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revision 294 by ph10, Sat Dec 29 16:55:59 2007 UTC revision 312 by ph10, Wed Jan 23 18:02:23 2008 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 7.5 29-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. [But later removed - see 7 below.]
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    6.  Applied Sheri's patch to CMakeLists.txt to add NON_STANDARD_LIB_PREFIX and
36        NON_STANDARD_LIB_SUFFIX and correct the comment about stack recursion.
37    
38    7.  Remove the automatic building of pcredemo from the ./configure system and
39        from CMakeLists.txt. The whole idea of pcredemo.c is that it is an example
40        of a program that users should build themselves after PCRE is installed, so
41        building it automatically is not really right. What is more, it gave
42        trouble in some build environments.
43    
44    
45    Version 7.5 10-Jan-08
46  ---------------------  ---------------------
47    
48  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 29-Dec-07 Line 140  Version 7.5 29-Dec-07
140    
141  20. In pcrecpp.cc, the variable 'count' was incremented twice in  20. In pcrecpp.cc, the variable 'count' was incremented twice in
142      RE::GlobalReplace(). As a result, the number of replacements returned was      RE::GlobalReplace(). As a result, the number of replacements returned was
143      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
144        later patch that removed the other one (the right fix) and added unit tests
145        that check the return values (which was not done before).
146    
147  21. Several CMake things:  21. Several CMake things:
148    
# Line 110  Version 7.5 29-Dec-07 Line 153  Version 7.5 29-Dec-07
153          linked with the newly-built libraries, not previously installed ones.          linked with the newly-built libraries, not previously installed ones.
154    
155      (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.      (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.
156    
157  22. In UTF-8 mode, with newline set to "any", a pattern such as .*a.*=.b.*  22. In UTF-8 mode, with newline set to "any", a pattern such as .*a.*=.b.*
158      crashed when matching a string such as a\x{2029}b (note that \x{2029} is a      crashed when matching a string such as a\x{2029}b (note that \x{2029} is a
159      UTF-8 newline character). The key issue is that the pattern starts .*;      UTF-8 newline character). The key issue is that the pattern starts .*;
160      this means that the match must be either at the beginning, or after a      this means that the match must be either at the beginning, or after a
161      newline. The bug was in the code for advancing after a failed match and      newline. The bug was in the code for advancing after a failed match and
162      checking that the new position followed a newline. It was not taking      checking that the new position followed a newline. It was not taking
163      account of UTF-8 characters correctly.      account of UTF-8 characters correctly.
164    
165    23. PCRE was behaving differently from Perl in the way it recognized POSIX
166        character classes. PCRE was not treating the sequence [:...:] as a
167        character class unless the ... were all letters. Perl, however, seems to
168        allow any characters between [: and :], though of course it rejects as
169        unknown any "names" that contain non-letters, because all the known class
170        names consist only of letters. Thus, Perl gives an error for [[:1234:]],
171        for example, whereas PCRE did not - it did not recognize a POSIX character
172        class. This seemed a bit dangerous, so the code has been changed to be
173        closer to Perl. The behaviour is not identical to Perl, because PCRE will
174        diagnose an unknown class for, for example, [[:l\ower:]] where Perl will
175        treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where
176        Perl does, and where it didn't before.
177    
178    24. Rewrite so as to remove the single use of %n from pcregrep because in some
179        Windows environments %n is disabled by default.
180    
181    
182  Version 7.4 21-Sep-07  Version 7.4 21-Sep-07
183  ---------------------  ---------------------

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