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revision 356 by ph10, Tue Jul 8 14:14:34 2008 UTC revision 365 by ph10, Fri Jul 11 17:06:55 2008 UTC
# Line 13  Version 8.0 02 Jul-08 Line 13  Version 8.0 02 Jul-08
13    
14  2.  Updated the Unicode datatables to Unicode 5.1.0. This adds yet more  2.  Updated the Unicode datatables to Unicode 5.1.0. This adds yet more
15      scripts.      scripts.
16    
17  3.  Change 12 for 7.7 introduced a bug in pcre_study() when a pattern contained  3.  Change 12 for 7.7 introduced a bug in pcre_study() when a pattern contained
18      a group with a zero qualifier. The result of the study could be incorrect,      a group with a zero qualifier. The result of the study could be incorrect,
19      or the function might crash, depending on the pattern.      or the function might crash, depending on the pattern.
20    
21  4.  Caseless matching was not working for non-ASCII characters in back  4.  Caseless matching was not working for non-ASCII characters in back
22      references. For example, /(\x{de})\1/8i was not matching \x{de}\x{fe}.      references. For example, /(\x{de})\1/8i was not matching \x{de}\x{fe}.
23      It now works when Unicode Property Support is available.      It now works when Unicode Property Support is available.
24    
25  5.  In pcretest, an escape such as \x{de} in the data was always generating  5.  In pcretest, an escape such as \x{de} in the data was always generating
26      a UTF-8 string, even in non-UTF-8 mode. Now it generates a single byte in      a UTF-8 string, even in non-UTF-8 mode. Now it generates a single byte in
27      non-UTF-8 mode. If the value is greater than 255, it gives a warning about      non-UTF-8 mode. If the value is greater than 255, it gives a warning about
28      truncation.      truncation.
29    
30    6.  Minor bugfix in pcrecpp.cc (change "" == ... to NULL == ...).
31    
32    7.  Added two (int) casts to pcregrep when printing the difference of two
33        pointers, in case they are 64-bit values.
34    
35    8.  Added comments about Mac OS X stack usage to the pcrestack man page and to
36        test 2 if it fails.
37    
38    9.  Added PCRE_CALL_CONVENTION just before the names of all exported functions,
39        and a #define of that name to empty if it is not externally set. This is to
40        allow users of MSVC to set it if necessary.
41    
42    10. The PCRE_EXP_DEFN macro which precedes exported functions was missing from
43        the convenience functions in the pcre_get.c source file.
44    
45    11. An option change at the start of a pattern that had top-level alternatives
46        could cause overwriting and/or a crash. This command provoked a crash in
47        some environments:
48    
49          printf "/(?i)[\xc3\xa9\xc3\xbd]|[\xc3\xa9\xc3\xbdA]/8\n" | pcretest
50    
51        This potential security problem was recorded as CVE-2008-2371.
52    
53    12. For a pattern where the match had to start at the beginning or immediately
54        after a newline (e.g /.*anything/ without the DOTALL flag), pcre_exec() and
55        pcre_dfa_exec() could read past the end of the passed subject if there was
56        no match. To help with detecting such bugs (e.g. with valgrind), I modified
57        pcretest so that it places the subject at the end of its malloc-ed buffer.
58    
59    13. The change to pcretest in 12 above threw up a couple more cases when pcre_
60        exec() might read past the end of the data buffer in UTF-8 mode.
61    
62  6.  Minor bugfix in pcrecpp.cc (change "" == ... to NULL == ...).  14. A similar bug to 7.3/2 existed when the PCRE_FIRSTLINE option was set and
63        the data contained the byte 0x85 as part of a UTF-8 character within its
64        first line. This applied both to normal and DFA matching.
65    
66    
67  Version 7.7 07-May-08  Version 7.7 07-May-08

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