=head1 Incompatible Changes
+=head2 Unicode interpretation of \w, \d, \s, and the POSIX character classes redefined.
+
+Previous versions of Perl tried to map POSIX style character class definitions onto
+Unicode property names so that patterns would "dwim" when matches were made against latin-1 or
+unicode strings. This proved to be a mistake, breaking character class negation, causing
+forward compatibility problems (as Unicode keeps updating their property definitions and adding
+new characters), and other problems.
+
+Therefore we have now defined a new set of artificial "unicode" property names which will be
+used to do unicode matching of patterns using POSIX style character classes and perl short-form
+escape character classes like \w and \d.
+
+The key change here is that \d will no longer match every digit in the unicode standard
+(there are thousands) nor will \w match every word character in the standard, instead they
+will match precisely their POSIX or Perl definition.
+
+Those needing to match based on Unicode properties can continue to do so by using the \p{} syntax
+to match whichever property they like, including the new artificial definitions.
+
+B<NOTE:> This is a backwards incompatible no-warning change in behaviour. If you are upgrading
+and you process large volumes of text look for POSIX and Perl style character classes and
+change them to the relevent property name (by removing the word 'Posix' from the current name).
+
+The following table maps the POSIX character class names, the escapes and the old and new
+Unicode property mappings:
+
+ POSIX Esc Class New-Property ! Old-Property
+ ----------------------------------------------+-------------
+ alnum [0-9A-Za-z] IsPosixAlnum ! IsAlnum
+ alpha [A-Za-z] IsPosixAlpha ! IsAlpha
+ ascii [\000-\177] IsASCII = IsASCII
+ blank [\011 ] IsPosixBlank !
+ cntrl [\0-\37\177] IsPosixCntrl ! IsCntrl
+ digit \d [0-9] IsPosixDigit ! IsDigit
+ graph [!-~] IsPosixGraph ! IsGraph
+ lower [a-z] IsPosixLower ! IsLower
+ print [ -~] IsPosixPrint ! IsPrint
+ punct [!-/:-@[-`{-~] IsPosixPunct ! IsPunct
+ space [\11-\15 ] IsPosixSpace ! IsSpace
+ \s [\11\12\14\15 ] IsPerlSpace ! IsSpacePerl
+ upper [A-Z] IsPosixUpper ! IsUpper
+ word \w [0-9A-Z_a-z] IsPerlWord ! IsWord
+ xdigit [0-9A-Fa-f] IsXDigit = IsXDigit
+
+If you wish to build perl with the old mapping you may do so by setting
+
+ #define PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS 1
+
+in regcomp.h, and then setting
+
+ PERL_TEST_LEGACY_POSIX_CC
+
+to true your enviornment when testing.
+
+
=head2 In @INC, move ARCHLIB and PRIVLIB after the current version's site_perl and vendor_perl.
=head2 Switch statement changes
=item C<Socket>
-Upgraded from 1.80 to 1.82.
+Upgraded from 1.80 to 1.84.
+
+As of 1.84, C<Socket> can now handle abstract namespace sockets on Linux.
+(see unix(7)).
=item C<Storable>
=head2 Documented that when() treats specially most of the filetest operators
-=head2 Documented that DESTROY is subject to AUTOLOAD, and the related optimisations.
-
=head2 Documented when as a syntax modifier
=head2 Eliminated "Old Perl threads tutorial", which describes 5005 threads.
pod/perlthrtut.pod is the same material reworked for ithreads.
-=head2 Removed a link to the attrs pragma, which has now been removed.
-
-=head2 update PERL_MEM_LOG in perlhack.pod
-
=head2 Correct previous documentation: v-strings are not deprecated
With version objects, we need them to use MODULE VERSION syntax. This
=item *
-(XS) In various hash functions, passing a pre-computed hash to when the
-key is UTF-8 might result in an incorrect lookup.
+In the XS API, various hash functions, when passed a pre-computed hash where
+the key is UTF-8, might result in an incorrect lookup.
=item *
-(XS) Including F<XSUB.h> before F<perl.h> gave a compile-time error
+XS code including F<XSUB.h> before F<perl.h> gave a compile-time error
[RT #57176].
=item *
=head1 Acknowledgements
-Some of the work in this release was funded by a TPF grant.
-
-Nicholas Clark officially retired from maintenance pumpking duty at the
-end of 2008; however in reality he has put much effort in since then to
-help get 5.10.1 into a fit state to be released, including writing a
-considerable chunk of this perldelta.
+Some of the work in this release was funded by a TPF grant funded by
+Dijkmat BV, The Netherlands.
Steffen Mueller and David Golden in particular helped getting CPAN modules
polished and synchronised with their in-core equivalents.
=head2 Add a pluggable hook in op_free()
+
+
+
projects / p5sagit/p5-mst-13.2.git / blobdiff