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ChangeLog for PCRE |
ChangeLog for PCRE |
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Version 7.1 05-Mar-07 |
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1. Applied Bob Rossi and Daniel G's patches to convert the build system to one |
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that is more "standard", making use of automake and other autotools. There |
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is some re-arrangement of the files and adjustment of comments consequent |
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on this. |
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2. Part of the patch fixed a problem with the pcregrep tests. The test of -r |
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for recursive directory scanning broke on some systems because the files |
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are not scanned in any specific order and on different systems the order |
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was different. A call to "sort" has been inserted into RunGrepTest for the |
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approprate test as a short-term fix. In the longer term there may be an |
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alternative. |
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3. I had an email from Eric Raymond about problems translating some of PCRE's |
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man pages to HTML (despite the fact that I distribute HTML pages, some |
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people do their own conversions for various reasons). The problems |
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concerned the use of low-level troff macros .br and .in. I have therefore |
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removed all such uses from the man pages (some were redundant, some could |
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be replaced by .nf/.fi pairs). The 132html script that I use to generate |
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HTML has been updated to handle .nf/.fi and to complain if it encounters |
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.br or .in. |
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4. Updated comments in configure.ac that get placed in config.h.in and also |
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arranged for config.h to be included in the distribution, with the name |
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config.h.generic, for the benefit of those who have to compile without |
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Autotools (compare pcre.h, which is now distributed as pcre.h.generic). |
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5. Updated the support (such as it is) for Virtual Pascal, thanks to Stefan |
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Weber: (1) pcre_internal.h was missing some function renames; (2) updated |
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makevp.bat for the current PCRE, using the additional files !compile.txt, |
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!linklib.txt, and pcregexp.pas. |
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6. A Windows user reported a minor discrepancy with test 2, which turned out |
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to be caused by a trailing space on an input line that had got lost in his |
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copy. The trailing space was an accident, so I've just removed it. |
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7. Add -Wl,-R... flags in pcre-config.in for *BSD* systems, as I'm told |
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that is needed. |
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8. Mark ucp_table (in ucptable.h) and ucp_gentype (in pcre_ucp_searchfuncs.c) |
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as "const" (a) because they are and (b) because it helps the PHP |
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maintainers who have recently made a script to detect big data structures |
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in the php code that should be moved to the .rodata section. I remembered |
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to update Builducptable as well, so it won't revert if ucptable.h is ever |
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re-created. |
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9. Added some extra #ifdef SUPPORT_UTF8 conditionals into pcretest.c, |
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pcre_printint.src, pcre_compile.c, pcre_study.c, and pcre_tables.c, in |
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order to be able to cut out the UTF-8 tables in the latter when UTF-8 |
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support is not required. This saves 1.5-2K of code, which is important in |
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some applications. |
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Later: more #ifdefs are needed in pcre_ord2utf8.c and pcre_valid_utf8.c |
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so as not to refer to the tables, even though these functions will never be |
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called when UTF-8 support is disabled. Otherwise there are problems with a |
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shared library. |
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10. The emulated memmove() function in pcre_internal.h (provided for those |
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environments that have neither memmove() nor bcopy()) was defining its |
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arguments as char * instead of void *. |
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11. The script PrepareRelease is now distributed: it calls 132html, CleanTxt, |
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and Detrail to create the HTML documentation, the .txt form of the man |
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pages, and it removes trailing spaces from listed files. It also creates |
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pcre.h.generic and config.h.generic from pcre.h and config.h. In the latter |
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case, it wraps all the #defines with #ifndefs. This script should be run |
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before "make dist". |
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12. Fixed two fairly obscure bugs concerned with quantified caseless matching |
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with Unicode property support. |
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(a) For a maximizing quantifier, if the two different cases of the |
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character were of different lengths in their UTF-8 codings (there are |
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some cases like this - I found 11), and the matching function had to |
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back up over a mixture of the two cases, it incorrectly assumed they |
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were both the same length. |
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(b) When PCRE was configured to use the heap rather than the stack for |
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recursion during matching, it was not correctly preserving the data for |
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the other case of a UTF-8 character when checking ahead for a match |
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while processing a minimizing repeat. If the check also involved |
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matching a wide character, but failed, corruption could cause an |
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erroneous result when trying to check for a repeat of the original |
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character. |
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Version 7.0 19-Dec-06 |
Version 7.0 19-Dec-06 |
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--------------------- |
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