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http://bugs.exim.org/show_bug.cgi?id=1037
Philip Hazel <ph10@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
--- Comment #2 from Philip Hazel <ph10@???> 2010-11-19 16:54:41 ---
I am sorry, but making this change does not work. The value of ptr must be
increased by the number of additional bytes in the UTF-8 character so that it
ends up pointing to the final byte. I tested your change on a character class
containing the 4 bytes 0x41 0xc4 0xa3 0x42 which are the three characters 'A',
\x{123}, and 'B'. Using pcretest's -b option to show the output, unmodified
PCRE gives this, which is correct:
------------------------------------------------------------------
0 45 Bra
3 ^
4 [AB\x{123}]+
45 45 Ket
48 End
------------------------------------------------------------------
After applying your patch, the result is this, which is wrong:
------------------------------------------------------------------
0 45 Bra
3 ^
4 [AB\xa3\x{123}]+
45 45 Ket
48 End
------------------------------------------------------------------
I am not surprised; I expected it to go wrong.
The problem you had was perhaps because two arguments to GETCHARLEN are ptr.
I am going to close this issue as INVALID, but I will look at your later patch
separately.
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