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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
/*
* This file is basicly usa7 character sets with some extra functions
* for big5 handling
*/
/*
* This comment is parsed by configure to create ctype.c,
* so don't change it unless you know what you are doing.
*
* .configure. strxfrm_multiply_big5=1
* .configure. mbmaxlen_big5=2
*/
#include <my_global.h>
#include "m_string.h"
#include "m_ctype.h"
/* Support for Chinese(BIG5) characters, by jou@nematic.ieo.nctu.edu.tw
modified by Wei He (hewei@mail.ied.ac.cn) */
#define isbig5head(c) (0xa1<=(uchar)(c) && (uchar)(c)<=0xf9)
#define isbig5tail(c) ((0x40<=(uchar)(c) && (uchar)(c)<=0x7e) || \
(0xa1<=(uchar)(c) && (uchar)(c)<=0xfe))
#define isbig5code(c,d) (isbig5head(c) && isbig5tail(d))
#define big5code(c,d) (((uchar)(c) <<8) | (uchar)(d))
#define big5head(e) ((uchar)(e>>8))
#define big5tail(e) ((uchar)(e&0xff))
uchar NEAR ctype_big5[257] =
{
0, /* For standard library */
32,32,32,32,32,32,32,32,32,40,40,40,40,40,32,32,
32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
72,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,
132,132,132,132,132,132,132,132,132,132,16,16,16,16,16,16,
16,129,129,129,129,129,129,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,16,16,16,16,16,
16,130,130,130,130,130,130,2,2,2,2,2,2,2,2,2,
2,2,2,2,2,2,2,2,2,2,2,16,16,16,16,32,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
};
uchar NEAR to_lower_big5[]=
{
'\000','\001','\002','\003','\004','\005','\006','\007',
'\010','\011','\012','\013','\014','\015','\016','\017',
'\020','\021','\022','\023','\024','\025','\026','\027',
'\030','\031','\032','\033','\034','\035','\036','\037',
' ', '!', '"', '#', '$', '%', '&', '\'',
'(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', ':', ';', '<', '=', '>', '?',
'@', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
'x', 'y', 'z', '[', '\\', ']', '^', '_',
'`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
'x', 'y', 'z', '{', '|', '}', '~', '\177',
(uchar) '\200',(uchar) '\201',(uchar) '\202',(uchar) '\203',(uchar) '\204',(uchar) '\205',(uchar) '\206',(uchar) '\207',
(uchar) '\210',(uchar) '\211',(uchar) '\212',(uchar) '\213',(uchar) '\214',(uchar) '\215',(uchar) '\216',(uchar) '\217',
(uchar) '\220',(uchar) '\221',(uchar) '\222',(uchar) '\223',(uchar) '\224',(uchar) '\225',(uchar) '\226',(uchar) '\227',
(uchar) '\230',(uchar) '\231',(uchar) '\232',(uchar) '\233',(uchar) '\234',(uchar) '\235',(uchar) '\236',(uchar) '\237',
(uchar) '\240',(uchar) '\241',(uchar) '\242',(uchar) '\243',(uchar) '\244',(uchar) '\245',(uchar) '\246',(uchar) '\247',
(uchar) '\250',(uchar) '\251',(uchar) '\252',(uchar) '\253',(uchar) '\254',(uchar) '\255',(uchar) '\256',(uchar) '\257',
(uchar) '\260',(uchar) '\261',(uchar) '\262',(uchar) '\263',(uchar) '\264',(uchar) '\265',(uchar) '\266',(uchar) '\267',
(uchar) '\270',(uchar) '\271',(uchar) '\272',(uchar) '\273',(uchar) '\274',(uchar) '\275',(uchar) '\276',(uchar) '\277',
(uchar) '\300',(uchar) '\301',(uchar) '\302',(uchar) '\303',(uchar) '\304',(uchar) '\305',(uchar) '\306',(uchar) '\307',
(uchar) '\310',(uchar) '\311',(uchar) '\312',(uchar) '\313',(uchar) '\314',(uchar) '\315',(uchar) '\316',(uchar) '\317',
(uchar) '\320',(uchar) '\321',(uchar) '\322',(uchar) '\323',(uchar) '\324',(uchar) '\325',(uchar) '\326',(uchar) '\327',
(uchar) '\330',(uchar) '\331',(uchar) '\332',(uchar) '\333',(uchar) '\334',(uchar) '\335',(uchar) '\336',(uchar) '\337',
(uchar) '\340',(uchar) '\341',(uchar) '\342',(uchar) '\343',(uchar) '\344',(uchar) '\345',(uchar) '\346',(uchar) '\347',
(uchar) '\350',(uchar) '\351',(uchar) '\352',(uchar) '\353',(uchar) '\354',(uchar) '\355',(uchar) '\356',(uchar) '\357',
(uchar) '\360',(uchar) '\361',(uchar) '\362',(uchar) '\363',(uchar) '\364',(uchar) '\365',(uchar) '\366',(uchar) '\367',
(uchar) '\370',(uchar) '\371',(uchar) '\372',(uchar) '\373',(uchar) '\374',(uchar) '\375',(uchar) '\376',(uchar) '\377',
};
uchar NEAR to_upper_big5[]=
{
'\000','\001','\002','\003','\004','\005','\006','\007',
'\010','\011','\012','\013','\014','\015','\016','\017',
'\020','\021','\022','\023','\024','\025','\026','\027',
'\030','\031','\032','\033','\034','\035','\036','\037',
' ', '!', '"', '#', '$', '%', '&', '\'',
'(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', ':', ';', '<', '=', '>', '?',
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
'`', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '{', '|', '}', '~', '\177',
(uchar) '\200',(uchar) '\201',(uchar) '\202',(uchar) '\203',(uchar) '\204',(uchar) '\205',(uchar) '\206',(uchar) '\207',
(uchar) '\210',(uchar) '\211',(uchar) '\212',(uchar) '\213',(uchar) '\214',(uchar) '\215',(uchar) '\216',(uchar) '\217',
(uchar) '\220',(uchar) '\221',(uchar) '\222',(uchar) '\223',(uchar) '\224',(uchar) '\225',(uchar) '\226',(uchar) '\227',
(uchar) '\230',(uchar) '\231',(uchar) '\232',(uchar) '\233',(uchar) '\234',(uchar) '\235',(uchar) '\236',(uchar) '\237',
(uchar) '\240',(uchar) '\241',(uchar) '\242',(uchar) '\243',(uchar) '\244',(uchar) '\245',(uchar) '\246',(uchar) '\247',
(uchar) '\250',(uchar) '\251',(uchar) '\252',(uchar) '\253',(uchar) '\254',(uchar) '\255',(uchar) '\256',(uchar) '\257',
(uchar) '\260',(uchar) '\261',(uchar) '\262',(uchar) '\263',(uchar) '\264',(uchar) '\265',(uchar) '\266',(uchar) '\267',
(uchar) '\270',(uchar) '\271',(uchar) '\272',(uchar) '\273',(uchar) '\274',(uchar) '\275',(uchar) '\276',(uchar) '\277',
(uchar) '\300',(uchar) '\301',(uchar) '\302',(uchar) '\303',(uchar) '\304',(uchar) '\305',(uchar) '\306',(uchar) '\307',
(uchar) '\310',(uchar) '\311',(uchar) '\312',(uchar) '\313',(uchar) '\314',(uchar) '\315',(uchar) '\316',(uchar) '\317',
(uchar) '\320',(uchar) '\321',(uchar) '\322',(uchar) '\323',(uchar) '\324',(uchar) '\325',(uchar) '\326',(uchar) '\327',
(uchar) '\330',(uchar) '\331',(uchar) '\332',(uchar) '\333',(uchar) '\334',(uchar) '\335',(uchar) '\336',(uchar) '\337',
(uchar) '\340',(uchar) '\341',(uchar) '\342',(uchar) '\343',(uchar) '\344',(uchar) '\345',(uchar) '\346',(uchar) '\347',
(uchar) '\350',(uchar) '\351',(uchar) '\352',(uchar) '\353',(uchar) '\354',(uchar) '\355',(uchar) '\356',(uchar) '\357',
(uchar) '\360',(uchar) '\361',(uchar) '\362',(uchar) '\363',(uchar) '\364',(uchar) '\365',(uchar) '\366',(uchar) '\367',
(uchar) '\370',(uchar) '\371',(uchar) '\372',(uchar) '\373',(uchar) '\374',(uchar) '\375',(uchar) '\376',(uchar) '\377',
};
uchar NEAR sort_order_big5[]=
{
'\000','\001','\002','\003','\004','\005','\006','\007',
'\010','\011','\012','\013','\014','\015','\016','\017',
'\020','\021','\022','\023','\024','\025','\026','\027',
'\030','\031','\032','\033','\034','\035','\036','\037',
' ', '!', '"', '#', '$', '%', '&', '\'',
'(', ')', '*', '+', ',', '-', '.', '/',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', ':', ';', '<', '=', '>', '?',
'@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '\\', ']', '[', '^', '_',
'E', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '{', '|', '}', 'Y', '\177',
(uchar) '\200',(uchar) '\201',(uchar) '\202',(uchar) '\203',(uchar) '\204',(uchar) '\205',(uchar) '\206',(uchar) '\207',
(uchar) '\210',(uchar) '\211',(uchar) '\212',(uchar) '\213',(uchar) '\214',(uchar) '\215',(uchar) '\216',(uchar) '\217',
(uchar) '\220',(uchar) '\221',(uchar) '\222',(uchar) '\223',(uchar) '\224',(uchar) '\225',(uchar) '\226',(uchar) '\227',
(uchar) '\230',(uchar) '\231',(uchar) '\232',(uchar) '\233',(uchar) '\234',(uchar) '\235',(uchar) '\236',(uchar) '\237',
(uchar) '\240',(uchar) '\241',(uchar) '\242',(uchar) '\243',(uchar) '\244',(uchar) '\245',(uchar) '\246',(uchar) '\247',
(uchar) '\250',(uchar) '\251',(uchar) '\252',(uchar) '\253',(uchar) '\254',(uchar) '\255',(uchar) '\256',(uchar) '\257',
(uchar) '\260',(uchar) '\261',(uchar) '\262',(uchar) '\263',(uchar) '\264',(uchar) '\265',(uchar) '\266',(uchar) '\267',
(uchar) '\270',(uchar) '\271',(uchar) '\272',(uchar) '\273',(uchar) '\274',(uchar) '\275',(uchar) '\276',(uchar) '\277',
(uchar) '\300',(uchar) '\301',(uchar) '\302',(uchar) '\303',(uchar) '\304',(uchar) '\305',(uchar) '\306',(uchar) '\307',
(uchar) '\310',(uchar) '\311',(uchar) '\312',(uchar) '\313',(uchar) '\314',(uchar) '\315',(uchar) '\316',(uchar) '\317',
(uchar) '\320',(uchar) '\321',(uchar) '\322',(uchar) '\323',(uchar) '\324',(uchar) '\325',(uchar) '\326',(uchar) '\327',
(uchar) '\330',(uchar) '\331',(uchar) '\332',(uchar) '\333',(uchar) '\334',(uchar) '\335',(uchar) '\336',(uchar) '\337',
(uchar) '\340',(uchar) '\341',(uchar) '\342',(uchar) '\343',(uchar) '\344',(uchar) '\345',(uchar) '\346',(uchar) '\347',
(uchar) '\350',(uchar) '\351',(uchar) '\352',(uchar) '\353',(uchar) '\354',(uchar) '\355',(uchar) '\356',(uchar) '\357',
(uchar) '\360',(uchar) '\361',(uchar) '\362',(uchar) '\363',(uchar) '\364',(uchar) '\365',(uchar) '\366',(uchar) '\367',
(uchar) '\370',(uchar) '\371',(uchar) '\372',(uchar) '\373',(uchar) '\374',(uchar) '\375',(uchar) '\376',(uchar) '\377',
};
static uint16 big5strokexfrm(uint16 i)
{
if ((i == 0xA440) || (i == 0xA441)) return 0xA440;
else if (((i >= 0xA442) && (i <= 0xA453)) || ((i >= 0xC940) && (i <= 0xC944))) return 0xA442;
else if (((i >= 0xA454) && (i <= 0xA47E)) || ((i >= 0xC945) && (i <= 0xC94C))) return 0xA454;
else if (((i >= 0xA4A1) && (i <= 0xA4FD)) || ((i >= 0xC94D) && (i <= 0xC962))) return 0xA4A1;
else if (((i >= 0xA4FE) && (i <= 0xA5DF)) || ((i >= 0xC963) && (i <= 0xC9AA))) return 0xA4FE;
else if (((i >= 0xA5E0) && (i <= 0xA6E9)) || ((i >= 0xC9AB) && (i <= 0xCA59))) return 0xA5E0;
else if (((i >= 0xA6EA) && (i <= 0xA8C2)) || ((i >= 0xCA5A) && (i <= 0xCBB0))) return 0xA6EA;
else if ((i == 0xA260) || ((i >= 0xA8C3) && (i <= 0xAB44)) || ((i >= 0xCBB1) && (i <= 0xCDDC))) return 0xA8C3;
else if ((i == 0xA259) || (i == 0xF9DA) || ((i >= 0xAB45) && (i <= 0xADBB)) || ((i >= 0xCDDD) && (i <= 0xD0C7))) return 0xAB45;
else if ((i == 0xA25A) || ((i >= 0xADBC) && (i <= 0xB0AD)) || ((i >= 0xD0C8) && (i <= 0xD44A))) return 0xADBC;
else if ((i == 0xA25B) || (i == 0xA25C) || ((i >= 0xB0AE) && (i <= 0xB3C2)) || ((i >= 0xD44B) && (i <= 0xD850))) return 0xB0AE;
else if ((i == 0xF9DB) || ((i >= 0xB3C3) && (i <= 0xB6C2)) || ((i >= 0xD851) && (i <= 0xDCB0))) return 0xB3C3;
else if ((i == 0xA25D) || (i == 0xA25F) || (i == 0xC6A1) || (i == 0xF9D6) || (i == 0xF9D8) || ((i >= 0xB6C3) && (i <= 0xB9AB)) || ((i >= 0xDCB1) && (i <= 0xE0EF))) return 0xB6C3;
else if ((i == 0xF9DC) || ((i >= 0xB9AC) && (i <= 0xBBF4)) || ((i >= 0xE0F0) && (i <= 0xE4E5))) return 0xB9AC;
else if ((i == 0xA261) || ((i >= 0xBBF5) && (i <= 0xBEA6)) || ((i >= 0xE4E6) && (i <= 0xE8F3))) return 0xBBF5;
else if ((i == 0xA25E) || (i == 0xF9D7) || (i == 0xF9D9) || ((i >= 0xBEA7) && (i <= 0xC074)) || ((i >= 0xE8F4) && (i <= 0xECB8))) return 0xBEA7;
else if (((i >= 0xC075) && (i <= 0xC24E)) || ((i >= 0xECB9) && (i <= 0xEFB6))) return 0xC075;
else if (((i >= 0xC24F) && (i <= 0xC35E)) || ((i >= 0xEFB7) && (i <= 0xF1EA))) return 0xC24F;
else if (((i >= 0xC35F) && (i <= 0xC454)) || ((i >= 0xF1EB) && (i <= 0xF3FC))) return 0xC35F;
else if (((i >= 0xC455) && (i <= 0xC4D6)) || ((i >= 0xF3FD) && (i <= 0xF5BF))) return 0xC455;
else if (((i >= 0xC4D7) && (i <= 0xC56A)) || ((i >= 0xF5C0) && (i <= 0xF6D5))) return 0xC4D7;
else if (((i >= 0xC56B) && (i <= 0xC5C7)) || ((i >= 0xF6D6) && (i <= 0xF7CF))) return 0xC56B;
else if (((i >= 0xC5C8) && (i <= 0xC5F0)) || ((i >= 0xF7D0) && (i <= 0xF8A4))) return 0xC5C8;
else if (((i >= 0xC5F1) && (i <= 0xC654)) || ((i >= 0xF8A5) && (i <= 0xF8ED))) return 0xC5F1;
else if (((i >= 0xC655) && (i <= 0xC664)) || ((i >= 0xF8EE) && (i <= 0xF96A))) return 0xC655;
else if (((i >= 0xC665) && (i <= 0xC66B)) || ((i >= 0xF96B) && (i <= 0xF9A1))) return 0xC665;
else if (((i >= 0xC66C) && (i <= 0xC675)) || ((i >= 0xF9A2) && (i <= 0xF9B9))) return 0xC66C;
else if (((i >= 0xC676) && (i <= 0xC678)) || ((i >= 0xF9BA) && (i <= 0xF9C5))) return 0xC676;
else if (((i >= 0xC679) && (i <= 0xC67C)) || ((i >= 0xF9C7) && (i <= 0xF9CB))) return 0xC679;
else if ((i == 0xC67D) || ((i >= 0xF9CC) && (i <= 0xF9CF))) return 0xC67D;
else if (i == 0xF9D0) return 0xF9D0;
else if ((i == 0xC67E) || (i == 0xF9D1)) return 0xC67E;
else if ((i == 0xF9C6) || (i == 0xF9D2)) return 0xF9C6;
else if (i == 0xF9D3) return 0xF9D3;
else if (i == 0xF9D4) return 0xF9D4;
else if (i == 0xF9D5) return 0xF9D5;
return 0xA140;
}
int my_strnncoll_big5(const uchar * s1, int len1, const uchar * s2, int len2)
{
uint len;
len = min(len1,len2);
while (len--)
{
if ((len > 0) && isbig5code(*s1,*(s1+1)) && isbig5code(*s2, *(s2+1)))
{
if (*s1 != *s2 || *(s1+1) != *(s2+1))
return ((int) big5code(*s1,*(s1+1)) -
(int) big5code(*s2,*(s2+1)));
s1 +=2;
s2 +=2;
len--;
} else if (sort_order_big5[(uchar) *s1++] != sort_order_big5[(uchar) *s2++])
return ((int) sort_order_big5[(uchar) s1[-1]] -
(int) sort_order_big5[(uchar) s2[-1]]);
}
return (int) (len1-len2);
}
int my_strnxfrm_big5(uchar * dest, const uchar * src, int len, int srclen)
{
uint16 e;
/*uchar *d = dest; XXX: unused*/
len = srclen;
while (len--)
{
if ((len > 0) && isbig5code(*src, *(src+1)))
{
e = big5strokexfrm((uint16) big5code(*src, *(src+1)));
*dest++ = big5head(e);
*dest++ = big5tail(e);
src +=2;
len--;
} else
*dest++ = sort_order_big5[(uchar) *src++];
}
return srclen;
}
int my_strcoll_big5(const uchar * s1, const uchar * s2)
{
while (*s1 && *s2)
{
if (*(s1+1) && *(s2+1) && isbig5code(*s1,*(s1+1)) && isbig5code(*s2, *(s2+1)))
{
if (*s1 != *s2 || *(s1+1) != *(s2+1))
return ((int) big5code(*s1,*(s1+1)) -
(int) big5code(*s2,*(s2+1)));
s1 +=2;
s2 +=2;
} else if (sort_order_big5[(uchar) *s1++] != sort_order_big5[(uchar) *s2++])
return ((int) sort_order_big5[(uchar) s1[-1]] -
(int) sort_order_big5[(uchar) s2[-1]]);
}
return 0;
}
int my_strxfrm_big5(uchar * dest, const uchar * src, int len)
{
uint16 e;
uchar *d = dest;
if (len < 1) return 0;
if (!*src)
{
*d = '\0';
return 0;
}
while (*src && (len > 1))
{
if (*(src+1) && isbig5code(*src, *(src+1)))
{
e = big5strokexfrm((uint16) big5code(*src, *(src+1)));
*d++ = big5head(e);
*d++ = big5tail(e);
src +=2;
len--;
} else
*d++ = sort_order_big5[(uchar) *src++];
}
*d = '\0';
return (int) (d-dest);
}
/*
** Calculate min_str and max_str that ranges a LIKE string.
** Arguments:
** ptr Pointer to LIKE string.
** ptr_length Length of LIKE string.
** escape Escape character in LIKE. (Normally '\').
** All escape characters should be removed from min_str and max_str
** res_length Length of min_str and max_str.
** min_str Smallest case sensitive string that ranges LIKE.
** Should be space padded to res_length.
** max_str Largest case sensitive string that ranges LIKE.
** Normally padded with the biggest character sort value.
**
** The function should return 0 if ok and 1 if the LIKE string can't be
** optimized !
*/
#define max_sort_char ((char) 255)
#define wild_one '_'
#define wild_many '%'
my_bool my_like_range_big5(const char *ptr,uint ptr_length,pchar escape,
uint res_length, char *min_str,char *max_str,
uint *min_length,uint *max_length)
{
const char *end=ptr+ptr_length;
char *min_org=min_str;
char *min_end=min_str+res_length;
for (; ptr != end && min_str != min_end ; ptr++)
{
if (ptr+1 != end && isbig5code(ptr[0],ptr[1]))
{
*min_str++= *max_str++ = *ptr++;
*min_str++= *max_str++ = *ptr;
continue;
}
if (*ptr == escape && ptr+1 != end)
{
ptr++; /* Skipp escape */
*min_str++= *max_str++ = *ptr;
continue;
}
if (*ptr == wild_one) /* '_' in SQL */
{
*min_str++='\0'; /* This should be min char */
*max_str++=max_sort_char;
continue;
}
if (*ptr == wild_many) /* '%' in SQL */
{
*min_length= (uint) (min_str-min_org);
*max_length= res_length;
do {
*min_str++ = '\0'; /* Because if key compression */
*max_str++ = max_sort_char;
} while (min_str != min_end);
return 0;
}
*min_str++= *max_str++ = *ptr;
}
*min_length= *max_length= (uint) (min_str-min_org);
while (min_str != min_end)
{
*min_str++ = ' '; /* Because if key compression */
*max_str++ = ' ';
}
return 0;
}
int ismbchar_big5(const char* p, const char *e)
{
return (isbig5head(*(p)) && (e)-(p)>1 && isbig5tail(*((p)+1))? 2: 0);
}
my_bool ismbhead_big5(uint c)
{
return isbig5head(c);
}
int mbcharlen_big5(uint c)
{
return (isbig5head(c)? 2: 0);
}
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