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Diffstat (limited to 'lib/striconveh.h')
| -rw-r--r-- | lib/striconveh.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/lib/striconveh.h b/lib/striconveh.h new file mode 100644 index 00000000..98b4d0c5 --- /dev/null +++ b/lib/striconveh.h @@ -0,0 +1,120 @@ +/* Character set conversion with error handling. + Copyright (C) 2001-2007, 2009 Free Software Foundation, Inc. + Written by Bruno Haible and Simon Josefsson. + + This program 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 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _STRICONVEH_H +#define _STRICONVEH_H + +#include <stddef.h> +#if HAVE_ICONV +#include <iconv.h> +#endif + +#include "iconveh.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +#if HAVE_ICONV + +/* Convert an entire string from one encoding to another, using iconv. + The original string is at [SRC,...,SRC+SRCLEN-1]. + CD is the conversion descriptor from FROMCODE to TOCODE, or (iconv_t)(-1) if + the system does not support a direct conversion from FROMCODE to TOCODE. + CD1 is the conversion descriptor from FROM_CODESET to UTF-8 (or + (iconv_t)(-1) if FROM_CODESET is UTF-8). + CD2 is the conversion descriptor from UTF-8 to TO_CODESET (or (iconv_t)(-1) + if TO_CODESET is UTF-8). + If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this + array is filled with offsets into the result, i.e. the character starting + at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]], + and other offsets are set to (size_t)(-1). + *RESULTP and *LENGTH should initially be a scratch buffer and its size, + or *RESULTP can initially be NULL. + May erase the contents of the memory at *RESULTP. + Return value: 0 if successful, otherwise -1 and errno set. + If successful: The resulting string is stored in *RESULTP and its length + in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is + unchanged if no dynamic memory allocation was necessary. */ +extern int + mem_cd_iconveh (const char *src, size_t srclen, + iconv_t cd, iconv_t cd1, iconv_t cd2, + enum iconv_ilseq_handler handler, + size_t *offsets, + char **resultp, size_t *lengthp); + +/* Convert an entire string from one encoding to another, using iconv. + The original string is the NUL-terminated string starting at SRC. + CD is the conversion descriptor from FROMCODE to TOCODE, or (iconv_t)(-1) if + the system does not support a direct conversion from FROMCODE to TOCODE. + Both the "from" and the "to" encoding must use a single NUL byte at the end + of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32). + CD1 is the conversion descriptor from FROM_CODESET to UTF-8 (or + (iconv_t)(-1) if FROM_CODESET is UTF-8). + CD2 is the conversion descriptor from UTF-8 to TO_CODESET (or (iconv_t)(-1) + if TO_CODESET is UTF-8). + Allocate a malloced memory block for the result. + Return value: the freshly allocated resulting NUL-terminated string if + successful, otherwise NULL and errno set. */ +extern char * + str_cd_iconveh (const char *src, + iconv_t cd, iconv_t cd1, iconv_t cd2, + enum iconv_ilseq_handler handler); + +#endif + +/* Convert an entire string from one encoding to another, using iconv. + The original string is at [SRC,...,SRC+SRCLEN-1]. + If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this + array is filled with offsets into the result, i.e. the character starting + at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]], + and other offsets are set to (size_t)(-1). + *RESULTP and *LENGTH should initially be a scratch buffer and its size, + or *RESULTP can initially be NULL. + May erase the contents of the memory at *RESULTP. + Return value: 0 if successful, otherwise -1 and errno set. + If successful: The resulting string is stored in *RESULTP and its length + in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is + unchanged if no dynamic memory allocation was necessary. */ +extern int + mem_iconveh (const char *src, size_t srclen, + const char *from_codeset, const char *to_codeset, + enum iconv_ilseq_handler handler, + size_t *offsets, + char **resultp, size_t *lengthp); + +/* Convert an entire string from one encoding to another, using iconv. + The original string is the NUL-terminated string starting at SRC. + Both the "from" and the "to" encoding must use a single NUL byte at the + end of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32). + Allocate a malloced memory block for the result. + Return value: the freshly allocated resulting NUL-terminated string if + successful, otherwise NULL and errno set. */ +extern char * + str_iconveh (const char *src, + const char *from_codeset, const char *to_codeset, + enum iconv_ilseq_handler handler); + + +#ifdef __cplusplus +} +#endif + + +#endif /* _STRICONVEH_H */ |