cosmopolitan/third_party/python/Modules/cjkcodecs/_codecs_jp.c
Justine Tunney 559b024e1d Decentralize Python native module linkage
We can now link even smaller Python binaries. For example, the hello.com
program in the Python build directory is a compiled linked executable of
hello.py which just prints hello world. Using decentralized sections, we
can make that binary 1.9mb in size (noting that python.com is 6.3 megs!)

This works for nontrivial programs too. For example, say we want an APE
binary that's equivalent to python.com -m http.server. Our makefile now
builds such a binary using the new launcher and it's only 3.2mb in size
since Python sources get turned into ELF objects, which tell our linker
that we need things like native hashing algorithm code.
2021-09-07 11:40:11 -07:00

788 lines
22 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=4 sts=4 sw=4 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Python 3 │
│ https://docs.python.org/3/license.html │
╚─────────────────────────────────────────────────────────────────────────────*/
/* clang-format off */
/*
* _codecs_jp.c: Codecs collection for Japanese encodings
*
* Written by Hye-Shik "Bourne to Macro" Chang <perky@FreeBSD.org>
*/
#define USING_BINARY_PAIR_SEARCH
#define EMPBASE 0x20000
#include "third_party/python/Modules/cjkcodecs/cjkcodecs.h"
#include "third_party/python/Modules/cjkcodecs/mappings_jp.inc"
#include "third_party/python/Modules/cjkcodecs/mappings_jisx0213_pair.inc"
#include "third_party/python/Modules/cjkcodecs/alg_jisx0201.inc"
#include "third_party/python/Include/yoink.h"
#include "third_party/python/Include/import.h"
#include "third_party/python/Modules/cjkcodecs/emu_jisx0213_2000.inc"
PYTHON_PROVIDE("_codecs_jp");
PYTHON_PROVIDE("_codecs_jp.__map_cp932ext");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0208");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0212");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_1_bmp");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_1_emp");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_2_bmp");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_2_emp");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_bmp");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_emp");
PYTHON_PROVIDE("_codecs_jp.__map_jisx0213_pair");
PYTHON_PROVIDE("_codecs_jp.__map_jisxcommon");
PYTHON_PROVIDE("_codecs_jp.getcodec");
/*
* CP932 codec
*/
ENCODER(cp932)
{
while (*inpos < inlen) {
Py_UCS4 c = INCHAR1;
DBCHAR code;
unsigned char c1, c2;
if (c <= 0x80) {
WRITEBYTE1((unsigned char)c);
NEXT(1, 1);
continue;
}
else if (c >= 0xff61 && c <= 0xff9f) {
WRITEBYTE1(c - 0xfec0);
NEXT(1, 1);
continue;
}
else if (c >= 0xf8f0 && c <= 0xf8f3) {
/* Windows compatibility */
REQUIRE_OUTBUF(1);
if (c == 0xf8f0)
OUTBYTE1(0xa0);
else
OUTBYTE1(c - 0xf8f1 + 0xfd);
NEXT(1, 1);
continue;
}
if (c > 0xFFFF)
return 1;
REQUIRE_OUTBUF(2);
if (TRYMAP_ENC(cp932ext, code, c)) {
OUTBYTE1(code >> 8);
OUTBYTE2(code & 0xff);
}
else if (TRYMAP_ENC(jisxcommon, code, c)) {
if (code & 0x8000) /* MSB set: JIS X 0212 */
return 1;
/* JIS X 0208 */
c1 = code >> 8;
c2 = code & 0xff;
c2 = (((c1 - 0x21) & 1) ? 0x5e : 0) + (c2 - 0x21);
c1 = (c1 - 0x21) >> 1;
OUTBYTE1(c1 < 0x1f ? c1 + 0x81 : c1 + 0xc1);
OUTBYTE2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41);
}
else if (c >= 0xe000 && c < 0xe758) {
/* User-defined area */
c1 = (Py_UCS4)(c - 0xe000) / 188;
c2 = (Py_UCS4)(c - 0xe000) % 188;
OUTBYTE1(c1 + 0xf0);
OUTBYTE2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41);
}
else
return 1;
NEXT(1, 2);
}
return 0;
}
DECODER(cp932)
{
while (inleft > 0) {
unsigned char c = INBYTE1, c2;
Py_UCS4 decoded;
if (c <= 0x80) {
OUTCHAR(c);
NEXT_IN(1);
continue;
}
else if (c >= 0xa0 && c <= 0xdf) {
if (c == 0xa0)
OUTCHAR(0xf8f0); /* half-width katakana */
else
OUTCHAR(0xfec0 + c);
NEXT_IN(1);
continue;
}
else if (c >= 0xfd/* && c <= 0xff*/) {
/* Windows compatibility */
OUTCHAR(0xf8f1 - 0xfd + c);
NEXT_IN(1);
continue;
}
REQUIRE_INBUF(2);
c2 = INBYTE2;
if (TRYMAP_DEC(cp932ext, decoded, c, c2))
OUTCHAR(decoded);
else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xea)){
if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc)
return 1;
c = (c < 0xe0 ? c - 0x81 : c - 0xc1);
c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41);
c = (2 * c + (c2 < 0x5e ? 0 : 1) + 0x21);
c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21;
if (TRYMAP_DEC(jisx0208, decoded, c, c2))
OUTCHAR(decoded);
else
return 1;
}
else if (c >= 0xf0 && c <= 0xf9) {
if ((c2 >= 0x40 && c2 <= 0x7e) ||
(c2 >= 0x80 && c2 <= 0xfc))
OUTCHAR(0xe000 + 188 * (c - 0xf0) +
(c2 < 0x80 ? c2 - 0x40 : c2 - 0x41));
else
return 1;
}
else
return 1;
NEXT_IN(2);
}
return 0;
}
/*
* EUC-JIS-2004 codec
*/
ENCODER(euc_jis_2004)
{
while (*inpos < inlen) {
Py_UCS4 c = INCHAR1;
DBCHAR code;
Py_ssize_t insize;
if (c < 0x80) {
WRITEBYTE1(c);
NEXT(1, 1);
continue;
}
insize = 1;
if (c <= 0xFFFF) {
EMULATE_JISX0213_2000_ENCODE_BMP(code, c)
else if (TRYMAP_ENC(jisx0213_bmp, code, c)) {
if (code == MULTIC) {
if (inlen - *inpos < 2) {
if (flags & MBENC_FLUSH) {
code = find_pairencmap(
(ucs2_t)c, 0,
jisx0213_pair_encmap,
JISX0213_ENCPAIRS);
if (code == DBCINV)
return 1;
}
else
return MBERR_TOOFEW;
}
else {
Py_UCS4 c2 = INCHAR2;
code = find_pairencmap(
(ucs2_t)c, c2,
jisx0213_pair_encmap,
JISX0213_ENCPAIRS);
if (code == DBCINV) {
code = find_pairencmap(
(ucs2_t)c, 0,
jisx0213_pair_encmap,
JISX0213_ENCPAIRS);
if (code == DBCINV)
return 1;
} else
insize = 2;
}
}
}
else if (TRYMAP_ENC(jisxcommon, code, c))
;
else if (c >= 0xff61 && c <= 0xff9f) {
/* JIS X 0201 half-width katakana */
WRITEBYTE2(0x8e, c - 0xfec0);
NEXT(1, 2);
continue;
}
else if (c == 0xff3c)
/* F/W REVERSE SOLIDUS (see NOTES) */
code = 0x2140;
else if (c == 0xff5e)
/* F/W TILDE (see NOTES) */
code = 0x2232;
else
return 1;
}
else if (c >> 16 == EMPBASE >> 16) {
EMULATE_JISX0213_2000_ENCODE_EMP(code, c)
else if (TRYMAP_ENC(jisx0213_emp, code, c & 0xffff))
;
else
return insize;
}
else
return insize;
if (code & 0x8000) {
/* Codeset 2 */
WRITEBYTE3(0x8f, code >> 8, (code & 0xFF) | 0x80);
NEXT(insize, 3);
} else {
/* Codeset 1 */
WRITEBYTE2((code >> 8) | 0x80, (code & 0xFF) | 0x80);
NEXT(insize, 2);
}
}
return 0;
}
DECODER(euc_jis_2004)
{
while (inleft > 0) {
unsigned char c = INBYTE1;
Py_UCS4 code, decoded;
if (c < 0x80) {
OUTCHAR(c);
NEXT_IN(1);
continue;
}
if (c == 0x8e) {
/* JIS X 0201 half-width katakana */
unsigned char c2;
REQUIRE_INBUF(2);
c2 = INBYTE2;
if (c2 >= 0xa1 && c2 <= 0xdf) {
OUTCHAR(0xfec0 + c2);
NEXT_IN(2);
}
else
return 1;
}
else if (c == 0x8f) {
unsigned char c2, c3;
REQUIRE_INBUF(3);
c2 = INBYTE2 ^ 0x80;
c3 = INBYTE3 ^ 0x80;
/* JIS X 0213 Plane 2 or JIS X 0212 (see NOTES) */
EMULATE_JISX0213_2000_DECODE_PLANE2(writer, c2, c3)
else if (TRYMAP_DEC(jisx0213_2_bmp, decoded, c2, c3))
OUTCHAR(decoded);
else if (TRYMAP_DEC(jisx0213_2_emp, code, c2, c3)) {
OUTCHAR(EMPBASE | code);
NEXT_IN(3);
continue;
}
else if (TRYMAP_DEC(jisx0212, decoded, c2, c3))
OUTCHAR(decoded);
else
return 1;
NEXT_IN(3);
}
else {
unsigned char c2;
REQUIRE_INBUF(2);
c ^= 0x80;
c2 = INBYTE2 ^ 0x80;
/* JIS X 0213 Plane 1 */
EMULATE_JISX0213_2000_DECODE_PLANE1(writer, c, c2)
else if (c == 0x21 && c2 == 0x40)
OUTCHAR(0xff3c);
else if (c == 0x22 && c2 == 0x32)
OUTCHAR(0xff5e);
else if (TRYMAP_DEC(jisx0208, decoded, c, c2))
OUTCHAR(decoded);
else if (TRYMAP_DEC(jisx0213_1_bmp, decoded, c, c2))
OUTCHAR(decoded);
else if (TRYMAP_DEC(jisx0213_1_emp, code, c, c2)) {
OUTCHAR(EMPBASE | code);
NEXT_IN(2);
continue;
}
else if (TRYMAP_DEC(jisx0213_pair, code, c, c2)) {
OUTCHAR2(code >> 16, code & 0xffff);
NEXT_IN(2);
continue;
}
else
return 1;
NEXT_IN(2);
}
}
return 0;
}
/*
* EUC-JP codec
*/
ENCODER(euc_jp)
{
while (*inpos < inlen) {
Py_UCS4 c = INCHAR1;
DBCHAR code;
if (c < 0x80) {
WRITEBYTE1((unsigned char)c);
NEXT(1, 1);
continue;
}
if (c > 0xFFFF)
return 1;
if (TRYMAP_ENC(jisxcommon, code, c))
;
else if (c >= 0xff61 && c <= 0xff9f) {
/* JIS X 0201 half-width katakana */
WRITEBYTE2(0x8e, c - 0xfec0);
NEXT(1, 2);
continue;
}
#ifndef STRICT_BUILD
else if (c == 0xff3c) /* FULL-WIDTH REVERSE SOLIDUS */
code = 0x2140;
else if (c == 0xa5) { /* YEN SIGN */
WRITEBYTE1(0x5c);
NEXT(1, 1);
continue;
} else if (c == 0x203e) { /* OVERLINE */
WRITEBYTE1(0x7e);
NEXT(1, 1);
continue;
}
#endif
else
return 1;
if (code & 0x8000) {
/* JIS X 0212 */
WRITEBYTE3(0x8f, code >> 8, (code & 0xFF) | 0x80);
NEXT(1, 3);
} else {
/* JIS X 0208 */
WRITEBYTE2((code >> 8) | 0x80, (code & 0xFF) | 0x80);
NEXT(1, 2);
}
}
return 0;
}
DECODER(euc_jp)
{
while (inleft > 0) {
unsigned char c = INBYTE1;
Py_UCS4 decoded;
if (c < 0x80) {
OUTCHAR(c);
NEXT_IN(1);
continue;
}
if (c == 0x8e) {
/* JIS X 0201 half-width katakana */
unsigned char c2;
REQUIRE_INBUF(2);
c2 = INBYTE2;
if (c2 >= 0xa1 && c2 <= 0xdf) {
OUTCHAR(0xfec0 + c2);
NEXT_IN(2);
}
else
return 1;
}
else if (c == 0x8f) {
unsigned char c2, c3;
REQUIRE_INBUF(3);
c2 = INBYTE2;
c3 = INBYTE3;
/* JIS X 0212 */
if (TRYMAP_DEC(jisx0212, decoded, c2 ^ 0x80, c3 ^ 0x80)) {
OUTCHAR(decoded);
NEXT_IN(3);
}
else
return 1;
}
else {
unsigned char c2;
REQUIRE_INBUF(2);
c2 = INBYTE2;
/* JIS X 0208 */
#ifndef STRICT_BUILD
if (c == 0xa1 && c2 == 0xc0)
/* FULL-WIDTH REVERSE SOLIDUS */
OUTCHAR(0xff3c);
else
#endif
if (TRYMAP_DEC(jisx0208, decoded, c ^ 0x80, c2 ^ 0x80))
OUTCHAR(decoded);
else
return 1;
NEXT_IN(2);
}
}
return 0;
}
/*
* SHIFT_JIS codec
*/
ENCODER(shift_jis)
{
while (*inpos < inlen) {
Py_UCS4 c = INCHAR1;
DBCHAR code;
unsigned char c1, c2;
#ifdef STRICT_BUILD
JISX0201_R_ENCODE(c, code)
#else
if (c < 0x80)
code = c;
else if (c == 0x00a5)
code = 0x5c; /* YEN SIGN */
else if (c == 0x203e)
code = 0x7e; /* OVERLINE */
#endif
else JISX0201_K_ENCODE(c, code)
else if (c > 0xFFFF)
return 1;
else
code = NOCHAR;
if (code < 0x80 || (code >= 0xa1 && code <= 0xdf)) {
REQUIRE_OUTBUF(1);
OUTBYTE1((unsigned char)code);
NEXT(1, 1);
continue;
}
REQUIRE_OUTBUF(2);
if (code == NOCHAR) {
if (TRYMAP_ENC(jisxcommon, code, c))
;
#ifndef STRICT_BUILD
else if (c == 0xff3c)
code = 0x2140; /* FULL-WIDTH REVERSE SOLIDUS */
#endif
else
return 1;
if (code & 0x8000) /* MSB set: JIS X 0212 */
return 1;
}
c1 = code >> 8;
c2 = code & 0xff;
c2 = (((c1 - 0x21) & 1) ? 0x5e : 0) + (c2 - 0x21);
c1 = (c1 - 0x21) >> 1;
OUTBYTE1(c1 < 0x1f ? c1 + 0x81 : c1 + 0xc1);
OUTBYTE2(c2 < 0x3f ? c2 + 0x40 : c2 + 0x41);
NEXT(1, 2);
}
return 0;
}
DECODER(shift_jis)
{
while (inleft > 0) {
unsigned char c = INBYTE1;
Py_UCS4 decoded;
#ifdef STRICT_BUILD
JISX0201_R_DECODE(c, writer)
#else
if (c < 0x80)
OUTCHAR(c);
#endif
else JISX0201_K_DECODE(c, writer)
else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xea)){
unsigned char c1, c2;
REQUIRE_INBUF(2);
c2 = INBYTE2;
if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc)
return 1;
c1 = (c < 0xe0 ? c - 0x81 : c - 0xc1);
c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41);
c1 = (2 * c1 + (c2 < 0x5e ? 0 : 1) + 0x21);
c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21;
#ifndef STRICT_BUILD
if (c1 == 0x21 && c2 == 0x40) {
/* FULL-WIDTH REVERSE SOLIDUS */
OUTCHAR(0xff3c);
NEXT_IN(2);
continue;
}
#endif
if (TRYMAP_DEC(jisx0208, decoded, c1, c2)) {
OUTCHAR(decoded);
NEXT_IN(2);
continue;
}
else
return 1;
}
else
return 1;
NEXT_IN(1); /* JIS X 0201 */
}
return 0;
}
/*
* SHIFT_JIS-2004 codec
*/
ENCODER(shift_jis_2004)
{
while (*inpos < inlen) {
Py_UCS4 c = INCHAR1;
DBCHAR code = NOCHAR;
int c1, c2;
Py_ssize_t insize;
JISX0201_ENCODE(c, code)
if (code < 0x80 || (code >= 0xa1 && code <= 0xdf)) {
WRITEBYTE1((unsigned char)code);
NEXT(1, 1);
continue;
}
REQUIRE_OUTBUF(2);
insize = 1;
if (code == NOCHAR) {
if (c <= 0xffff) {
EMULATE_JISX0213_2000_ENCODE_BMP(code, c)
else if (TRYMAP_ENC(jisx0213_bmp, code, c)) {
if (code == MULTIC) {
if (inlen - *inpos < 2) {
if (flags & MBENC_FLUSH) {
code = find_pairencmap
((ucs2_t)c, 0,
jisx0213_pair_encmap,
JISX0213_ENCPAIRS);
if (code == DBCINV)
return 1;
}
else
return MBERR_TOOFEW;
}
else {
Py_UCS4 ch2 = INCHAR2;
code = find_pairencmap(
(ucs2_t)c, ch2,
jisx0213_pair_encmap,
JISX0213_ENCPAIRS);
if (code == DBCINV) {
code = find_pairencmap(
(ucs2_t)c, 0,
jisx0213_pair_encmap,
JISX0213_ENCPAIRS);
if (code == DBCINV)
return 1;
}
else
insize = 2;
}
}
}
else if (TRYMAP_ENC(jisxcommon, code, c)) {
/* abandon JIS X 0212 codes */
if (code & 0x8000)
return 1;
}
else
return 1;
}
else if (c >> 16 == EMPBASE >> 16) {
EMULATE_JISX0213_2000_ENCODE_EMP(code, c)
else if (TRYMAP_ENC(jisx0213_emp, code, c&0xffff))
;
else
return insize;
}
else
return insize;
}
c1 = code >> 8;
c2 = (code & 0xff) - 0x21;
if (c1 & 0x80) {
/* Plane 2 */
if (c1 >= 0xee)
c1 -= 0x87;
else if (c1 >= 0xac || c1 == 0xa8)
c1 -= 0x49;
else
c1 -= 0x43;
}
else {
/* Plane 1 */
c1 -= 0x21;
}
if (c1 & 1)
c2 += 0x5e;
c1 >>= 1;
OUTBYTE1(c1 + (c1 < 0x1f ? 0x81 : 0xc1));
OUTBYTE2(c2 + (c2 < 0x3f ? 0x40 : 0x41));
NEXT(insize, 2);
}
return 0;
}
DECODER(shift_jis_2004)
{
while (inleft > 0) {
unsigned char c = INBYTE1;
JISX0201_DECODE(c, writer)
else if ((c >= 0x81 && c <= 0x9f) || (c >= 0xe0 && c <= 0xfc)){
unsigned char c1, c2;
Py_UCS4 code, decoded;
REQUIRE_INBUF(2);
c2 = INBYTE2;
if (c2 < 0x40 || (c2 > 0x7e && c2 < 0x80) || c2 > 0xfc)
return 1;
c1 = (c < 0xe0 ? c - 0x81 : c - 0xc1);
c2 = (c2 < 0x80 ? c2 - 0x40 : c2 - 0x41);
c1 = (2 * c1 + (c2 < 0x5e ? 0 : 1));
c2 = (c2 < 0x5e ? c2 : c2 - 0x5e) + 0x21;
if (c1 < 0x5e) { /* Plane 1 */
c1 += 0x21;
EMULATE_JISX0213_2000_DECODE_PLANE1(writer,
c1, c2)
else if (TRYMAP_DEC(jisx0208, decoded, c1, c2))
OUTCHAR(decoded);
else if (TRYMAP_DEC(jisx0213_1_bmp, decoded, c1, c2))
OUTCHAR(decoded);
else if (TRYMAP_DEC(jisx0213_1_emp, code, c1, c2))
OUTCHAR(EMPBASE | code);
else if (TRYMAP_DEC(jisx0213_pair, code, c1, c2))
OUTCHAR2(code >> 16, code & 0xffff);
else
return 1;
NEXT_IN(2);
}
else { /* Plane 2 */
if (c1 >= 0x67)
c1 += 0x07;
else if (c1 >= 0x63 || c1 == 0x5f)
c1 -= 0x37;
else
c1 -= 0x3d;
EMULATE_JISX0213_2000_DECODE_PLANE2(writer,
c1, c2)
else if (TRYMAP_DEC(jisx0213_2_bmp, decoded, c1, c2))
OUTCHAR(decoded);
else if (TRYMAP_DEC(jisx0213_2_emp, code, c1, c2)) {
OUTCHAR(EMPBASE | code);
NEXT_IN(2);
continue;
}
else
return 1;
NEXT_IN(2);
}
continue;
}
else
return 1;
NEXT_IN(1); /* JIS X 0201 */
}
return 0;
}
BEGIN_MAPPINGS_LIST
MAPPING_DECONLY(jisx0208)
MAPPING_DECONLY(jisx0212)
MAPPING_ENCONLY(jisxcommon)
MAPPING_DECONLY(jisx0213_1_bmp)
MAPPING_DECONLY(jisx0213_2_bmp)
MAPPING_ENCONLY(jisx0213_bmp)
MAPPING_DECONLY(jisx0213_1_emp)
MAPPING_DECONLY(jisx0213_2_emp)
MAPPING_ENCONLY(jisx0213_emp)
MAPPING_ENCDEC(jisx0213_pair)
MAPPING_ENCDEC(cp932ext)
END_MAPPINGS_LIST
BEGIN_CODECS_LIST
CODEC_STATELESS(shift_jis)
CODEC_STATELESS(cp932)
CODEC_STATELESS(euc_jp)
CODEC_STATELESS(shift_jis_2004)
CODEC_STATELESS(euc_jis_2004)
{ "euc_jisx0213", (void *)2000, NULL, _STATELESS_METHODS(euc_jis_2004) },
{ "shift_jisx0213", (void *)2000, NULL, _STATELESS_METHODS(shift_jis_2004) },
END_CODECS_LIST
I_AM_A_MODULE_FOR(jp)
_Section(".rodata.pytab.1") const struct _inittab _PyImport_Inittab__codecs_jp = {
"_codecs_jp",
PyInit__codecs_jp,
};