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revision 131 by ph10, Mon Mar 26 15:10:12 2007 UTC revision 171 by ph10, Mon Jun 4 14:28:58 2007 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 7.1 12-Mar-07  Version 7.2 01-May-07
5    ---------------------
6    
7     1. If the fr_FR locale cannot be found for test 3, try the "french" locale,
8        which is apparently normally available under Windows.
9    
10     2. Re-jig the pcregrep tests with different newline settings in an attempt
11        to make them independent of the local environment's newline setting.
12    
13     3. Add code to configure.ac to remove -g from the CFLAGS default settings.
14    
15     4. Some of the "internals" tests were previously cut out when the link size
16        was not 2, because the output contained actual offsets. The recent new
17        "Z" feature of pcretest means that these can be cut out, making the tests
18        usable with all link sizes.
19    
20     5. Implemented Stan Switzer's goto replacement for longjmp() when not using
21        stack recursion. This gives a massive performance boost under BSD, but just
22        a small improvement under Linux. However, it saves one field in the frame
23        in all cases.
24    
25     6. Added more features from the forthcoming Perl 5.10:
26    
27        (a) (?-n) (where n is a string of digits) is a relative subroutine or
28            recursion call. It refers to the nth most recently opened parentheses.
29    
30        (b) (?+n) is also a relative subroutine call; it refers to the nth next
31            to be opened parentheses.
32    
33        (c) Conditions that refer to capturing parentheses can be specified
34            relatively, for example, (?(-2)... or (?(+3)...
35    
36        (d) \K resets the start of the current match so that everything before
37            is not part of it.
38    
39        (e) \k{name} is synonymous with \k<name> and \k'name' (.NET compatible).
40    
41        (f) \g{name} is another synonym - part of Perl 5.10's unification of
42            reference syntax.
43    
44     7. Added two new calls to pcre_fullinfo(): PCRE_INFO_OKPARTIAL and
45        PCRE_INFO_JCHANGED.
46    
47     8. A pattern such as  (.*(.)?)*  caused pcre_exec() to fail by either not
48        terminating or by crashing. Diagnosed by Viktor Griph; it was in the code
49        for detecting groups that can match an empty string.
50    
51    
52    Version 7.1 24-Apr-07
53  ---------------------  ---------------------
54    
55   1. Applied Bob Rossi and Daniel G's patches to convert the build system to one   1. Applied Bob Rossi and Daniel G's patches to convert the build system to one
# Line 33  Version 7.1 12-Mar-07 Line 81  Version 7.1 12-Mar-07
81   5. Updated the support (such as it is) for Virtual Pascal, thanks to Stefan   5. Updated the support (such as it is) for Virtual Pascal, thanks to Stefan
82      Weber: (1) pcre_internal.h was missing some function renames; (2) updated      Weber: (1) pcre_internal.h was missing some function renames; (2) updated
83      makevp.bat for the current PCRE, using the additional files      makevp.bat for the current PCRE, using the additional files
84      makevp-c.txt, makevp-l.txt, and pcregexp.pas.      makevp_c.txt, makevp_l.txt, and pcregexp.pas.
85    
86   6. A Windows user reported a minor discrepancy with test 2, which turned out   6. A Windows user reported a minor discrepancy with test 2, which turned out
87      to be caused by a trailing space on an input line that had got lost in his      to be caused by a trailing space on an input line that had got lost in his
# Line 115  Version 7.1 12-Mar-07 Line 163  Version 7.1 12-Mar-07
163    
164  14. If erroroffset was passed as NULL to pcre_compile, it provoked a  14. If erroroffset was passed as NULL to pcre_compile, it provoked a
165      segmentation fault instead of returning the appropriate error message.      segmentation fault instead of returning the appropriate error message.
166    
167  15. In multiline mode when the newline sequence was set to "any", the pattern  15. In multiline mode when the newline sequence was set to "any", the pattern
168      ^$ would give a match between the \r and \n of a subject such as "A\r\nB".      ^$ would give a match between the \r and \n of a subject such as "A\r\nB".
169      This doesn't seem right; it now treats the CRLF combination as the line      This doesn't seem right; it now treats the CRLF combination as the line
170      ending, and so does not match in that case. It's only a pattern such as ^$      ending, and so does not match in that case. It's only a pattern such as ^$
171      that would hit this one: something like ^ABC$ would have failed after \r      that would hit this one: something like ^ABC$ would have failed after \r
172      and then tried again after \r\n.      and then tried again after \r\n.
173    
174  16. Changed the comparison command for RunGrepTest from "diff -u" to "diff -ub"  16. Changed the comparison command for RunGrepTest from "diff -u" to "diff -ub"
175      in an attempt to make files that differ only in their line terminators      in an attempt to make files that differ only in their line terminators
176      compare equal. This works on Linux.      compare equal. This works on Linux.
177    
178    17. Under certain error circumstances pcregrep might try to free random memory
179        as it exited. This is now fixed, thanks to valgrind.
180    
181    19. In pcretest, if the pattern /(?m)^$/g<any> was matched against the string
182        "abc\r\n\r\n", it found an unwanted second match after the second \r. This
183        was because its rules for how to advance for /g after matching an empty
184        string at the end of a line did not allow for this case. They now check for
185        it specially.
186    
187    20. pcretest is supposed to handle patterns and data of any length, by
188        extending its buffers when necessary. It was getting this wrong when the
189        buffer for a data line had to be extended.
190    
191    21. Added PCRE_NEWLINE_ANYCRLF which is like ANY, but matches only CR, LF, or
192        CRLF as a newline sequence.
193    
194    22. Code for handling Unicode properties in pcre_dfa_exec() wasn't being cut
195        out by #ifdef SUPPORT_UCP. This did no harm, as it could never be used, but
196        I have nevertheless tidied it up.
197    
198    23. Added some casts to kill warnings from HP-UX ia64 compiler.
199    
200    24. Added a man page for pcre-config.
201    
202    
203  Version 7.0 19-Dec-06  Version 7.0 19-Dec-06

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