=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 5.11.2 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
-=over
-
-=item Filehandles are blessed directly into C<IO::Handle::>, as C<FileHandle> is merely a wrapper around C<IO::Handle>.
-
-XXX Some description of why this change was made would be nice -- e.g. what
-the benefit that justifies the incompatibility -- dagolden, 2009-12-20
+=head2 Filehandles are blessed directly into C<IO::Handle>, as C<FileHandle> is merely a wrapper around C<IO::Handle>.
-=back
+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. See L<perlunicode> for instructions on installing and using
older versions of Unicode.
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/>). One change
-due to this is that C<\X> will match the whole sequence C<S<CR LF>>. Another
-change is that C<\X> will match an isolated 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. Otherwise, this change should be transparent
-for non-affected languages.
+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.
-C<\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.
+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.
-XXX what does "files in the To directory" mean? -- dagolden, 2009-12-20
-
-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
-XXX
+=item C<constant>
-=back
+Upgraded from version 1.19 to 1.20.
-=head2 Pragmata Changes
+=item C<diagnostics>
-=over 4
+This pragma no longer suppresses C<Use of uninitialized value in range (or flip)> warnings. [perl #71204]
=item C<feature>
and its functionality replaced by the new feature pragma, C<use feature
"unicode_strings">.
+=item C<threads>
+
+Upgraded from version 1.74 to 1.75.
+
=item C<warnings>
Upgraded from 1.07 to 1.08. Added new C<warnings::fatal_enabled()> function.
=head2 Updated Modules
-XXX This should be generated with Porting/corelist-perldelta.pl once
-Module::Corelist is updated for 5.011003.
+=over 4
-=head1 Utility Changes
+=item C<Archive::Extract>
-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>.
+Upgraded from version 0.34 to 0.36.
-=over 4
+=item C<CPAN>
-=item F<perlbug>
+Upgraded from version 1.94_51 to 1.94_5301, which is 1.94_53 on CPAN
+plus some local fixes for bleadperl.
-No longer reports "Message sent" when it hasn't actually sent the message
+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
-=back
+=item C<CPANPLUS>
-=head1 New Documentation
+Upgraded from version 0.89_09 to 0.90.
-XXX Changes which create B<new> files in F<pod/> go here.
+=item C<Encode>
-=over 4
+Upgraded from version 2.38 to 2.39.
-=item L<XXX>
+=item C<ExtUtils::MakeMaker>
-XXX
+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.
-=back
+=item C<File::Path>
-=head1 Changes to Existing Documentation
+Upgraded from version 2.08 to 2.08_01.
-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>.
+=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.
-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.
+=item C<Module::CoreList>
-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>.
+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.
+=item C<Safe>
-=head1 Performance Enhancements
+Upgraded from version 2.19 to 2.20.
-XXX Changes which enhance performance without changing behaviour go here. There
-may well be none in a stable release.
+=back
+
+=head1 Utility Changes
=over 4
-=item *
+=item F<perlbug>
-XXX
+No longer reports "Message sent" when it hasn't actually sent the message
=back
-=head1 Installation and Configuration Improvements
+=head1 Changes to Existing Documentation
-XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools
-go here.
+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.
-=head2 Configuration improvements
+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>.
-XXX
-=head2 Compilation improvements
- Make distclean work again
-XXX
+=head1 Installation and Configuration Improvements
=head2 Testing improvements
=item *
-Always add a manifest resource to C<perl.exe> to specify the <trustInfo>
+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
=head1 Selected Bug Fixes
-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>.
-
=over 4
=item *
Fixes for lexer API changes in 5.11.2 which broke NYTProf's savesrc option.
-=back
+=item *
-=head1 New or Changed Diagnostics
+F<-t> should only return TRUE for file handles connected to a TTY
-XXX New or changed warnings emitted by the core's C<C> code go here.
+The Microsoft C version of isatty() returns TRUE for all
+character mode devices, including the /dev/null style "nul"
+device and printers like "lpt1".
-=over 4
+=item *
-=item C<XXX>
+Fixed a regression caused by commit fafafbaf which caused a panic during
+parameter passing [perl #70171]
- Make split warn in void context
-XXX
+=item *
-=back
+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<$'> when
+matching again.
-=head1 Changed Internals
+=item *
-XXX Changes which affect the interface available to C<XS> code go here.
+Using named subroutines with C<sort> should no longer lead to bus errors [perl
+#71076]
+
+=item *
+
+Numerous bugfixes catch small issues caused by the recently-added Lexer API.
+
+=item *
+
+Smart match against C<@_> sometimes gave false negatives. [perl #71078]
+
+=item *
+
+C<$@> 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
-XXX
+See if qr works
+
+=item t/op/utf8cache.t
+
+Tests malfunctions of utf8 cache
+
+=item t/re/uniprops.t
+
+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
=cut
-
-
-All changes through commit b4178430270dbe109e7609d0b50d6d54bf9e95d8
-One "triage" pass done.
-
-A second triage pass is still needed to remove unimportant changes
-
-commit 9307c420fad2f6f5bd314f9ed66dd53288703e09
-Author: Jan Dubois <jand@activestate.com>
-Date: Thu Dec 17 18:28:16 2009 -0800
-
- Export PL_curinterp symbol for MULTIPLICITY without USE_ITHREADS
-
- This is necessary for XS extensions that define PERL_CORE. In that
- situation PERL_GET_CONTEXT will resolve to PL_curinterp, which is
- normally not exported (extensions call Perl_Gcurinterp_ptr() to get a
- pointer to PL_curinterp instead). With USE_ITHREADS defined
- PERL_GET_CONTEXT will expand to Perl_get_context() even inside the
- core because the context needs to be fetched from threadlocal storage.
-
-commit 8703a9a4fd75723318bc4ba1afc42a215806f2d1
-
- Correct some #ifdef USE_ITHREADS / USE_MULTI
-
-Author: Jan Dubois <jand@activestate.com>
-Date: Wed Dec 16 15:42:19 2009 -0800
-
- -t should only return TRUE for file handles connected to a TTY
-
- The Microsoft C version of isatty() returns TRUE for all
- character mode devices, including the /dev/null style "nul"
- device and printers like "lpt1".
-
- The included test has only been tested on Windows and Linux;
- the device names for OS/2 and VMS are just best guesses...
-
-commit 0f907b96d618c97cd2e020841a70ae037954a616
-
- [perl #70171] 5.10.0 -> 5.10.1 Regression in fafafbaf70 (Big slowdown in 5.10 @_ parameter passing)
-
-commit 2ab54efd6265713df5cd4bd0927024245675c1c2
-
- fix bug 67156: overload: nomethod(..., '!') return value inverted
-
-commit 412147f664b7f5805591ad996d7e5a9e70b3d80f
-
- [perl #71204] diagnostics.pm suppresses 'Use of uninitialized value in range (or flip)' warning
-
-
-commit 69dc4b30f4725ad5f212d45d3c856ac1caaacf17
-Author: Father Chrysostomos <sprout@cpan.org>
-Date: Mon Dec 14 12:19:35 2009 +0100
-
- [perl #70764] $' fails to initialized for pre-compiled regular expression matches
-
- The match vars are associated with the regexp that last matched
- successfully. In the case of $str =~ $qr or /$qr/, since the $qr could
- be used in multiple scopes that need their own sets of match vars, the
- $qr is cloned by Perl_reg_temp_copy as of change 30677/28d8d7f. This
- happens in pp_regcomp before pp_match has stringified the LHS, hence the
- bug. In short, /$gror/ is not equivalent to
- ($which = !$which) ? /$gror/ : /$gror/, which is weird.
-
-Author: Reini Urban <rurban@x-ray.at>
-Date: Sun Dec 13 08:06:43 2009 +0100
-
- Eliminate OP_SETSTATE from cop.h header
-
- It had been added with change 3728 to track linenumbers in
- optimized else, disabled by change 4309,
- and removed with change 33072.
-
- Bump copyright, latest change was "Fix MULTICALL in List-Util" 2009-03-07
- with commit 1bbbfc50
-
-
- Fix for [perl #70910] wrong line number in syntax error message
-
- Document config_args limitations reported in [perl #70912]
-
- proper error on "grep $x (1,2,3)". Solves [perl #37314]
-
-commit 8a27a13e89107aaf68c0748b68ee71fbd86d774b
-
- [perl #71076] sort with active sub (5.10 regression)
-
- One of the tests in sort.t causes a bus error (or sometimes â\80\98Undefined
- subroutine calledâ\80\99) if run multiple times. This is because sort
- decreases the refcount of an active sub used as a comparison routine.
-
-commit 69c3dccf5322a59cb855347c04712ba11b65328f
-
- Fix [perl #71078] Smart match against @_ gives false negatives
-
- @_ can contain NULLs for undefined elements
-
- [perl #71000] Wrong variable name in warning ; Add a new warning "Missing argument in %s"
-
-
- preserve readonly flag when saving and restoring magic flags
-
-commit c9930541bfa04399c3b648e83c9b750cee1154fb
-
- [perl #70802] -i'*' refuses to work
-
-commit adab996997d7ef1b54d382f5ab4304f438cd1dd0
-
- Cleanup all scopes before exiting a pseudo-forked process.
-
- perl_destruct() contains an assertion that the scope stack
- is empty. The remaining scopes are due to fork() being
- called from within a BEGIN block.
-
-commit 576b33a19ccaf98d4dfe201d529c55c3747f0cb6
-
- [rt.cpan.org #51574] Safe.pm sort {} bug accessing $a and $b with -Dusethreads
-
-commit ee6ba15dedda3e88eb66891eaf387c00a4c0a2fb
-
- Fix -DPERL_NO_UTF16_FILTER
-
-commit dfd167e94af611f6248e804cb228b35ca4123bd6
-
- Handle $@ being assigned a read-only value (without error or busting the stack).
-
- Discovered whilst investigating RT #70862.
-
-commit f5fa9033b8c1fdcbd7710850b3b0380d6b937853
-
- Fix RT #70862 by converting ERRSV to GvSVn() to ensure a non-NULL GvSV().
-
-commit ff868e665bf85a829dc47bfa1243b26d4367cacd
-
- Add error codes for getaddrinfo() and getnameinfo()
-
-commit 61fc5122f0d8a509834282b8ecb3252d2e4c9f5d
-
- Make unicode semantics the default
-
- *****************
-
-commit 021f53de09926928546378b3552f9240c9241dde
-Author: Gerard Goossen <gerard@ggoossen.net>
-Date: Mon Nov 16 13:58:24 2009 +0100
-
- Force OP_REQUIRE to scalar context at the end of ck_require and don't let it become void context. Fixes problem with require not always being in scalar context.
-
-commit 6a0e50422a84b53e998825128c56791913cd03aa
-Author: Craig A. Berry <craigberry@mac.com>
-Date: Sat Nov 21 11:17:38 2009 -0600
-
projects / p5sagit/p5-mst-13.2.git / blobdiff