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revision 836 by ph10, Wed Dec 28 17:16:11 2011 UTC revision 913 by ph10, Sun Feb 12 17:06:59 2012 UTC
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1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 8.30  Version 8.31
5  ------------  -----------------------------
6    
7    1.  Fixing a wrong JIT test case and some compiler warnings.
8    
9    2.  Removed a bashism from the RunTest script.
10    
11    3.  Add a cast to pcre_exec.c to fix the warning "unary minus operator applied
12        to unsigned type, result still unsigned" that was given by an MS compiler
13        on encountering the code "-sizeof(xxx)".
14    
15    
16    Version 8.30 04-February-2012
17    -----------------------------
18    
19  1.  Renamed "isnumber" as "is_a_number" because in some Mac environments this  1.  Renamed "isnumber" as "is_a_number" because in some Mac environments this
20      name is defined in ctype.h.      name is defined in ctype.h.
21    
22  2.  Fixed a bug in the code for calculating the fixed length of lookbehind  2.  Fixed a bug in fixed-length calculation for lookbehinds that would show up
23      assertions.      only in quite long subpatterns.
24    
25  3.  Removed the function pcre_info(), which has been obsolete and deprecated  3.  Removed the function pcre_info(), which has been obsolete and deprecated
26      since it was replaced by pcre_fullinfo() in February 2000.      since it was replaced by pcre_fullinfo() in February 2000.
27    
28  4.  For a non-anchored pattern, if (*SKIP) was given with a name that did not  4.  For a non-anchored pattern, if (*SKIP) was given with a name that did not
29      match a (*MARK), and the match failed at the start of the subject, a      match a (*MARK), and the match failed at the start of the subject, a
30      reference to memory before the start of the subject could occur. This bug      reference to memory before the start of the subject could occur. This bug
31      was introduced by fix 17 of release 8.21.      was introduced by fix 17 of release 8.21.
32    
33  5.  A reference to an unset group with zero minimum repetition was giving  5.  A reference to an unset group with zero minimum repetition was giving
34      totally wrong answers (in non-JavaScript-compatibility mode). For example,      totally wrong answers (in non-JavaScript-compatibility mode). For example,
35      /(another)?(\1?)test/ matched against "hello world test". This bug was      /(another)?(\1?)test/ matched against "hello world test". This bug was
36      introduced in release 8.13.      introduced in release 8.13.
37    
38  6.  Add support for 16-bit character strings (a large amount of work involving  6.  Add support for 16-bit character strings (a large amount of work involving
39      many changes and refactorings).      many changes and refactorings).
40    
41    7.  RunGrepTest failed on msys because \r\n was replaced by whitespace when the
42        command "pattern=`printf 'xxx\r\njkl'`" was run. The pattern is now taken
43        from a file.
44    
45    8.  Ovector size of 2 is also supported by JIT based pcre_exec (the ovector size
46        rounding is not applied in this particular case).
47    
48    9.  The invalid Unicode surrogate codepoints U+D800 to U+DFFF are now rejected
49        if they appear, or are escaped, in patterns.
50    
51    10. Get rid of a number of -Wunused-but-set-variable warnings.
52    
53    11. The pattern /(?=(*:x))(q|)/ matches an empty string, and returns the mark
54        "x". The similar pattern /(?=(*:x))((*:y)q|)/ did not return a mark at all.
55        Oddly, Perl behaves the same way. PCRE has been fixed so that this pattern
56        also returns the mark "x". This bug applied to capturing parentheses,
57        non-capturing parentheses, and atomic parentheses. It also applied to some
58        assertions.
59    
60    12. Stephen Kelly's patch to CMakeLists.txt allows it to parse the version
61        information out of configure.ac instead of relying on pcre.h.generic, which
62        is not stored in the repository.
63    
64    13. Applied Dmitry V. Levin's patch for a more portable method for linking with
65        -lreadline.
66    
67    14. ZH added PCRE_CONFIG_JITTARGET; added its output to pcretest -C.
68    
69    15. Applied Graycode's patch to put the top-level frame on the stack rather
70        than the heap when not using the stack for recursion. This gives a
71        performance improvement in many cases when recursion is not deep.
72    
73    16. Experimental code added to "pcretest -C" to output the stack frame size.
74    
75    
76  Version 8.21 12-Dec-2011  Version 8.21 12-Dec-2011
77  ------------------------  ------------------------

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