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revision 296 by ph10, Tue Jan 1 20:09:30 2008 UTC revision 324 by ph10, Fri Mar 7 19:48:32 2008 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 7.5 31-Dec-07  Version 7.7 05-Mar-08
5    ---------------------
6    
7    1.  Applied Craig's patch to sort out a long long problem: "If we can't convert
8        a string to a long long, pretend we don't even have a long long." This is
9        done by checking for the strtoq, strtoll, and _strtoi64 functions.
10    
11    2.  Applied Craig's patch to pcrecpp.cc to restore ABI compatibility with
12        pre-7.6 versions, which defined a global no_arg variable instead of putting
13        it in the RE class.
14    
15    3.  Remove a line of dead code, identified by coverity and reported by Nuno
16        Lopes.
17    
18    4.  Fixed two related pcregrep bugs involving -r with --include or --exclude:
19    
20        (1) The include/exclude patterns were being applied to the whole pathnames
21            of files, instead of just to the final components.
22    
23        (2) If there was more than one level of directory, the subdirectories were
24            skipped unless they satisfied the include/exclude conditions. This is
25            inconsistent with GNU grep (and could even be seen as contrary to the
26            pcregrep specification - which I improved to make it absolutely clear).
27            The action now is always to scan all levels of directory, and just
28            apply the include/exclude patterns to regular files.
29    
30    
31    Version 7.6 28-Jan-08
32    ---------------------
33    
34    1.  A character class containing a very large number of characters with
35        codepoints greater than 255 (in UTF-8 mode, of course) caused a buffer
36        overflow.
37    
38    2.  Patch to cut out the "long long" test in pcrecpp_unittest when
39        HAVE_LONG_LONG is not defined.
40    
41    3.  Applied Christian Ehrlicher's patch to update the CMake build files to
42        bring them up to date and include new features. This patch includes:
43    
44        - Fixed PH's badly added libz and libbz2 support.
45        - Fixed a problem with static linking.
46        - Added pcredemo. [But later removed - see 7 below.]
47        - Fixed dftables problem and added an option.
48        - Added a number of HAVE_XXX tests, including HAVE_WINDOWS_H and
49            HAVE_LONG_LONG.
50        - Added readline support for pcretest.
51        - Added an listing of the option settings after cmake has run.
52    
53    4.  A user submitted a patch to Makefile that makes it easy to create
54        "pcre.dll" under mingw when using Configure/Make. I added stuff to
55        Makefile.am that cause it to include this special target, without
56        affecting anything else. Note that the same mingw target plus all
57        the other distribution libraries and programs are now supported
58        when configuring with CMake (see 6 below) instead of with
59        Configure/Make.
60    
61    5.  Applied Craig's patch that moves no_arg into the RE class in the C++ code.
62        This is an attempt to solve the reported problem "pcrecpp::no_arg is not
63        exported in the Windows port". It has not yet been confirmed that the patch
64        solves the problem, but it does no harm.
65    
66    6.  Applied Sheri's patch to CMakeLists.txt to add NON_STANDARD_LIB_PREFIX and
67        NON_STANDARD_LIB_SUFFIX for dll names built with mingw when configured
68        with CMake, and also correct the comment about stack recursion.
69    
70    7.  Remove the automatic building of pcredemo from the ./configure system and
71        from CMakeLists.txt. The whole idea of pcredemo.c is that it is an example
72        of a program that users should build themselves after PCRE is installed, so
73        building it automatically is not really right. What is more, it gave
74        trouble in some build environments.
75    
76    8.  Further tidies to CMakeLists.txt from Sheri and Christian.
77    
78    
79    Version 7.5 10-Jan-08
80  ---------------------  ---------------------
81    
82  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 31-Dec-07 Line 174  Version 7.5 31-Dec-07
174    
175  20. In pcrecpp.cc, the variable 'count' was incremented twice in  20. In pcrecpp.cc, the variable 'count' was incremented twice in
176      RE::GlobalReplace(). As a result, the number of replacements returned was      RE::GlobalReplace(). As a result, the number of replacements returned was
177      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
178        later patch that removed the other one (the right fix) and added unit tests
179        that check the return values (which was not done before).
180    
181  21. Several CMake things:  21. Several CMake things:
182    
# Line 110  Version 7.5 31-Dec-07 Line 187  Version 7.5 31-Dec-07
187          linked with the newly-built libraries, not previously installed ones.          linked with the newly-built libraries, not previously installed ones.
188    
189      (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.      (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.
190    
191  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.*
192      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
193      UTF-8 newline character). The key issue is that the pattern starts .*;      UTF-8 newline character). The key issue is that the pattern starts .*;
194      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
195      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
196      checking that the new position followed a newline. It was not taking      checking that the new position followed a newline. It was not taking
197      account of UTF-8 characters correctly.      account of UTF-8 characters correctly.
198    
199  23. PCRE was behaving differently from Perl in the way it recognized POSIX  23. PCRE was behaving differently from Perl in the way it recognized POSIX
200      character classes. PCRE was not treating the sequence [:...:] as a      character classes. PCRE was not treating the sequence [:...:] as a
201      character class unless the ... were all letters. Perl, however, seems to      character class unless the ... were all letters. Perl, however, seems to
202      allow any characters between [: and :], though of course it rejects as      allow any characters between [: and :], though of course it rejects as
203      unknown any "names" that contain non-letters, because all the known class      unknown any "names" that contain non-letters, because all the known class
204      names consist only of letters. Thus, Perl gives an error for [[:1234:]],      names consist only of letters. Thus, Perl gives an error for [[:1234:]],
205      for example, whereas PCRE did not - it did not recognize a POSIX character      for example, whereas PCRE did not - it did not recognize a POSIX character
206      class. This seemed a bit dangerous, so the code has been changed to be      class. This seemed a bit dangerous, so the code has been changed to be
207      closer to Perl. The behaviour is not identical to Perl, because PCRE will      closer to Perl. The behaviour is not identical to Perl, because PCRE will
208      diagnose an unknown class for, for example, [[:l\ower:]] where Perl will      diagnose an unknown class for, for example, [[:l\ower:]] where Perl will
209      treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where      treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where
210      Perl does, and where it didn't before.      Perl does, and where it didn't before.
211    
212  24. Rewrite so as to remove the single use of %n from pcregrep because in some  24. Rewrite so as to remove the single use of %n from pcregrep because in some
213      Windows environments %n is disabled by default.      Windows environments %n is disabled by default.
214    

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