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#include "wc.h"
#include "gbk.h"
#include "search.h"
#include "wtf.h"
#ifdef USE_UNICODE
#include "ucs.h"
#endif
#include "map/gb2312_gbk.map"
#define C0 WC_GBK_MAP_C0
#define GL WC_GBK_MAP_GL
#define C1 WC_GBK_MAP_C1
#define LB WC_GBK_MAP_LB
#define UB WC_GBK_MAP_UB
#define C80 WC_GBK_MAP_80
wc_uint8 WC_GBK_MAP[ 0x100 ] = {
C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0,
C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0, C0,
GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL,
GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL, GL,
LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB,
LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB,
LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB,
LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, LB, C0,
C80,UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB,
UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, UB, C1,
};
wc_ccs
wc_gb2312_or_gbk(wc_uint16 code) {
return wc_map_range_search(code,
gb2312_gbk_map, N_gb2312_gbk_map)
? WC_CCS_GBK : WC_CCS_GB_2312;
}
wc_wchar_t
wc_gbk_to_cs128w(wc_wchar_t cc)
{
cc.code = WC_GBK_N(cc.code);
if (cc.code < 0x4000)
cc.ccs = WC_CCS_GBK_1;
else {
cc.ccs = WC_CCS_GBK_2;
cc.code -= 0x4000;
}
cc.code = WC_N_CS128W(cc.code);
return cc;
}
wc_wchar_t
wc_cs128w_to_gbk(wc_wchar_t cc)
{
cc.code = WC_CS128W_N(cc.code);
if (cc.ccs == WC_CCS_GBK_2)
cc.code += 0x4000;
cc.ccs = WC_CCS_GBK;
cc.code = WC_N_GBK(cc.code);
return cc;
}
wc_uint32
wc_gbk_to_N(wc_uint32 c)
{
if (c <= 0xA1A0) /* 0x8140 - 0xA1A0 */
return WC_GBK_N(c);
if (c <= 0xA2AA) /* 0xA240 - 0xA2A0, 0xA2A1 - 0xA2AA */
return WC_GBK_N(c) - ((c >> 8) - 0xA1) * 0x5E;
if (c <= 0xA6A0) /* 0xA240 - 0xA6A0 */
return WC_GBK_N(c) - ((c >> 8) - 0xA1) * 0x5E + 0x0A;
if (c <= 0xA6F5) /* 0xA6E0 - 0xA6F5 */
return WC_GBK_N(c) - ((c >> 8) - 0xA1) * 0x5E + 0x0A - 0x3F;
if (c <= 0xA8A0) /* 0xA7A0 - 0xA8A0 */
return WC_GBK_N(c) - ((c >> 8) - 0xA1) * 0x5E + 0x0A + 0x16;
if (c <= 0xA8C0) /* 0xA8BB - 0xA8C0 */
return WC_GBK_N(c) - ((c >> 8) - 0xA1) * 0x5E + 0x0A + 0x16 - 0x1A;
/* 0xA940 - 0xFEA0 */
return WC_GBK_N(c) - ((c >> 8) - 0xA1) * 0x5E + 0x0A + 0x16 + 0x06;
}
Str
wc_conv_from_gbk(Str is, wc_ces ces)
{
Str os;
wc_uchar *sp = (wc_uchar *)is->ptr;
wc_uchar *ep = sp + is->length;
wc_uchar *p;
int state = WC_GBK_NOSTATE;
wc_uint32 gbk;
for (p = sp; p < ep && *p < 0x80; p++)
;
if (p == ep)
return is;
os = Strnew_size(is->length);
if (p > sp)
Strcat_charp_n(os, (char *)is->ptr, (int)(p - sp));
for (; p < ep; p++) {
switch (state) {
case WC_GBK_NOSTATE:
switch (WC_GBK_MAP[*p]) {
case UB:
state = WC_GBK_MBYTE1;
break;
case C80:
wtf_push(os, WC_CCS_GBK_80, *p);
break;
case C1:
wtf_push_unknown(os, p, 1);
break;
default:
Strcat_char(os, (char)*p);
break;
}
break;
case WC_GBK_MBYTE1:
if (WC_GBK_MAP[*p] & LB) {
gbk = ((wc_uint32)*(p-1) << 8) | *p;
if (*(p-1) >= 0xA1 && *p >= 0xA1)
wtf_push(os, wc_gb2312_or_gbk(gbk), gbk);
else
wtf_push(os, WC_CCS_GBK, gbk);
} else
wtf_push_unknown(os, p-1, 2);
state = WC_GBK_NOSTATE;
break;
}
}
switch (state) {
case WC_GBK_MBYTE1:
wtf_push_unknown(os, p-1, 1);
break;
}
return os;
}
void
wc_push_to_gbk(Str os, wc_wchar_t cc, wc_status *st)
{
while (1) {
switch (cc.ccs) {
case WC_CCS_US_ASCII:
Strcat_char(os, (char)cc.code);
return;
case WC_CCS_GB_2312:
Strcat_char(os, (char)((cc.code >> 8) | 0x80));
Strcat_char(os, (char)((cc.code & 0xff) | 0x80));
return;
case WC_CCS_GBK_80:
Strcat_char(os, (char)(cc.code | 0x80));
return;
case WC_CCS_GBK_1:
case WC_CCS_GBK_2:
cc = wc_cs128w_to_gbk(cc);
case WC_CCS_GBK:
Strcat_char(os, (char)(cc.code >> 8));
Strcat_char(os, (char)(cc.code & 0xff));
return;
case WC_CCS_UNKNOWN_W:
if (!WcOption.no_replace)
Strcat_charp(os, WC_REPLACE_W);
return;
case WC_CCS_UNKNOWN:
if (!WcOption.no_replace)
Strcat_charp(os, WC_REPLACE);
return;
default:
#ifdef USE_UNICODE
if (WcOption.ucs_conv)
cc = wc_any_to_any_ces(cc, st);
else
#endif
cc.ccs = WC_CCS_IS_WIDE(cc.ccs) ? WC_CCS_UNKNOWN_W : WC_CCS_UNKNOWN;
continue;
}
}
}
Str
wc_char_conv_from_gbk(wc_uchar c, wc_status *st)
{
static Str os;
static wc_uchar gbku;
wc_uint32 gbk;
if (st->state == -1) {
st->state = WC_GBK_NOSTATE;
os = Strnew_size(8);
}
switch (st->state) {
case WC_GBK_NOSTATE:
switch (WC_GBK_MAP[c]) {
case UB:
gbku = c;
st->state = WC_GBK_MBYTE1;
return NULL;
case C80:
wtf_push(os, WC_CCS_GBK_80, c);
break;
case C1:
break;
default:
Strcat_char(os, (char)c);
break;
}
break;
case WC_GBK_MBYTE1:
if (WC_GBK_MAP[c] & LB) {
gbk = ((wc_uint32)gbku << 8) | c;
if (gbku >= 0xA1 && c >= 0xA1)
wtf_push(os, wc_gb2312_or_gbk(gbk), gbk);
else
wtf_push(os, WC_CCS_GBK, gbk);
}
break;
}
st->state = -1;
return os;
}
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