extras/iconv_string.h

   1 /* Copyright (C) 1999-2001 Bruno Haible.
   2    This file is not part of the GNU LIBICONV Library.
   3    This file is put into the public domain.  */
   4
   5 /*
   6  * This C function converts an entire string from one encoding to another,
   7  * using iconv. Easier to use than iconv() itself, and supports autodetect
   8  * encodings on input.
   9  *
  10  *   int iconv_string (const char* tocode, const char* fromcode,
  11  *                     const char* start, const char* end,
  12  *                     char** resultp, size_t* lengthp)
  13  *
  14  * Converts a memory region given in encoding FROMCODE to a new memory
  15  * region in encoding TOCODE. FROMCODE and TOCODE are as for iconv_open(3),
  16  * except that FROMCODE may be one of the values
  17  *    "autodetect_utf8"          supports ISO-8859-1 and UTF-8
  18  *    "autodetect_jp"            supports EUC-JP, ISO-2022-JP-2 and SHIFT_JIS
  19  *    "autodetect_kr"            supports EUC-KR and ISO-2022-KR
  20  * The input is in the memory region between start (inclusive) and end
  21  * (exclusive). If resultp is not NULL, the output string is stored in
  22  * *resultp; malloc/realloc is used to allocate the result.
  23  *
  24  * This function does not treat zero characters specially.
  25  *
  26  * Return value: 0 if successful, otherwise -1 and errno set. Particular
  27  * errno values: EILSEQ and ENOMEM.
  28  *
  29  * Example:
  30  *   const char* s = ...;
  31  *   char* result = NULL;
  32  *   if (iconv_string("UCS-4-INTERNAL", "autodetect_utf8",
  33  *                    s, s+strlen(s)+1, &result, NULL) < 0)
  34  *     perror("iconv_string");
  35  *
  36  */
  37 #include <stddef.h>
  38
  39 #ifdef __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 extern int iconv_string (const char* tocode, const char* fromcode, const char* start, const char* end, char** resultp, size_t* lengthp);
  44
  45 #ifdef __cplusplus
  46 }
  47 #endif