lib/strerror-pr29.c

   1 /* strerror-pr29.c --- Convert PR29 errors into text.
   2  * Copyright (C) 2004  Simon Josefsson
   3  *
   4  * This file is part of GNU Libidn.
   5  *
   6  * GNU Libidn is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * GNU Libidn is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with GNU Libidn; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  */
  21
  22 #if HAVE_CONFIG_H
  23 # include "config.h"
  24 #endif
  25
  26 #include "pr29.h"
  27
  28 #include "gettext.h"
  29 #define _(String) dgettext (PACKAGE, String)
  30
  31 /**
  32  * pr29_strerror - return string describing pr29 error code
  33  * @rc: an #Pr29_rc return code.
  34  *
  35  * Convert a return code integer to a text string.  This string can be
  36  * used to output a diagnostic message to the user.
  37  *
  38  * PR29_SUCCESS: Successful operation.  This value is guaranteed to
  39  *   always be zero, the remaining ones are only guaranteed to hold
  40  *   non-zero values, for logical comparison purposes.
  41  * PR29_PROBLEM: A problem sequence was encountered.
  42  * PR29_STRINGPREP_ERROR: The character set conversion failed (only
  43  *   for pr29_8() and pr29_8z()).
  44  *
  45  * Return value: Returns a pointer to a statically allocated string
  46  *   containing a description of the error with the return code @rc.
  47  **/
  48 const char *
  49 pr29_strerror (Pr29_rc rc)
  50 {
  51   const char *p;
  52
  53   bindtextdomain (PACKAGE, LOCALEDIR);
  54
  55   switch (rc)
  56     {
  57     case PR29_SUCCESS:
  58       p = _("Success");
  59       break;
  60
  61     case PR29_PROBLEM:
  62       p = _("String not idempotent under Unicode NFKC normalization");
  63       break;
  64
  65     case PR29_STRINGPREP_ERROR:
  66       p = _("String preparation failed");
  67       break;
  68
  69     default:
  70       p = _("Unknown error");
  71       break;
  72     }
  73
  74   return p;
  75 }