--- embedaddon/pcre/ChangeLog 2012/02/21 23:05:51 1.1.1.1
+++ embedaddon/pcre/ChangeLog 2012/10/09 09:19:17 1.1.1.3
@@ -1,6 +1,219 @@
ChangeLog for PCRE
------------------
+Version 8.31 06-July-2012
+-------------------------
+
+1. Fixing a wrong JIT test case and some compiler warnings.
+
+2. Removed a bashism from the RunTest script.
+
+3. Add a cast to pcre_exec.c to fix the warning "unary minus operator applied
+ to unsigned type, result still unsigned" that was given by an MS compiler
+ on encountering the code "-sizeof(xxx)".
+
+4. Partial matching support is added to the JIT compiler.
+
+5. Fixed several bugs concerned with partial matching of items that consist
+ of more than one character:
+
+ (a) /^(..)\1/ did not partially match "aba" because checking references was
+ done on an "all or nothing" basis. This also applied to repeated
+ references.
+
+ (b) \R did not give a hard partial match if \r was found at the end of the
+ subject.
+
+ (c) \X did not give a hard partial match after matching one or more
+ characters at the end of the subject.
+
+ (d) When newline was set to CRLF, a pattern such as /a$/ did not recognize
+ a partial match for the string "\r".
+
+ (e) When newline was set to CRLF, the metacharacter "." did not recognize
+ a partial match for a CR character at the end of the subject string.
+
+6. If JIT is requested using /S++ or -s++ (instead of just /S+ or -s+) when
+ running pcretest, the text "(JIT)" added to the output whenever JIT is
+ actually used to run the match.
+
+7. Individual JIT compile options can be set in pcretest by following -s+[+]
+ or /S+[+] with a digit between 1 and 7.
+
+8. OP_NOT now supports any UTF character not just single-byte ones.
+
+9. (*MARK) control verb is now supported by the JIT compiler.
+
+10. The command "./RunTest list" lists the available tests without actually
+ running any of them. (Because I keep forgetting what they all are.)
+
+11. Add PCRE_INFO_MAXLOOKBEHIND.
+
+12. Applied a (slightly modified) user-supplied patch that improves performance
+ when the heap is used for recursion (compiled with --disable-stack-for-
+ recursion). Instead of malloc and free for each heap frame each time a
+ logical recursion happens, frames are retained on a chain and re-used where
+ possible. This sometimes gives as much as 30% improvement.
+
+13. As documented, (*COMMIT) is now confined to within a recursive subpattern
+ call.
+
+14. As documented, (*COMMIT) is now confined to within a positive assertion.
+
+15. It is now possible to link pcretest with libedit as an alternative to
+ libreadline.
+
+16. (*COMMIT) control verb is now supported by the JIT compiler.
+
+17. The Unicode data tables have been updated to Unicode 6.1.0.
+
+18. Added --file-list option to pcregrep.
+
+19. Added binary file support to pcregrep, including the -a, --binary-files,
+ -I, and --text options.
+
+20. The madvise function is renamed for posix_madvise for QNX compatibility
+ reasons. Fixed by Giuseppe D'Angelo.
+
+21. Fixed a bug for backward assertions with REVERSE 0 in the JIT compiler.
+
+22. Changed the option for creating symbolic links for 16-bit man pages from
+ -s to -sf so that re-installing does not cause issues.
+
+23. Support PCRE_NO_START_OPTIMIZE in JIT as (*MARK) support requires it.
+
+24. Fixed a very old bug in pcretest that caused errors with restarted DFA
+ matches in certain environments (the workspace was not being correctly
+ retained). Also added to pcre_dfa_exec() a simple plausibility check on
+ some of the workspace data at the beginning of a restart.
+
+25. \s*\R was auto-possessifying the \s* when it should not, whereas \S*\R
+ was not doing so when it should - probably a typo introduced by SVN 528
+ (change 8.10/14).
+
+26. When PCRE_UCP was not set, \w+\x{c4} was incorrectly auto-possessifying the
+ \w+ when the character tables indicated that \x{c4} was a word character.
+ There were several related cases, all because the tests for doing a table
+ lookup were testing for characters less than 127 instead of 255.
+
+27. If a pattern contains capturing parentheses that are not used in a match,
+ their slots in the ovector are set to -1. For those that are higher than
+ any matched groups, this happens at the end of processing. In the case when
+ there were back references that the ovector was too small to contain
+ (causing temporary malloc'd memory to be used during matching), and the
+ highest capturing number was not used, memory off the end of the ovector
+ was incorrectly being set to -1. (It was using the size of the temporary
+ memory instead of the true size.)
+
+28. To catch bugs like 27 using valgrind, when pcretest is asked to specify an
+ ovector size, it uses memory at the end of the block that it has got.
+
+29. Check for an overlong MARK name and give an error at compile time. The
+ limit is 255 for the 8-bit library and 65535 for the 16-bit library.
+
+30. JIT compiler update.
+
+31. JIT is now supported on jailbroken iOS devices. Thanks for Ruiger
+ Rill for the patch.
+
+32. Put spaces around SLJIT_PRINT_D in the JIT compiler. Required by CXX11.
+
+33. Variable renamings in the PCRE-JIT compiler. No functionality change.
+
+34. Fixed typos in pcregrep: in two places there was SUPPORT_LIBZ2 instead of
+ SUPPORT_LIBBZ2. This caused a build problem when bzip2 but not gzip (zlib)
+ was enabled.
+
+35. Improve JIT code generation for greedy plus quantifier.
+
+36. When /((?:a?)*)*c/ or /((?>a?)*)*c/ was matched against "aac", it set group
+ 1 to "aa" instead of to an empty string. The bug affected repeated groups
+ that could potentially match an empty string.
+
+37. Optimizing single character iterators in JIT.
+
+38. Wide characters specified with \uxxxx in JavaScript mode are now subject to
+ the same checks as \x{...} characters in non-JavaScript mode. Specifically,
+ codepoints that are too big for the mode are faulted, and in a UTF mode,
+ disallowed codepoints are also faulted.
+
+39. If PCRE was compiled with UTF support, in three places in the DFA
+ matcher there was code that should only have been obeyed in UTF mode, but
+ was being obeyed unconditionally. In 8-bit mode this could cause incorrect
+ processing when bytes with values greater than 127 were present. In 16-bit
+ mode the bug would be provoked by values in the range 0xfc00 to 0xdc00. In
+ both cases the values are those that cannot be the first data item in a UTF
+ character. The three items that might have provoked this were recursions,
+ possessively repeated groups, and atomic groups.
+
+40. Ensure that libpcre is explicitly listed in the link commands for pcretest
+ and pcregrep, because some OS require shared objects to be explicitly
+ passed to ld, causing the link step to fail if they are not.
+
+41. There were two incorrect #ifdefs in pcre_study.c, meaning that, in 16-bit
+ mode, patterns that started with \h* or \R* might be incorrectly matched.
+
+
+Version 8.30 04-February-2012
+-----------------------------
+
+1. Renamed "isnumber" as "is_a_number" because in some Mac environments this
+ name is defined in ctype.h.
+
+2. Fixed a bug in fixed-length calculation for lookbehinds that would show up
+ only in quite long subpatterns.
+
+3. Removed the function pcre_info(), which has been obsolete and deprecated
+ since it was replaced by pcre_fullinfo() in February 2000.
+
+4. For a non-anchored pattern, if (*SKIP) was given with a name that did not
+ match a (*MARK), and the match failed at the start of the subject, a
+ reference to memory before the start of the subject could occur. This bug
+ was introduced by fix 17 of release 8.21.
+
+5. A reference to an unset group with zero minimum repetition was giving
+ totally wrong answers (in non-JavaScript-compatibility mode). For example,
+ /(another)?(\1?)test/ matched against "hello world test". This bug was
+ introduced in release 8.13.
+
+6. Add support for 16-bit character strings (a large amount of work involving
+ many changes and refactorings).
+
+7. RunGrepTest failed on msys because \r\n was replaced by whitespace when the
+ command "pattern=`printf 'xxx\r\njkl'`" was run. The pattern is now taken
+ from a file.
+
+8. Ovector size of 2 is also supported by JIT based pcre_exec (the ovector size
+ rounding is not applied in this particular case).
+
+9. The invalid Unicode surrogate codepoints U+D800 to U+DFFF are now rejected
+ if they appear, or are escaped, in patterns.
+
+10. Get rid of a number of -Wunused-but-set-variable warnings.
+
+11. The pattern /(?=(*:x))(q|)/ matches an empty string, and returns the mark
+ "x". The similar pattern /(?=(*:x))((*:y)q|)/ did not return a mark at all.
+ Oddly, Perl behaves the same way. PCRE has been fixed so that this pattern
+ also returns the mark "x". This bug applied to capturing parentheses,
+ non-capturing parentheses, and atomic parentheses. It also applied to some
+ assertions.
+
+12. Stephen Kelly's patch to CMakeLists.txt allows it to parse the version
+ information out of configure.ac instead of relying on pcre.h.generic, which
+ is not stored in the repository.
+
+13. Applied Dmitry V. Levin's patch for a more portable method for linking with
+ -lreadline.
+
+14. ZH added PCRE_CONFIG_JITTARGET; added its output to pcretest -C.
+
+15. Applied Graycode's patch to put the top-level frame on the stack rather
+ than the heap when not using the stack for recursion. This gives a
+ performance improvement in many cases when recursion is not deep.
+
+16. Experimental code added to "pcretest -C" to output the stack frame size.
+
+
Version 8.21 12-Dec-2011
------------------------