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author | Lorry Tar Creator <lorry-tar-importer@baserock.org> | 2014-12-24 07:38:37 +0000 |
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committer | <> | 2015-02-02 12:02:29 +0000 |
commit | 482840e61f86ca321838a91e902c41d40c098bbb (patch) | |
tree | 01ea2e242fd2792d19fe192476601587901db794 /gettext-tools/gnulib-lib/uniconv | |
download | gettext-tarball-482840e61f86ca321838a91e902c41d40c098bbb.tar.gz |
Imported from /home/lorry/working-area/delta_gettext-tarball/gettext-0.19.4.tar.xz.gettext-0.19.4
Diffstat (limited to 'gettext-tools/gnulib-lib/uniconv')
-rw-r--r-- | gettext-tools/gnulib-lib/uniconv/u8-conv-from-enc.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gettext-tools/gnulib-lib/uniconv/u8-conv-from-enc.c b/gettext-tools/gnulib-lib/uniconv/u8-conv-from-enc.c new file mode 100644 index 0000000..2d28cde --- /dev/null +++ b/gettext-tools/gnulib-lib/uniconv/u8-conv-from-enc.c @@ -0,0 +1,105 @@ +/* Conversion to UTF-8 from legacy encodings. + Copyright (C) 2002, 2006-2007, 2009-2014 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* Written by Bruno Haible <bruno@clisp.org>. */ + +#include <config.h> + +/* Specification. */ +#include "uniconv.h" + +#include <errno.h> +#include <stdlib.h> +#include <string.h> + +#include "c-strcaseeq.h" +#include "striconveha.h" +#include "unistr.h" + +uint8_t * +u8_conv_from_encoding (const char *fromcode, + enum iconv_ilseq_handler handler, + const char *src, size_t srclen, + size_t *offsets, + uint8_t *resultbuf, size_t *lengthp) +{ + if (STRCASEEQ (fromcode, "UTF-8", 'U','T','F','-','8',0,0,0,0)) + { + /* Conversion from UTF-8 to UTF-8. No need to go through iconv(). */ + uint8_t *result; + + if (u8_check ((const uint8_t *) src, srclen)) + { + errno = EILSEQ; + return NULL; + } + + if (offsets != NULL) + { + size_t i; + + for (i = 0; i < srclen; ) + { + int count = u8_mblen ((const uint8_t *) src + i, srclen - i); + /* We can rely on count > 0 because of the previous u8_check. */ + if (count <= 0) + abort (); + offsets[i] = i; + i++; + while (--count > 0) + offsets[i++] = (size_t)(-1); + } + } + + /* Memory allocation. */ + if (resultbuf != NULL && *lengthp >= srclen) + result = resultbuf; + else + { + result = (uint8_t *) malloc (srclen > 0 ? srclen : 1); + if (result == NULL) + { + errno = ENOMEM; + return NULL; + } + } + + memcpy ((char *) result, src, srclen); + *lengthp = srclen; + return result; + } + else + { + char *result = (char *) resultbuf; + size_t length = *lengthp; + + if (mem_iconveha (src, srclen, fromcode, "UTF-8", true, handler, + offsets, &result, &length) < 0) + return NULL; + + if (result == NULL) /* when (resultbuf == NULL && length == 0) */ + { + result = (char *) malloc (1); + if (result == NULL) + { + errno = ENOMEM; + return NULL; + } + } + *lengthp = length; + return (uint8_t *) result; + } +} |