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Simple charsets now have strncoll() field too

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This commit is contained in:
bar@bar.mysql.r18.ru
2002-10-09 15:40:57 +05:00
parent 40c0fd1c6c
commit 954a47b95a
16 changed files with 118 additions and 91 deletions
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24
strings/ctype-simple.c
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@ -20,32 +20,30 @@
#include "assert.h"
int my_strnxfrm_simple(CHARSET_INFO * cs,
char *dest, uint len,
const char *src, uint srclen)
uchar *dest, uint len,
const uchar *src, uint srclen)
{
uchar *map= cs->sort_order;
DBUG_ASSERT(len >= srclen);
for ( ; len > 0 ; len-- )
*dest++= (char) map[(uchar) *src++];
*dest++= map[*src++];
return srclen;
}
int my_strnncoll_simple(CHARSET_INFO * cs, const char *s, uint slen,
const char *t, uint tlen)
int my_strnncoll_simple(CHARSET_INFO * cs, const uchar *s, uint slen,
const uchar *t, uint tlen)
{
int len = ( slen > tlen ) ? tlen : slen;
uchar *map= cs->sort_order;
while (len--)
{
if (map[(uchar) *s++] != map[(uchar) *t++])
return ((int) map[(uchar) s[-1]] -
(int) map[(uchar) t[-1]]);
if (map[*s++] != map[*t++])
return ((int) map[s[-1]] - (int) map[t[-1]]);
}
return (int) (slen-tlen);
}
void my_caseup_str_8bit(CHARSET_INFO * cs,char *str)
{
register uchar *map=cs->to_upper;
@ -53,7 +51,6 @@ void my_caseup_str_8bit(CHARSET_INFO * cs,char *str)
str++;
}
void my_casedn_str_8bit(CHARSET_INFO * cs,char *str)
{
register uchar *map=cs->to_lower;
@ -61,7 +58,6 @@ void my_casedn_str_8bit(CHARSET_INFO * cs,char *str)
str++;
}
void my_caseup_8bit(CHARSET_INFO * cs, char *str, uint length)
{
register uchar *map=cs->to_upper;
@ -76,6 +72,12 @@ void my_casedn_8bit(CHARSET_INFO * cs, char *str, uint length)
*str= (char) map[(uchar) *str];
}
void my_tosort_8bit(CHARSET_INFO *cs, char *str, uint length)
{
register uchar *map=cs->sort_order;
for ( ; length>0 ; length--, str++)
*str= (char) map[(uchar) *str];
}
int my_strcasecmp_8bit(CHARSET_INFO * cs,const char *s, const char *t)
{