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revision 289 by ph10, Sun Dec 23 12:17:20 2007 UTC revision 323 by ph10, Wed Mar 5 17:23:42 2008 UTC
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1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 7.5 23-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    
19    Version 7.6 28-Jan-08
20    ---------------------
21    
22    1.  A character class containing a very large number of characters with
23        codepoints greater than 255 (in UTF-8 mode, of course) caused a buffer
24        overflow.
25    
26    2.  Patch to cut out the "long long" test in pcrecpp_unittest when
27        HAVE_LONG_LONG is not defined.
28    
29    3.  Applied Christian Ehrlicher's patch to update the CMake build files to
30        bring them up to date and include new features. This patch includes:
31    
32        - Fixed PH's badly added libz and libbz2 support.
33        - Fixed a problem with static linking.
34        - Added pcredemo. [But later removed - see 7 below.]
35        - Fixed dftables problem and added an option.
36        - Added a number of HAVE_XXX tests, including HAVE_WINDOWS_H and
37            HAVE_LONG_LONG.
38        - Added readline support for pcretest.
39        - Added an listing of the option settings after cmake has run.
40    
41    4.  A user submitted a patch to Makefile that makes it easy to create
42        "pcre.dll" under mingw when using Configure/Make. I added stuff to
43        Makefile.am that cause it to include this special target, without
44        affecting anything else. Note that the same mingw target plus all
45        the other distribution libraries and programs are now supported
46        when configuring with CMake (see 6 below) instead of with
47        Configure/Make.
48    
49    5.  Applied Craig's patch that moves no_arg into the RE class in the C++ code.
50        This is an attempt to solve the reported problem "pcrecpp::no_arg is not
51        exported in the Windows port". It has not yet been confirmed that the patch
52        solves the problem, but it does no harm.
53    
54    6.  Applied Sheri's patch to CMakeLists.txt to add NON_STANDARD_LIB_PREFIX and
55        NON_STANDARD_LIB_SUFFIX for dll names built with mingw when configured
56        with CMake, and also correct the comment about stack recursion.
57    
58    7.  Remove the automatic building of pcredemo from the ./configure system and
59        from CMakeLists.txt. The whole idea of pcredemo.c is that it is an example
60        of a program that users should build themselves after PCRE is installed, so
61        building it automatically is not really right. What is more, it gave
62        trouble in some build environments.
63    
64    8.  Further tidies to CMakeLists.txt from Sheri and Christian.
65    
66    
67    Version 7.5 10-Jan-08
68  ---------------------  ---------------------
69    
70  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 162  Version 7.5 23-Dec-07
162    
163  20. In pcrecpp.cc, the variable 'count' was incremented twice in  20. In pcrecpp.cc, the variable 'count' was incremented twice in
164      RE::GlobalReplace(). As a result, the number of replacements returned was      RE::GlobalReplace(). As a result, the number of replacements returned was
165      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
166        later patch that removed the other one (the right fix) and added unit tests
167        that check the return values (which was not done before).
168    
169    21. Several CMake things:
170    
171        (1) Arranged that, when cmake is used on Unix, the libraries end up with
172            the names libpcre and libpcreposix, not just pcre and pcreposix.
173    
174        (2) The above change means that pcretest and pcregrep are now correctly
175            linked with the newly-built libraries, not previously installed ones.
176    
177        (3) Added PCRE_SUPPORT_LIBREADLINE, PCRE_SUPPORT_LIBZ, PCRE_SUPPORT_LIBBZ2.
178    
179    22. In UTF-8 mode, with newline set to "any", a pattern such as .*a.*=.b.*
180        crashed when matching a string such as a\x{2029}b (note that \x{2029} is a
181        UTF-8 newline character). The key issue is that the pattern starts .*;
182        this means that the match must be either at the beginning, or after a
183        newline. The bug was in the code for advancing after a failed match and
184        checking that the new position followed a newline. It was not taking
185        account of UTF-8 characters correctly.
186    
187    23. PCRE was behaving differently from Perl in the way it recognized POSIX
188        character classes. PCRE was not treating the sequence [:...:] as a
189        character class unless the ... were all letters. Perl, however, seems to
190        allow any characters between [: and :], though of course it rejects as
191        unknown any "names" that contain non-letters, because all the known class
192        names consist only of letters. Thus, Perl gives an error for [[:1234:]],
193        for example, whereas PCRE did not - it did not recognize a POSIX character
194        class. This seemed a bit dangerous, so the code has been changed to be
195        closer to Perl. The behaviour is not identical to Perl, because PCRE will
196        diagnose an unknown class for, for example, [[:l\ower:]] where Perl will
197        treat it as [[:lower:]]. However, PCRE does now give "unknown" errors where
198        Perl does, and where it didn't before.
199    
200    24. Rewrite so as to remove the single use of %n from pcregrep because in some
201        Windows environments %n is disabled by default.
202    
203    
204  Version 7.4 21-Sep-07  Version 7.4 21-Sep-07

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