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libiconv 1.16

    1: /*
    2:  * Copyright (C) 1999-2001, 2016 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, see <https://www.gnu.org/licenses/>.
   18:  */
   19: 
   20: /*
   21:  * JISX0201.1976-0
   22:  */
   23: 
   24: static int
   25: jisx0201_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
   26: {
   27:   unsigned char c = *s;
   28:   if (c < 0x80) {
   29:     if (c == 0x5c)
   30:       *pwc = (ucs4_t) 0x00a5;
   31:     else if (c == 0x7e)
   32:       *pwc = (ucs4_t) 0x203e;
   33:     else
   34:       *pwc = (ucs4_t) c;
   35:     return 1;
   36:   } else {
   37:     if (c >= 0xa1 && c < 0xe0) {
   38:       *pwc = (ucs4_t) c + 0xfec0;
   39:       return 1;
   40:     }
   41:   }
   42:   return RET_ILSEQ;
   43: }
   44: 
   45: static int
   46: jisx0201_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
   47: {
   48:   if (wc < 0x0080 && !(wc == 0x005c || wc == 0x007e)) {
   49:     *r = wc;
   50:     return 1;
   51:   }
   52:   if (wc == 0x00a5) {
   53:     *r = 0x5c;
   54:     return 1;
   55:   }
   56:   if (wc == 0x203e) {
   57:     *r = 0x7e;
   58:     return 1;
   59:   }
   60:   if (wc >= 0xff61 && wc < 0xffa0) {
   61:     *r = wc - 0xfec0;
   62:     return 1;
   63:   }
   64:   return RET_ILUNI;
   65: }