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revision 167 by ph10, Wed May 9 15:53:54 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 30-Apr-07  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  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  wrong. Previously, three libraries were built, but each could function
14  independently. For example, the pcreposix library also included all the  independently. For example, the pcreposix library also included all the
# Line 16  the basic pcre library. Line 20  the basic pcre library.
20  Some more features from Perl 5.10 have been added:  Some more features from Perl 5.10 have been added:
21    
22    (?-n) and (?+n) relative references for recursion and subroutines.    (?-n) and (?+n) relative references for recursion and subroutines.
23    
24    (Not sure if this one is actually in Perl 5.10)    (?(-n) and (?(+n) relative references as conditions.
25    (?(-n) and (?(+n) relative references as conditions.  
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

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