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libiconv

    1: /*
    2:  * Copyright (C) 1999-2009 Free Software Foundation, Inc.
    3:  * This file is part of the GNU LIBICONV Library.
    4:  *
    5:  * The GNU LIBICONV Library is free software; you can redistribute it
    6:  * and/or modify it under the terms of the GNU Library General Public
    7:  * License as published by the Free Software Foundation; either version 2
    8:  * of the License, or (at your option) any later version.
    9:  *
   10:  * The GNU LIBICONV Library is distributed in the hope that it will be
   11:  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   12:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   13:  * Library General Public License for more details.
   14:  *
   15:  * You should have received a copy of the GNU Library General Public
   16:  * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
   17:  * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
   18:  * Fifth Floor, Boston, MA 02110-1301, USA.
   19:  */
   20: 
   21: /* Part 2 of iconv_open.
   22:    Input:
   23:      struct conv_struct * cd;
   24:      unsigned int from_index;
   25:      int from_wchar;
   26:      unsigned int to_index;
   27:      int to_wchar;
   28:      int transliterate;
   29:      int discard_ilseq;
   30:    Output: none.
   31:    Side effects: Fills cd.
   32:  */
   33: 
   34:   cd->iindex = from_index;
   35:   cd->ifuncs = all_encodings[from_index].ifuncs;
   36:   cd->oindex = to_index;
   37:   cd->ofuncs = all_encodings[to_index].ofuncs;
   38:   cd->oflags = all_encodings[to_index].oflags;
   39:   /* Initialize the loop functions. */
   40: #if HAVE_MBRTOWC
   41:   if (to_wchar) {
   42: #if HAVE_WCRTOMB
   43:     if (from_wchar) {
   44:       cd->lfuncs.loop_convert = wchar_id_loop_convert;
   45:       cd->lfuncs.loop_reset = wchar_id_loop_reset;
   46:     } else
   47: #endif
   48:     {
   49:       cd->lfuncs.loop_convert = wchar_to_loop_convert;
   50:       cd->lfuncs.loop_reset = wchar_to_loop_reset;
   51:     }
   52:   } else
   53: #endif
   54:   {
   55: #if HAVE_WCRTOMB
   56:     if (from_wchar) {
   57:       cd->lfuncs.loop_convert = wchar_from_loop_convert;
   58:       cd->lfuncs.loop_reset = wchar_from_loop_reset;
   59:     } else
   60: #endif
   61:     {
   62:       cd->lfuncs.loop_convert = unicode_loop_convert;
   63:       cd->lfuncs.loop_reset = unicode_loop_reset;
   64:     }
   65:   }
   66:   /* Initialize the states. */
   67:   memset(&cd->istate,'\0',sizeof(state_t));
   68:   memset(&cd->ostate,'\0',sizeof(state_t));
   69:   /* Initialize the operation flags. */
   70:   cd->transliterate = transliterate;
   71:   cd->discard_ilseq = discard_ilseq;
   72:   #ifndef LIBICONV_PLUG
   73:   cd->fallbacks.mb_to_uc_fallback = NULL;
   74:   cd->fallbacks.uc_to_mb_fallback = NULL;
   75:   cd->fallbacks.mb_to_wc_fallback = NULL;
   76:   cd->fallbacks.wc_to_mb_fallback = NULL;
   77:   cd->fallbacks.data = NULL;
   78:   cd->hooks.uc_hook = NULL;
   79:   cd->hooks.wc_hook = NULL;
   80:   cd->hooks.data = NULL;
   81:   #endif
   82:   /* Initialize additional fields. */
   83:   if (from_wchar != to_wchar) {
   84:     struct wchar_conv_struct * wcd = (struct wchar_conv_struct *) cd;
   85: #if HAVE_WCRTOMB || HAVE_MBRTOWC
   86:     memset(&wcd->state,'\0',sizeof(mbstate_t));
   87: #endif
   88:   }
   89:   /* Done. */