/[pcre]/code/trunk/ChangeLog
ViewVC logotype

Diff of /code/trunk/ChangeLog

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 3 by nigel, Sat Feb 24 21:38:01 2007 UTC revision 15 by nigel, Sat Feb 24 21:38:25 2007 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4    
5    Version 1.06 23-Jan-98
6    ----------------------
7    
8    1. Added Markus Oberhumer's little patches for C++.
9    
10    2. Literal strings longer than 255 characters were broken.
11    
12    
13    Version 1.05 23-Dec-97
14    ----------------------
15    
16    1. Negated character classes containing more than one character were failing if
17    PCRE_CASELESS was set at run time.
18    
19    
20    Version 1.04 19-Dec-97
21    ----------------------
22    
23    1. Corrected the man page, where some "const" qualifiers had been omitted.
24    
25    2. Made debugging output print "{0,xxx}" instead of just "{,xxx}" to agree with
26    input syntax.
27    
28    3. Fixed memory leak which occurred when a regex with back references was
29    matched with an offsets vector that wasn't big enough. The temporary memory
30    that is used in this case wasn't being freed if the match failed.
31    
32    4. Tidied pcretest to ensure it frees memory that it gets.
33    
34    5. Temporary memory was being obtained in the case where the passed offsets
35    vector was exactly big enough.
36    
37    6. Corrected definition of offsetof() from change 5 below.
38    
39    7. I had screwed up change 6 below and broken the rules for the use of
40    setjmp(). Now fixed.
41    
42    
43    Version 1.03 18-Dec-97
44    ----------------------
45    
46    1. A erroneous regex with a missing opening parenthesis was correctly
47    diagnosed, but PCRE attempted to access brastack[-1], which could cause crashes
48    on some systems.
49    
50    2. Replaced offsetof(real_pcre, code) by offsetof(real_pcre, code[0]) because
51    it was reported that one broken compiler failed on the former because "code" is
52    also an independent variable.
53    
54    3. The erroneous regex a[]b caused an array overrun reference.
55    
56    4. A regex ending with a one-character negative class (e.g. /[^k]$/) did not
57    fail on data ending with that character. (It was going on too far, and checking
58    the next character, typically a binary zero.) This was specific to the
59    optimized code for single-character negative classes.
60    
61    5. Added a contributed patch from the TIN world which does the following:
62    
63      + Add an undef for memmove, in case the the system defines a macro for it.
64    
65      + Add a definition of offsetof(), in case there isn't one. (I don't know
66        the reason behind this - offsetof() is part of the ANSI standard - but
67        it does no harm).
68    
69      + Reduce the ifdef's in pcre.c using macro DPRINTF, thereby eliminating
70        most of the places where whitespace preceded '#'. I have given up and
71        allowed the remaining 2 cases to be at the margin.
72    
73      + Rename some variables in pcre to eliminate shadowing. This seems very
74        pedantic, but does no harm, of course.
75    
76    6. Moved the call to setjmp() into its own function, to get rid of warnings
77    from gcc -Wall, and avoided calling it at all unless PCRE_EXTRA is used.
78    
79    7. Constructs such as \d{8,} were compiling into the equivalent of
80    \d{8}\d{0,65527} instead of \d{8}\d* which didn't make much difference to the
81    outcome, but in this particular case used more store than had been allocated,
82    which caused the bug to be discovered because it threw up an internal error.
83    
84    8. The debugging code in both pcre and pcretest for outputting the compiled
85    form of a regex was going wrong in the case of back references followed by
86    curly-bracketed repeats.
87    
88    
89    Version 1.02 12-Dec-97
90    ----------------------
91    
92    1. Typos in pcre.3 and comments in the source fixed.
93    
94    2. Applied a contributed patch to get rid of places where it used to remove
95    'const' from variables, and fixed some signed/unsigned and uninitialized
96    variable warnings.
97    
98    3. Added the "runtest" target to Makefile.
99    
100    4. Set default compiler flag to -O2 rather than just -O.
101    
102    
103    Version 1.01 19-Nov-97
104    ----------------------
105    
106    1. PCRE was failing to diagnose unlimited repeat of empty string for patterns
107    like /([ab]*)*/, that is, for classes with more than one character in them.
108    
109    2. Likewise, it wasn't diagnosing patterns with "once-only" subpatterns, such
110    as /((?>a*))*/ (a PCRE_EXTRA facility).
111    
112    
113    Version 1.00 18-Nov-97
114    ----------------------
115    
116    1. Added compile-time macros to support systems such as SunOS4 which don't have
117    memmove() or strerror() but have other things that can be used instead.
118    
119    2. Arranged that "make clean" removes the executables.
120    
121    
122  Version 0.99 27-Oct-97  Version 0.99 27-Oct-97
123  ----------------------  ----------------------
124    

Legend:
Removed from v.3  
changed lines
  Added in v.15

webmaster@exim.org
ViewVC Help
Powered by ViewVC 1.1.12