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revision 735 by ph10, Thu Oct 13 15:51:27 2011 UTC revision 747 by ph10, Tue Nov 15 17:35:10 2011 UTC
# Line 1  Line 1 
1  ChangeLog for PCRE  ChangeLog for PCRE
2  ------------------  ------------------
3    
4  Version 8.20 10-Oct-2011  Version 8.21
5    ------------
6    
7    1.  Updating the JIT compiler.
8    
9    2.  JIT compiler now supports OP_NCREF, OP_RREF and OP_NRREF. New test cases
10        are added as well.
11    
12    3.  Fix cache-flush issue on PowerPC (It is still an experimental JIT port).
13        PCRE_EXTRA_TABLES is not suported by JIT, and should be checked before
14        calling _pcre_jit_exec. Some extra comments are added.
15    
16    4.  Mark settings inside atomic groups that do not contain any capturing
17        parentheses, for example, (?>a(*:m)), were not being passed out. This bug
18        was introduced by change 18 for 8.20.
19    
20    5.  Supporting of \x, \U and \u in JavaScript compatibility mode based on the
21        ECMA-262 standard.
22    
23    6.  Lookbehinds such as (?<=a{2}b) that contained a fixed repetition were
24        erroneously being rejected as "not fixed length" if PCRE_CASELESS was set.
25        This bug was probably introduced by change 9 of 8.13.
26    
27    7.  While fixing 6 above, I noticed that a number of other items were being
28        incorrectly rejected as "not fixed length". This arose partly because newer
29        opcodes had not been added to the fixed-length checking code. I have (a)
30        corrected the bug and added tests for these items, and (b) arranged for an
31        error to occur if an unknown opcode is encountered while checking for fixed
32        length instead of just assuming "not fixed length". The items that were
33        rejected were: (*ACCEPT), (*COMMIT), (*FAIL), (*MARK), (*PRUNE), (*SKIP),
34        (*THEN), \h, \H, \v, \V, and single character negative classes with fixed
35        repetitions, e.g. [^a]{3}, with and without PCRE_CASELESS.
36    
37    
38    Version 8.20 21-Oct-2011
39  ------------------------  ------------------------
40    
41  1.  Change 37 of 8.13 broke patterns like [:a]...[b:] because it thought it had  1.  Change 37 of 8.13 broke patterns like [:a]...[b:] because it thought it had
# Line 68  Version 8.20 10-Oct-2011 Line 102  Version 8.20 10-Oct-2011
102    
103  12. In some environments, the output of pcretest -C is CRLF terminated. This  12. In some environments, the output of pcretest -C is CRLF terminated. This
104      broke RunTest's code that checks for the link size. A single white space      broke RunTest's code that checks for the link size. A single white space
105      after the value is now allowed for.      character after the value is now allowed for.
106    
107  13. RunTest now checks for the "fr" locale as well as for "fr_FR" and "french".  13. RunTest now checks for the "fr" locale as well as for "fr_FR" and "french".
108      For "fr", it uses the Windows-specific input and output files.      For "fr", it uses the Windows-specific input and output files.
# Line 103  Version 8.20 10-Oct-2011 Line 137  Version 8.20 10-Oct-2011
137  19. If the PCRE_NO_START_OPTIMIZE option was set for pcre_compile(), it did not  19. If the PCRE_NO_START_OPTIMIZE option was set for pcre_compile(), it did not
138      suppress the check for a minimum subject length at run time. (If it was      suppress the check for a minimum subject length at run time. (If it was
139      given to pcre_exec() or pcre_dfa_exec() it did work.)      given to pcre_exec() or pcre_dfa_exec() it did work.)
140    
141  20. Fixed an ASCII-dependent infelicity in pcretest that would have made it  20. Fixed an ASCII-dependent infelicity in pcretest that would have made it
142      fail to work when decoding hex characters in data strings in EBCDIC      fail to work when decoding hex characters in data strings in EBCDIC
143      environments.      environments.
144    
145  21. It appears that in at least one Mac OS environment, the isxdigit() function  21. It appears that in at least one Mac OS environment, the isxdigit() function
146      is implemented as a macro that evaluates to its argument more than once,      is implemented as a macro that evaluates to its argument more than once,
147      contravening the C 90 Standard (I haven't checked a later standard). There      contravening the C 90 Standard (I haven't checked a later standard). There
148      was an instance in pcretest which caused it to go wrong when processing      was an instance in pcretest which caused it to go wrong when processing
149      \x{...} escapes in subject strings. The has been rewritten to avoid using      \x{...} escapes in subject strings. The has been rewritten to avoid using
150      things like p++ in the argument of isxdigit().      things like p++ in the argument of isxdigit().
151    
152    

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