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revision 168 by ph10, Tue May 29 15:18:18 2007 UTC revision 181 by ph10, Wed Jun 13 14:55:18 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  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).  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
# Line 19  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      (?(-n) and (?(+n) relative references as conditions.
25    
26    (Not sure if this one is actually in Perl 5.10)    \k{name} and \g{name} are synonyms for \k<name>.
27    (?(-n) and (?(+n) relative references as conditions.  
   
28    \K to reset the start of the matched string; for example, (foo)\Kbar    \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    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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