italic-faces))
2905 (setq ps-underlined-faces
2906 (append '(font-lock-emphasized-face
2907 font-lock-other-emphasized-face
2908 font-lock-other-type-face font-lock-type-face)
2909 ps-underlined-faces))
2910 (cons 'font-lock-type-face ps-underlined-faces))
2911
2912
2913(if (cperl-enable-font-lock) (cperl-windowed-init))
2914
2915(defun cperl-set-style (style)
2916 "Set CPerl-mode variables to use one of several different indentation styles.
2917The arguments are a string representing the desired style.
2918Available styles are GNU, K&R, BSD and Whitesmith."
2919 (interactive
2920 (let ((list (mapcar (function (lambda (elt) (list (car elt))))
2921 c-style-alist)))
2922 (list (completing-read "Enter style: " list nil 'insist))))
2923 (let ((style (cdr (assoc style c-style-alist))) setting str sym)
2924 (while style
2925 (setq setting (car style) style (cdr style))
2926 (setq str (symbol-name (car setting)))
2927 (and (string-match "^c-" str)
2928 (setq str (concat "cperl-" (substring str 2)))
2929 (setq sym (intern-soft str))
2930 (boundp sym)
2931 (set sym (cdr setting))))))
2932
2933(defun cperl-check-syntax ()
2934 (interactive)
2935 (require 'mode-compile)
2936 (let ((perl-dbg-flags "-wc"))
2937 (mode-compile)))
2938
2939(defun cperl-info-buffer ()
2940 ;; Returns buffer with documentation. Creats if missing
2941 (let ((info (get-buffer "*info-perl*")))
2942 (if info info
2943 (save-window-excursion
2944 ;; Get Info running
2945 (require 'info)
2946 (save-window-excursion
2947 (info))
2948 (Info-find-node "perl5" "perlfunc")
2949 (set-buffer "*info*")
2950 (rename-buffer "*info-perl*")
2951 (current-buffer)))))
2952
2953(defun cperl-word-at-point (&optional p)
2954 ;; Returns the word at point or at P.
2955 (save-excursion
2956 (if p (goto-char p))
2957 (require 'etags)
2958 (funcall (or (and (boundp 'find-tag-default-function)
2959 find-tag-default-function)
2960 (get major-mode 'find-tag-default-function)
2961 ;; XEmacs 19.12 has `find-tag-default-hook'; it is
2962 ;; automatically used within `find-tag-default':
2963 'find-tag-default))))
2964
2965(defun cperl-info-on-command (command)
2966 "Shows documentation for Perl command in other window."
2967 (interactive
2968 (let* ((default (cperl-word-at-point))
2969 (read (read-string
2970 (format "Find doc for Perl function (default %s): "
2971 default))))
2972 (list (if (equal read "")
2973 default
2974 read))))
2975
2976 (let ((buffer (current-buffer))
c07a80fd 2977 (cmd-desc (concat "^" (regexp-quote command) "[^a-zA-Z_0-9]")) ; "tr///"
4633a7c4 2978 pos)
2979 (if (string-match "^-[a-zA-Z]$" command)
2980 (setq cmd-desc "^-X[ \t\n]"))
2981 (set-buffer (cperl-info-buffer))
2982 (beginning-of-buffer)
2983 (re-search-forward "^-X[ \t\n]")
2984 (forward-line -1)
2985 (if (re-search-forward cmd-desc nil t)
2986 (progn
2987 (setq pos (progn (beginning-of-line)
2988 (point)))
2989 (pop-to-buffer (cperl-info-buffer))
2990 (set-window-start (selected-window) pos))
2991 (message "No entry for %s found." command))
c07a80fd 2992 (pop-to-buffer buffer)))
4633a7c4 2993
2994(defun cperl-info-on-current-command ()
2995 "Shows documentation for Perl command at point in other window."
2996 (interactive)
2997 (cperl-info-on-command (cperl-word-at-point)))
2998
2999(defun cperl-imenu-info-imenu-search ()
3000 (if (looking-at "^-X[ \t\n]") nil
3001 (re-search-backward
3002 "^\n\\([-a-zA-Z]+\\)[ \t\n]")
3003 (forward-line 1)))
3004
3005(defun cperl-imenu-info-imenu-name ()
3006 (buffer-substring
3007 (match-beginning 1) (match-end 1)))
3008
3009(defun cperl-imenu-on-info ()
3010 (interactive)
3011 (let* ((buffer (current-buffer))
3012 imenu-create-index-function
3013 imenu-prev-index-position-function
3014 imenu-extract-index-name-function
3015 (index-item (save-restriction
3016 (save-window-excursion
3017 (set-buffer (cperl-info-buffer))
3018 (setq imenu-create-index-function
3019 'imenu-default-create-index-function
3020 imenu-prev-index-position-function
3021 'cperl-imenu-info-imenu-search
3022 imenu-extract-index-name-function
3023 'cperl-imenu-info-imenu-name)
3024 (imenu-choose-buffer-index)))))
3025 (and index-item
3026 (progn
3027 (push-mark)
3028 (pop-to-buffer "*info-perl*")
3029 (cond
3030 ((markerp (cdr index-item))
3031 (goto-char (marker-position (cdr index-item))))
3032 (t
3033 (goto-char (cdr index-item))))
3034 (set-window-start (selected-window) (point))
3035 (pop-to-buffer buffer)))))
3036
3037(defun cperl-lineup (beg end &optional step minshift)
3038 "Lineup construction in a region.
3039Beginning of region should be at the start of a construction.
3040All first occurences of this construction in the lines that are
3041partially contained in the region are lined up at the same column.
3042
3043MINSHIFT is the minimal amount of space to insert before the construction.
3044STEP is the tabwidth to position constructions.
3045If STEP is `nil', `cperl-lineup-step' will be used
3046\(or `cperl-indent-level', if `cperl-lineup-step' is `nil').
3047Will not move the position at the start to the left."
3048 (interactive "r")
3049 (let (search col tcol seen b e)
3050 (save-excursion
3051 (goto-char end)
3052 (end-of-line)
3053 (setq end (point-marker))
3054 (goto-char beg)
3055 (skip-chars-forward " \t\f")
3056 (setq beg (point-marker))
3057 (indent-region beg end nil)
3058 (goto-char beg)
3059 (setq col (current-column))
3060 (if (looking-at "\\sw")
3061 (if (looking-at "\\<\\sw+\\>")
3062 (setq search
3063 (concat "\\<"
3064 (regexp-quote
3065 (buffer-substring (match-beginning 0)
3066 (match-end 0))) "\\>"))
3067 (error "Cannot line up in a middle of the word"))
3068 (if (looking-at "$")
3069 (error "Cannot line up end of line"))
3070 (setq search (regexp-quote (char-to-string (following-char)))))
3071 (setq step (or step cperl-lineup-step cperl-indent-level))
3072 (or minshift (setq minshift 1))
3073 (while (progn
3074 (beginning-of-line 2)
3075 (and (< (point) end)
3076 (re-search-forward search end t)
3077 (goto-char (match-beginning 0))))
3078 (setq tcol (current-column) seen t)
3079 (if (> tcol col) (setq col tcol)))
3080 (or seen
3081 (error "The construction to line up occured only once"))
3082 (goto-char beg)
3083 (setq col (+ col minshift))
3084 (if (/= (% col step) 0) (setq step (* step (1+ (/ col step)))))
3085 (while
3086 (progn
3087 (setq e (point))
3088 (skip-chars-backward " \t")
3089 (delete-region (point) e)
3090 (indent-to-column col); (make-string (- col (current-column)) ?\ ))
3091 (beginning-of-line 2)
3092 (and (< (point) end)
3093 (re-search-forward search end t)
3094 (goto-char (match-beginning 0)))))))) ; No body
3095
3096(defun cperl-etags (&optional add all files)
3097 "Run etags with appropriate options for Perl files.
3098If optional argument ALL is `recursive', will process Perl files
3099in subdirectories too."
3100 (interactive)
3101 (let ((cmd "etags")
3102 (args '("-l" "none" "-r" "/\\<\\(package\\|sub\\)[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)[ \\t]*\\([{#]\\|$\\)\\)/\\4/"))
3103 res)
3104 (if add (setq args (cons "-a" args)))
3105 (or files (setq files (list buffer-file-name)))
3106 (cond
3107 ((eq all 'recursive)
3108 ;;(error "Not implemented: recursive")
3109 (setq args (append (list "-e"
3110 "sub wanted {push @ARGV, $File::Find::name if /\\.[Pp][Llm]$/}
3111 use File::Find;
3112 find(\\&wanted, '.');
3113 exec @ARGV;"
3114 cmd) args)
3115 cmd "perl"))
3116 (all
3117 ;;(error "Not implemented: all")
3118 (setq args (append (list "-e"
3119 "push @ARGV, <*.PL *.pl *.pm>;
3120 exec @ARGV;"
3121 cmd) args)
3122 cmd "perl"))
3123 (t
3124 (setq args (append args files))))
3125 (setq res (apply 'call-process cmd nil nil nil args))
3126 (or (eq res 0)
3127 (message "etags returned \"%s\"" res))))
9ea28adb 3128
3129(defun cperl-toggle-auto-newline ()
3130 "Toggle the state of `cperl-auto-newline'."
3131 (interactive)
3132 (setq cperl-auto-newline (not cperl-auto-newline))
3133 (message "Newlines will %sbe auto-inserted now."
3134 (if cperl-auto-newline "" "not ")))
3135
3136(defun cperl-toggle-abbrev ()
3137 "Toggle the state of automatic keyword expansion in CPerl mode."
3138 (interactive)
3139 (abbrev-mode (if abbrev-mode 0 1))
3140 (message "Perl control structure will %sbe auto-inserted now."
3141 (if abbrev-mode "" "not ")))
3142
3143
3144(defun cperl-toggle-electric ()
3145 "Toggle the state of parentheses doubling in CPerl mode."
3146 (interactive)
3147 (setq cperl-electric-parens (if (cperl-val 'cperl-electric-parens) 'null t))
3148 (message "Parentheses will %sbe auto-doubled now."
3149 (if (cperl-val 'cperl-electric-parens) "" "not ")))
3150
3151;;;; Tags file creation.
3152
3153(defvar cperl-tmp-buffer " *cperl-tmp*")
3154
3155(defun cperl-setup-tmp-buf ()
3156 (set-buffer (get-buffer-create cperl-tmp-buffer))
3157 (set-syntax-table cperl-mode-syntax-table)
3158 (buffer-disable-undo)
3159 (auto-fill-mode 0))
3160
3161(defun cperl-xsub-scan ()
3162 (require 'cl)
3163 (let ((index-alist '())
3164 (prev-pos 0) index index1 name package prefix)
3165 (goto-char (point-min))
3166 (imenu-progress-message prev-pos 0)
3167 ;; Search for the function
3168 (progn ;;save-match-data
3169 (while (re-search-forward
3170 "^\\([ \t]*MODULE\\>[^\n]*\\<PACKAGE[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9:]*\\)\\>\\|\\([a-zA-Z_][a-zA-Z_0-9]*\\)(\\|[ \t]*BOOT:\\)"
3171 nil t)
3172 (imenu-progress-message prev-pos)
3173 (cond
3174 ((match-beginning 2) ; SECTION
3175 (setq package (buffer-substring (match-beginning 2) (match-end 2)))
3176 (goto-char (match-beginning 0))
3177 (skip-chars-forward " \t")
3178 (forward-char 1)
3179 (if (looking-at "[^\n]*\\<PREFIX[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\>")
3180 (setq prefix (buffer-substring (match-beginning 1) (match-end 1)))
3181 (setq prefix nil)))
3182 ((not package) nil) ; C language section
3183 ((match-beginning 3) ; XSUB
3184 (goto-char (1+ (match-beginning 3)))
3185 (setq index (imenu-example--name-and-position))
3186 (setq name (buffer-substring (match-beginning 3) (match-end 3)))
3187 (if (and prefix (string-match (concat "^" prefix) name))
3188 (setq name (substring name (length prefix))))
3189 (setq meth nil)
3190 (cond ((string-match "::" name) nil)
3191 (t
3192 (setq index1 (cons (concat package "::" name) (cdr index)))
3193 (push index1 index-alist)))
3194 (setcar index name)
3195 (push index index-alist))
3196 (t ; BOOT: section
3197 ;; (beginning-of-line)
3198 (setq index (imenu-example--name-and-position))
3199 (setcar index (concat package "::BOOT:"))
3200 (push index index-alist)))))
3201 (imenu-progress-message prev-pos 100)
3202 ;;(setq index-alist
3203 ;; (if (default-value 'imenu-sort-function)
3204 ;; (sort index-alist (default-value 'imenu-sort-function))
3205 ;; (nreverse index-alist)))
3206 index-alist))
3207
3208(defun cperl-find-tags (file xs)
3209 (let (ind (b (get-buffer cperl-tmp-buffer)) lst elt pos ret)
3210 (save-excursion
3211 (if b (set-buffer b)
3212 (cperl-setup-tmp-buf))
3213 (erase-buffer)
3214 (setq file (car (insert-file-contents file)))
3215 (message "Scanning file %s..." file)
3216 (if xs
3217 (setq lst (cperl-xsub-scan))
3218 (setq ind (imenu-example--create-perl-index))
3219 (setq lst (cdr (assoc "+Unsorted List+..." ind))))
3220 (setq lst
3221 (mapcar
3222 (function
3223 (lambda (elt)
3224 (cond ((string-match "^[_a-zA-Z]" (car elt))
3225 (goto-char (cdr elt))
3226 (list (car elt)
3227 (point) (count-lines 1 (point))
3228 (buffer-substring (progn
3229 (skip-chars-forward
3230 ":_a-zA-Z0-9")
3231 (or (eolp) (forward-char 1))
3232 (point))
3233 (progn
3234 (beginning-of-line)
3235 (point))))))))
3236 lst))
3237 (erase-buffer)
3238 (while lst
3239 (setq elt (car lst) lst (cdr lst))
3240 (if elt
3241 (progn
3242 (insert (elt elt 3)
3243 127
3244 (if (string-match "^package " (car elt))
3245 (substring (car elt) 8)
3246 (car elt) )
3247 1
3248 (number-to-string (elt elt 1))
3249 ","
3250 (number-to-string (elt elt 2))
3251 "\n")
3252 (if (and (string-match "^[_a-zA-Z]+::" (car elt))
3253 (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
3254 (elt elt 3)))
3255 ;; Need to insert the name without package as well
3256 (setq lst (cons (cons (substring (elt elt 3)
3257 (match-beginning 1)
3258 (match-end 1))
3259 (cdr elt))
3260 lst))))))
3261 (setq pos (point))
3262 (goto-char 1)
3263 (insert "\f\n" file "," (number-to-string (1- pos)) "\n")
3264 (setq ret (buffer-substring 1 (point-max)))
3265 (erase-buffer)
3266 (message "Scanning file %s finished" file)
3267 ret)))
3268
3269(defun cperl-write-tags (&optional file erase recurse dir inbuffer)
3270 ;; If INBUFFER, do not select buffer, and do not save
3271 ;; If ERASE is `ignore', do not erase, and do not try to delete old info.
3272 (if file nil
3273 (setq file (if dir default-directory (buffer-file-name)))
3274 (if (and (not dir) (buffer-modified-p)) (error "Save buffer first!")))
3275 (let ((tags-file-name "TAGS")
3276 (case-fold-search (eq system-type 'emx))
3277 xs)
3278 (save-excursion
3279 (cond (inbuffer nil) ; Already there
3280 ((file-exists-p tags-file-name)
3281 (visit-tags-table-buffer tags-file-name))
3282 (t (set-buffer (find-file-noselect tags-file-name))))
3283 (cond
3284 (dir
3285 (cond ((eq erase 'ignore))
3286 (erase
3287 (erase-buffer)
3288 (setq erase 'ignore)))
3289 (let ((files
3290 (directory-files file t (if recurse nil "\\.[Pp][Llm]$") t)))
3291 (mapcar (function (lambda (file)
3292 (cond
3293 ((string-match "/\\.\\.?$" file) nil)
3294 ((not (file-directory-p file))
3295 (if (string-match "\\.\\([Pp][Llm]\\|xs\\)$" file)
3296 (cperl-write-tags file erase recurse nil t)))
3297 ((not recurse) nil)
3298 (t (cperl-write-tags file erase recurse t t)))))
3299 files))
3300 )
3301 (t
3302 (setq xs (string-match "\\.xs$" file))
3303 (cond ((eq erase 'ignore) nil)
3304 (erase (erase-buffer))
3305 (t
3306 (goto-char 1)
3307 (if (search-forward (concat "\f\n" file ",") nil t)
3308 (progn
3309 (search-backward "\f\n")
3310 (delete-region (point)
3311 (progn
3312 (forward-char 1)
3313 (search-forward "\f\n" nil 'toend)
3314 (point)))
3315 (goto-char 1)))))
3316 (insert (cperl-find-tags file xs))))
3317 (if inbuffer nil ; Delegate to the caller
3318 (save-buffer 0) ; No backup
3319 (initialize-new-tags-table)))))
3320
3321(defvar cperl-tags-hier-regexp-list
3322 "^\\(\\(package\\)\\>\\|sub\\>[^\n]+::\\|[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::\\|[ \t]*BOOT:\C-?[^\n]+::\\)")
3323
3324(defvar cperl-hierarchy '(() ())
3325 "Global hierarchy of classes")
3326
3327(defun cperl-tags-hier-fill ()
3328 ;; Suppose we are in a tag table cooked by cperl.
3329 (goto-char 1)
3330 (let (type pack name pos line chunk ord cons1 file str info fileind)
3331 (while (re-search-forward cperl-tags-hier-regexp-list nil t)
3332 (setq pos (match-beginning 0)
3333 pack (match-beginning 2))
3334 (beginning-of-line)
3335 (if (looking-at "\\([^\n]+\\)\C-?\\([^\n]+\\)\C-a\\([0-9]+\\),\\([0-9]+\\)")
3336 (progn
3337 (setq ;;str (buffer-substring (match-beginning 1) (match-end 1))
3338 name (buffer-substring (match-beginning 2) (match-end 2))
3339 ;;pos (buffer-substring (match-beginning 3) (match-end 3))
3340 line (buffer-substring (match-beginning 4) (match-end 4))
3341 ord (if pack 1 0)
3342 info (etags-snarf-tag) ; Moves to beginning of the next line
3343 file (file-of-tag)
3344 fileind (format "%s:%s" file line))
3345 ;; Move back
3346 (forward-char -1)
3347 ;; Make new member of hierarchy name ==> file ==> pos if needed
3348 (if (setq cons1 (assoc name (nth ord cperl-hierarchy)))
3349 ;; Name known
3350 (setcdr cons1 (cons (cons fileind (vector file info))
3351 (cdr cons1)))
3352 ;; First occurence of the name, start alist
3353 (setq cons1 (cons name (list (cons fileind (vector file info)))))
3354 (if pack
3355 (setcar (cdr cperl-hierarchy)
3356 (cons cons1 (nth 1 cperl-hierarchy)))
3357 (setcar cperl-hierarchy
3358 (cons cons1 (car cperl-hierarchy)))))))
3359 (end-of-line))))
3360
3361(defun cperl-tags-hier-init (&optional update)
3362 "Show hierarchical menu of classes and methods.
3363Finds info about classes by a scan of loaded TAGS files.
3364Supposes that the TAGS files contain fully qualified function names.
3365One may build such TAGS files from CPerl mode menu."
3366 (interactive)
3367 (require 'etags)
3368 (require 'imenu)
3369 (if (or update (null (nth 2 cperl-hierarchy)))
3370 (let (pack name cons1 to l1 l2 l3 l4
3371 (remover (function (lambda (elt) ; (name (file1...) (file2..))
3372 (or (nthcdr 2 elt)
3373 ;; Only in one file
3374 (setcdr elt (cdr (nth 1 elt))))))))
3375 ;; (setq cperl-hierarchy '(() () ())) ; Would write into '() later!
3376 (setq cperl-hierarchy (list l1 l2 l3))
3377 (or tags-table-list
3378 (call-interactively 'visit-tags-table))
3379 (message "Updating list of classes...")
3380 (mapcar
3381 (function
3382 (lambda (tagsfile)
3383 (set-buffer (get-file-buffer tagsfile))
3384 (cperl-tags-hier-fill)))
3385 tags-table-list)
3386 (mapcar remover (car cperl-hierarchy))
3387 (mapcar remover (nth 1 cperl-hierarchy))
3388 (setq to (list nil (cons "Packages: " (nth 1 cperl-hierarchy))
3389 (cons "Methods: " (car cperl-hierarchy))))
3390 (cperl-tags-treeify to 1)
3391 (setcar (nthcdr 2 cperl-hierarchy)
3392 (cperl-menu-to-keymap (cons '("+++UPDATE+++" . -999) (cdr to))))
3393 (message "Updating list of classes: done, requesting display...")
3394 ;;(cperl-imenu-addback (nth 2 cperl-hierarchy))
3395 ))
3396 (or (nth 2 cperl-hierarchy)
3397 (error "No items found"))
3398 (setq update
3399;;; (imenu-choose-buffer-index "Packages: " (nth 2 cperl-hierarchy))
3400 (if window-system
3401 (x-popup-menu t (nth 2 cperl-hierarchy))
3402 (require 'tmm)
3403 (tmm-prompt t (nth 2 cperl-hierarchy))))
3404 (if (and update (listp update))
3405 (progn (while (cdr update) (setq update (cdr update)))
3406 (setq update (car update)))) ; Get the last from the list
3407 (if (vectorp update)
3408 (progn
3409 (find-file (elt update 0))
3410 (etags-goto-tag-location (elt update 1))))
3411 (if (eq update -999) (cperl-tags-hier-init t)))
3412
3413(defun cperl-tags-treeify (to level)
3414 ;; cadr of to is read-write. On start it is a cons
3415 (let* ((regexp (concat "^\\(" (mapconcat
3416 'identity
3417 (make-list level "[_a-zA-Z0-9]+")
3418 "::")
3419 "\\)\\(::\\)?"))
3420 (packages (cdr (nth 1 to)))
3421 (methods (cdr (nth 2 to)))
3422 l1 head tail cons1 cons2 ord writeto packs recurse
3423 root-packages root-functions ms many_ms same_name ps
3424 (move-deeper
3425 (function
3426 (lambda (elt)
3427 (cond ((and (string-match regexp (car elt))
3428 (or (eq ord 1) (match-end 2)))
3429 (setq head (substring (car elt) 0 (match-end 1))
3430 tail (if (match-end 2) (substring (car elt)
3431 (match-end 2)))
3432 recurse t)
3433 (if (setq cons1 (assoc head writeto)) nil
3434 ;; Need to init new head
3435 (setcdr writeto (cons (list head (list "Packages: ")
3436 (list "Methods: "))
3437 (cdr writeto)))
3438 (setq cons1 (nth 1 writeto)))
3439 (setq cons2 (nth ord cons1)) ; Either packs or meths
3440 (setcdr cons2 (cons elt (cdr cons2))))
3441 ((eq ord 2)
3442 (setq root-functions (cons elt root-functions)))
3443 (t
3444 (setq root-packages (cons elt root-packages))))))))
3445 (setcdr to l1) ; Init to dynamic space
3446 (setq writeto to)
3447 (setq ord 1)
3448 (mapcar move-deeper packages)
3449 (setq ord 2)
3450 (mapcar move-deeper methods)
3451 (if recurse
3452 (mapcar (function (lambda (elt)
3453 (cperl-tags-treeify elt (1+ level))))
3454 (cdr to)))
3455 ;; Now add back functions removed from display
3456 (mapcar (function (lambda (elt)
3457 (setcdr to (cons elt (cdr to)))))
3458 root-functions)
3459 ;; Now add back packages removed from display
3460 (mapcar (function (lambda (elt)
3461 (setcdr to (cons (cons (concat "package " (car elt))
3462 (cdr elt))
3463 (cdr to)))))
3464 root-packages)
3465 ;;Now clean up leaders with one child only
3466 (mapcar (function (lambda (elt)
3467 (if (not (and (listp (cdr elt))
3468 (eq (length elt) 2))) nil
3469 (setcar elt (car (nth 1 elt)))
3470 (setcdr elt (cdr (nth 1 elt))))))
3471 (cdr to))
3472 ))
3473
3474;;;(x-popup-menu t
3475;;; '(keymap "Name1"
3476;;; ("Ret1" "aa")
3477;;; ("Head1" "ab"
3478;;; keymap "Name2"
3479;;; ("Tail1" "x") ("Tail2" "y"))))
3480
3481(defun cperl-list-fold (list name limit)
3482 (let (list1 list2 elt1 (num 0))
3483 (if (<= (length list) limit) list
3484 (setq list1 nil list2 nil)
3485 (while list
3486 (setq num (1+ num)
3487 elt1 (car list)
3488 list (cdr list))
3489 (if (<= num imenu-max-items)
3490 (setq list2 (cons elt1 list2))
3491 (setq list1 (cons (cons name
3492 (nreverse list2))
3493 list1)
3494 list2 (list elt1)
3495 num 1)))
3496 (nreverse (cons (cons name
3497 (nreverse list2))
3498 list1)))))
3499
3500(defun cperl-menu-to-keymap (menu &optional name)
3501 (let (list)
3502 (cons 'keymap
3503 (mapcar
3504 (function
3505 (lambda (elt)
3506 (cond ((listp (cdr elt))
3507 (setq list (cperl-list-fold
3508 (cdr elt) (car elt) imenu-max-items))
3509 (cons nil
3510 (cons (car elt)
3511 (cperl-menu-to-keymap list))))
3512 (t
3513 (list (cdr elt) (car elt))))))
3514 (cperl-list-fold menu "Root" imenu-max-items)))))
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