/*
 * Copyright (C) 1996, jack
 *
 * This 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.
 *
 * This 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 this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/* $Id: mbbtombc.c,v 1.1 1996/06/23 11:46:35 jack Exp $ */

#include <mbstring.h>

static unsigned short alnmap[] =
{
  0x8140, 0x8149, 0x8168, 0x8194, 0x8190, 0x8193, 0x8195, 0x8166, /* 20-2f */
  0x8169, 0x816a, 0x8196, 0x817b, 0x8143, 0x817c, 0x8144, 0x815e,
  0x824f, 0x8250, 0x8251, 0x8252, 0x8253, 0x8254, 0x8255, 0x8256, /* 30-3f */
  0x8257, 0x8258, 0x8146, 0x8147, 0x8183, 0x8181, 0x8184, 0x8148,
  0x8197, 0x8260, 0x8261, 0x8262, 0x8263, 0x8264, 0x8265, 0x8266, /* 40-4f */
  0x8267, 0x8268, 0x8269, 0x826a, 0x826b, 0x826c, 0x826d, 0x826e,
  0x826f, 0x8270, 0x8271, 0x8272, 0x8273, 0x8274, 0x8275, 0x8276, /* 50-5f */
  0x8277, 0x8278, 0x8279, 0x816d, 0x818f, 0x816e, 0x814f, 0x8151,
  0x8165, 0x8281, 0x8282, 0x8283, 0x8284, 0x8285, 0x8286, 0x8287, /* 60-6f */
  0x8288, 0x8289, 0x828a, 0x828b, 0x828c, 0x828d, 0x828e, 0x828f,
  0x8290, 0x8291, 0x8292, 0x8293, 0x8294, 0x8295, 0x8296, 0x8297, /* 70-7e */
  0x8298, 0x8299, 0x829a, 0x816f, 0x8162, 0x8170, 0x8160,
};

static unsigned short kanamap[] =
{
  0x8142, 0x8175, 0x8176, 0x8141, 0x8145, 0x8392, 0x8340, 0x8342, /* a1-b0 */
  0x8344, 0x8346, 0x8348, 0x8383, 0x8385, 0x8387, 0x8362, 0x815b,
  0x8341, 0x8343, 0x8345, 0x8347, 0x8349, 0x834a, 0x834c, 0x834e, /* b1-c0 */
  0x8350, 0x8352, 0x8354, 0x8356, 0x8358, 0x835a, 0x835c, 0x835e,
  0x8360, 0x8363, 0x8365, 0x8367, 0x8369, 0x836a, 0x836b, 0x836c, /* c1-d0 */
  0x836d, 0x836e, 0x8371, 0x8374, 0x8377, 0x837a, 0x837d, 0x837e,
  0x8380, 0x8381, 0x8382, 0x8384, 0x8386, 0x8388, 0x8389, 0x838a, /* d1-df */
  0x838b, 0x838c, 0x838d, 0x838f, 0x8393, 0x814a, 0x814b,
};

int
_mbbtombc (int c)
{
  /* alphabet, digit, punctuation, etc */
  if (c >= 0x20 && c <= 0x7e)
    return (int) alnmap[c - 0x20];

  /* katakana */
  if (c >= 0xa1 && c <= 0xdf)
    return (int) kanamap[c - 0xa1];

  /* no conversion (nothing) */
  return c;
}