iconv/gconv_builtin.c

   1 /* Table for builtin transformation mapping.
   2    Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    License, or (at your option) any later version.
  10
  11    The GNU C Library 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    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <limits.h>
  22 #include <string.h>
  23
  24 #include <gconv_int.h>
  25
  26 #include <assert.h>
  27
  28
  29 static struct builtin_map
  30 {
  31   const char *name;
  32   __gconv_fct fct;
  33   __gconv_init_fct init;
  34   __gconv_end_fct end;
  35
  36   int min_needed_from;
  37   int max_needed_from;
  38   int min_needed_to;
  39   int max_needed_to;
  40
  41 } map[] =
  42 {
  43 #define BUILTIN_TRANSFORMATION(From, ConstPfx, ConstLen, To, Cost, Name, \
  44                                Fct, Init, End, MinF, MaxF, MinT, MaxT) \
  45   {                                                                           \
  46     .name = Name,                                                             \
  47     .fct = Fct,                                                               \
  48     .init = Init,                                                             \
  49     .end = End,                                                               \
  50                                                                               \
  51     .min_needed_from = MinF,                                                  \
  52     .max_needed_from = MaxF,                                                  \
  53     .min_needed_to = MinT,                                                    \
  54     .max_needed_to = MaxT                                                     \
  55   },
  56 #define BUILTIN_ALIAS(From, To)
  57
  58 #include <gconv_builtin.h>
  59 };
  60
  61
  62 void
  63 internal_function
  64 __gconv_get_builtin_trans (const char *name, struct __gconv_step *step)
  65 {
  66   size_t cnt;
  67
  68   for (cnt = 0; cnt < sizeof (map) / sizeof (map[0]); ++cnt)
  69     if (strcmp (name, map[cnt].name) == 0)
  70       break;
  71
  72   assert (cnt < sizeof (map) / sizeof (map[0]));
  73
  74   step->__fct = map[cnt].fct;
  75   step->__init_fct = map[cnt].init;
  76   step->__end_fct = map[cnt].end;
  77   step->__counter = INT_MAX;
  78   step->__shlib_handle = NULL;
  79
  80   step->__min_needed_from = map[cnt].min_needed_from;
  81   step->__max_needed_from = map[cnt].max_needed_from;
  82   step->__min_needed_to = map[cnt].min_needed_to;
  83   step->__max_needed_to = map[cnt].max_needed_to;
  84
  85   /* None of the builtin converters handles stateful encoding.  */
  86   step->__stateful = 0;
  87 }