=head1 NAME
-[ this is a template for a new perldelta file. Any text flagged as
-XXX needs to be processed before release. ]
-
-perldelta - what is new for perl v5.11.3
+perl5113delta - what is new for perl v5.11.3
=head1 DESCRIPTION
-This document describes differences between the 5.11.3 release and
+This document describes differences between the 5.11.2 release and
the 5.11.3 release.
-If you are upgrading from an earlier release such as 5.11.3, first read
-the L<perl5XXXdelta>, which describes differences between 5.11.3 and
-5.10.0
-
-=head1 Notice
-
-XXX Any important notices here
+If you are upgrading from an earlier release such as 5.11.1, first read
+the L<perl5112delta>, which describes differences between 5.11.1 and
+5.11.2
=head1 Incompatible Changes
-XXX For a release on a stable branch, this section aspires to be:
-
- There are no changes intentionally incompatible with 5.11.3. If any
- exist, they are bugs and reports are welcome.
+=head2 Filehandles are blessed directly into C<IO::Handle>, as C<FileHandle> is merely a wrapper around C<IO::Handle>.
+The previous behaviour was to bless Filehandles into L<FileHandle>
+(an empty proxy class) if it was loaded into memory and otherwise
+to bless them into C<IO::Handle>.
=head1 Core Enhancements
-XXX New core language features go here. Summarise user-visible core language
-enhancements. Particularly prominent performance optimisations could go
-here, but most should go in the L</Performance Enhancements> section.
-
=head2 Unicode version
-Perl is shipped with the latest Unicode version, 5.2, October 2009. See
+Perl is shipped with the latest Unicode version, 5.2, dated October 2009. See
L<http://www.unicode.org/versions/Unicode5.2.0> for details about this release
-of Unicode.
+of Unicode. See L<perlunicode> for instructions on installing and using
+older versions of Unicode.
=head2 Unicode properties
in writing regular expressions: C<\p{property=value}> and
C<\p{property:value}> (both of which mean the same thing).
-Perl now supports fully the Unicode loose matching rules for text
+Perl now fully supports the Unicode loose matching rules for text
between the braces in C<\p{...}> constructs. In addition, Perl also allows
underscores between digits of numbers.
All the Unicode-defined synonyms for properties and property values are
now accepted.
+C<qr/\X/>, which matches a Unicode logical character, has been expanded to work
+better with various Asian languages. It now is defined as an C<extended
+grapheme cluster>. (See L<http://www.unicode.org/reports/tr29/>).
+Anything matched previously that made sense will continue to be matched. But
+in addition:
+
+=over
+
+=item *
+
+C<\X> will now not break apart a C<S<CR LF>> sequence.
+
+=item *
+
+C<\X> will now match a sequence including the C<ZWJ> and C<ZWNJ> characters.
+
+=item *
+
+C<\X> will now always match at least one character, including an initial mark.
+Marks generally come after a base character, but it is possible in Unicode to
+have them in isolation, and C<\X> will now handle that case, for example at the
+beginning of a line or after a C<ZWSP>. And this is the part where C<\X>
+doesn't match the things that it used to that don't make sense. Formerly, for
+example, you could have the nonsensical case of an accented LF.
+
+=item *
+
+C<\X> will now match a (Korean) Hangul syllable sequence, and the Thai and Lao
+exception cases.
+
+=back
+
+Otherwise, this change should be transparent for the non-affected languages.
+
C<\p{...}> matches using the Canonical_Combining_Class property were
completely broken in previous Perls. This is now fixed.
-In previous Perls, the Unicode Decomposition_Type=Compat property and a
+In previous Perls, the Unicode C<Decomposition_Type=Compat> property and a
Perl extension had the same name, which led to neither matching all the
correct values (with more than 100 mistakes in one, and several thousand
in the other). The Perl extension has now been renamed to be
-Decomposition_Type=Noncanonical (short: dt=noncanon). It has the same
+C<Decomposition_Type=Noncanonical> (short: C<dt=noncanon>). It has the same
meaning as was previously intended, namely the union of all the
-non-canonical Decomposition types, with Unicode Compat being just one of
+non-canonical Decomposition types, with Unicode C<Compat> being just one of
those.
C<\p{Uppercase}> and C<\p{Lowercase}> have been brought into line with the
C<\p{Alpha}> now matches the same characters as C<\p{Alphabetic}>. The Perl
definition included a number of things that aren't really alpha (all
-marks), while omitting many that were. The Unicode definition is
-clearly better, so we are switching to it. As a direct consequence, the
+marks), while omitting many that were. As a direct consequence, the
definitions of C<\p{Alnum}> and C<\p{Word}> which depend on Alpha also change.
C<\p{Word}> also now doesn't match certain characters it wasn't supposed
to, such as fractions.
-C<\p{Print}> no longer matches the line control characters: tab, lf, cr,
-ff, vt, and nel. This brings it in line with the documentation.
+C<\p{Print}> no longer matches the line control characters: Tab, LF, CR,
+FF, VT, and NEL. This brings it in line with the documentation.
-\p{Decomposition_Type=Canonical} now includes the Hangul syllables
+C<\p{Decomposition_Type=Canonical}> now includes the Hangul syllables.
The Numeric type property has been extended to include the Unihan
characters.
-There is a new Perl extension, the 'Present_In', or simply 'In'
+There is a new Perl extension, the 'Present_In', or simply 'In',
property. This is an extension of the Unicode Age property, but
-C<\p{In=5.0}> matches any code point whose usage has been determined as of
-Unicode version 5.0. The C<\p{Age=5.0}> only matches code points added in 5.0.
+C<\p{In=5.0}> matches any code point whose usage has been determined
+I<as of> Unicode version 5.0. The C<\p{Age=5.0}> only matches code points
+added in I<precisely> version 5.0.
A number of properties did not have the correct values for unassigned
code points. This is now fixed. The affected properties are
Hangul_Syllable_Type, Numeric_Type, and Line_Break.
The Default_Ignorable_Code_Point, ID_Continue, and ID_Start properties
-have been updated to their current definitions.
+have been updated to their current Unicode definitions.
Certain properties that are supposed to be Unicode internal-only were
erroneously exposed by previous Perls. Use of these in regular
-expressions will now generate a deprecated warning message, if those
-warnings are enabled. The properties are: Other_Alphabetic,
-Other_Default_Ignorable_Code_Point, Other_Grapheme_Extend,
-Other_ID_Continue, Other_ID_Start, Other_Lowercase, Other_Math, and
-Other_Uppercase.
-
-An installation can now fairly easily change Perl to operate on any
-Unicode release. Perl is shipped with the latest official release, but
-an installation can now download any prior release, and Perl will work
-with that. Instructions are in L<perlunicode>.
+expressions will now generate, if enabled, a deprecated warning message.
+The properties are: Other_Alphabetic, Other_Default_Ignorable_Code_Point,
+Other_Grapheme_Extend, Other_ID_Continue, Other_ID_Start, Other_Lowercase,
+Other_Math, and Other_Uppercase.
An installation can now fairly easily change which Unicode properties
Perl understands. As mentioned above, certain properties are by default
accessible via the CPAN module Unicode::Unihan) and any deprecated or
Unicode internal-only property that Perl has never exposed.
-The files in the To directory are now more clearly marked as being
-stable, directly usable by applications. New hash entries in them give
-the format of the normal entries which allows for easier machine
-parsing. Perl can generate files in this directory for any property,
-though most are suppressed. An installation can choose to change which
-get written. Instructions are in L<perluniprops>.
+The generated files in the C<lib/unicore/To> directory are now more
+clearly marked as being stable, directly usable by applications.
+New hash entries in them give the format of the normal entries,
+which allows for easier machine parsing. Perl can generate files
+in this directory for any property, though most are suppressed. An
+installation can choose to change which get written. Instructions
+are in L<perluniprops>.
-=head1 New Platforms
+=head2 Regular Expressions
-XXX List any platforms that this version of perl compiles on, that previous
-versions did not. These will either be enabled by new files in the F<hints/>
-directories, or new subdirectories and F<README> files at the top level of the
-source tree.
+U+0FFFF is now a legal character in regular expressions.
=head1 Modules and Pragmata
-XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/>
-go here, in a list ordered by distribution name. Minimally it should be the
-module version, but it's more useful to the end user to give a paragraph's
-summary of the module's changes. In an ideal world, dual-life modules would
-have a F<Changes> file that could be cribbed.
-
-=head2 New Modules and Pragmata
+=head2 Pragmata Changes
=over 4
-=item C<XXX>
+=item C<constant>
-XXX
+Upgraded from version 1.19 to 1.20.
-=back
+=item C<diagnostics>
-=head2 Pragmata Changes
+This pragma no longer suppresses C<Use of uninitialized value in range (or flip)> warnings. [perl #71204]
-=over 4
+=item C<feature>
+
+Upgraded from 1.13 to 1.14. Added the C<unicode_strings> feature:
+
+ use feature "unicode_strings";
+
+This pragma turns on Unicode semantics for the case-changing operations
+(uc/lc/ucfirst/lcfirst) on strings that don't have the internal UTF-8 flag set,
+but that contain single-byte characters between 128 and 255.
+
+=item C<legacy>
+
+The experimental C<legacy> pragma, introduced in 5.11.2, has been removed,
+and its functionality replaced by the new feature pragma, C<use feature
+"unicode_strings">.
+
+=item C<threads>
-=item C<XXX>
+Upgraded from version 1.74 to 1.75.
-XXX
+=item C<warnings>
+
+Upgraded from 1.07 to 1.08. Added new C<warnings::fatal_enabled()> function.
=back
=over 4
-=item C<XXX>
+=item C<Archive::Extract>
-XXX
+Upgraded from version 0.34 to 0.36.
-=back
+=item C<CPAN>
-=head1 Utility Changes
+Upgraded from version 1.94_51 to 1.94_5301, which is 1.94_53 on CPAN
+plus some local fixes for bleadperl.
-XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go
-here. Most of these are built within the directories F<utils> and F<x2p>.
+Includes better bzip2 support, improved FirstTime experience with
+auto-selection of CPAN mirrors, proper handling of modules removed from the
+Perl core, and an updated 'cpan' utility script
-=over 4
+=item C<CPANPLUS>
-=item F<XXX>
+Upgraded from version 0.89_09 to 0.90.
-XXX
+=item C<Encode>
-=back
+Upgraded from version 2.38 to 2.39.
+
+=item C<ExtUtils::MakeMaker>
+
+Upgraded from version 6.55_02 to 6.56. Adds new BUILD_REQUIRES key to
+indicate build-only prerequisites. Also adds support for
+mingw64 and the new "package NAME VERSION" syntax.
+
+=item C<File::Path>
+
+Upgraded from version 2.08 to 2.08_01.
+
+=item C<Module::Build>
+
+Upgraded from version 0.35_09 to 0.36. Compared to 0.35, this version has a
+new 'installdeps' action, supports the PERL_MB_OPT environment variable, adds a
+'share_dir' property for L<File::ShareDir> support, support the "package NAME
+VERSION" syntax and has many other enhancements and bug fixes. The
+'passthrough' style of Module::Build::Compat has been deprecated.
+
+=item C<Module::CoreList>
+
+Upgraded from version 2.23 to 2.24.
+
+=item C<POSIX>
+
+Upgraded from version 1.18 to 1.19. Error codes for C<getaddrinfo()> and
+C<getnameinfo()> are now available.
+
+=item C<Pod::Simple>
+
+Upgraded from version 3.10 to 3.13.
-=head1 New Documentation
+=item C<Safe>
-XXX Changes which create B<new> files in F<pod/> go here.
+Upgraded from version 2.19 to 2.20.
+
+=back
+
+=head1 Utility Changes
=over 4
-=item L<XXX>
+=item F<perlbug>
-XXX
+No longer reports "Message sent" when it hasn't actually sent the message
=back
=head1 Changes to Existing Documentation
-XXX Changes which significantly change existing files in F<pod/> go here.
-Any changes to F<pod/perldiag.pod> should go in L</New or Changed Diagnostics>.
+The Pod specification (L<perlpodspec>) has been updated to bring the
+specification in line with modern usage already supported by most Pod systems.
+A parameter string may now follow the format name in a "begin/end" region.
+Links to URIs with a text description are now allowed. The usage of
+C<LE<lt>"section"E<gt>> has been marked as deprecated.
+
+L<if.pm|if> has been documented in L<perlfunc/use> as a means to get
+conditional loading of modules despite the implicit BEGIN block around C<use>.
+
+
+
+=head1 Installation and Configuration Improvements
+=head2 Testing improvements
-=head1 Performance Enhancements
+=over 4
+
+=item It's now possible to override C<PERL5OPT> and friends in F<t/TEST>
+
+=back
+
+=head2 Platform Specific Changes
+
+=over 4
-XXX Changes which enhance performance without changing behaviour go here. There
-may well be none in a stable release.
+=item Win32
=over 4
=item *
-XXX
+Always add a manifest resource to C<perl.exe> to specify the C<trustInfo>
+settings for Windows Vista and later. Without this setting Windows
+will treat C<perl.exe> as a legacy application and apply various
+heuristics like redirecting access to protected file system areas
+(like the "Program Files" folder) to the users "VirtualStore"
+instead of generating a proper "permission denied" error.
-=back
+For VC8 and VC9 this manifest setting is automatically generated by
+the compiler/linker (together with the binding information for their
+respective runtime libraries); for all other compilers we need to
+embed the manifest resource explicitly in the external resource file.
-=head1 Installation and Configuration Improvements
+This change also requests the Microsoft Common-Controls version 6.0
+(themed controls introduced in Windows XP) via the dependency list
+in the assembly manifest. For VC8 and VC9 this is specified using the
+C</manifestdependency> linker commandline option instead.
-XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools
-go here.
+=back
-=head2 Configuration improvements
+=item cygwin
-XXX
+=over 4
-=head2 Compilation improvements
+=item Enable IPv6 support on cygwin 1.7 and newer
-XXX
+=back
-=head2 Platform Specific Changes
+=item OpenVMS
=over 4
-=item XXX-some-platform
+=item Make -UDEBUGGING the default on VMS for 5.12.0.
-XXX
+Like it has been everywhere else for ages and ages. Also make
+command-line selection of -UDEBUGGING and -DDEBUGGING work in
+configure.com; before the only way to turn it off was by saying
+no in answer to the interactive question.
=back
-=head1 Selected Bug Fixes
+=back
-XXX Important bug fixes in the core language are summarised here.
-Bug fixes in files in F<ext/> and F<lib/> are best summarised in
-L</Modules and Pragmata>.
+=head1 Selected Bug Fixes
=over 4
=item *
-XXX
+Ensure that pp_qr returns a new regexp SV each time. Resolves RT #69852.
-=back
+Instead of returning a(nother) reference to the (pre-compiled) regexp in the
+optree, use reg_temp_copy() to create a copy of it, and return a reference to
+that. This resolves issues about Regexp::DESTROY not being called in a timely
+fashion (the original bug tracked by RT #69852), as well as bugs related to
+blessing regexps, and of assigning to regexps, as described in correspondence
+added to the ticket.
-=head1 New or Changed Diagnostics
+It transpires that we also need to undo the SvPVX() sharing when ithreads
+cloning a Regexp SV, because mother_re is set to NULL, instead of a cloned
+copy of the mother_re. This change might fix bugs with regexps and threads in
+certain other situations, but as yet neither tests nor bug reports have
+indicated any problems, so it might not actually be an edge case that it's
+possible to reach.
-XXX New or changed warnings emitted by the core's C<C> code go here.
+=item *
-=over 4
+Several compilation errors and segfaults when perl was built with C<-Dmad> were fixed.
+
+=item *
+
+Fixes for lexer API changes in 5.11.2 which broke NYTProf's savesrc option.
-=item C<XXX>
+=item *
-XXX
+F<-t> should only return TRUE for file handles connected to a TTY
-=back
+The Microsoft C version of isatty() returns TRUE for all
+character mode devices, including the /dev/null style "nul"
+device and printers like "lpt1".
+
+=item *
+
+Fixed a regression caused by commit fafafbaf which caused a panic during
+parameter passing [perl #70171]
+
+=item *
+
+On systems which in-place edits without backup files, -i'*' now works as
+the documentation says it does [perl #70802]
+
+=item *
+
+Saving and restoring magic flags no longer loses readonly flag.
+
+=item *
+
+The malformed syntax C<grep EXPR LIST> (note the missing comma) no longer
+causes abrupt and total failure.
+
+=item *
+
+Regular expressions compiled with C<qr{}> literals properly set C<$'> when
+matching again.
+
+=item *
-=head1 Changed Internals
+Using named subroutines with C<sort> should no longer lead to bus errors [perl
+#71076]
-XXX Changes which affect the interface available to C<XS> code go here.
+=item *
+
+Numerous bugfixes catch small issues caused by the recently-added Lexer API.
+
+=item *
+
+Smart match against C<@_> sometimes gave false negatives. [perl #71078]
+
+=item *
+
+C<$@> may now be assigned a read-only value (without error or busting the stack).
+
+=item *
+
+C<sort> called recursively from within an active comparison subroutine no
+longer causes a bus error if run multiple times. [perl #71076]
+
+=back
+
+=head1 New or Changed Diagnostics
=over 4
=item *
-XXX
+C<split> now warns when called in void context
+
+=item *
+
+C<printf>-style functions called with too few arguments will now issue the
+warning C<"Missing argument in %s"> [perl #71000]
=back
=head1 New Tests
-XXX Changes which create B<new> files in F<t/> go here. Changes to
-existing files in F<t/> aren't worth summarising, although the bugs that
-they represent may be.
+Many modules updated from CPAN incorporate new tests.
=over 4
-=item F<XXX>
+=item t/comp/final_line_num.t
-XXX
+See if line numbers are correct at EOF
-=back
+=item t/comp/form_scope.t
-=head1 Known Problems
+See if format scoping works
-XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any
-tests that had to be C<TODO>ed for the release would be noted here, unless
-they were specific to a particular platform (see below).
+=item t/comp/line_debug.t
-This is a list of some significant unfixed bugs, which are regressions
-from either 5.11.3 or 5.11.3.
+See if @{"_<$file"} works
-=over 4
+=item t/op/filetest_t.t
-=item *
+See if -t file test works
+
+=item t/op/qr.t
+
+See if qr works
+
+=item t/op/utf8cache.t
+
+Tests malfunctions of utf8 cache
+
+=item t/re/uniprops.t
-XXX
+Test unicode \p{} regex constructs
=back
=head1 Deprecations
-XXX Add any new known deprecations here.
-
The following items are now deprecated.
=over 4
=back
-=head1 Platform Specific Notes
-
-XXX Any changes specific to a particular platform. VMS and Win32 are the usual
-stars here. It's probably best to group changes under the same section layout
-as the main perldelta
-
-=head1 Obituary
-
-XXX If any significant core contributor has died, we've added a short obituary
-here.
-
=head1 Acknowledgements
-XXX The list of people to thank goes here.
+Perl 5.11.3 represents approximately one month of development since
+Perl 5.11.2 and contains 61407 lines of changes across 396 files
+from 40 authors and committers:
+
+Abigail, Alex Davies, Alexandr Ciornii, Andrew Rodland, Andy
+Dougherty, Bram, brian d foy, Chip Salzenberg, Chris Williams, Craig
+A. Berry, Daniel Frederick Crisman, David Golden, Dennis Kaarsemaker,
+Eric Brine, Father Chrysostomos, Gene Sullivan, Gerard Goossen, H.
+Merijn Brand, Hugo van der Sanden, Jan Dubois, Jerry D. Hedden,
+Jesse Vincent, Jim Cromie, Karl Williamson, Leon Brocard, Max
+Maischein, Michael Breen, Moritz Lenz, Nicholas Clark, Rafael
+Garcia-Suarez, Reini Urban, Ricardo Signes, Stepan Kasal, Steve
+Hay, Steve Peters, Tim Bunce, Tony Cook, Vincent Pit and Zefram.
+Many of the changes included in this version originated in the CPAN
+modules included in Perl's core. We're grateful to the entire CPAN
+community for helping Perl to flourish.
=head1 Reporting Bugs
The F<Artistic> and F<Copying> files for copyright information.
=cut
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff