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authorAlexander Barkov <bar@mysql.com>2010-03-11 14:34:11 +0400
committerAlexander Barkov <bar@mysql.com>2010-03-11 14:34:11 +0400
commita388efbffab83e34d3006883dcd1d29b2128545c (patch)
treebf2cc43cccc940c1a6702ba10b12897c9504ba79 /strings
parent99d1b2bd9a8a05d5adc7985bc082456296d2d2b5 (diff)
downloadmariadb-git-a388efbffab83e34d3006883dcd1d29b2128545c.tar.gz
An additional fix for WL#1213 4-byte UTF8
- Fixing crash on attempt to create a fulltext index with an utf8mb4 column - fixing wrong border width for supplementary characters in mysql client: mysql --default-character-set=utf8mb4 -e "select concat(_utf32 0x20000,'a')"
Diffstat (limited to 'strings')
-rw-r--r--strings/ctype-mb.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/strings/ctype-mb.c b/strings/ctype-mb.c
index 98b598c3c2c..b1b381da59e 100644
--- a/strings/ctype-mb.c
+++ b/strings/ctype-mb.c
@@ -1123,8 +1123,16 @@ size_t my_numcells_mb(CHARSET_INFO *cs, const char *b, const char *e)
continue;
}
b+= mb_len;
- pg= (wc >> 8) & 0xFF;
- clen+= utr11_data[pg].p ? utr11_data[pg].p[wc & 0xFF] : utr11_data[pg].page;
+ if (wc > 0xFFFF)
+ {
+ if (wc >= 0x20000 && wc <= 0x3FFFD) /* CJK Ideograph Extension B, C */
+ clen+= 1;
+ }
+ else
+ {
+ pg= (wc >> 8) & 0xFF;
+ clen+= utr11_data[pg].p ? utr11_data[pg].p[wc & 0xFF] : utr11_data[pg].page;
+ }
clen++;
}
return clen;
@@ -1136,7 +1144,7 @@ int my_mb_ctype_mb(CHARSET_INFO *cs, int *ctype,
{
my_wc_t wc;
int res= cs->cset->mb_wc(cs, &wc, s, e);
- if (res <= 0)
+ if (res <= 0 || wc > 0xFFFF)
*ctype= 0;
else
*ctype= my_uni_ctype[wc>>8].ctype ?