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/* Copyright (C) 2000-2006 Lavtech.com corp. All rights reserved.
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 "udm_config.h"
#include <stdio.h>
#include <string.h>
#include "udm_uniconv.h"
#include "udm_sgml.h"
/*
Special characters:
0x22 0010.0010 "
0x26 0010.0110 &
0x3C 0011.1100 <
0x3E 0011.1110 >
001?.???0
0xE1 1110.0001 Mask
0x20 0010.0000 Result
*/
#define IS_SPECIAL(x) ((x) == '"' || (x) == '&' || (x) == '<' || (x) == '>')
#define IS_SPECIAL_QUICK(x) ((((x) & 0xE1) == 0x20) && IS_SPECIAL(x))
__C_LINK int __UDMCALL udm_mb_wc_ascii(UDM_CONV *conv, UDM_CHARSET *cs,int *wc,
const unsigned char *str,
const unsigned char *end)
{
if (*str == '&' && (conv->flags & UDM_RECODE_HTML_SPECIAL))
return UdmSGMLScan(wc, str, end);
if (*str > 0x7F)
return UDM_CHARSET_ILSEQ;
*wc= *str;
return 1;
}
__C_LINK int __UDMCALL udm_wc_mb_ascii(UDM_CONV *conv, UDM_CHARSET *cs, int *wc,
unsigned char *s, unsigned char *e)
{
if (*wc > 0x7F)
return UDM_CHARSET_ILUNI;
*s= *wc;
if ((conv->flags & UDM_RECODE_HTML_SPECIAL) && IS_SPECIAL_QUICK(*s))
return UDM_CHARSET_ILUNI;
return 1;
}
__C_LINK int __UDMCALL udm_mb_wc_latin1(UDM_CONV *conv, UDM_CHARSET *cs,int *wc,
const unsigned char *str,
const unsigned char *end)
{
if (*str == '&' && (conv->flags & UDM_RECODE_HTML_SPECIAL))
return UdmSGMLScan(wc, str, end);
*wc= *str;
return 1;
}
__C_LINK int __UDMCALL udm_wc_mb_latin1(UDM_CONV *conv, UDM_CHARSET *cs, int *wc,
unsigned char *s, unsigned char *e)
{
if (*wc > 0xFF)
return UDM_CHARSET_ILUNI;
*s= *wc;
if ((conv->flags & UDM_RECODE_HTML_SPECIAL) && IS_SPECIAL_QUICK(*s))
return UDM_CHARSET_ILUNI;
return 1;
}
__C_LINK int __UDMCALL udm_mb_wc_8bit(UDM_CONV *conv, UDM_CHARSET *cs,int *wc,
const unsigned char *str,
const unsigned char *end)
{
if (*str == '&' && (conv->flags & UDM_RECODE_HTML_SPECIAL))
return UdmSGMLScan(wc, str, end);
*wc= cs->tab_to_uni[*str];
return (!wc[0] && str[0]) ? UDM_CHARSET_ILSEQ : 1;
}
__C_LINK int __UDMCALL udm_wc_mb_8bit(UDM_CONV *conv, UDM_CHARSET *cs, int *wc,
unsigned char *s, unsigned char *e)
{
UDM_UNI_IDX *idx;
for(idx=cs->tab_from_uni; idx->tab ; idx++)
{
if(idx->from <= *wc && idx->to >= *wc)
{
s[0]=idx->tab[*wc - idx->from];
if ((conv->flags & UDM_RECODE_HTML_SPECIAL) && IS_SPECIAL_QUICK(*s))
return UDM_CHARSET_ILUNI;
return (!s[0] && *wc) ? UDM_CHARSET_ILUNI : 1;
}
}
return UDM_CHARSET_ILUNI;
}
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