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/* Generic conversion to and from 8bit charsets,
converting from UCS using gaps.
Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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 <stdint.h>
struct gap
{
uint16_t start;
uint16_t end;
int32_t idx;
};
/* Now we can include the tables. */
#include TABLES
#define FROM_LOOP from_gap
#define TO_LOOP to_gap
#define DEFINE_INIT 1
#define DEFINE_FINI 1
#define MIN_NEEDED_FROM 1
#define MIN_NEEDED_TO 4
/* First define the conversion function from the 8bit charset to UCS4. */
#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
#define LOOPFCT FROM_LOOP
#define BODY \
{ \
uint32_t ch = to_ucs4[*inptr]; \
\
if (HAS_HOLES && ch == L'\0' && *inptr != '\0') \
{ \
/* This is an illegal character. */ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
*((uint32_t *) outptr)++ = ch; \
++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 LOOPFCT TO_LOOP
#define BODY \
{ \
const struct gap *rp = from_idx; \
uint32_t ch = *((uint32_t *) inptr); \
unsigned char res; \
\
if (ch >= 0xffff) \
{ \
/* This is an illegal character. */ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
while (ch > rp->end) \
++rp; \
if (ch < rp->start) \
{ \
/* This is an illegal character. */ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
res = from_ucs4[ch + rp->idx]; \
if (ch != 0 && res == '\0') \
{ \
/* This is an illegal character. */ \
result = __GCONV_ILLEGAL_INPUT; \
break; \
} \
\
*outptr++ = res; \
inptr += 4; \
}
#include <iconv/loop.c>
/* Now define the toplevel functions. */
#include <iconv/skeleton.c>
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