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#include "wc.h"
#include "big5.h"
#include "hkscs.h"
#include "search.h"
#include "wtf.h"
#ifdef USE_UNICODE
#include "ucs.h"
#endif
#define C0 WC_HKSCS_MAP_C0
#define GL WC_HKSCS_MAP_GL
#define C1 WC_HKSCS_MAP_C1
#define LB WC_HKSCS_MAP_LB
#define UB WC_HKSCS_MAP_UB
#define UH WC_HKSCS_MAP_UH
wc_uint8 WC_HKSCS_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,
C1, C1, C1, C1, C1, C1, C1, C1, UH, UH, UH, UH, UH, UH, UH, UH,
UH, UH, UH, UH, UH, UH, UH, UH, UH, UH, UH, UH, UH, UH, UH, UH,
UH, 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_wchar_t
wc_hkscs_to_cs128w(wc_wchar_t cc)
{
cc.code = WC_HKSCS_N(cc.code);
if (cc.code < 0x4000)
cc.ccs = WC_CCS_HKSCS_1;
else {
cc.ccs = WC_CCS_HKSCS_2;
cc.code -= 0x4000;
}
cc.code = WC_N_CS128W(cc.code);
return cc;
}
wc_wchar_t
wc_cs128w_to_hkscs(wc_wchar_t cc)
{
cc.code = WC_CS128W_N(cc.code);
if (cc.ccs == WC_CCS_HKSCS_2)
cc.code += 0x4000;
cc.ccs = WC_CCS_HKSCS;
cc.code = WC_N_HKSCS(cc.code);
return cc;
}
wc_uint32
wc_hkscs_to_N(wc_uint32 c)
{
if (c < 0xA140) /* 0x8840 - 0xA0FE */
return WC_HKSCS_N(c);
/* 0xFA40 - 0xFEFE */
return WC_HKSCS_N(c) - 0x59 * 0x9D;
}
Str
wc_conv_from_hkscs(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_HKSCS_NOSTATE;
wc_uint32 hkscs;
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_HKSCS_NOSTATE:
switch (WC_HKSCS_MAP[*p]) {
case UB:
case UH:
state = WC_HKSCS_MBYTE1;
break;
case C1:
wtf_push_unknown(os, p, 1);
break;
default:
Strcat_char(os, (char)*p);
break;
}
break;
case WC_HKSCS_MBYTE1:
if (WC_HKSCS_MAP[*p] & LB) {
hkscs = ((wc_uint32)*(p-1) << 8) | *p;
if (*(p-1) >= 0xA1 && *(p-1) <= 0xF9)
wtf_push(os, WC_CCS_BIG5, hkscs);
else
wtf_push(os, WC_CCS_HKSCS, hkscs);
} else
wtf_push_unknown(os, p-1, 2);
state = WC_HKSCS_NOSTATE;
break;
}
}
switch (state) {
case WC_HKSCS_MBYTE1:
wtf_push_unknown(os, p-1, 1);
break;
}
return os;
}
void
wc_push_to_hkscs(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_BIG5_1:
case WC_CCS_BIG5_2:
cc = wc_cs94w_to_big5(cc);
case WC_CCS_BIG5:
Strcat_char(os, (char)(cc.code >> 8));
Strcat_char(os, (char)(cc.code & 0xff));
return;
case WC_CCS_HKSCS_1:
case WC_CCS_HKSCS_2:
cc = wc_cs128w_to_hkscs(cc);
case WC_CCS_HKSCS:
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_hkscs(wc_uchar c, wc_status *st)
{
static Str os;
static wc_uchar hkscsu;
wc_uint32 hkscs;
if (st->state == -1) {
st->state = WC_HKSCS_NOSTATE;
os = Strnew_size(8);
}
switch (st->state) {
case WC_HKSCS_NOSTATE:
switch (WC_HKSCS_MAP[c]) {
case UB:
case UH:
hkscsu = c;
st->state = WC_HKSCS_MBYTE1;
return NULL;
case C1:
break;
default:
Strcat_char(os, (char)c);
break;
}
break;
case WC_HKSCS_MBYTE1:
if (WC_HKSCS_MAP[c] & LB) {
hkscs = ((wc_uint32)hkscsu << 8) | c;
if (hkscsu >= 0xA1 && hkscsu <= 0xF9 && c >= 0xA1)
wtf_push(os, WC_CCS_BIG5, hkscs);
else
wtf_push(os, WC_CCS_HKSCS, hkscs);
}
break;
}
st->state = -1;
return os;
}
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