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revision 175 by ph10, Mon Jun 11 13:38:38 2007 UTC revision 535 by ph10, Thu Jun 3 19:18:24 2010 UTC
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1  News about PCRE releases  News about PCRE releases
2  ------------------------  ------------------------
3    
4    Release 8.10 03-Jun-2010
5    ------------------------
6    
7    There are two major additions: support for (*MAKR) and friends, and the option
8    PCRE_UCP, which changes the behaviour of \b, \d, \s, and \w (and their
9    opposites) so that they make use of Unicode properties. There are also a number
10    of lesser new features, and several bugs have been fixed. A new option,
11    --line-buffered, has been added to pcregrep, for use when it is connected to
12    pipes.
13    
14    
15    Release 8.02 19-Mar-2010
16    ------------------------
17    
18    Another bug-fix release.
19    
20    
21    Release 8.01 19-Jan-2010
22    ------------------------
23    
24    This is a bug-fix release. Several bugs in the code itself and some bugs and
25    infelicities in the build system have been fixed.
26    
27    
28    Release 8.00 19-Oct-09
29    ----------------------
30    
31    Bugs have been fixed in the library and in pcregrep. There are also some
32    enhancements. Restrictions on patterns used for partial matching have been
33    removed, extra information is given for partial matches, the partial matching
34    process has been improved, and an option to make a partial match override a
35    full match is available. The "study" process has been enhanced by finding a
36    lower bound matching length. Groups with duplicate numbers may now have
37    duplicated names without the use of PCRE_DUPNAMES. However, they may not have
38    different names. The documentation has been revised to reflect these changes.
39    The version number has been expanded to 3 digits as it is clear that the rate
40    of change is not slowing down.
41    
42    
43    Release 7.9 11-Apr-09
44    ---------------------
45    
46    Mostly bugfixes and tidies with just a couple of minor functional additions.
47    
48    
49    Release 7.8 05-Sep-08
50    ---------------------
51    
52    More bug fixes, plus a performance improvement in Unicode character property
53    lookup.
54    
55    
56    Release 7.7 07-May-08
57    ---------------------
58    
59    This is once again mainly a bug-fix release, but there are a couple of new
60    features.
61    
62  Release 7.2 30-Apr-07  
63    Release 7.6 28-Jan-08
64    ---------------------
65    
66    The main reason for having this release so soon after 7.5 is because it fixes a
67    potential buffer overflow problem in pcre_compile() when run in UTF-8 mode. In
68    addition, the CMake configuration files have been brought up to date.
69    
70    
71    Release 7.5 10-Jan-08
72    ---------------------
73    
74    This is mainly a bug-fix release. However the ability to link pcregrep with
75    libz or libbz2 and the ability to link pcretest with libreadline have been
76    added. Also the --line-offsets and --file-offsets options were added to
77    pcregrep.
78    
79    
80    Release 7.4 21-Sep-07
81    ---------------------
82    
83    The only change of specification is the addition of options to control whether
84    \R matches any Unicode line ending (the default) or just CR, LF, and CRLF.
85    Otherwise, the changes are bug fixes and a refactoring to reduce the number of
86    relocations needed in a shared library. There have also been some documentation
87    updates, in particular, some more information about using CMake to build PCRE
88    has been added to the NON-UNIX-USE file.
89    
90    
91    Release 7.3 28-Aug-07
92    ---------------------
93    
94    Most changes are bug fixes. Some that are not:
95    
96    1. There is some support for Perl 5.10's experimental "backtracking control
97       verbs" such as (*PRUNE).
98    
99    2. UTF-8 checking is now as per RFC 3629 instead of RFC 2279; this is more
100       restrictive in the strings it accepts.
101    
102    3. Checking for potential integer overflow has been made more dynamic, and as a
103       consequence there is no longer a hard limit on the size of a subpattern that
104       has a limited repeat count.
105    
106    4. When CRLF is a valid line-ending sequence, pcre_exec() and pcre_dfa_exec()
107       no longer advance by two characters instead of one when an unanchored match
108       fails at CRLF if there are explicit CR or LF matches within the pattern.
109       This gets rid of some anomalous effects that previously occurred.
110    
111    5. Some PCRE-specific settings for varying the newline options at the start of
112       a pattern have been added.
113    
114    
115    Release 7.2 19-Jun-07
116  ---------------------  ---------------------
117    
118  WARNING: saved patterns that were compiled by earlier versions of PCRE must be  WARNING: saved patterns that were compiled by earlier versions of PCRE must be
119  recompiled for use with 7.2 (necessitated by the addition of \K).  recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v,
120    and \V).
121    
122  Correction to the notes for 7.1: the note about shared libraries for Windows is  Correction to the notes for 7.1: the note about shared libraries for Windows is
123  wrong. Previously, three libraries were built, but each could function  wrong. Previously, three libraries were built, but each could function
# Line 20  Some more features from Perl 5.10 have b Line 131  Some more features from Perl 5.10 have b
131    
132    (?-n) and (?+n) relative references for recursion and subroutines.    (?-n) and (?+n) relative references for recursion and subroutines.
133    
   (Not sure if this one is actually in Perl 5.10)  
134    (?(-n) and (?(+n) relative references as conditions.    (?(-n) and (?(+n) relative references as conditions.
135    
136      \k{name} and \g{name} are synonyms for \k<name>.
137    
138    \K to reset the start of the matched string; for example, (foo)\Kbar    \K to reset the start of the matched string; for example, (foo)\Kbar
139    matches bar preceded by foo, but only sets bar as the matched string.    matches bar preceded by foo, but only sets bar as the matched string.
140    
141    (?| introduces a group where the capturing parentheses in each alternative    (?| introduces a group where the capturing parentheses in each alternative
142    start from the same number; for example, (?|(abc)|(xyz)) sets capturing    start from the same number; for example, (?|(abc)|(xyz)) sets capturing
143    parentheses number 1 in both cases.    parentheses number 1 in both cases.
144    
145      \h, \H, \v, \V match horizontal and vertical whitespace, respectively.
146    
147    
148  Release 7.1 24-Apr-07  Release 7.1 24-Apr-07
149  ---------------------  ---------------------

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