Source tidies for 8.34-RC1.

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1404 2f5784b3-3f2a-0410-8824-cb99058d5e15

1 files changed, 44 insertions, 0 deletions

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 News about PCRE releases
 ------------------------
 
+Release 8.34 19-November-2013
+-----------------------------
+
+As well as fixing the inevitable bugs, performance has been improved by
+refactoring and extending the amount of "auto-possessification" that PCRE does.
+Other notable changes:
+
+.  Implemented PCRE_INFO_MATCH_EMPTY, which yields 1 if the pattern can match
+   an empty string. If it can, pcretest shows this in its information output.
+
+.  A back reference to a named subpattern when there is more than one of the
+   same name now checks them in the order in which they appear in the pattern.
+   The first one that is set is used for the reference. Previously only the
+   first one was inspected. This change makes PCRE more compatible with Perl.
+
+.  Unicode character properties were updated from Unicode 6.3.0.
+
+.  The character VT has been added to the set of characters that match \s and
+   are generally treated as white space, following this same change in Perl
+   5.18. There is now no difference between "Perl space" and "POSIX space".
+
+.  Perl has changed its handling of \8 and \9. If there is no previously
+   encountered capturing group of those numbers, they are treated as the
+   literal characters 8 and 9 instead of a binary zero followed by the
+   literals. PCRE now does the same.
+
+.  Following Perl, added \o{} to specify codepoints in octal, making it
+   possible to specify values greater than 0777 and also making them
+   unambiguous.
+
+.  In UCP mode, \s was not matching two of the characters that Perl matches,
+   namely NEL (U+0085) and MONGOLIAN VOWEL SEPARATOR (U+180E), though they
+   were matched by \h.
+
+.  Add JIT support for the 64 bit TileGX architecture.
+
+.  Upgraded the handling of the POSIX classes [:graph:], [:print:], and
+   [:punct:] when PCRE_UCP is set so as to include the same characters as Perl
+   does in Unicode mode.
+
+.  Perl no longer allows group names to start with digits, so I have made this
+   change also in PCRE.
+
+
 Release 8.33 28-May-2013
 --------------------------