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Diffstat (limited to 'REORG.TODO/iconvdata/8bit-gap.c')
| -rw-r--r-- | REORG.TODO/iconvdata/8bit-gap.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/8bit-gap.c b/REORG.TODO/iconvdata/8bit-gap.c new file mode 100644 index 0000000000..99f59c20e7 --- /dev/null +++ b/REORG.TODO/iconvdata/8bit-gap.c @@ -0,0 +1,117 @@ +/* Generic conversion to and from 8bit charsets, + converting from UCS using gaps. + Copyright (C) 1997-2017 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 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, see + <http://www.gnu.org/licenses/>. */ + +#include <dlfcn.h> +#include <stdint.h> + +struct gap +{ + uint16_t start; + uint16_t end; + int32_t idx; +}; + +/* Now we can include the tables. */ +#include TABLES + +#ifndef NONNUL +# define NONNUL(c) ((c) != '\0') +#endif + + +#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 +#define ONE_DIRECTION 0 + + +/* 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 && __builtin_expect (ch == L'\0', 0) && NONNUL (*inptr)) \ + { \ + /* This is an illegal character. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (1); \ + } \ + else \ + { \ + put32 (outptr, ch); \ + outptr += 4; \ + } \ + \ + ++inptr; \ + } +#define LOOP_NEED_FLAGS +#define ONEBYTE_BODY \ + { \ + uint32_t ch = to_ucs4[c]; \ + \ + if (HAS_HOLES && __builtin_expect (ch == L'\0', 0) && NONNUL (c)) \ + return WEOF; \ + else \ + return ch; \ + } +#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 = get32 (inptr); \ + unsigned char res; \ + \ + if (__glibc_unlikely (ch >= 0xffff)) \ + { \ + UNICODE_TAG_HANDLER (ch, 4); \ + rp = NULL; \ + } \ + else \ + while (ch > rp->end) \ + ++rp; \ + if (__builtin_expect (rp == NULL, 0) \ + || __builtin_expect (ch < rp->start, 0) \ + || (res = from_ucs4[ch + rp->idx], \ + __builtin_expect (res, '\1') == '\0' && ch != 0)) \ + { \ + /* This is an illegal character. */ \ + STANDARD_TO_LOOP_ERR_HANDLER (4); \ + } \ + \ + *outptr++ = res; \ + inptr += 4; \ + } +#define LOOP_NEED_FLAGS +#include <iconv/loop.c> + + +/* Now define the toplevel functions. */ +#include <iconv/skeleton.c> |