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cosmopolitan/third_party/python/Modules/cjkcodecs/_codecs_hk.c
Justine Tunney 47a53e143b Productionize new APE loader and more 
The APE_NO_MODIFY_SELF loader payload has been moved out of the examples
folder and improved so that it works on BSD systems, and permits general
elf program headers. This brings its quality up enough that it should be
acceptable to use by default for many programs, e.g. Python, Lua, SQLite
and Python. It's the responsibility of the user to define an appropriate
TMPDIR if /tmp is considered an adversarial environment. Mac OS shall be
supported by APE_NO_MODIFY_SELF soon.

Fixes and improvements have been made to program_executable_name as it's
now the one true way to get the absolute path of the executing image.

This change fixes a memory leak in linenoise history loading, introduced
by performance optimizations in 51904e2687
This change fixes a longstanding regression with Mach system calls, that
23ae9dfceb back in February which impacted
our sched_yield() implementation, which is why no one noticed until now.

The Blinkenlights PC emulator has been improved. We now fix rendering on
XNU and BSD by not making the assumption that the kernel terminal driver
understands UTF8 since that seems to break its internal modeling of \r\n
which is now being addressed by using \e[𝑦H instead. The paneling is now
more compact in real mode so you won't need to make your font as tiny if
you're only emulating an 8086 program. The CLMUL ISA is now emulated too

This change also makes improvement to time. CLOCK_MONOTONIC now does the
right thing on Windows NT. The nanosecond time module functions added in
Python 3.7 have been backported.

This change doubles the performance of Argon2 password stretching simply
by not using its copy_block and xor_block helper functions, as they were
trivial to inline thus resulting in us needing to iterate over each 1024
byte block four fewer times.

This change makes code size improvements. _PyUnicode_ToNumeric() was 64k
in size and now it's 10k. The CJK codec lookup tables now use lazy delta
zigzag deflate (δzd) encoding which reduces their size from 600k to 200k
plus the code bloat caused by macro abuse in _decimal.c is now addressed
so our fully-loaded statically-linked hermetically-sealed Python virtual
interpreter container is now 9.4 megs in the default build mode and 5.5m
in MODE=tiny which leaves plenty of room for chibicc.

The pydoc web server now accommodates the use case of people who work by
SSH'ing into a different machine w/ python.com -m pydoc -p8080 -h0.0.0.0

Finally Python Capsulae delenda est and won't be supported in the future
2021-10-02 08:27:03 -07:00

242 lines
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/*-*- 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 │
╚─────────────────────────────────────────────────────────────────────────────*/
#define USING_IMPORTED_MAPS
#include "third_party/python/Include/import.h"
#include "third_party/python/Include/yoink.h"
#include "third_party/python/Modules/cjkcodecs/cjkcodecs.h"
#include "third_party/python/Modules/cjkcodecs/somanyencodings.h"
/* clang-format off */
PYTHON_PROVIDE("_codecs_hk");
PYTHON_PROVIDE("_codecs_hk.__map_big5hkscs");
PYTHON_PROVIDE("_codecs_hk.__map_big5hkscs_bmp");
PYTHON_PROVIDE("_codecs_hk.__map_big5hkscs_nonbmp");
PYTHON_PROVIDE("_codecs_hk.getcodec");
/*
* _codecs_hk.c: Codecs collection for encodings from Hong Kong
*
* Written by Hye-Shik "Bourne to Macro" Chang <perky@FreeBSD.org>
*/
static const unsigned char big5hkscs_phint_0[] = {
32,5,95,68,15,82,130,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,208,44,4,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,192,0,4,0,0,0,0,0,0,0,0,0,0,0,0,1,22,0,15,0,0,0,0,0,
32,87,43,247,252,110,242,144,11,0,0,0,192,237,164,15,38,193,155,118,242,239,
222,251,250,247,15,50,68,175,254,239,5,0,0,0,224,251,71,128,193,2,0,132,100,4,
130,64,32,162,130,133,164,145,0,16,1,0,0,0,144,72,12,0,48,0,84,3,48,68,24,19,
53,137,38,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,64,0,32,43,153,32,16,99,40,36,
1,0,0,0,0,80,96,212,0,210,42,24,157,104,53,151,79,216,248,32,196,130,28,40,2,
0,0,0,0,214,81,10,224,0,129,134,22,67,196,53,17,55,96,230,122,109,5,12,61,0,0,
0,0,153,57,128,7,34,254,129,144,24,144,12,116,48,208,160,9,41,21,253,4,0,0,0,
0,223,128,64,8,8,176,219,196,96,237,118,125,249,29,228,211,133,166,205,5,0,0,
0,0,12,0,110,186,9,47,96,84,0,30,120,104,34,112,86,158,37,243,142,7,0,0,0,192,
94,44,188,155,223,93,108,109,4,67,96,54,74,96,216,62,7,196,200,1,0,0,0,160,
177,197,98,11,12,34,62,204,37,184,1,174,237,92,104,13,148,74,181,0,0,0,0,0,
244,3,18,17,16,68,2,53,144,235,14,153,7,209,202,5,130,161,160,0,0,0,0,52,24,
160,137,231,156,91,8,132,3,2,218,144,236,219,135,133,191,162,45,0,0,0,0,118,
58,118,98,130,148,24,1,24,125,254,141,87,39,19,210,91,55,25,12,0,0,0,0,110,
139,33,145,0,0,0,64,0,0,0,2,0,0,0,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,
0,0,0,0,0,0,0,2,0,0,0,0,0,0,142,120,110,95,63,126,221,61,247,252,155,252,174,
210,255,143,107,1,0,0,0,192,159,255,234,186,186,93,188,115,159,250,216,214,
222,37,75,94,151,218,42,1,0,0,0,224,182,153,27,216,116,230,79,21,191,41,230,
255,38,117,109,227,255,155,82,0,0,0,0,80,96,126,111,153,169,80,14,0,128,16,
216,35,0,37,16,144,244,235,117,0,0,0,0,208,219,0,160,152,178,123,6,82,32,152,
22,200,61,9,0,0,1,0,0,0,0,0,0,0,4,40,200,34,0,2,0,0,16,32,130,80,64,48,1,0,16,
0,4,0,0,0,0,74,4,1,16,20,0,128,0,4,255,253,36,
};
static const unsigned char big5hkscs_phint_12130[] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,128,2,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,
};
static const unsigned char big5hkscs_phint_21924[] = {
0,0,0,0,0,26,172,248,250,90,192,250,51,0,0,0,0,0,129,0,160,156,130,144,9,1,
180,192,176,3,86,2,160,66,45,136,1,0,0,0,0,146,119,139,96,5,201,33,6,70,56,96,
72,192,180,36,222,132,224,192,36,0,0,0,0,205,80,197,52,192,40,162,173,124,153,
24,88,18,34,196,66,162,83,142,30,0,0,0,128,52,135,11,21,209,64,250,61,0,4,210,
5,72,8,22,230,28,165,0,8,0,0,0,192,45,22,20,128,24,58,212,25,136,28,138,4,
};
/*
* BIG5HKSCS codec
*/
CODEC_INIT(big5hkscs)
{
return 0;
}
/*
* There are four possible pair unicode -> big5hkscs maps as in HKSCS 2004:
* U+00CA U+0304 -> 8862 (U+00CA alone is mapped to 8866)
* U+00CA U+030C -> 8864
* U+00EA U+0304 -> 88a3 (U+00EA alone is mapped to 88a7)
* U+00EA U+030C -> 88a5
* These are handled by not mapping tables but a hand-written code.
*/
static const DBCHAR big5hkscs_pairenc_table[4] = {0x8862, 0x8864, 0x88a3, 0x88a5};
ENCODER(big5hkscs)
{
while (*inpos < inlen) {
Py_UCS4 c = INCHAR1;
DBCHAR code;
Py_ssize_t insize;
if (c < 0x80) {
REQUIRE_OUTBUF(1);
**outbuf = (unsigned char)c;
NEXT(1, 1);
continue;
}
insize = 1;
REQUIRE_OUTBUF(2);
if (c < 0x10000) {
if (TRYMAP_ENC(big5hkscs_bmp, code, c)) {
if (code == MULTIC) {
Py_UCS4 c2;
if (inlen - *inpos >= 2)
c2 = INCHAR2;
else
c2 = 0;
if (inlen - *inpos >= 2 &&
((c & 0xffdf) == 0x00ca) &&
((c2 & 0xfff7) == 0x0304)) {
code = big5hkscs_pairenc_table[
((c >> 4) |
(c2 >> 3)) & 3];
insize = 2;
}
else if (inlen - *inpos < 2 &&
!(flags & MBENC_FLUSH))
return MBERR_TOOFEW;
else {
if (c == 0xca)
code = 0x8866;
else /* c == 0xea */
code = 0x88a7;
}
}
}
else if (TRYMAP_ENC(big5, code, c))
;
else
return 1;
}
else if (c < 0x20000)
return insize;
else if (c < 0x30000) {
if (TRYMAP_ENC(big5hkscs_nonbmp, code, c & 0xffff))
;
else
return insize;
}
else
return insize;
OUTBYTE1(code >> 8);
OUTBYTE2(code & 0xFF);
NEXT(insize, 2);
}
return 0;
}
#define BH2S(c1, c2) (((c1) - 0x87) * (0xfe - 0x40 + 1) + ((c2) - 0x40))
DECODER(big5hkscs)
{
while (inleft > 0) {
unsigned char c = INBYTE1;
Py_UCS4 decoded;
if (c < 0x80) {
OUTCHAR(c);
NEXT_IN(1);
continue;
}
REQUIRE_INBUF(2);
if (0xc6 > c || c > 0xc8 || (c < 0xc7 && INBYTE2 < 0xa1)) {
if (TRYMAP_DEC(big5, decoded, c, INBYTE2)) {
OUTCHAR(decoded);
NEXT_IN(2);
continue;
}
}
if (TRYMAP_DEC(big5hkscs, decoded, c, INBYTE2))
{
int s = BH2S(c, INBYTE2);
const unsigned char *hintbase;
assert(0x87 <= c && c <= 0xfe);
assert(0x40 <= INBYTE2 && INBYTE2 <= 0xfe);
if (BH2S(0x87, 0x40) <= s && s <= BH2S(0xa0, 0xfe)) {
hintbase = big5hkscs_phint_0;
s -= BH2S(0x87, 0x40);
}
else if (BH2S(0xc6,0xa1) <= s && s <= BH2S(0xc8,0xfe)){
hintbase = big5hkscs_phint_12130;
s -= BH2S(0xc6, 0xa1);
}
else if (BH2S(0xf9,0xd6) <= s && s <= BH2S(0xfe,0xfe)){
hintbase = big5hkscs_phint_21924;
s -= BH2S(0xf9, 0xd6);
}
else
return MBERR_INTERNAL;
if (hintbase[s >> 3] & (1 << (s & 7))) {
OUTCHAR(decoded | 0x20000);
NEXT_IN(2);
}
else {
OUTCHAR(decoded);
NEXT_IN(2);
}
continue;
}
switch ((c << 8) | INBYTE2) {
case 0x8862: OUTCHAR2(0x00ca, 0x0304); break;
case 0x8864: OUTCHAR2(0x00ca, 0x030c); break;
case 0x88a3: OUTCHAR2(0x00ea, 0x0304); break;
case 0x88a5: OUTCHAR2(0x00ea, 0x030c); break;
default: return 1;
}
NEXT_IN(2); /* all decoded code points are pairs, above. */
}
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)
_Section(".rodata.pytab.1") const struct _inittab _PyImport_Inittab__codecs_hk = {
"_codecs_hk",
PyInit__codecs_hk,
};
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