--- win32/pcre/NEWS 2009/04/10 12:53:36 1.2 +++ win32/pcre/NEWS 2019/12/03 16:37:21 1.9 @@ -1,6 +1,336 @@ News about PCRE releases ------------------------ +Note that this library (now called PCRE1) is now being maintained for bug fixes +only. New projects are advised to use the new PCRE2 libraries. + + +Release 8.43 23-February-2019 +----------------------------- + +This is a bug-fix release. + + +Release 8.42 20-March-2018 +-------------------------- + +This is a bug-fix release. + + +Release 8.41 13-June-2017 +------------------------- + +This is a bug-fix release. + + +Release 8.40 11-January-2017 +---------------------------- + +This is a bug-fix release. + + +Release 8.39 14-June-2016 +------------------------- + +Some appropriate PCRE2 JIT improvements have been retro-fitted to PCRE1. Apart +from that, this is another bug-fix release. Note that this library (now called +PCRE1) is now being maintained for bug fixes only. New projects are advised to +use the new PCRE2 libraries. + + +Release 8.38 23-November-2015 +----------------------------- + +This is bug-fix release. Note that this library (now called PCRE1) is now being +maintained for bug fixes only. New projects are advised to use the new PCRE2 +libraries. + + +Release 8.37 28-April-2015 +-------------------------- + +This is bug-fix release. Note that this library (now called PCRE1) is now being +maintained for bug fixes only. New projects are advised to use the new PCRE2 +libraries. + + +Release 8.36 26-September-2014 +------------------------------ + +This is primarily a bug-fix release. However, in addition, the Unicode data +tables have been updated to Unicode 7.0.0. + + +Release 8.35 04-April-2014 +-------------------------- + +There have been performance improvements for classes containing non-ASCII +characters and the "auto-possessification" feature has been extended. Other +minor improvements have been implemented and bugs fixed. There is a new callout +feature to enable applications to do detailed stack checks at compile time, to +avoid running out of stack for deeply nested parentheses. The JIT compiler has +been extended with experimental support for ARM-64, MIPS-64, and PPC-LE. + + +Release 8.34 15-December-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. + +. Added support for [[:<:]] and [[:>:]] as used in the BSD POSIX library to + mean "start of word" and "end of word", respectively, as a transition aid. + + +Release 8.33 28-May-2013 +-------------------------- + +A number of bugs are fixed, and some performance improvements have been made. +There are also some new features, of which these are the most important: + +. The behaviour of the backtracking verbs has been rationalized and + documented in more detail. + +. JIT now supports callouts and all of the backtracking verbs. + +. Unicode validation has been updated in the light of Unicode Corrigendum #9, + which points out that "non characters" are not "characters that may not + appear in Unicode strings" but rather "characters that are reserved for + internal use and have only local meaning". + +. (*LIMIT_MATCH=d) and (*LIMIT_RECURSION=d) have been added so that the + creator of a pattern can specify lower (but not higher) limits for the + matching process. + +. The PCRE_NEVER_UTF option is available to prevent pattern-writers from using + the (*UTF) feature, as this could be a security issue. + + +Release 8.32 30-November-2012 +----------------------------- + +This release fixes a number of bugs, but also has some new features. These are +the highlights: + +. There is now support for 32-bit character strings and UTF-32. Like the + 16-bit support, this is done by compiling a separate 32-bit library. + +. \X now matches a Unicode extended grapheme cluster. + +. Case-independent matching of Unicode characters that have more than one + "other case" now makes all three (or more) characters equivalent. This + applies, for example, to Greek Sigma, which has two lowercase versions. + +. Unicode character properties are updated to Unicode 6.2.0. + +. The EBCDIC support, which had decayed, has had a spring clean. + +. A number of JIT optimizations have been added, which give faster JIT + execution speed. In addition, a new direct interface to JIT execution is + available. This bypasses some of the sanity checks of pcre_exec() to give a + noticeable speed-up. + +. A number of issues in pcregrep have been fixed, making it more compatible + with GNU grep. In particular, --exclude and --include (and variants) apply + to all files now, not just those obtained from scanning a directory + recursively. In Windows environments, the default action for directories is + now "skip" instead of "read" (which provokes an error). + +. If the --only-matching (-o) option in pcregrep is specified multiple + times, each one causes appropriate output. For example, -o1 -o2 outputs the + substrings matched by the 1st and 2nd capturing parentheses. A separating + string can be specified by --om-separator (default empty). + +. When PCRE is built via Autotools using a version of gcc that has the + "visibility" feature, it is used to hide internal library functions that are + not part of the public API. + + +Release 8.31 06-July-2012 +------------------------- + +This is mainly a bug-fixing release, with a small number of developments: + +. The JIT compiler now supports partial matching and the (*MARK) and + (*COMMIT) verbs. + +. PCRE_INFO_MAXLOOKBEHIND can be used to find the longest lookbehind in a + pattern. + +. There should be a performance improvement when using the heap instead of the + stack for recursion. + +. pcregrep can now be linked with libedit as an alternative to libreadline. + +. pcregrep now has a --file-list option where the list of files to scan is + given as a file. + +. pcregrep now recognizes binary files and there are related options. + +. The Unicode tables have been updated to 6.1.0. + +As always, the full list of changes is in the ChangeLog file. + + +Release 8.30 04-February-2012 +----------------------------- + +Release 8.30 introduces a major new feature: support for 16-bit character +strings, compiled as a separate library. There are a few changes to the +8-bit library, in addition to some bug fixes. + +. The pcre_info() function, which has been obsolete for over 10 years, has + been removed. + +. When a compiled pattern was saved to a file and later reloaded on a host + with different endianness, PCRE used automatically to swap the bytes in some + of the data fields. With the advent of the 16-bit library, where more of this + swapping is needed, it is no longer done automatically. Instead, the bad + endianness is detected and a specific error is given. The user can then call + a new function called pcre_pattern_to_host_byte_order() (or an equivalent + 16-bit function) to do the swap. + +. In UTF-8 mode, the values 0xd800 to 0xdfff are not legal Unicode + code points and are now faulted. (They are the so-called "surrogates" + that are reserved for coding high values in UTF-16.) + + +Release 8.21 12-Dec-2011 +------------------------ + +This is almost entirely a bug-fix release. The only new feature is the ability +to obtain the size of the memory used by the JIT compiler. + + +Release 8.20 21-Oct-2011 +------------------------ + +The main change in this release is the inclusion of Zoltan Herczeg's +just-in-time compiler support, which can be accessed by building PCRE with +--enable-jit. Large performance benefits can be had in many situations. 8.20 +also fixes an unfortunate bug that was introduced in 8.13 as well as tidying up +a number of infelicities and differences from Perl. + + +Release 8.13 16-Aug-2011 +------------------------ + +This is mainly a bug-fix release. There has been a lot of internal refactoring. +The Unicode tables have been updated. The only new feature in the library is +the passing of *MARK information to callouts. Some additions have been made to +pcretest to make testing easier and more comprehensive. There is a new option +for pcregrep to adjust its internal buffer size. + + +Release 8.12 15-Jan-2011 +------------------------ + +This release fixes some bugs in pcregrep, one of which caused the tests to fail +on 64-bit big-endian systems. There are no changes to the code of the library. + + +Release 8.11 10-Dec-2010 +------------------------ + +A number of bugs in the library and in pcregrep have been fixed. As always, see +ChangeLog for details. The following are the non-bug-fix changes: + +. Added --match-limit and --recursion-limit to pcregrep. + +. Added an optional parentheses number to the -o and --only-matching options + of pcregrep. + +. Changed the way PCRE_PARTIAL_HARD affects the matching of $, \z, \Z, \b, and + \B. + +. Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a + bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD. + +. Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_ + START_OPTIMIZE option, which is now allowed at compile time + + +Release 8.10 25-Jun-2010 +------------------------ + +There are two major additions: support for (*MARK) and friends, and the option +PCRE_UCP, which changes the behaviour of \b, \d, \s, and \w (and their +opposites) so that they make use of Unicode properties. There are also a number +of lesser new features, and several bugs have been fixed. A new option, +--line-buffered, has been added to pcregrep, for use when it is connected to +pipes. + + +Release 8.02 19-Mar-2010 +------------------------ + +Another bug-fix release. + + +Release 8.01 19-Jan-2010 +------------------------ + +This is a bug-fix release. Several bugs in the code itself and some bugs and +infelicities in the build system have been fixed. + + +Release 8.00 19-Oct-09 +---------------------- + +Bugs have been fixed in the library and in pcregrep. There are also some +enhancements. Restrictions on patterns used for partial matching have been +removed, extra information is given for partial matches, the partial matching +process has been improved, and an option to make a partial match override a +full match is available. The "study" process has been enhanced by finding a +lower bound matching length. Groups with duplicate numbers may now have +duplicated names without the use of PCRE_DUPNAMES. However, they may not have +different names. The documentation has been revised to reflect these changes. +The version number has been expanded to 3 digits as it is clear that the rate +of change is not slowing down. + + +Release 7.9 11-Apr-09 +--------------------- + +Mostly bugfixes and tidies with just a couple of minor functional additions. + Release 7.8 05-Sep-08 --------------------- @@ -403,7 +733,7 @@ some of the new functionality in Perl 5. Another (I hope this is the last!) change has been made to the API for the pcre_compile() function. An additional argument has been added to make it possible to pass over a pointer to character tables built in the current -locale by pcre_maketables(). To use the default tables, this new arguement +locale by pcre_maketables(). To use the default tables, this new argument should be passed as NULL. IMPORTANT FOR THOSE UPGRADING FROM VERSION 2.05