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

Diff of /code/trunk/NEWS

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

revision 128 by ph10, Tue Mar 20 11:46:50 2007 UTC revision 842 by ph10, Sat Dec 31 15:19:04 2011 UTC
# Line 1  Line 1 
1  News about PCRE releases  News about PCRE releases
2  ------------------------  ------------------------
3    
4    Release 8.30
5    ------------
6    
7  Release 7.1 20-Mar-07  Release 8.30 introduces a major new feature: support for 16-bit character
8    strings, compiled as a separate library. There are no new features in the 8-bit
9    library, but some bugs have been mended. However, note that the pcre_info()
10    function, which has been obsolete for over 10 years, has been removed.
11    
12    
13    Release 8.21 12-Dec-2011
14    ------------------------
15    
16    This is almost entirely a bug-fix release. The only new feature is the ability
17    to obtain the size of the memory used by the JIT compiler.
18    
19    
20    Release 8.20 21-Oct-2011
21    ------------------------
22    
23    The main change in this release is the inclusion of Zoltan Herczeg's
24    just-in-time compiler support, which can be accessed by building PCRE with
25    --enable-jit. Large performance benefits can be had in many situations. 8.20
26    also fixes an unfortunate bug that was introduced in 8.13 as well as tidying up
27    a number of infelicities and differences from Perl.
28    
29    
30    Release 8.13 16-Aug-2011
31    ------------------------
32    
33    This is mainly a bug-fix release. There has been a lot of internal refactoring.
34    The Unicode tables have been updated. The only new feature in the library is
35    the passing of *MARK information to callouts. Some additions have been made to
36    pcretest to make testing easier and more comprehensive. There is a new option
37    for pcregrep to adjust its internal buffer size.
38    
39    
40    Release 8.12 15-Jan-2011
41    ------------------------
42    
43    This release fixes some bugs in pcregrep, one of which caused the tests to fail
44    on 64-bit big-endian systems. There are no changes to the code of the library.
45    
46    
47    Release 8.11 10-Dec-2010
48    ------------------------
49    
50    A number of bugs in the library and in pcregrep have been fixed. As always, see
51    ChangeLog for details. The following are the non-bug-fix changes:
52    
53    . Added --match-limit and --recursion-limit to pcregrep.
54    
55    . Added an optional parentheses number to the -o and --only-matching options
56      of pcregrep.
57    
58    . Changed the way PCRE_PARTIAL_HARD affects the matching of $, \z, \Z, \b, and
59      \B.
60    
61    . Added PCRE_ERROR_SHORTUTF8 to make it possible to distinguish between a
62      bad UTF-8 sequence and one that is incomplete when using PCRE_PARTIAL_HARD.
63    
64    . Recognize (*NO_START_OPT) at the start of a pattern to set the PCRE_NO_
65      START_OPTIMIZE option, which is now allowed at compile time
66    
67    
68    Release 8.10 25-Jun-2010
69    ------------------------
70    
71    There are two major additions: support for (*MARK) and friends, and the option
72    PCRE_UCP, which changes the behaviour of \b, \d, \s, and \w (and their
73    opposites) so that they make use of Unicode properties. There are also a number
74    of lesser new features, and several bugs have been fixed. A new option,
75    --line-buffered, has been added to pcregrep, for use when it is connected to
76    pipes.
77    
78    
79    Release 8.02 19-Mar-2010
80    ------------------------
81    
82    Another bug-fix release.
83    
84    
85    Release 8.01 19-Jan-2010
86    ------------------------
87    
88    This is a bug-fix release. Several bugs in the code itself and some bugs and
89    infelicities in the build system have been fixed.
90    
91    
92    Release 8.00 19-Oct-09
93    ----------------------
94    
95    Bugs have been fixed in the library and in pcregrep. There are also some
96    enhancements. Restrictions on patterns used for partial matching have been
97    removed, extra information is given for partial matches, the partial matching
98    process has been improved, and an option to make a partial match override a
99    full match is available. The "study" process has been enhanced by finding a
100    lower bound matching length. Groups with duplicate numbers may now have
101    duplicated names without the use of PCRE_DUPNAMES. However, they may not have
102    different names. The documentation has been revised to reflect these changes.
103    The version number has been expanded to 3 digits as it is clear that the rate
104    of change is not slowing down.
105    
106    
107    Release 7.9 11-Apr-09
108  ---------------------  ---------------------
109    
110  There are no new features in this release. A few bugs are fixed (see ChangeLog  Mostly bugfixes and tidies with just a couple of minor functional additions.
111  for details), but the major change is a complete re-implementation of the build  
112  system. This now has full Autotools support and so is now "standard" in some  
113  sense. It should help with compiling PCRE in a wide variety of environments.  Release 7.8 05-Sep-08
114    ---------------------
115    
116    More bug fixes, plus a performance improvement in Unicode character property
117    lookup.
118    
119    
120    Release 7.7 07-May-08
121    ---------------------
122    
123    This is once again mainly a bug-fix release, but there are a couple of new
124    features.
125    
126    
127    Release 7.6 28-Jan-08
128    ---------------------
129    
130    The main reason for having this release so soon after 7.5 is because it fixes a
131    potential buffer overflow problem in pcre_compile() when run in UTF-8 mode. In
132    addition, the CMake configuration files have been brought up to date.
133    
134    
135    Release 7.5 10-Jan-08
136    ---------------------
137    
138    This is mainly a bug-fix release. However the ability to link pcregrep with
139    libz or libbz2 and the ability to link pcretest with libreadline have been
140    added. Also the --line-offsets and --file-offsets options were added to
141    pcregrep.
142    
143    
144    Release 7.4 21-Sep-07
145    ---------------------
146    
147    The only change of specification is the addition of options to control whether
148    \R matches any Unicode line ending (the default) or just CR, LF, and CRLF.
149    Otherwise, the changes are bug fixes and a refactoring to reduce the number of
150    relocations needed in a shared library. There have also been some documentation
151    updates, in particular, some more information about using CMake to build PCRE
152    has been added to the NON-UNIX-USE file.
153    
154    
155    Release 7.3 28-Aug-07
156    ---------------------
157    
158    Most changes are bug fixes. Some that are not:
159    
160    1. There is some support for Perl 5.10's experimental "backtracking control
161       verbs" such as (*PRUNE).
162    
163    2. UTF-8 checking is now as per RFC 3629 instead of RFC 2279; this is more
164       restrictive in the strings it accepts.
165    
166    3. Checking for potential integer overflow has been made more dynamic, and as a
167       consequence there is no longer a hard limit on the size of a subpattern that
168       has a limited repeat count.
169    
170    4. When CRLF is a valid line-ending sequence, pcre_exec() and pcre_dfa_exec()
171       no longer advance by two characters instead of one when an unanchored match
172       fails at CRLF if there are explicit CR or LF matches within the pattern.
173       This gets rid of some anomalous effects that previously occurred.
174    
175    5. Some PCRE-specific settings for varying the newline options at the start of
176       a pattern have been added.
177    
178    
179    Release 7.2 19-Jun-07
180    ---------------------
181    
182    WARNING: saved patterns that were compiled by earlier versions of PCRE must be
183    recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v,
184    and \V).
185    
186    Correction to the notes for 7.1: the note about shared libraries for Windows is
187    wrong. Previously, three libraries were built, but each could function
188    independently. For example, the pcreposix library also included all the
189    functions from the basic pcre library. The change is that the three libraries
190    are no longer independent. They are like the Unix libraries. To use the
191    pcreposix functions, for example, you need to link with both the pcreposix and
192    the basic pcre library.
193    
194    Some more features from Perl 5.10 have been added:
195    
196      (?-n) and (?+n) relative references for recursion and subroutines.
197    
198      (?(-n) and (?(+n) relative references as conditions.
199    
200      \k{name} and \g{name} are synonyms for \k<name>.
201    
202      \K to reset the start of the matched string; for example, (foo)\Kbar
203      matches bar preceded by foo, but only sets bar as the matched string.
204    
205      (?| introduces a group where the capturing parentheses in each alternative
206      start from the same number; for example, (?|(abc)|(xyz)) sets capturing
207      parentheses number 1 in both cases.
208    
209      \h, \H, \v, \V match horizontal and vertical whitespace, respectively.
210    
211    
212    Release 7.1 24-Apr-07
213    ---------------------
214    
215    There is only one new feature in this release: a linebreak setting of
216    PCRE_NEWLINE_ANYCRLF. It is a cut-down version of PCRE_NEWLINE_ANY, which
217    recognizes only CRLF, CR, and LF as linebreaks.
218    
219    A few bugs are fixed (see ChangeLog for details), but the major change is a
220    complete re-implementation of the build system. This now has full Autotools
221    support and so is now "standard" in some sense. It should help with compiling
222    PCRE in a wide variety of environments.
223    
224    NOTE: when building shared libraries for Windows, three dlls are now built,
225    called libpcre, libpcreposix, and libpcrecpp. Previously, everything was
226    included in a single dll.
227    
228  An important change is that the dftables auxiliary program is no longer  Another important change is that the dftables auxiliary program is no longer
229  compiled and run at "make" time by default. Instead, a default set of character  compiled and run at "make" time by default. Instead, a default set of character
230  tables (assuming ASCII coding) is used. If you want to use dftables to generate  tables (assuming ASCII coding) is used. If you want to use dftables to generate
231  the character tables as previously, add --enable-rebuild-chartables to the  the character tables as previously, add --enable-rebuild-chartables to the

Legend:
Removed from v.128  
changed lines
  Added in v.842

  ViewVC Help
Powered by ViewVC 1.1.5