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Diffstat (limited to 'ext/pcre/pcrelib/ChangeLog')
| -rw-r--r-- | ext/pcre/pcrelib/ChangeLog | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/ext/pcre/pcrelib/ChangeLog b/ext/pcre/pcrelib/ChangeLog index fe85d671d..1b016ecee 100644 --- a/ext/pcre/pcrelib/ChangeLog +++ b/ext/pcre/pcrelib/ChangeLog @@ -1,6 +1,170 @@ ChangeLog for PCRE ------------------ +Version 8.32 30-November-2012 +----------------------------- + +1. Improved JIT compiler optimizations for first character search and single + character iterators. + +2. Supporting IBM XL C compilers for PPC architectures in the JIT compiler. + Patch by Daniel Richard G. + +3. Single character iterator optimizations in the JIT compiler. + +4. Improved JIT compiler optimizations for character ranges. + +5. Rename the "leave" variable names to "quit" to improve WinCE compatibility. + Reported by Giuseppe D'Angelo. + +6. The PCRE_STARTLINE bit, indicating that a match can occur only at the start + of a line, was being set incorrectly in cases where .* appeared inside + atomic brackets at the start of a pattern, or where there was a subsequent + *PRUNE or *SKIP. + +7. Improved instruction cache flush for POWER/PowerPC. + Patch by Daniel Richard G. + +8. Fixed a number of issues in pcregrep, making it more compatible with GNU + grep: + + (a) There is now no limit to the number of patterns to be matched. + + (b) An error is given if a pattern is too long. + + (c) Multiple uses of --exclude, --exclude-dir, --include, and --include-dir + are now supported. + + (d) --exclude-from and --include-from (multiple use) have been added. + + (e) Exclusions and inclusions now apply to all files and directories, not + just to those obtained from scanning a directory recursively. + + (f) Multiple uses of -f and --file-list are now supported. + + (g) In a Windows environment, the default for -d has been changed from + "read" (the GNU grep default) to "skip", because otherwise the presence + of a directory in the file list provokes an error. + + (h) The documentation has been revised and clarified in places. + +9. Improve the matching speed of capturing brackets. + +10. Changed the meaning of \X so that it now matches a Unicode extended + grapheme cluster. + +11. Patch by Daniel Richard G to the autoconf files to add a macro for sorting + out POSIX threads when JIT support is configured. + +12. Added support for PCRE_STUDY_EXTRA_NEEDED. + +13. In the POSIX wrapper regcomp() function, setting re_nsub field in the preg + structure could go wrong in environments where size_t is not the same size + as int. + +14. Applied user-supplied patch to pcrecpp.cc to allow PCRE_NO_UTF8_CHECK to be + set. + +15. The EBCDIC support had decayed; later updates to the code had included + explicit references to (e.g.) \x0a instead of CHAR_LF. There has been a + general tidy up of EBCDIC-related issues, and the documentation was also + not quite right. There is now a test that can be run on ASCII systems to + check some of the EBCDIC-related things (but is it not a full test). + +16. The new PCRE_STUDY_EXTRA_NEEDED option is now used by pcregrep, resulting + in a small tidy to the code. + +17. Fix JIT tests when UTF is disabled and both 8 and 16 bit mode are enabled. + +18. 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). + +19. Improving the first n character searches. + +20. Turn case lists for horizontal and vertical white space into macros so that + they are defined only once. + +21. This set of changes together give more compatible Unicode case-folding + behaviour for characters that have more than one other case when UCP + support is available. + + (a) The Unicode property table now has offsets into a new table of sets of + three or more characters that are case-equivalent. The MultiStage2.py + script that generates these tables (the pcre_ucd.c file) now scans + CaseFolding.txt instead of UnicodeData.txt for character case + information. + + (b) The code for adding characters or ranges of characters to a character + class has been abstracted into a generalized function that also handles + case-independence. In UTF-mode with UCP support, this uses the new data + to handle characters with more than one other case. + + (c) A bug that is fixed as a result of (b) is that codepoints less than 256 + whose other case is greater than 256 are now correctly matched + caselessly. Previously, the high codepoint matched the low one, but not + vice versa. + + (d) The processing of \h, \H, \v, and \ in character classes now makes use + of the new class addition function, using character lists defined as + macros alongside the case definitions of 20 above. + + (e) Caseless back references now work with characters that have more than + one other case. + + (f) General caseless matching of characters with more than one other case + is supported. + +22. Unicode character properties were updated from Unicode 6.2.0 + +23. Improved CMake support under Windows. Patch by Daniel Richard G. + +24. Add support for 32-bit character strings, and UTF-32 + +25. Major JIT compiler update (code refactoring and bugfixing). + Experimental Sparc 32 support is added. + +26. Applied a modified version of Daniel Richard G's patch to create + pcre.h.generic and config.h.generic by "make" instead of in the + PrepareRelease script. + +27. Added a definition for CHAR_NULL (helpful for the z/OS port), and use it in + pcre_compile.c when checking for a zero character. + +28. Introducing a native interface for JIT. Through this interface, the compiled + machine code can be directly executed. The purpose of this interface is to + provide fast pattern matching, so several sanity checks are not performed. + However, feature tests are still performed. The new interface provides + 1.4x speedup compared to the old one. + +29. If pcre_exec() or pcre_dfa_exec() was called with a negative value for + the subject string length, the error given was PCRE_ERROR_BADOFFSET, which + was confusing. There is now a new error PCRE_ERROR_BADLENGTH for this case. + +30. In 8-bit UTF-8 mode, pcretest failed to give an error for data codepoints + greater than 0x7fffffff (which cannot be represented in UTF-8, even under + the "old" RFC 2279). Instead, it ended up passing a negative length to + pcre_exec(). + +31. Add support for GCC's visibility feature to hide internal functions. + +32. Running "pcretest -C pcre8" or "pcretest -C pcre16" gave a spurious error + "unknown -C option" after outputting 0 or 1. + +33. There is now support for generating a code coverage report for the test + suite in environments where gcc is the compiler and lcov is installed. This + is mainly for the benefit of the developers. + +34. If PCRE is built with --enable-valgrind, certain memory regions are marked + unaddressable using valgrind annotations, allowing valgrind to detect + invalid memory accesses. This is mainly for the benefit of the developers. + +25. (*UTF) can now be used to start a pattern in any of the three libraries. + +26. Give configure error if --enable-cpp but no C++ compiler found. + + Version 8.31 06-July-2012 ------------------------- |