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/*
 * 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., 51 Franklin Street,
 * Fifth Floor, Boston, MA 02110-1301, USA.
 */

/*
 * CP1254
 */

static const unsigned short cp1254_2uni_1[32] = {
  /* 0x80 */
  0x20ac0xfffd0x201a0x01920x201e0x20260x20200x2021,
  0x02c60x20300x01600x20390x01520xfffd0xfffd0xfffd,
  /* 0x90 */
  0xfffd0x20180x20190x201c0x201d0x20220x20130x2014,
  0x02dc0x21220x01610x203a0x01530xfffd0xfffd0x0178,
};
static const unsigned short cp1254_2uni_2[16] = {
  /* 0xd0 */
  0x011e0x00d10x00d20x00d30x00d40x00d50x00d60x00d7,
  0x00d80x00d90x00da0x00db0x00dc0x01300x015e0x00df,
};
static const unsigned short cp1254_2uni_3[16] = {
  /* 0xf0 */
  0x011f0x00f10x00f20x00f30x00f40x00f50x00f60x00f7,
  0x00f80x00f90x00fa0x00fb0x00fc0x01310x015f0x00ff,
};

static int
cp1254_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
{
  unsigned char c = *s;
  if (c < 0x80) {
    *pwc = (ucs4_t) c;
    return 1;
  }
  else if (c < 0xa0) {
    unsigned short wc = cp1254_2uni_1[c-0x80];
    if (wc != 0xfffd) {
      *pwc = (ucs4_t) wc;
      return 1;
    }
  }
  else if (c < 0xd0) {
    *pwc = (ucs4_t) c;
    return 1;
  }
  else if (c < 0xe0) {
    *pwc = (ucs4_t) cp1254_2uni_2[c-0xd0];
    return 1;
  }
  else if (c < 0xf0) {
    *pwc = (ucs4_t) c;
    return 1;
  }
  else {
    *pwc = (ucs4_t) cp1254_2uni_3[c-0xf0];
    return 1;
  }
  return RET_ILSEQ;
}

static const unsigned char cp1254_page00[48] = {
  0x000xd10xd20xd30xd40xd50xd60xd7/* 0xd0-0xd7 */
  0xd80xd90xda0xdb0xdc0x000x000xdf/* 0xd8-0xdf */
  0xe00xe10xe20xe30xe40xe50xe60xe7/* 0xe0-0xe7 */
  0xe80xe90xea0xeb0xec0xed0xee0xef/* 0xe8-0xef */
  0x000xf10xf20xf30xf40xf50xf60xf7/* 0xf0-0xf7 */
  0xf80xf90xfa0xfb0xfc0x000x000xff/* 0xf8-0xff */
};
static const unsigned char cp1254_page01[128] = {
  0x000x000x000x000x000x000xd00xf0/* 0x18-0x1f */
  0x000x000x000x000x000x000x000x00/* 0x20-0x27 */
  0x000x000x000x000x000x000x000x00/* 0x28-0x2f */
  0xdd0xfd0x000x000x000x000x000x00/* 0x30-0x37 */
  0x000x000x000x000x000x000x000x00/* 0x38-0x3f */
  0x000x000x000x000x000x000x000x00/* 0x40-0x47 */
  0x000x000x000x000x000x000x000x00/* 0x48-0x4f */
  0x000x000x8c0x9c0x000x000x000x00/* 0x50-0x57 */
  0x000x000x000x000x000x000xde0xfe/* 0x58-0x5f */
  0x8a0x9a0x000x000x000x000x000x00/* 0x60-0x67 */
  0x000x000x000x000x000x000x000x00/* 0x68-0x6f */
  0x000x000x000x000x000x000x000x00/* 0x70-0x77 */
  0x9f0x000x000x000x000x000x000x00/* 0x78-0x7f */
  0x000x000x000x000x000x000x000x00/* 0x80-0x87 */
  0x000x000x000x000x000x000x000x00/* 0x88-0x8f */
  0x000x000x830x000x000x000x000x00/* 0x90-0x97 */
};
static const unsigned char cp1254_page02[32] = {
  0x000x000x000x000x000x000x880x00/* 0xc0-0xc7 */
  0x000x000x000x000x000x000x000x00/* 0xc8-0xcf */
  0x000x000x000x000x000x000x000x00/* 0xd0-0xd7 */
  0x000x000x000x000x980x000x000x00/* 0xd8-0xdf */
};
static const unsigned char cp1254_page20[48] = {
  0x000x000x000x960x970x000x000x00/* 0x10-0x17 */
  0x910x920x820x000x930x940x840x00/* 0x18-0x1f */
  0x860x870x950x000x000x000x850x00/* 0x20-0x27 */
  0x000x000x000x000x000x000x000x00/* 0x28-0x2f */
  0x890x000x000x000x000x000x000x00/* 0x30-0x37 */
  0x000x8b0x9b0x000x000x000x000x00/* 0x38-0x3f */
};

static int
cp1254_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
{
  unsigned char c = 0;
  if (wc < 0x0080) {
    *r = wc;
    return 1;
  }
  else if (wc >= 0x00a0 && wc < 0x00d0)
    c = wc;
  else if (wc >= 0x00d0 && wc < 0x0100)
    c = cp1254_page00[wc-0x00d0];
  else if (wc >= 0x0118 && wc < 0x0198)
    c = cp1254_page01[wc-0x0118];
  else if (wc >= 0x02c0 && wc < 0x02e0)
    c = cp1254_page02[wc-0x02c0];
  else if (wc >= 0x2010 && wc < 0x2040)
    c = cp1254_page20[wc-0x2010];
  else if (wc == 0x20ac)
    c = 0x80;
  else if (wc == 0x2122)
    c = 0x99;
  if (c != 0) {
    *r = c;
    return 1;
  }
  return RET_ILUNI;
}