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revision 210 by ph10, Wed Aug 8 14:24:50 2007 UTC revision 211 by ph10, Thu Aug 9 09:52:43 2007 UTC
# Line 87  Version 7.3 05-Jul-07 Line 87  Version 7.3 05-Jul-07
87  12. A pattern like \X?\d or \P{L}?\d in non-UTF-8 mode could cause a backtrack  12. A pattern like \X?\d or \P{L}?\d in non-UTF-8 mode could cause a backtrack
88      past the start of the subject in the presence of bytes with the top bit      past the start of the subject in the presence of bytes with the top bit
89      set, for example "\x8aBCD".      set, for example "\x8aBCD".
90    
91  13. Added Perl 5.10 experimental backtracking controls (*FAIL), (*F), (*PRUNE),  13. Added Perl 5.10 experimental backtracking controls (*FAIL), (*F), (*PRUNE),
92      (*SKIP), (*THEN), (*COMMIT), and (*ACCEPT).      (*SKIP), (*THEN), (*COMMIT), and (*ACCEPT).
93    
94  14. Optimized (?!) to (*FAIL).  14. Optimized (?!) to (*FAIL).
95    
96    15. Updated the test for a valid UTF-8 string to conform to the later RFC 3629.
97        This restricts code points to be within the range 0 to 0x10FFFF, excluding
98        the "low surrogate" sequence 0xD800 to 0xDFFF. Previously, PCRE allowed the
99        full range 0 to 0x7FFFFFFF, as defined by RFC 2279. Internally, it still
100        does: it's just the validity check that is more restrictive.
101    
102    
103  Version 7.2 19-Jun-07  Version 7.2 19-Jun-07
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