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revision 289 by ph10, Sun Dec 23 12:17:20 2007 UTC revision 309 by ph10, Mon Jan 21 15:22:09 2008 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 7.5 23-Dec-07  Version 7.6 21-Jan-08
5    ---------------------
6    
7    1.  A character class containing a very large number of characters with
8        codepoints greater than 255 (in UTF-8 mode, of course) caused a buffer
9        overflow.
10    
11    2.  Patch to cut out the "long long" test in pcrecpp_unittest when
12        HAVE_LONG_LONG is not defined.
13    
14    3.  Applied Christian Ehrlicher's patch to update the CMake build files to
15        bring them up to date and include new features. This patch includes:
16    
17        - Fixed PH's badly added libz and libbz2 support.
18        - Fixed a problem with static linking.
19        - Added pcredemo.
20        - Fixed dftables problem and added an option.
21        - Added a number of HAVE_XXX tests, including HAVE_WINDOWS_H and
22            HAVE_LONG_LONG.
23        - Added readline support for pcretest.
24        - Added an listing of the option settings after cmake has run.
25    
26    4.  A user submitted a patch to Makefile that makes it easy to created a dll
27        under mingw. I added stuff to Makefile.am that cause it to include this
28        special target, without affecting anything else.
29    
30    5.  Applied Craig's patch that moves no_arg into the RE class in the C++ code.
31        This is an attempt to solve the reported problem "pcrecpp::no_arg is not
32        exported in the Windows port". It has not yet been confirmed that the patch
33        solves the problem, but it does no harm.
34    
35    
36    Version 7.5 10-Jan-08
37  ---------------------  ---------------------
38    
39  1.  Applied a patch from Craig: "This patch makes it possible to 'ignore'  1.  Applied a patch from Craig: "This patch makes it possible to 'ignore'
# Line 99  Version 7.5 23-Dec-07 Line 131  Version 7.5 23-Dec-07
131    
132  20. In pcrecpp.cc, the variable 'count' was incremented twice in  20. In pcrecpp.cc, the variable 'count' was incremented twice in
133      RE::GlobalReplace(). As a result, the number of replacements returned was      RE::GlobalReplace(). As a result, the number of replacements returned was
134      double what it should be. I have removed one of the increments.      double what it should be. I removed one of the increments, but Craig sent a
135        later patch that removed the other one (the right fix) and added unit tests
136        that check the return values (which was not done before).
137    
138    21. Several CMake things:
139    
140        (1) Arranged that, when cmake is used on Unix, the libraries end up with
141            the names libpcre and libpcreposix, not just pcre and pcreposix.
142    
143        (2) The above change means that pcretest and pcregrep are now correctly
144            linked with the newly-built libraries, not previously installed ones.
145    
146        (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.
147    
148    22. In UTF-8 mode, with newline set to "any", a pattern such as .*a.*=.b.*
149        crashed when matching a string such as a\x{2029}b (note that \x{2029} is a
150        UTF-8 newline character). The key issue is that the pattern starts .*;
151        this means that the match must be either at the beginning, or after a
152        newline. The bug was in the code for advancing after a failed match and
153        checking that the new position followed a newline. It was not taking
154        account of UTF-8 characters correctly.
155    
156    23. PCRE was behaving differently from Perl in the way it recognized POSIX
157        character classes. PCRE was not treating the sequence [:...:] as a
158        character class unless the ... were all letters. Perl, however, seems to
159        allow any characters between [: and :], though of course it rejects as
160        unknown any "names" that contain non-letters, because all the known class
161        names consist only of letters. Thus, Perl gives an error for [[:1234:]],
162        for example, whereas PCRE did not - it did not recognize a POSIX character
163        class. This seemed a bit dangerous, so the code has been changed to be
164        closer to Perl. The behaviour is not identical to Perl, because PCRE will
165        diagnose an unknown class for, for example, [[:l\ower:]] where Perl will
166        treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where
167        Perl does, and where it didn't before.
168    
169    24. Rewrite so as to remove the single use of %n from pcregrep because in some
170        Windows environments %n is disabled by default.
171    
172    
173  Version 7.4 21-Sep-07  Version 7.4 21-Sep-07

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