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revision 472 by ph10, Fri Dec 11 16:42:50 2009 UTC revision 473 by ph10, Sat Jan 2 12:40:07 2010 UTC
# Line 5  Version 8.01 11-Dec-09 Line 5  Version 8.01 11-Dec-09
5  ----------------------  ----------------------
6    
7  1.  If a pattern contained a conditional subpattern with only one branch (in  1.  If a pattern contained a conditional subpattern with only one branch (in
8      particular, this includes all (DEFINE) patterns), a call to pcre_study()      particular, this includes all (DEFINE) patterns), a call to pcre_study()
9      computed the wrong minimum data length (which is of course zero for such      computed the wrong minimum data length (which is of course zero for such
10      subpatterns).      subpatterns).
11    
12  2.  For patterns such as (?i)a(?-i)b|c where an option setting at the start of  2.  For patterns such as (?i)a(?-i)b|c where an option setting at the start of
13      the pattern is reset in the first branch, pcre_compile() failed with      the pattern is reset in the first branch, pcre_compile() failed with
14      "internal error: code overflow at offset...". This happened only when      "internal error: code overflow at offset...". This happened only when
15      the reset was to the original external option setting. (An optimization      the reset was to the original external option setting. (An optimization
16      abstracts leading options settings into an external setting, which was the      abstracts leading options settings into an external setting, which was the
17      cause of this.)      cause of this.)
18    
19    3.  A pattern such as ^(?!a(*SKIP)b) where a negative assertion contained one
20        of the verbs SKIP, PRUNE, or COMMIT, did not work correctly. When the
21        assertion pattern did not match (meaning that the assertion was true), it
22        was incorrectly treated as false if the SKIP had been reached during the
23        matching. This also applied to assertions used as conditions.
24    
25    4.  If an item that is not supported by pcre_dfa_exec() was encountered in an
26        assertion subpattern, including such a pattern used as a condition,
27        unpredictable results occurred, instead of the error return
28        PCRE_ERROR_DFA_UITEM.
29    
30    
31  Version 8.00 19-Oct-09  Version 8.00 19-Oct-09
32  ----------------------  ----------------------
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