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revision 400 by ph10, Sat Mar 21 16:59:40 2009 UTC revision 418 by ph10, Fri Apr 24 09:17:18 2009 UTC
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1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 7.9 xx-xxx-09  Version 8.00 ??-???-??
5    ----------------------
6    
7    1.  The table for translating pcre_compile() error codes into POSIX error codes
8        was out-of-date, and there was no check on the pcre_compile() error code
9        being within the table. This could lead to an OK return being given in
10        error.
11    
12    
13    Version 7.9 11-Apr-09
14  ---------------------  ---------------------
15    
16  1.  When building with support for bzlib/zlib (pcregrep) and/or readline  1.  When building with support for bzlib/zlib (pcregrep) and/or readline
# Line 17  Version 7.9 xx-xxx-09 Line 26  Version 7.9 xx-xxx-09
26      but BOOL is not.      but BOOL is not.
27    
28  3.  The pcre_config() function was treating the PCRE_MATCH_LIMIT and  3.  The pcre_config() function was treating the PCRE_MATCH_LIMIT and
29      PCRE_MATCH_LIMIT_RETURSION values as ints, when they should be long ints.      PCRE_MATCH_LIMIT_RECURSION values as ints, when they should be long ints.
30    
31  4.  The pcregrep documentation said spaces were inserted as well as colons (or  4.  The pcregrep documentation said spaces were inserted as well as colons (or
32      hyphens) following file names and line numbers when outputting matching      hyphens) following file names and line numbers when outputting matching
# Line 42  Version 7.9 xx-xxx-09 Line 51  Version 7.9 xx-xxx-09
51      correctly handled. The rule now is that both the assertion and what follows      correctly handled. The rule now is that both the assertion and what follows
52      in the first alternative must satisfy the test.      in the first alternative must satisfy the test.
53    
54  9.  If auto-callout was enabled in a pattern with a conditional group whose  9.  If auto-callout was enabled in a pattern with a conditional group whose
55      condition was an assertion, PCRE could crash during matching, both with      condition was an assertion, PCRE could crash during matching, both with
56      pcre_exec() and pcre_dfa_exec().      pcre_exec() and pcre_dfa_exec().
57    
# Line 64  Version 7.9 xx-xxx-09 Line 73  Version 7.9 xx-xxx-09
73  17. Implemented support for UTF-8 encoding in EBCDIC environments, a patch  17. Implemented support for UTF-8 encoding in EBCDIC environments, a patch
74      from Martin Jerabek that uses macro names for all relevant character and      from Martin Jerabek that uses macro names for all relevant character and
75      string constants.      string constants.
76    
77  18. Added to pcre_internal.h two configuration checks: (a) If both EBCDIC and  18. Added to pcre_internal.h two configuration checks: (a) If both EBCDIC and
78      SUPPORT_UTF8 are set, give an error; (b) If SUPPORT_UCP is set without      SUPPORT_UTF8 are set, give an error; (b) If SUPPORT_UCP is set without
79      SUPPORT_UTF8, define SUPPORT_UTF8. The "configure" script handles both of      SUPPORT_UTF8, define SUPPORT_UTF8. The "configure" script handles both of
80      these, but not everybody uses configure.      these, but not everybody uses configure.
81    
82  19. A conditional group that had only one branch was not being correctly  19. A conditional group that had only one branch was not being correctly
83      recognized as an item that could match an empty string. This meant that an      recognized as an item that could match an empty string. This meant that an
84      enclosing group might also not be so recognized, causing infinite looping      enclosing group might also not be so recognized, causing infinite looping
85      (and probably a segfault) for patterns such as ^"((?(?=[a])[^"])|b)*"$      (and probably a segfault) for patterns such as ^"((?(?=[a])[^"])|b)*"$
86      with the subject "ab", where knowledge that the repeated group can match      with the subject "ab", where knowledge that the repeated group can match
87      nothing is needed in order to break the loop.      nothing is needed in order to break the loop.
88    
89  20. If a pattern that was compiled with callouts was matched using pcre_dfa_  20. If a pattern that was compiled with callouts was matched using pcre_dfa_
90      exec(), but without supplying a callout function, matching went wrong.      exec(), but without supplying a callout function, matching went wrong.
91    
92  21. If PCRE_ERROR_MATCHLIMIT occurred during a recursion, there was a memory  21. If PCRE_ERROR_MATCHLIMIT occurred during a recursion, there was a memory
93      leak if the size of the offset vector was greater than 30. When the vector      leak if the size of the offset vector was greater than 30. When the vector
94      is smaller, the saved offsets during recursion go onto a local stack      is smaller, the saved offsets during recursion go onto a local stack
95      vector, but for larger vectors malloc() is used. It was failing to free      vector, but for larger vectors malloc() is used. It was failing to free
96      when the recursion yielded PCRE_ERROR_MATCH_LIMIT (or any other "abnormal"      when the recursion yielded PCRE_ERROR_MATCH_LIMIT (or any other "abnormal"
97      error, in fact).      error, in fact).
98    
99    22. There was a missing #ifdef SUPPORT_UTF8 round one of the variables in the
100        heapframe that is used only when UTF-8 support is enabled. This caused no
101        problem, but was untidy.
102    
103    23. Steven Van Ingelgem's patch to CMakeLists.txt to change the name
104        CMAKE_BINARY_DIR to PROJECT_BINARY_DIR so that it works when PCRE is
105        included within another project.
106    
107    24. Steven Van Ingelgem's patches to add more options to the CMake support,
108        slightly modified by me:
109    
110          (a) PCRE_BUILD_TESTS can be set OFF not to build the tests, including
111              not building pcregrep.
112    
113          (b) PCRE_BUILD_PCREGREP can be see OFF not to build pcregrep, but only
114              if PCRE_BUILD_TESTS is also set OFF, because the tests use pcregrep.
115    
116    25. Forward references, both numeric and by name, in patterns that made use of
117        duplicate group numbers, could behave incorrectly or give incorrect errors,
118        because when scanning forward to find the reference group, PCRE was not
119        taking into account the duplicate group numbers. A pattern such as
120        ^X(?3)(a)(?|(b)|(q))(Y) is an example.
121    
122    26. Changed a few more instances of "const unsigned char *" to USPTR, making
123        the feature of a custom pointer more persuasive (as requested by a user).
124    
125    27. Wrapped the definitions of fileno and isatty for Windows, which appear in
126        pcretest.c, inside #ifndefs, because it seems they are sometimes already
127        pre-defined.
128    
129    28. Added support for (*UTF8) at the start of a pattern.
130    
131    29. Arrange for flags added by the "release type" setting in CMake to be shown
132        in the configuration summary.
133    
134    
135  Version 7.8 05-Sep-08  Version 7.8 05-Sep-08
136  ---------------------  ---------------------

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