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/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <my_global.h>
#include "m_ctype.h"
#ifdef USE_MB
void my_caseup_str_mb(CHARSET_INFO * cs, char *str)
{
register uint32 l;
register char *end=str+strlen(str); /* BAR TODO: remove strlen() call */
register uchar *map=cs->to_upper;
while (*str)
{
if ((l=my_ismbchar(cs, str,end)))
str+=l;
else
{
*str=(char) map[(uchar)*str];
str++;
}
}
}
void my_casedn_str_mb(CHARSET_INFO * cs, char *str)
{
register uint32 l;
register char *end=str+strlen(str);
register uchar *map=cs->to_lower;
while (*str)
{
if ((l=my_ismbchar(cs, str,end)))
str+=l;
else
{
*str=(char) map[(uchar)*str];
str++;
}
}
}
void my_caseup_mb(CHARSET_INFO * cs, char *str, uint length)
{
register uint32 l;
register char *end=str+length;
register uchar *map=cs->to_upper;
while (str<end)
{
if ((l=my_ismbchar(cs, str,end)))
str+=l;
else
{
*str=(char) map[(uchar)*str];
str++;
}
}
}
void my_casedn_mb(CHARSET_INFO * cs, char *str, uint length)
{
register uint32 l;
register char *end=str+length;
register uchar *map=cs->to_lower;
while (str<end)
{
if ((l=my_ismbchar(cs, str,end)))
str+=l;
else
{
*str=(char) map[(uchar)*str];
str++;
}
}
}
int my_strcasecmp_mb(CHARSET_INFO * cs,const char *s, const char *t)
{
register uint32 l;
register const char *end=s+strlen(s);
register uchar *map=cs->to_upper;
while (s<end)
{
if ((l=my_ismbchar(cs, s,end)))
{
while (l--)
if (*s++ != *t++)
return 1;
}
else if (my_ismbhead(cs, *t))
return 1;
else if (map[(uchar) *s++] != map[(uchar) *t++])
return 1;
}
return *t;
}
int my_strncasecmp_mb(CHARSET_INFO * cs,
const char *s, const char *t, uint len)
{
register uint32 l;
register const char *end=s+len;
register uchar *map=cs->to_upper;
while (s<end)
{
if ((l=my_ismbchar(cs, s,end)))
{
while (l--)
if (*s++ != *t++)
return 1;
}
else if (my_ismbhead(cs, *t))
return 1;
else if (map[(uchar) *s++] != map[(uchar) *t++])
return 1;
}
return 0;
}
/*
** Compare string against string with wildcard
** 0 if matched
** -1 if not matched with wildcard
** 1 if matched with wildcard
*/
#define INC_PTR(cs,A,B) A+=((use_mb_flag && \
my_ismbchar(cs,A,B)) ? my_ismbchar(cs,A,B) : 1)
#ifdef LIKE_CMP_TOUPPER
#define likeconv(s,A) (uchar) my_toupper(s,A)
#else
#define likeconv(s,A) (uchar) (s)->sort_order[(uchar) (A)]
#endif
int my_wildcmp_mb(CHARSET_INFO *cs,
const char *str,const char *str_end,
const char *wildstr,const char *wildend,
int escape, int w_one, int w_many)
{
int result= -1; // Not found, using wildcards
bool use_mb_flag=use_mb(cs);
while (wildstr != wildend)
{
while (*wildstr != w_many && *wildstr != w_one)
{
int l;
if (*wildstr == escape && wildstr+1 != wildend)
wildstr++;
if (use_mb_flag &&
(l = my_ismbchar(cs, wildstr, wildend)))
{
if (str+l > str_end || memcmp(str, wildstr, l) != 0)
return 1;
str += l;
wildstr += l;
}
else
if (str == str_end || likeconv(cs,*wildstr++) != likeconv(cs,*str++))
return(1); // No match
if (wildstr == wildend)
return (str != str_end); // Match if both are at end
result=1; // Found an anchor char
}
if (*wildstr == w_one)
{
do
{
if (str == str_end) // Skip one char if possible
return (result);
INC_PTR(cs,str,str_end);
} while (++wildstr < wildend && *wildstr == w_one);
if (wildstr == wildend)
break;
}
if (*wildstr == w_many)
{ // Found w_many
uchar cmp;
const char* mb = wildstr;
int mblen=0;
wildstr++;
/* Remove any '%' and '_' from the wild search string */
for (; wildstr != wildend ; wildstr++)
{
if (*wildstr == w_many)
continue;
if (*wildstr == w_one)
{
if (str == str_end)
return (-1);
INC_PTR(cs,str,str_end);
continue;
}
break; // Not a wild character
}
if (wildstr == wildend)
return(0); // Ok if w_many is last
if (str == str_end)
return -1;
if ((cmp= *wildstr) == escape && wildstr+1 != wildend)
cmp= *++wildstr;
mb=wildstr;
LINT_INIT(mblen);
if (use_mb_flag)
mblen = my_ismbchar(cs, wildstr, wildend);
INC_PTR(cs,wildstr,wildend); // This is compared trough cmp
cmp=likeconv(cs,cmp);
do
{
if (use_mb_flag)
{
for (;;)
{
if (str >= str_end)
return -1;
if (mblen)
{
if (str+mblen <= str_end && memcmp(str, mb, mblen) == 0)
{
str += mblen;
break;
}
}
else if (!my_ismbchar(cs, str, str_end) &&
likeconv(cs,*str) == cmp)
{
str++;
break;
}
INC_PTR(cs,str, str_end);
}
}
else
{
while (str != str_end && likeconv(cs,*str) != cmp)
str++;
if (str++ == str_end) return (-1);
}
{
int tmp=my_wildcmp_mb(cs,str,str_end,wildstr,wildend,escape,w_one,w_many);
if (tmp <= 0)
return (tmp);
}
} while (str != str_end && wildstr[0] != w_many);
return(-1);
}
}
return (str != str_end ? 1 : 0);
}
#endif
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