mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
Update.
* iconvdata/gbgbk.c: New file. * iconvdata/Makefile (modules): Add GBGBK. (distribute): Add gbgbk.c. * iconvdata/gconv-modules: Add entries for GBGBK modules. * iconvdata/euc-cn.c: Fix comment. * iconvdata/gbk.c: Optimize the switch statement in the conversion
This commit is contained in:
Ulrich Drepper
parent
a1b038d329
commit
f3d703cd52
@ -1,6 +1,13 @@
|
||||
1999-12-27 Ulrich Drepper <drepper@cygnus.com>
|
||||
|
||||
* iconvdata/gbk.c: OPtimize the swrich statement in the conversion
|
||||
* iconvdata/gbgbk.c: New file.
|
||||
* iconvdata/Makefile (modules): Add GBGBK.
|
||||
(distribute): Add gbgbk.c.
|
||||
* iconvdata/gconv-modules: Add entries for GBGBK modules.
|
||||
|
||||
* iconvdata/euc-cn.c: Fix comment.
|
||||
|
||||
* iconvdata/gbk.c: Optimize the switch statement in the conversion
|
||||
to GBK a bit.
|
||||
|
||||
* locale/programs/charmap.c (charmap_new_char): Recognize special
|
||||
|
||||
@ -44,7 +44,7 @@ modules := ISO8859-1 ISO8859-2 ISO8859-3 ISO8859-4 ISO8859-5 \
|
||||
GOST_19768-74 GREEK-CCITT GREEK7 GREEK7-OLD INIS INIS-8 \
|
||||
INIS-CYRILLIC ISO_6937-2 ISO_2033 ISO_5427 ISO_5427-EXT \
|
||||
ISO_5428 ISO_10367-BOX MAC-IS MAC-UK NATS-DANO NATS-SEFI \
|
||||
SAMI-WS2 ISO-IR-197 TIS-620 KOI8-U GBK ISIRI-3342
|
||||
SAMI-WS2 ISO-IR-197 TIS-620 KOI8-U GBK ISIRI-3342 GBGBK
|
||||
|
||||
modules.so := $(addsuffix .so, $(modules))
|
||||
|
||||
@ -112,7 +112,7 @@ distribute := gconv-modules extra-module.mk gap.awk gaptab.awk \
|
||||
koi8-r.c ksc5601.c ksc5601.h latin-greek.c latin-greek-1.c \
|
||||
macintosh.c mac-is.c mac-uk.c nats-dano.c nats-sefi.c sjis.c \
|
||||
t.61.c uhc.c sami-ws2.c iso-ir-197.c tis-620.c koi8-u.c \
|
||||
isiri-3342.c
|
||||
isiri-3342.c gbgbk.c
|
||||
|
||||
# We build the transformation modules only when we build shared libs.
|
||||
ifeq (yes,$(build-shared))
|
||||
|
||||
135
iconvdata/gbgbk.c
Normal file
135
iconvdata/gbgbk.c
Normal file
@ -0,0 +1,135 @@
|
||||
/* Mapping tables from GBK to GB2312 and vice versa.
|
||||
Copyright (C) 1999 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include <gconv.h>
|
||||
#include <stdint.h>
|
||||
|
||||
|
||||
/* Definitions used in the body of the `gconv' function. */
|
||||
#define CHARSET_NAME "GBK//"
|
||||
#define FROM_LOOP from_gbk_to_gb
|
||||
#define TO_LOOP from_gb_to_gbk
|
||||
#define DEFINE_INIT 1
|
||||
#define DEFINE_FINI 1
|
||||
#define MIN_NEEDED_FROM 1
|
||||
#define MAX_NEEDED_FROM 2
|
||||
#define MIN_NEEDED_TO 1
|
||||
#define MAX_NEEDED_TO 2
|
||||
|
||||
|
||||
/* First define the conversion function from ISO 8859-1 to UCS4. */
|
||||
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
|
||||
#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
|
||||
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
|
||||
#define LOOPFCT FROM_LOOP
|
||||
#define BODY \
|
||||
{ \
|
||||
uint32_t ch = *inptr; \
|
||||
\
|
||||
if (ch <= 0x7f) \
|
||||
*outptr++ = *inptr++; \
|
||||
else \
|
||||
{ \
|
||||
/* It's a two-byte sequence. We have to mask out all the sequences \
|
||||
which are not in GB2312. Besides all of them in the range \
|
||||
0x8140 to 0xA0FE this also includes in the remaining range the \
|
||||
sequences which the second byte being in the range from 0x40 to \
|
||||
0xA0 and the following exceptions: \
|
||||
\
|
||||
0xA2A1 to 0xA2A9, \
|
||||
0xA2AA, \
|
||||
0xA6E0 to 0xA6EB, \
|
||||
0xA6EE to 0xA6F2, \
|
||||
0xA6F4, 0xA6F5, \
|
||||
0xA8BB to 0xA8C0 \
|
||||
\
|
||||
All these characters are not defined in GB2312. Besides this \
|
||||
there is an incomatibility in the mapping. The Unicode tables \
|
||||
say that 0xA1A4 maps in GB2312 to U30FB while in GBK it maps to \
|
||||
U00B7. Since we are free to do whatever we want if a mapping \
|
||||
is not available we will not flag this as an error but instead \
|
||||
map the two positions. But this means that the mapping \
|
||||
\
|
||||
UCS4 -> GB2312 -> GBK ->UCS4 \
|
||||
\
|
||||
might not produce identical text. */ \
|
||||
if (NEED_LENGTH_TEST && inptr + 1 >= inend) \
|
||||
{ \
|
||||
/* The second character is not available. Store \
|
||||
the intermediate result. */ \
|
||||
result = __GCONV_INCOMPLETE_INPUT; \
|
||||
break; \
|
||||
} \
|
||||
\
|
||||
ch = (ch << 8) | inptr[1]; \
|
||||
\
|
||||
/* Now determine whether the character is valid. */ \
|
||||
if (ch >= 0xa1a1 && ch <= 0x777e \
|
||||
&& inptr[1] >= 0xa1 && inptr[1] != 0xff) \
|
||||
{ \
|
||||
/* So far so good. Now test the exceptions. */ \
|
||||
if ((ch >= 0xa2a1 && ch <= 0xa2aa) \
|
||||
|| (ch >= 0xa6e0 && ch <= 0xa6f5) \
|
||||
|| (ch >= 0xa8bb && ch <= 0xa8c0)) \
|
||||
{ \
|
||||
/* One of the exceptions. */ \
|
||||
result = __GCONV_ILLEGAL_INPUT; \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
else \
|
||||
{ \
|
||||
/* One of the characters we cannot map. */ \
|
||||
result = __GCONV_ILLEGAL_INPUT; \
|
||||
break; \
|
||||
} \
|
||||
\
|
||||
/* Copy the two bytes. */ \
|
||||
*outptr++ = *inptr++; \
|
||||
*outptr++ = *inptr++; \
|
||||
} \
|
||||
}
|
||||
#include <iconv/loop.c>
|
||||
|
||||
|
||||
/* Next, define the other direction. */
|
||||
#define MIN_NEEDED_INPUT MIN_NEEDED_TO
|
||||
#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
|
||||
#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
|
||||
#define LOOPFCT TO_LOOP
|
||||
#define BODY \
|
||||
{ \
|
||||
/* We don't have to care about characters we cannot map. The only \
|
||||
problem is the mapping of 0xA1A4 but as explained above we do not \
|
||||
do anything special here. */ \
|
||||
unsigned char ch = *inptr++; \
|
||||
\
|
||||
if (ch > 0x7f) \
|
||||
{ \
|
||||
*outptr++ = ch; \
|
||||
ch = *inptr++; \
|
||||
} \
|
||||
*outptr++ = ch; \
|
||||
}
|
||||
#include <iconv/loop.c>
|
||||
|
||||
|
||||
/* Now define the toplevel functions. */
|
||||
#include <iconv/skeleton.c>
|
||||
@ -891,6 +891,10 @@ alias GB13000// GBK//
|
||||
module GBK// INTERNAL GBK 1
|
||||
module INTERNAL GBK// GBK 1
|
||||
|
||||
# from to module cost
|
||||
module GBK// EUC-CN// GBGBK 1
|
||||
module EUC-CN// GBK// GBGBK 1
|
||||
|
||||
# from to module cost
|
||||
alias EUCTW// EUC-TW//
|
||||
alias OSF0005000a// EUC-TW//
|
||||
|
||||
Loading…
Reference in New Issue
Block a user