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Bug#15375 Unassigned multibyte codes are broken

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into parts when converting to Unicode.
m_ctype.h:
  Reorganizing mb_wc return codes to be able
  to return "an unassigned N-byte-long character".
sql_string.cc:
  Adding code to detect and properly handle
  unassigned characters (i.e. the those character
  which are correctly formed according to the 
  character specifications, but don't have Unicode
  mapping).
Many files:
  Fixing conversion function to return new codes.
ctype_ujis.test, ctype_gbk.test, ctype_big5.test:
  Adding a test case.
ctype_ujis.result, ctype_gbk.result, ctype_big5.result:
  Fixing results accordingly.
This commit is contained in:
bar@mysql.com
2005-12-12 21:42:09 +04:00
parent dd7d2d0a11
commit 9ac6e558d4
21 changed files with 122 additions and 56 deletions
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12
sql/sql_string.cc
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@ -806,8 +806,18 @@ copy_and_convert(char *to, uint32 to_length, CHARSET_INFO *to_cs,
from++;
wc= '?';
}
else if (cnvres > MY_CS_TOOSMALL)
{
/*
A correct multibyte sequence detected
But it doesn't have Unicode mapping.
*/
error_count++;
from+= (-cnvres);
wc= '?';
}
else
break; // Impossible char.
break; // Not enough characters
outp:
if ((cnvres= (*wc_mb)(to_cs, wc, (uchar*) to, to_end)) > 0)