/*
 * Copyright (C) 1999-2011, 2016 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 Lesser General Public
 * License as published by the Free Software Foundation; either version 2.1
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
 * If not, see <https://www.gnu.org/licenses/>.
 */

/*
 * CP50221 JISX0212 extensions
 */

static const unsigned short cp50221_0212_ext_2uni[112] = {
  /* 0x00 */
  0xfffd, 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176,
  0x2177, 0x2178, 0x2179, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
  /* 0x10 */
  0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xff07, 0xff02, 0xfffd,
  0xfffd, 0xfffd, 0x70bb, 0x4efc, 0x50f4, 0x51ec, 0x5307, 0x5324,
  /* 0x20 */
  0xfa0e, 0x548a, 0x5759, 0xfa0f, 0xfa10, 0x589e, 0x5bec, 0x5cf5,
  0x5d53, 0xfa11, 0x5fb7, 0x6085, 0x6120, 0x654e, 0xfffd, 0x6665,
  /* 0x30 */
  0xfa12, 0xf929, 0x6801, 0xfa13, 0xfa14, 0x6a6b, 0x6ae2, 0x6df8,
  0x6df2, 0x7028, 0xfa15, 0xfa16, 0x7501, 0x7682, 0x769e, 0xfa17,
  /* 0x40 */
  0x7930, 0xfa18, 0xfa19, 0xfa1a, 0xfa1b, 0x7ae7, 0xfa1c, 0xfa1d,
  0x7da0, 0x7dd6, 0xfa1e, 0x8362, 0xfa1f, 0x85b0, 0xfa20, 0xfa21,
  /* 0x50 */
  0x8807, 0xfa22, 0x8b7f, 0x8cf4, 0x8d76, 0xfa23, 0xfa24, 0xfa25,
  0x90de, 0xfa26, 0x9115, 0xfa27, 0xfa28, 0x9592, 0xf9dc, 0xfa29,
  /* 0x60 */
  0x973b, 0xfffd, 0x9751, 0xfa2a, 0xfa2b, 0xfa2c, 0x999e, 0x9ad9,
  0x9b72, 0xfa2d, 0x9ed1, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
};

static int
cp50221_0212_ext_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
{
  unsigned char c = *s;
  if (c < 0x70) {
    unsigned short wc = cp50221_0212_ext_2uni[c];
    if (wc != 0xfffd) {
      *pwc = (ucs4_t) wc;
      return 1;
    }
  }
  else if (c == 0xa1) {
    *pwc = 0x974d;
    return 1;
  }
  return RET_ILSEQ;
}

static const unsigned char cp50221_0212_ext_page21[16] = {
  0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, /* 0x70-0x77 */
  0x09, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
};
static const unsigned char cp50221_0212_ext_page53[40] = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, /* 0x00-0x07 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
  0x00, 0x00, 0x00, 0x00, 0x1f, 0x00, 0x00, 0x00, /* 0x20-0x27 */
};
static const unsigned char cp50221_0212_ext_page6d[16] = {
  0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf0-0xf7 */
  0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8-0xff */
};
static const unsigned char cp50221_0212_ext_page76[32] = {
  0x00, 0x00, 0x3d, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80-0x87 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x88-0x8f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90-0x97 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3e, 0x00, /* 0x98-0x9f */
};
static const unsigned char cp50221_0212_ext_page7d[56] = {
  0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0-0xb7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8-0xbf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0-0xc7 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49, 0x00, /* 0xd0-0xd7 */
};
static const unsigned char cp50221_0212_ext_page97[32] = {
  0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40-0x47 */
  0x00, 0x00, 0x00, 0x00, 0x00, 0xa1, 0x00, 0x00, /* 0x48-0x4f */
  0x00, 0x62, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
};
static const unsigned char cp50221_0212_ext_pagefa[40] = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x23, /* 0x08-0x0f */
  0x24, 0x29, 0x30, 0x33, 0x34, 0x3a, 0x3b, 0x3f, /* 0x10-0x17 */
  0x41, 0x42, 0x43, 0x44, 0x46, 0x47, 0x4a, 0x4c, /* 0x18-0x1f */
  0x4e, 0x4f, 0x51, 0x55, 0x56, 0x57, 0x59, 0x5b, /* 0x20-0x27 */
  0x5c, 0x5f, 0x63, 0x64, 0x65, 0x69, 0x00, 0x00, /* 0x28-0x2f */
};
static const unsigned char cp50221_0212_ext_pageff[8] = {
  0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x15, /* 0x00-0x07 */
};

static int
cp50221_0212_ext_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
{
  unsigned char c = 0;
  if (wc >= 0x2170 && wc < 0x2180)
    c = cp50221_0212_ext_page21[wc-0x2170];
  else if (wc == 0x4efc)
    c = 0x1b;
  else if (wc == 0x50f4)
    c = 0x1c;
  else if (wc == 0x51ec)
    c = 0x1d;
  else if (wc >= 0x5300 && wc < 0x5328)
    c = cp50221_0212_ext_page53[wc-0x5300];
  else if (wc == 0x548a)
    c = 0x21;
  else if (wc == 0x5759)
    c = 0x22;
  else if (wc == 0x589e)
    c = 0x25;
  else if (wc == 0x5bec)
    c = 0x26;
  else if (wc == 0x5cf5)
    c = 0x27;
  else if (wc == 0x5d53)
    c = 0x28;
  else if (wc == 0x5fb7)
    c = 0x2a;
  else if (wc == 0x6085)
    c = 0x2b;
  else if (wc == 0x6120)
    c = 0x2c;
  else if (wc == 0x654e)
    c = 0x2d;
  else if (wc == 0x6665)
    c = 0x2f;
  else if (wc == 0x6801)
    c = 0x32;
  else if (wc == 0x6a6b)
    c = 0x35;
  else if (wc == 0x6ae2)
    c = 0x36;
  else if (wc >= 0x6df0 && wc < 0x6e00)
    c = cp50221_0212_ext_page6d[wc-0x6df0];
  else if (wc == 0x7028)
    c = 0x39;
  else if (wc == 0x70bb)
    c = 0x1a;
  else if (wc == 0x7501)
    c = 0x3c;
  else if (wc >= 0x7680 && wc < 0x76a0)
    c = cp50221_0212_ext_page76[wc-0x7680];
  else if (wc == 0x7930)
    c = 0x40;
  else if (wc == 0x7ae7)
    c = 0x45;
  else if (wc >= 0x7da0 && wc < 0x7dd8)
    c = cp50221_0212_ext_page7d[wc-0x7da0];
  else if (wc == 0x8362)
    c = 0x4b;
  else if (wc == 0x85b0)
    c = 0x4d;
  else if (wc == 0x8807)
    c = 0x50;
  else if (wc == 0x8b7f)
    c = 0x52;
  else if (wc == 0x8cf4)
    c = 0x53;
  else if (wc == 0x8d76)
    c = 0x54;
  else if (wc == 0x90de)
    c = 0x58;
  else if (wc == 0x9115)
    c = 0x5a;
  else if (wc == 0x9592)
    c = 0x5d;
  else if (wc >= 0x9738 && wc < 0x9758)
    c = cp50221_0212_ext_page97[wc-0x9738];
  else if (wc == 0x999e)
    c = 0x66;
  else if (wc == 0x9ad9)
    c = 0x67;
  else if (wc == 0x9b72)
    c = 0x68;
  else if (wc == 0x9ed1)
    c = 0x6a;
  else if (wc == 0xf929)
    c = 0x31;
  else if (wc == 0xf9dc)
    c = 0x5e;
  else if (wc >= 0xfa08 && wc < 0xfa30)
    c = cp50221_0212_ext_pagefa[wc-0xfa08];
  else if (wc >= 0xff00 && wc < 0xff08)
    c = cp50221_0212_ext_pageff[wc-0xff00];
  if (c != 0) {
    *r = c;
    return 1;
  }
  return RET_ILUNI;
}