mirror of
https://github.com/python/cpython.git
synced 2025-11-03 23:21:29 +00:00
143 lines
2.5 KiB
C
143 lines
2.5 KiB
C
/*
|
|
* _codecs_hk.c: Codecs collection for encodings from Hong Kong
|
|
*
|
|
* Written by Hye-Shik Chang <perky@FreeBSD.org>
|
|
*/
|
|
|
|
#define USING_IMPORTED_MAPS
|
|
|
|
#include "cjkcodecs.h"
|
|
#include "mappings_hk.h"
|
|
|
|
/*
|
|
* BIG5HKSCS codec
|
|
*/
|
|
|
|
static const encode_map *big5_encmap = NULL;
|
|
static const decode_map *big5_decmap = NULL;
|
|
|
|
CODEC_INIT(big5hkscs)
|
|
{
|
|
static int initialized = 0;
|
|
|
|
if (!initialized && IMPORT_MAP(tw, big5, &big5_encmap, &big5_decmap))
|
|
return -1;
|
|
initialized = 1;
|
|
return 0;
|
|
}
|
|
|
|
ENCODER(big5hkscs)
|
|
{
|
|
while (inleft > 0) {
|
|
ucs4_t c = **inbuf;
|
|
DBCHAR code;
|
|
Py_ssize_t insize;
|
|
|
|
if (c < 0x80) {
|
|
REQUIRE_OUTBUF(1)
|
|
**outbuf = (unsigned char)c;
|
|
NEXT(1, 1)
|
|
continue;
|
|
}
|
|
|
|
DECODE_SURROGATE(c)
|
|
insize = GET_INSIZE(c);
|
|
|
|
REQUIRE_OUTBUF(2)
|
|
|
|
if (c < 0x10000) {
|
|
TRYMAP_ENC(big5hkscs_bmp, code, c);
|
|
else TRYMAP_ENC(big5, code, c);
|
|
else return 1;
|
|
}
|
|
else if (c < 0x20000)
|
|
return insize;
|
|
else if (c < 0x30000) {
|
|
TRYMAP_ENC(big5hkscs_nonbmp, code, c & 0xffff);
|
|
else return insize;
|
|
}
|
|
else
|
|
return insize;
|
|
|
|
OUT1(code >> 8)
|
|
OUT2(code & 0xFF)
|
|
NEXT(insize, 2)
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define BH2S(c1, c2) (((c1) - 0x88) * (0xfe - 0x40 + 1) + ((c2) - 0x40))
|
|
|
|
DECODER(big5hkscs)
|
|
{
|
|
while (inleft > 0) {
|
|
unsigned char c = IN1;
|
|
ucs4_t decoded;
|
|
|
|
REQUIRE_OUTBUF(1)
|
|
|
|
if (c < 0x80) {
|
|
OUT1(c)
|
|
NEXT(1, 1)
|
|
continue;
|
|
}
|
|
|
|
REQUIRE_INBUF(2)
|
|
|
|
if (0xc6 <= c && c <= 0xc8 && (c >= 0xc7 || IN2 >= 0xa1))
|
|
goto hkscsdec;
|
|
|
|
TRYMAP_DEC(big5, **outbuf, c, IN2) {
|
|
NEXT(2, 1)
|
|
}
|
|
else
|
|
hkscsdec: TRYMAP_DEC(big5hkscs, decoded, c, IN2) {
|
|
int s = BH2S(c, IN2);
|
|
const unsigned char *hintbase;
|
|
|
|
assert(0x88 <= c && c <= 0xfe);
|
|
assert(0x40 <= IN2 && IN2 <= 0xfe);
|
|
|
|
if (BH2S(0x88, 0x40) <= s && s <= BH2S(0xa0, 0xfe)) {
|
|
hintbase = big5hkscs_phint_0;
|
|
s -= BH2S(0x88, 0x40);
|
|
}
|
|
else if (BH2S(0xc6,0xa1) <= s && s <= BH2S(0xc8,0xfe)){
|
|
hintbase = big5hkscs_phint_11939;
|
|
s -= BH2S(0xc6, 0xa1);
|
|
}
|
|
else if (BH2S(0xf9,0xd6) <= s && s <= BH2S(0xfe,0xfe)){
|
|
hintbase = big5hkscs_phint_21733;
|
|
s -= BH2S(0xf9, 0xd6);
|
|
}
|
|
else
|
|
return MBERR_INTERNAL;
|
|
|
|
if (hintbase[s >> 3] & (1 << (s & 7))) {
|
|
WRITEUCS4(decoded | 0x20000)
|
|
NEXT_IN(2)
|
|
}
|
|
else {
|
|
OUT1(decoded)
|
|
NEXT(2, 1)
|
|
}
|
|
}
|
|
else return 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
BEGIN_MAPPINGS_LIST
|
|
MAPPING_DECONLY(big5hkscs)
|
|
MAPPING_ENCONLY(big5hkscs_bmp)
|
|
MAPPING_ENCONLY(big5hkscs_nonbmp)
|
|
END_MAPPINGS_LIST
|
|
|
|
BEGIN_CODECS_LIST
|
|
CODEC_STATELESS_WINIT(big5hkscs)
|
|
END_CODECS_LIST
|
|
|
|
I_AM_A_MODULE_FOR(hk)
|