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authorUlrich Drepper <drepper@redhat.com>1999-12-28 01:47:44 +0000
committerUlrich Drepper <drepper@redhat.com>1999-12-28 01:47:44 +0000
commitf3d703cd527d3566808da08ce30b22ec288a78a9 (patch)
tree60da90eed4139b2e5a38ddaa56c113fb7fb00bff /iconvdata
parenta1b038d329d56b9e205b7b940e7b921f06f0aaef (diff)
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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
Diffstat (limited to 'iconvdata')
-rw-r--r--iconvdata/Makefile4
-rw-r--r--iconvdata/gbgbk.c135
-rw-r--r--iconvdata/gconv-modules4
3 files changed, 141 insertions, 2 deletions
diff --git a/iconvdata/Makefile b/iconvdata/Makefile
index 066edbf..8380f10 100644
--- a/iconvdata/Makefile
+++ b/iconvdata/Makefile
@@ -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))
diff --git a/iconvdata/gbgbk.c b/iconvdata/gbgbk.c
new file mode 100644
index 0000000..95aaba2
--- /dev/null
+++ b/iconvdata/gbgbk.c
@@ -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>
diff --git a/iconvdata/gconv-modules b/iconvdata/gconv-modules
index e64e88e..b57a488 100644
--- a/iconvdata/gconv-modules
+++ b/iconvdata/gconv-modules
@@ -892,6 +892,10 @@ 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//
module EUC-TW// INTERNAL EUC-TW 1