mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 15:30:07 +00:00
f9ad060c7a
2002-11-30 Bruno Haible <bruno@clisp.org> * iconv/gconv.h (__gconv_btowc_fct): New typedef. (struct __gconv_step): New field __btowc_fct. * wcsmbs/btowc.c (__btowc): Use the __btowc_fct shortcut if possible. * iconv/gconv_int.h (__BUILTIN_TRANSFORM): Renamed from __BUILTIN_TRANS. (__gconv_btwoc_ascii): New declaration. * iconv/gconv_simple.c (BUILTIN_TRANSFORMATION): Add BtowcFct argument. (__gconv_btwoc_ascii): New function. * iconv/gconv_builtin.h: Add BtowcFct argument to all BUILTIN_TRANSFORMATION invocations. * iconv/gconv_conf.c (BUILTIN_TRANSFORMATION): Add BtowcFct argument. * iconv/iconvconfig.c (BUILTIN_TRANSFORMATION): Likewise. * iconv/gconv_builtin.c (map): New field btowc_fct. (BUILTIN_TRANSFORMATION): Add BtowcFct argument. Use it to initialize btowc_fct field. (__gconv_get_builtin_trans): Initialize __btowc_fct field. * iconv/gconv_cache.c (find_module): Initialize __btowc_fct field. * iconv/gconv_db.c (gen_steps, increment_counter): Likewise. * wcsmbs/wcsmbsload.c (to_wc, to_mb): Likewise. * iconv/skeleton.c: Document STORE_REST and FROM_ONEBYTE. (gconv_init): Initialize __btowc_fct field. Undefine EXTRA_LOOP_ARGS and FROM_ONEBYTE at the end. * iconv/loop.c: Document ONEBYTE_BODY. (gconv_btowc, FROM_ONEBYTE): Define if ONEBYTE_BODY is defined. Undefine ONEBYTE_BODY at the end. * iconvdata/8bit-generic.c (ONEBYTE_BODY): New macro. * iconvdata/8bit-gap.c (NONNUL): New macro. (BODY for FROM_LOOP): Use it. (ONEBYTE_BODY): New macro. * iconvdata/isiri-3342.c (HAS_HOLES): Set to 1. (NONNUL): New macro. * iconvdata/ansi_x3.110.c (ONEBYTE_BODY): New macro. * iconvdata/armscii-8.c (ONEBYTE_BODY): New macro. * iconvdata/cp1255.c (ONEBYTE_BODY): New macro. * iconvdata/cp1258.c (ONEBYTE_BODY): New macro. * iconvdata/tcvn5712-1.c (ONEBYTE_BODY): New macro. * iconvdata/big5.c (ONEBYTE_BODY): New macro. * iconvdata/big5hkscs.c (ONEBYTE_BODY): New macro. * iconvdata/euc-cn.c (ONEBYTE_BODY): New macro. * iconvdata/euc-jp.c (ONEBYTE_BODY): New macro. * iconvdata/euc-jisx0213.c (ONEBYTE_BODY): New macro. * iconvdata/euc-kr.c (ONEBYTE_BODY): New macro. * iconvdata/euc-tw.c (ONEBYTE_BODY): New macro. * iconvdata/gbk.c (ONEBYTE_BODY): New macro. * iconvdata/gb18030.c (ONEBYTE_BODY): New macro. * iconvdata/ibm932.c: Include <stdbool.h>. (TRUE, FALSE): Remove macros. (BODY for FROM_LOOP): Remove unused variable rp1. (ONEBYTE_BODY): New macro. (BODY for TO_LOOP): Use bool. * iconvdata/ibm932.h (__ibm932sb_to_ucs4_idx): Remove array. * iconvdata/ibm943.c: Include <stdbool.h>. (TRUE, FALSE): Remove macros. (BODY for FROM_LOOP): Remove unused variable rp1. (ONEBYTE_BODY): New macro. (BODY for TO_LOOP): Use bool. * iconvdata/ibm943.h (__ibm943sb_to_ucs4_idx): Remove array. * iconvdata/iso8859-1.c (ONEBYTE_BODY): New macro. * iconvdata/iso_6937-2.c (ONEBYTE_BODY): New macro. * iconvdata/iso_6937.c (ONEBYTE_BODY): New macro. * iconvdata/johab.c (ONEBYTE_BODY): New macro. * iconvdata/sjis.c (ONEBYTE_BODY): New macro. * iconvdata/shift_jisx0213.c (ONEBYTE_BODY): New macro. * iconvdata/t.61.c (ONEBYTE_BODY): New macro. * iconvdata/uhc.c (ONEBYTE_BODY): New macro. * iconvdata/gbbig5.c: Tweak comment.
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; 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 <stdio.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <wcsmbsload.h>
|
|
#include <limits.h>
|
|
|
|
|
|
wint_t
|
|
__btowc (c)
|
|
int c;
|
|
{
|
|
const struct gconv_fcts *fcts;
|
|
|
|
/* If the parameter does not fit into one byte or it is the EOF value
|
|
we can give the answer now. */
|
|
if (c < SCHAR_MIN || c > UCHAR_MAX || c == EOF)
|
|
return WEOF;
|
|
|
|
/* Get the conversion functions. */
|
|
fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
|
|
|
|
if (__builtin_expect (fcts->towc_nsteps == 1, 1)
|
|
&& __builtin_expect (fcts->towc->__btowc_fct != NULL, 1))
|
|
{
|
|
/* Use the shortcut function. */
|
|
return DL_CALL_FCT (fcts->towc->__btowc_fct,
|
|
(fcts->towc, (unsigned char) c));
|
|
}
|
|
else
|
|
{
|
|
/* Fall back to the slow but generic method. */
|
|
wchar_t result;
|
|
struct __gconv_step_data data;
|
|
unsigned char inbuf[1];
|
|
const unsigned char *inptr = inbuf;
|
|
size_t dummy;
|
|
int status;
|
|
|
|
/* Tell where we want the result. */
|
|
data.__outbuf = (unsigned char *) &result;
|
|
data.__outbufend = data.__outbuf + sizeof (wchar_t);
|
|
data.__invocation_counter = 0;
|
|
data.__internal_use = 1;
|
|
data.__flags = __GCONV_IS_LAST;
|
|
data.__statep = &data.__state;
|
|
data.__trans = NULL;
|
|
|
|
/* Make sure we start in the initial state. */
|
|
memset (&data.__state, '\0', sizeof (mbstate_t));
|
|
|
|
/* Create the input string. */
|
|
inbuf[0] = c;
|
|
|
|
status = DL_CALL_FCT (fcts->towc->__fct,
|
|
(fcts->towc, &data, &inptr, inptr + 1,
|
|
NULL, &dummy, 0, 1));
|
|
|
|
if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
|
|
&& status != __GCONV_EMPTY_INPUT)
|
|
/* The conversion failed. */
|
|
result = WEOF;
|
|
|
|
return result;
|
|
}
|
|
}
|
|
weak_alias (__btowc, btowc)
|