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thodg/libiconv/lib/iso8859_6.h

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  • Author : Bruno Haible
    Date : 2001-05-25 19:21:53
    Hash : db94e408
    Message : Decouple the mbtowc and wctomb calling conventions.

  • lib/iso8859_6.h
  • /*
     * Copyright (C) 1999-2001 Free Software Foundation, Inc.
     * This file is part of the GNU LIBICONV Library.
     *
     * The GNU LIBICONV Library is free software; you can redistribute it
     * and/or modify it under the terms of the GNU Library General Public
     * License as published by the Free Software Foundation; either version 2
     * of the License, or (at your option) any later version.
     *
     * The GNU LIBICONV Library 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
     * Library General Public License for more details.
     *
     * You should have received a copy of the GNU Library General Public
     * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
     * If not, write to the Free Software Foundation, Inc., 59 Temple Place -
     * Suite 330, Boston, MA 02111-1307, USA.
     */
    
    /*
     * ISO-8859-6
     */
    
    static const unsigned short iso8859_6_2uni[96] = {
      /* 0xa0 */
      0x00a0, 0xfffd, 0xfffd, 0xfffd, 0x00a4, 0xfffd, 0xfffd, 0xfffd,
      0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x060c, 0x00ad, 0xfffd, 0xfffd,
      /* 0xb0 */
      0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
      0xfffd, 0xfffd, 0xfffd, 0x061b, 0xfffd, 0xfffd, 0xfffd, 0x061f,
      /* 0xc0 */
      0xfffd, 0x0621, 0x0622, 0x0623, 0x0624, 0x0625, 0x0626, 0x0627,
      0x0628, 0x0629, 0x062a, 0x062b, 0x062c, 0x062d, 0x062e, 0x062f,
      /* 0xd0 */
      0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x0637,
      0x0638, 0x0639, 0x063a, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
      /* 0xe0 */
      0x0640, 0x0641, 0x0642, 0x0643, 0x0644, 0x0645, 0x0646, 0x0647,
      0x0648, 0x0649, 0x064a, 0x064b, 0x064c, 0x064d, 0x064e, 0x064f,
      /* 0xf0 */
      0x0650, 0x0651, 0x0652, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
      0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
    };
    
    static int
    iso8859_6_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
    {
      unsigned char c = *s;
      if (c < 0xa0) {
        *pwc = (ucs4_t) c;
        return 1;
      }
      else {
        unsigned short wc = iso8859_6_2uni[c-0xa0];
        if (wc != 0xfffd) {
          *pwc = (ucs4_t) wc;
          return 1;
        }
      }
      return RET_ILSEQ;
    }
    
    static const unsigned char iso8859_6_page00[16] = {
      0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
      0x00, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
    };
    static const unsigned char iso8859_6_page06[80] = {
      0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, /* 0x08-0x0f */
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
      0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0x18-0x1f */
      0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
      0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
      0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
      0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
      0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
      0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
      0xf0, 0xf1, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
    };
    
    static int
    iso8859_6_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
    {
      unsigned char c = 0;
      if (wc < 0x00a0) {
        *r = wc;
        return 1;
      }
      else if (wc >= 0x00a0 && wc < 0x00b0)
        c = iso8859_6_page00[wc-0x00a0];
      else if (wc >= 0x0608 && wc < 0x0658)
        c = iso8859_6_page06[wc-0x0608];
      if (c != 0) {
        *r = c;
        return 1;
      }
      return RET_ILUNI;
    }