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

Diff of /code/trunk/ChangeLog

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

revision 531 by ph10, Tue Jun 1 13:53:26 2010 UTC revision 550 by ph10, Sun Oct 10 16:24:11 2010 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 8.10 03 May-2010  Version 8.11 10-Oct-2010
5    ------------------------
6    
7    1.  (*THEN) was not working properly if there were untried alternatives prior
8        to it in the current branch. For example, in ((a|b)(*THEN)(*F)|c..) it
9        backtracked to try for "b" instead of moving to the next alternative branch
10        at the same level (in this case, to look for "c"). The Perl documentation
11        is clear that when (*THEN) is backtracked onto, it goes to the "next
12        alternative in the innermost enclosing group".
13    
14    
15    Version 8.10 25-Jun-2010
16  ------------------------  ------------------------
17    
18  1.  Added support for (*MARK:ARG) and for ARG additions to PRUNE, SKIP, and  1.  Added support for (*MARK:ARG) and for ARG additions to PRUNE, SKIP, and
# Line 9  Version 8.10 03 May-2010 Line 20  Version 8.10 03 May-2010
20    
21  2.  (*ACCEPT) was not working when inside an atomic group.  2.  (*ACCEPT) was not working when inside an atomic group.
22    
23  3.  Inside a character class, \B is treated as a literal by default, but  3.  Inside a character class, \B is treated as a literal by default, but
24      faulted if PCRE_EXTRA is set. This mimics Perl's behaviour (the -w option      faulted if PCRE_EXTRA is set. This mimics Perl's behaviour (the -w option
25      causes the error). The code is unchanged, but I tidied the documentation.      causes the error). The code is unchanged, but I tidied the documentation.
26    
27  4.  Inside a character class, PCRE always treated \R and \X as literals,  4.  Inside a character class, PCRE always treated \R and \X as literals,
28      whereas Perl faults them if its -w option is set. I have changed PCRE so      whereas Perl faults them if its -w option is set. I have changed PCRE so
29      that it faults them when PCRE_EXTRA is set.      that it faults them when PCRE_EXTRA is set.
30    
31  5.  Added support for \N, which always matches any character other than  5.  Added support for \N, which always matches any character other than
32      newline. (It is the same as "." when PCRE_DOTALL is not set.)      newline. (It is the same as "." when PCRE_DOTALL is not set.)
33    
34  6.  When compiling pcregrep with newer versions of gcc which may have  6.  When compiling pcregrep with newer versions of gcc which may have
35      FORTIFY_SOURCE set, several warnings "ignoring return value of 'fwrite',      FORTIFY_SOURCE set, several warnings "ignoring return value of 'fwrite',
36      declared with attribute warn_unused_result" were given. Just casting the      declared with attribute warn_unused_result" were given. Just casting the
37      result to (void) does not stop the warnings; a more elaborate fudge is      result to (void) does not stop the warnings; a more elaborate fudge is
38      needed. I've used a macro to implement this.      needed. I've used a macro to implement this.
39    
40  7.  Minor change to pcretest.c to avoid a compiler warning.  7.  Minor change to pcretest.c to avoid a compiler warning.
41    
42  8.  Added four artifical Unicode properties to help with an option to make  8.  Added four artifical Unicode properties to help with an option to make
43      \s etc use properties (see next item). The new properties are: Xan      \s etc use properties (see next item). The new properties are: Xan
44      (alphanumeric), Xsp (Perl space), Xps (POSIX space), and Xwd (word).      (alphanumeric), Xsp (Perl space), Xps (POSIX space), and Xwd (word).
45    
46  9.  Added PCRE_UCP to make \b, \d, \s, \w, and certain POSIX character classes  9.  Added PCRE_UCP to make \b, \d, \s, \w, and certain POSIX character classes
47      use Unicode properties. (*UCP) at the start of a pattern can be used to set      use Unicode properties. (*UCP) at the start of a pattern can be used to set
48      this option. Modified pcretest to add /W to test this facility. Added      this option. Modified pcretest to add /W to test this facility. Added
49      REG_UCP to make it available via the POSIX interface.      REG_UCP to make it available via the POSIX interface.
   
 10. Added --line-buffered to pcregrep.  
50    
51  11. In UTF-8 mode, if a pattern that was compiled with PCRE_CASELESS was  10. Added --line-buffered to pcregrep.
52      studied, and the match started with a letter with a code point greater than  
53    11. In UTF-8 mode, if a pattern that was compiled with PCRE_CASELESS was
54        studied, and the match started with a letter with a code point greater than
55      127 whose first byte was different to the first byte of the other case of      127 whose first byte was different to the first byte of the other case of
56      the letter, the other case of this starting letter was not recognized.      the letter, the other case of this starting letter was not recognized
57        (#976).
58  12. pcreposix.c included pcre.h before including pcre_internal.h. This caused a  
59      conflict in the definition of PCRE_EXP_DECL. I have removed the include of  12. If a pattern that was studied started with a repeated Unicode property
     pcre.h as pcre_internal.h includes pcre.h itself. (This may be a bit of  
     historical tidying that never got done.)  
   
 13. If a pattern that was studied started with a repeated Unicode property  
60      test, for example, \p{Nd}+, there was the theoretical possibility of      test, for example, \p{Nd}+, there was the theoretical possibility of
61      setting up an incorrect bitmap of starting bytes, but fortunately it could      setting up an incorrect bitmap of starting bytes, but fortunately it could
62      not have actually happened in practice until change 8 above was made (it      not have actually happened in practice until change 8 above was made (it
63      added property types that matched character-matching opcodes).      added property types that matched character-matching opcodes).
64    
65  14. pcre_study() now recognizes \h, \v, and \R when constructing a bit map of  13. pcre_study() now recognizes \h, \v, and \R when constructing a bit map of
66      possible starting bytes for non-anchored patterns.      possible starting bytes for non-anchored patterns.
67    
68  15. The "auto-possessify" feature of pcre_compile() now recognizes \R.  14. Extended the "auto-possessify" feature of pcre_compile(). It now recognizes
69        \R, and also a number of cases that involve Unicode properties, both
70  16. If a repeated Unicode property match (e.g. \p{Lu}*) was used with non-UTF-8      explicit and implicit when PCRE_UCP is set.
71      input, it could crash or give wrong results if characters with values  
72      greater than 0xc0 were present in the subject string. (Detail: it assumed  15. If a repeated Unicode property match (e.g. \p{Lu}*) was used with non-UTF-8
73        input, it could crash or give wrong results if characters with values
74        greater than 0xc0 were present in the subject string. (Detail: it assumed
75      UTF-8 input when processing these items.)      UTF-8 input when processing these items.)
76    
77  17. Added a lot of (int) casts to avoid compiler warnings in systems where  16. Added a lot of (int) casts to avoid compiler warnings in systems where
78      size_t is 64-bit.      size_t is 64-bit (#991).
79    
80  18. Added a check for running out of memory when PCRE is compiled with  17. Added a check for running out of memory when PCRE is compiled with
81      --disable-stack-for-recursion.      --disable-stack-for-recursion (#990).
82    
83    18. If the last data line in a file for pcretest does not have a newline on
84        the end, a newline was missing in the output.
85    
86    19. The default pcre_chartables.c file recognizes only ASCII characters (values
87        less than 128) in its various bitmaps. However, there is a facility for
88        generating tables according to the current locale when PCRE is compiled. It
89        turns out that in some environments, 0x85 and 0xa0, which are Unicode space
90        characters, are recognized by isspace() and therefore were getting set in
91        these tables, and indeed these tables seem to approximate to ISO 8859. This
92        caused a problem in UTF-8 mode when pcre_study() was used to create a list
93        of bytes that can start a match. For \s, it was including 0x85 and 0xa0,
94        which of course cannot start UTF-8 characters. I have changed the code so
95        that only real ASCII characters (less than 128) and the correct starting
96        bytes for UTF-8 encodings are set for characters greater than 127 when in
97        UTF-8 mode. (When PCRE_UCP is set - see 9 above - the code is different
98        altogether.)
99    
100    20. Added the /T option to pcretest so as to be able to run tests with non-
101        standard character tables, thus making it possible to include the tests
102        used for 19 above in the standard set of tests.
103    
104    21. A pattern such as (?&t)(?#()(?(DEFINE)(?<t>a)) which has a forward
105        reference to a subpattern the other side of a comment that contains an
106        opening parenthesis caused either an internal compiling error, or a
107        reference to the wrong subpattern.
108    
109    
110  Version 8.02 19-Mar-2010  Version 8.02 19-Mar-2010

Legend:
Removed from v.531  
changed lines
  Added in v.550

  ViewVC Help
Powered by ViewVC 1.1.5