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revision 155 by ph10, Tue Apr 24 13:36:11 2007 UTC revision 182 by ph10, Wed Jun 13 15:09:54 2007 UTC
# Line 2  News about PCRE releases Line 2  News about PCRE releases
2  ------------------------  ------------------------
3    
4    
5    Release 7.2 13-Jun-07
6    ---------------------
7    
8    WARNING: saved patterns that were compiled by earlier versions of PCRE must be
9    recompiled for use with 7.2 (necessitated by the addition of \K, \h, \H, \v,
10    and \V).
11    
12    Correction to the notes for 7.1: the note about shared libraries for Windows is
13    wrong. Previously, three libraries were built, but each could function
14    independently. For example, the pcreposix library also included all the
15    functions from the basic pcre library. The change is that the three libraries
16    are no longer independent. They are like the Unix libraries. To use the
17    pcreposix functions, for example, you need to link with both the pcreposix and
18    the basic pcre library.
19    
20    Some more features from Perl 5.10 have been added:
21    
22      (?-n) and (?+n) relative references for recursion and subroutines.
23    
24      (?(-n) and (?(+n) relative references as conditions.
25    
26      \k{name} and \g{name} are synonyms for \k<name>.
27    
28      \K to reset the start of the matched string; for example, (foo)\Kbar
29      matches bar preceded by foo, but only sets bar as the matched string.
30    
31      (?| introduces a group where the capturing parentheses in each alternative
32      start from the same number; for example, (?|(abc)|(xyz)) sets capturing
33      parentheses number 1 in both cases.
34    
35      \h, \H, \v, \V match horizontal and vertical whitespace, respectively.
36    
37    
38  Release 7.1 24-Apr-07  Release 7.1 24-Apr-07
39  ---------------------  ---------------------
40    

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