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Update. 

* iconvdata/Makefile (modules): Add ISO-2022-CN-EXT.
	(distribute): Add iso-2022-cn-ext.c.
	Add definitions to compile the new module.
	* iconvdata/gconv-modules: Add entries for ISO-2022-CN-EXT.
	* iconvdata/iso-2022-cn-ext.c: New file.
	* iconvdata/iso-ir-165.h (isoir165_to_ucs4): Renamed from
	ucs4_from_isoir165.  Increment input pointer if successful.
This commit is contained in:
Ulrich Drepper 2000-09-13 09:12:02 +00:00
parent 875fc78301
commit c0d99958f9
5 changed files with 597 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
ChangeLog
View File

@ -1,5 +1,13 @@
2000-09-13 Ulrich Drepper <drepper@redhat.com>
* iconvdata/Makefile (modules): Add ISO-2022-CN-EXT.
(distribute): Add iso-2022-cn-ext.c.
Add definitions to compile the new module.
* iconvdata/gconv-modules: Add entries for ISO-2022-CN-EXT.
* iconvdata/iso-2022-cn-ext.c: New file.
* iconvdata/iso-ir-165.h (isoir165_to_ucs4): Renamed from
ucs4_from_isoir165. Increment input pointer if successful.
* csu/Makefile: Work around a gcc bug when creating csu-dummies.
* sysdeps/unix/sysv/linux/getdents.c: Pretty print.

7
iconvdata/Makefile
View File

@ -46,7 +46,7 @@ modules := ISO8859-1 ISO8859-2 ISO8859-3 ISO8859-4 ISO8859-5 \
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 GBGBK \
ISO-2022-CN libISOIR165 UTF-16 UNICODE UTF-7 BIG5HKSCS \
GB18030
GB18030 ISO-2022-CN-EXT
modules.so := $(addsuffix .so, $(modules))
@ -82,6 +82,9 @@ LDFLAGS-ISO-2022-KR.so = -Wl,-rpath,'$$ORIGIN'
$(objpfx)ISO-2022-KR.so: $(objpfx)libKSC.so
LDFLAGS-ISO-2022-CN.so = -Wl,-rpath,'$$ORIGIN'
$(objpfx)ISO-2022-CN.so: $(objpfx)libGB.so $(objpfx)libCNS.so
LDFLAGS-ISO-2022-CN-EXT.so = -Wl,-rpath,'$$ORIGIN'
$(objpfx)ISO-2022-CN-EXT.so: $(objpfx)libGB.so $(objpfx)libCNS.so \
$(objpfx)libISOIR165.so
LDFLAGS-libJIS.so = -Wl,-soname,$(@F)
LDFLAGS-libKSC.so = -Wl,-soname,$(@F)
@ -127,7 +130,7 @@ distribute := gconv-modules extra-module.mk gap.awk gaptab.awk \
t.61.c uhc.c sami-ws2.c iso-ir-197.c tis-620.c koi8-u.c \
isiri-3342.c isiri-3342.h gbgbk.c iso-2022-cn.c cns11643l2.h \
iso8859-16.c utf-16.c unicode.c utf-7.c big5hkscs.c \
iso-ir-165.c iso-ir-165.h gb18030.c
iso-ir-165.c iso-ir-165.h gb18030.c iso-2022-cn-ext.c
# We build the transformation modules only when we build shared libs.
ifeq (yes,$(build-shared))

4
iconvdata/gconv-modules
View File

@ -997,6 +997,10 @@ alias CSISO2022CN// ISO-2022-CN//
module ISO-2022-CN// INTERNAL ISO-2022-CN 1
module INTERNAL ISO-2022-CN// ISO-2022-CN 1
# from to module cost
module ISO-2022-CN-EXT// INTERNAL ISO-2022-CN-EXT 1
module INTERNAL ISO-2022-CN-EXT// ISO-2022-CN-EXT 1
# from to module cost
alias MAC// MACINTOSH//
alias CSMACINTOSH// MACINTOSH//

572
iconvdata/iso-2022-cn-ext.c Normal file
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@ -0,0 +1,572 @@
/* Conversion module for ISO-2022-CN-EXT.
Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000.
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 <dlfcn.h>
#include <gconv.h>
#include <stdint.h>
#include <string.h>
#include "gb2312.h"
#include "iso-ir-165.h"
#include "cns11643l1.h"
#include "cns11643l2.h"
#include <assert.h>
/* This makes obvious what everybody knows: 0x1b is the Esc character. */
#define ESC 0x1b
/* We have single-byte shift-in and shift-out sequences, and the single
shift sequences SS2 and SS3 which replaces the SS2/SS3 designation for
the next two bytes. */
#define SI 0x0f
#define SO 0x0e
#define SS2_0 ESC
#define SS2_1 0x4e
#define SS3_0 ESC
#define SS3_1 0x4f
/* Definitions used in the body of the `gconv' function. */
#define CHARSET_NAME "ISO-2022-CN-EXT//"
#define DEFINE_INIT 1
#define DEFINE_FINI 1
#define FROM_LOOP from_iso2022cn_ext_loop
#define TO_LOOP to_iso2022cn_ext_loop
#define MIN_NEEDED_FROM 1
#define MAX_NEEDED_FROM 4
#define MIN_NEEDED_TO 4
#define MAX_NEEDED_TO 4
#define PREPARE_LOOP \
int save_set; \
int *setp = &data->__statep->__count;
#define EXTRA_LOOP_ARGS , setp
/* The charsets GB/T 12345-90, GB 7589-87, GB/T 13131-9X, GB 7590-87,
and GB/T 13132-9X are not registered to the best of my knowledge and
therefore have no escape sequence assigned. We cannot handle them
for this reason. Tell the implementation about this. */
#define X12345 '\0'
#define X7589 '\0'
#define X13131 '\0'
#define X7590 '\0'
#define X13132 '\0'
/* The COUNT element of the state keeps track of the currently selected
character set. The possible values are: */
enum
{
ASCII_set = 0,
GB2312_set,
GB12345_set,
CNS11643_1_set,
ISO_IR_165_set,
SO_mask = 7,
GB7589_set = 8,
GB13131_set = 16,
CNS11643_2_set = 24,
SS2_mask = 24,
GB7590_set = 0,
GB13132_set = 32,
CNS11643_3_set = 64,
CNS11643_4_set = 96,
CNS11643_5_set = 128,
CNS11643_6_set = 160,
CNS11643_7_set = 192,
SS3_mask = 224,
#define CURRENT_MASK (SO_mask | SS2_mask | SS3_mask)
GB2312_ann = 256,
GB12345_ann = 512,
CNS11643_1_ann = 768,
ISO_IR_165_ann = 1024,
SO_ann = 1792,
GB7589_ann = 2048,
GB13131_ann = 4096,
CNS11643_2_ann = 6144,
SS2_ann = 6144,
GB7590_ann = 8192,
GB13132_ann = 16384,
CNS11643_3_ann = 24576,
CNS11643_4_ann = 32768,
CNS11643_5_ann = 40960,
CNS11643_6_ann = 49152,
CNS11643_7_ann = 57344,
SS3_ann = 57344
};
/* Since this is a stateful encoding we have to provide code which resets
the output state to the initial state. This has to be done during the
flushing. */
#define EMIT_SHIFT_TO_INIT \
if (data->__statep->__count >> 2 != ASCII_set) \
{ \
if (FROM_DIRECTION) \
/* It's easy, we don't have to emit anything, we just reset the \
state for the input. */ \
data->__statep->__count = ASCII_set << 2; \
else \
{ \
unsigned char *outbuf = data->__outbuf; \
\
/* We are not in the initial state. To switch back we have \
to emit `SI'. */ \
if (outbuf == data->__outbufend) \
/* We don't have enough room in the output buffer. */ \
status = __GCONV_FULL_OUTPUT; \
else \
{ \
/* Write out the shift sequence. */ \
*outbuf++ = SI; \
if (data->__flags & __GCONV_IS_LAST) \
*irreversible += 1; \
data->__outbuf = outbuf; \
data->__statep->__count = ASCII_set << 2; \
} \
} \
}
/* Since we might have to reset input pointer we must be able to save
and retore the state. */
#define SAVE_RESET_STATE(Save) \
if (Save) \
save_set = *setp; \
else \
*setp = save_set
/* First define the conversion function from ISO-2022-CN 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; \
\
/* This is a 7bit character set, disallow all 8bit characters. */ \
if (ch > 0x7f) \
{ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
++inptr; \
++*irreversible; \
continue; \
} \
\
/* Recognize escape sequences. */ \
if (ch == ESC) \
{ \
/* There are three kinds of escape sequences we have to handle: \
- those announcing the use of GB and CNS characters on the \
line; we can simply ignore them \
- the initial byte of the SS2 sequence. \
- the initial byte of the SS3 sequence. \
*/ \
if (inptr + 1 > inend \
|| (inptr[1] == '$' \
&& (inptr + 2 > inend \
|| (inptr[2] == ')' && inptr + 3 > inend) \
|| (inptr[2] == '*' && inptr + 3 > inend) \
|| (inptr[2] == '+' && inptr + 3 > inend))) \
|| (inptr[1] == SS2_1 && inptr + 3 > inend) \
|| (inptr[1] == SS3_1 && inptr + 3 > inend)) \
{ \
result = __GCONV_EMPTY_INPUT; \
break; \
} \
if (inptr[1] == '$' \
&& ((inptr[2] == ')' \
&& (inptr[3] == 'A' \
|| (X12345 != '\0' && inptr[3] == X12345) \
|| inptr[3] == 'E' || inptr[3] == 'G')) \
|| (inptr[2] == '*' \
&& ((X7589 != '\0' && inptr[3] == X7589) \
|| (X13131 != '\0' && inptr[3] == X13131) \
|| inptr[3] == 'H')) \
|| (inptr[2] == '+' \
&& ((X7590 != '\0' && inptr[3] == X7590) \
|| (X13132 != '\0' && inptr[3] == X13132) \
|| inptr[3] == 'I' || inptr[3] == 'J' \
|| inptr[3] == 'K' || inptr[3] == 'L' \
|| inptr[3] == 'M')))) \
{ \
/* OK, we accept those character sets. */ \
if (inptr[3] == 'A') \
ann = (ann & ~SO_ann) | GB2312_ann; \
else if (inptr[3] == 'G') \
ann = (ann & ~SO_ann) | CNS11643_1_ann; \
else if (inptr[3] == 'E') \
ann = (ann & ~SO_ann) | ISO_IR_165_ann; \
else if (X12345 != '\0' && inptr[3] == X12345) \
ann = (ann & ~SO_ann) | GB12345_ann; \
else if (inptr[3] == 'H') \
ann = (ann & ~SS2_ann) | CNS11643_2_ann; \
else if (X7589 != '\0' && inptr[3] == X7589) \
ann = (ann & ~SS2_ann) | GB7589_ann; \
else if (X13131 != '\0' && inptr[3] == X13131) \
ann = (ann & ~SS2_ann) | GB13131_ann; \
else if (inptr[3] == 'I') \
ann = (ann & ~SS3_ann) | CNS11643_3_ann; \
else if (inptr[3] == 'J') \
ann = (ann & ~SS3_ann) | CNS11643_4_ann; \
else if (inptr[3] == 'K') \
ann = (ann & ~SS3_ann) | CNS11643_5_ann; \
else if (inptr[3] == 'L') \
ann = (ann & ~SS3_ann) | CNS11643_6_ann; \
else if (inptr[3] == 'M') \
ann = (ann & ~SS3_ann) | CNS11643_7_ann; \
else if (X7590 != '\0' && inptr[3] == X7590) \
ann = (ann & ~SS3_ann) | GB7590_ann; \
else if (X13132 != '\0' && inptr[3] == X13132) \
ann = (ann & ~SS3_ann) | GB13132_ann; \
inptr += 4; \
continue; \
} \
} \
else if (ch == SO) \
{ \
/* Switch to use GB2312, GB12345, CNS 11643 plane 1, or ISO-IR-165, \
depending on which S0 designation came last. The only problem \
is what to do with faulty input files where no designator came. \
XXX For now I'll default to use GB2312. If this is not the \
best behavior (e.g., we should flag an error) let me know. */ \
++inptr; \
switch (ann & SO_ann) \
{ \
case GB2312_ann: \
set = GB2312_set; \
break; \
case GB12345_ann: \
set = GB12345_set; \
break; \
case CNS11643_1_ann: \
set = CNS11643_1_set; \
break; \
default: \
assert ((ann & SO_ann) == ISO_IR_165_ann); \
set = ISO_IR_165_set; \
break; \
} \
continue; \
} \
else if (ch == SI) \
{ \
/* Switch to use ASCII. */ \
++inptr; \
set = ASCII_set; \
continue; \
} \
\
if (ch == ESC && (inend - inptr == 1 || inptr[1] == SS2_1)) \
{ \
/* This is a character from CNS 11643 plane 2. \
XXX We could test here whether the use of this character \
set was announced. \
XXX Current GB7589 and GB13131 are not supported. */ \
if (inend - inptr < 4) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
inptr += 2; \
ch = cns11643l2_to_ucs4 (&inptr, 2, 0); \
if (ch == __UNKNOWN_10646_CHAR) \
{ \
if (! ignore_errors_p ()) \
{ \
inptr -= 2; \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
++*irreversible; \
continue; \
} \
} \
/* Note that we can assume here that at least bytes are available if \
the first byte is ESC since otherwise the first if would have been \
true. */ \
else if (ch == ESC && inptr[1] == SS3_1) \
{ \
/* This is a character from CNS 11643 plane 3 or higher. \
XXX Current GB7590 and GB13132 are not supported. */ \
if (inend - inptr < 4) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
inptr += 2; \
ch = cns11643l2_to_ucs4 (&inptr, 2, 0); \
if (ch == __UNKNOWN_10646_CHAR) \
{ \
if (! ignore_errors_p ()) \
{ \
inptr -= 2; \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
++*irreversible; \
continue; \
} \
} \
else if (set == ASCII_set) \
{ \
/* Almost done, just advance the input pointer. */ \
++inptr; \
} \
else \
{ \
/* That's pretty easy, we have a dedicated functions for this. */ \
if (inend - inptr < 2) \
{ \
result = __GCONV_INCOMPLETE_INPUT; \
break; \
} \
if (set == GB2312_set) \
ch = gb2312_to_ucs4 (&inptr, inend - inptr, 0); \
else if (set == ISO_IR_165_set) \
ch = isoir165_to_ucs4 (&inptr, inend - inptr); \
else \
{ \
assert (set == CNS11643_1_set); \
ch = cns11643l1_to_ucs4 (&inptr, inend - inptr, 0); \
} \
\
if (ch == 0) \
{ \
result = __GCONV_EMPTY_INPUT; \
break; \
} \
else if (ch == __UNKNOWN_10646_CHAR) \
{ \
if (! ignore_errors_p ()) \
{ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
inptr += 2; \
++*irreversible; \
continue; \
} \
} \
\
*((uint32_t *) outptr)++ = ch; \
}
#define EXTRA_LOOP_DECLS , int *setp
#define INIT_PARAMS int set = (*setp >> 2) & CURRENT_MASK; \
int ann = (*setp >> 2) & ~CURRENT_MASK
#define UPDATE_PARAMS *setp = (set | ann) << 2
#define LOOP_NEED_FLAGS
#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 \
{ \
uint32_t ch; \
size_t written = 0; \
\
ch = *((uint32_t *) inptr); \
\
/* First see whether we can write the character using the currently \
selected character set. */ \
if (ch < 0x80) \
{ \
if (set != ASCII_set) \
{ \
*outptr++ = SI; \
set = ASCII_set; \
if (outptr == outend) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
} \
\
*outptr++ = ch; \
written = 1; \
\
/* At the end of the line we have to clear the `ann' flags since \
every line must contain this information again. */ \
if (ch == L'\n') \
ann = 0; \
} \
else \
{ \
char buf[2]; \
int used; \
\
if (set == GB2312_set || ((ann & CNS11643_1_ann) == 0 \
&& (ann & ISO_IR_165_ann) == 0)) \
{ \
written = ucs4_to_gb2312 (ch, buf, 2); \
used = GB2312_set; \
} \
else if (set == ISO_IR_165_set || (ann & ISO_IR_165_set) != 0) \
{ \
written = ucs4_to_gb2312 (ch, buf, 2); \
used = GB2312_set; \
} \
else \
{ \
written = ucs4_to_cns11643l1 (ch, buf, 2); \
used = CNS11643_1_set; \
} \
\
if (written == __UNKNOWN_10646_CHAR) \
{ \
/* Cannot convert it using the currently selected SO set. \
Next try the SS2 set. */ \
written = ucs4_to_cns11643l2 (ch, buf, 2); \
if (written != __UNKNOWN_10646_CHAR) \
/* Yep, that worked. */ \
used = CNS11643_2_set; \
else \
{ \
/* Well, see whether we have to change the SO set. */ \
if (set != GB2312_set) \
{ \
written = ucs4_to_gb2312 (ch, buf, 2); \
if (written != __UNKNOWN_10646_CHAR) \
used = GB2312_set; \
} \
if (written == __UNKNOWN_10646_CHAR && set != ISO_IR_165_set) \
{ \
written = ucs4_to_isoir165 (ch, buf, 2); \
if (written != __UNKNOWN_10646_CHAR) \
used = ISO_IR_165_set; \
} \
if (written == __UNKNOWN_10646_CHAR && set != CNS11643_1_set) \
{ \
written = ucs4_to_cns11643l1 (ch, buf, 2); \
if (written != __UNKNOWN_10646_CHAR) \
used = CNS11643_1_set; \
} \
\
if (written == __UNKNOWN_10646_CHAR) \
{ \
/* Even this does not work. Error. */ \
STANDARD_ERR_HANDLER (4); \
} \
} \
} \
assert (written == 2); \
\
/* See whether we have to emit an escape sequence. */ \
if (set != used) \
{ \
/* First see whether we announced that we use this \
character set. */ \
if ((ann & (2 << used)) == 0) \
{ \
const char *escseq; \
\
if (outptr + 4 > outend) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
assert (used >= 1 && used <= 4); \
escseq = "\e$)A\e$)G\e$*H\e$)E" + (used - 1) * 4; \
*outptr++ = *escseq++; \
*outptr++ = *escseq++; \
*outptr++ = *escseq++; \
*outptr++ = *escseq++; \
\
if (used == GB2312_set) \
ann = (ann & CNS11643_2_ann) | GB2312_ann; \
else if (used == CNS11643_1_set) \
ann = (ann & CNS11643_2_ann) | CNS11643_1_ann; \
else \
ann |= CNS11643_2_ann; \
} \
\
if (used == CNS11643_2_set) \
{ \
if (outptr + 2 > outend) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = SS2_0; \
*outptr++ = SS2_1; \
} \
else \
{ \
/* We only have to emit something if currently ASCII is \
selected. Otherwise we are switching within the \
SO charset. */ \
if (set == ASCII_set) \
{ \
if (outptr + 1 > outend) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
*outptr++ = SO; \
} \
} \
\
/* Always test the length here since we have used up all the \
guaranteed output buffer slots. */ \
if (outptr + 2 > outend) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
} \
else if (outptr + 2 > outend) \
{ \
result = __GCONV_FULL_OUTPUT; \
break; \
} \
\
*outptr++ = buf[0]; \
*outptr++ = buf[1]; \
} \
\
/* Now that we wrote the output increment the input pointer. */ \
inptr += 4; \
}
#define EXTRA_LOOP_DECLS , int *setp
#define INIT_PARAMS int set = (*setp >> 2) & CURRENT_MASK; \
int ann = (*setp >> 2) & ~CURRENT_MASK
#define UPDATE_PARAMS *setp = (set | ann) << 2
#define LOOP_NEED_FLAGS
#include <iconv/loop.c>
/* Now define the toplevel functions. */
#include <iconv/skeleton.c>

11
iconvdata/iso-ir-165.h
View File

@ -40,10 +40,11 @@ extern const uint16_t __isoir165_to_tab[ISOIR165_FROMSIZE];
/* XXX If we at some point need an offset value to decode the byte
sequences another parameter can be added. */
static inline uint32_t
ucs4_from_isoir165 (const char **s, size_t avail)
isoir165_to_ucs4 (const unsigned char **s, size_t avail)
{
unsigned char ch = *(*s);
unsigned char ch2;
uint32_t res;
if (ch <= 0x20 || ch >= 0x7f)
return __UNKNOWN_10646_CHAR;
@ -55,8 +56,12 @@ ucs4_from_isoir165 (const char **s, size_t avail)
if (ch2 <= 0x20 || ch2 >= 0x7f)
return __UNKNOWN_10646_CHAR;
return (__isoir165_to_tab[(ch - 0x21) * 94 + (ch2 - 0x21)]
?: __UNKNOWN_10646_CHAR);
res = __isoir165_to_tab[(ch - 0x21) * 94 + (ch2 - 0x21)];
if (res == 0)
return __UNKNOWN_10646_CHAR;
*s += 2;
return res;
}