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libiconv

    1: /*
    2:  * Copyright (C) 1999-2001 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: /*
   22:  * CP922
   23:  */
   24: 
   25: static const unsigned short cp922_2uni_1[16] = {
   26:   /* 0xa0 */
   27:   0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
   28:   0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x203e,
   29: };
   30: static const unsigned short cp922_2uni_2[16] = {
   31:   /* 0xd0 */
   32:   0x0160, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
   33:   0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x017d, 0x00df,
   34: };
   35: static const unsigned short cp922_2uni_3[16] = {
   36:   /* 0xf0 */
   37:   0x0161, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7,
   38:   0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x017e, 0x00ff,
   39: };
   40: 
   41: static int
   42: cp922_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
   43: {
   44:   unsigned char c = *s;
   45:   if (c < 0xa0)
   46:     *pwc = (ucs4_t) c;
   47:   else if (c < 0xb0)
   48:     *pwc = (ucs4_t) cp922_2uni_1[c-0xa0];
   49:   else if (c < 0xd0)
   50:     *pwc = (ucs4_t) c;
   51:   else if (c < 0xe0)
   52:     *pwc = (ucs4_t) cp922_2uni_2[c-0xd0];
   53:   else if (c < 0xf0)
   54:     *pwc = (ucs4_t) c;
   55:   else
   56:     *pwc = (ucs4_t) cp922_2uni_3[c-0xf0];
   57:   return 1;
   58: }
   59: 
   60: static const unsigned char cp922_page00[88] = {
   61:   0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
   62:   0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
   63:   0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0xb8-0xbf */
   64:   0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
   65:   0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
   66:   0x00, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
   67:   0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0x00, 0xdf, /* 0xd8-0xdf */
   68:   0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
   69:   0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
   70:   0x00, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
   71:   0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0x00, 0xff, /* 0xf8-0xff */
   72: };
   73: static const unsigned char cp922_page01[32] = {
   74:   0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
   75:   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
   76:   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
   77:   0x00, 0x00, 0x00, 0x00, 0x00, 0xde, 0xfe, 0x00, /* 0x78-0x7f */
   78: };
   79: 
   80: static int
   81: cp922_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
   82: {
   83:   unsigned char c = 0;
   84:   if (wc < 0x00a8) {
   85:     *r = wc;
   86:     return 1;
   87:   }
   88:   else if (wc >= 0x00a8 && wc < 0x0100)
   89:     c = cp922_page00[wc-0x00a8];
   90:   else if (wc >= 0x0160 && wc < 0x0180)
   91:     c = cp922_page01[wc-0x0160];
   92:   else if (wc == 0x203e)
   93:     c = 0xaf;
   94:   if (c != 0) {
   95:     *r = c;
   96:     return 1;
   97:   }
   98:   return RET_ILUNI;
   99: }