/*************************************************************************
 *
 *  $RCSfile: xlat.c,v $
 *
 *  $Revision: 1.1.1.1 $
 *
 *  last change: $Author: pl $ $Date: 2001-05-08 11:46:02 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): Alexander Gelfenbain
 *
 *
 ************************************************************************/

/* $Id: xlat.c,v 1.1.1.1 2001-05-08 11:46:02 pl Exp $
 *
 * Data translation from Unicode to MS encodings
 * If the host system provides this functionality
 * this file should be rewritten to use it and
 * the large translation arrays should be removed
 *
 * Author: Alexander Gelfenbain
 *
  */

#include "xlat.h"

#include "u2big5.inc"
#include "u2johab.inc"
#include "u2prc.inc"
#include "u2shiftjis.inc"
#include "u2wansung.inc"

#define MISSING_CODE 0

static uint16 xlat(uint16pair p[], uint32 n, uint16 src)
{
    int l = 0, r = n - 1, i;
    uint16 t, res = MISSING_CODE;

    do {
        i = (l + r) >> 1;
        t = p[i].s;
        if (src >= t) l = i + 1;
        if (src <= t) r = i - 1;
    } while (l <= r);

    if (l - r == 2) {
        res =  p[l-1].d;
    }

    return res;
}

uint16 TranslateChar12(uint16 src)
{
    return xlat(xlat_1_2, sizeof(xlat_1_2) / sizeof(xlat_1_2[0]), src);
}

uint16 TranslateChar13(uint16 src)
{
    return xlat(xlat_1_3, sizeof(xlat_1_3) / sizeof(xlat_1_3[0]), src);
}

uint16 TranslateChar14(uint16 src)
{
    return xlat(xlat_1_4, sizeof(xlat_1_4) / sizeof(xlat_1_4[0]), src);
}

uint16 TranslateChar15(uint16 src)
{
    return xlat(xlat_1_5, sizeof(xlat_1_5) / sizeof(xlat_1_5[0]), src);
}

uint16 TranslateChar16(uint16 src)
{
    return xlat(xlat_1_6, sizeof(xlat_1_6) / sizeof(xlat_1_5[0]), src);
}

void TranslateString12(uint16 *src, uint16 *dst, uint32 n)
{
    int i;
    uint16 lastS, lastD;

    if (n == 0) return;

    lastD = dst[0] = xlat(xlat_1_2, sizeof(xlat_1_2) / sizeof(xlat_1_2[0]), lastS = src[0]);

    for (i=1; i < n; i++) {
        if (src[i] == lastS) {
            dst[i] = lastD;
        } else {
            lastD = dst[i] = xlat(xlat_1_2, sizeof(xlat_1_2) / sizeof(xlat_1_2[0]), lastS = src[i]);
        }
    }
}

void TranslateString13(uint16 *src, uint16 *dst, uint32 n)
{
    int i;
    uint16 lastS, lastD;

    if (n == 0) return;

    lastD = dst[0] = xlat(xlat_1_3, sizeof(xlat_1_3) / sizeof(xlat_1_3[0]), lastS = src[0]);

    for (i=1; i < n; i++) {
        if (src[i] == lastS) {
            dst[i] = lastD;
        } else {
            lastD = dst[i] = xlat(xlat_1_3, sizeof(xlat_1_3) / sizeof(xlat_1_3[0]), lastS = src[i]);
        }
    }
}

void TranslateString14(uint16 *src, uint16 *dst, uint32 n)
{
    int i;
    uint16 lastS, lastD;

    if (n == 0) return;

    lastD = dst[0] = xlat(xlat_1_4, sizeof(xlat_1_4) / sizeof(xlat_1_4[0]), lastS = src[0]);

    for (i=1; i < n; i++) {
        if (src[i] == lastS) {
            dst[i] = lastD;
        } else {
            lastD = dst[i] = xlat(xlat_1_4, sizeof(xlat_1_4) / sizeof(xlat_1_4[0]), lastS = src[i]);
        }
    }
}

void TranslateString15(uint16 *src, uint16 *dst, uint32 n)
{
    int i;
    uint16 lastS, lastD;

    if (n == 0) return;

    lastD = dst[0] = xlat(xlat_1_5, sizeof(xlat_1_5) / sizeof(xlat_1_5[0]), lastS = src[0]);

    for (i=1; i < n; i++) {
        if (src[i] == lastS) {
            dst[i] = lastD;
        } else {
            lastD = dst[i] = xlat(xlat_1_5, sizeof(xlat_1_5) / sizeof(xlat_1_5[0]), lastS = src[i]);
        }
    }
}

void TranslateString16(uint16 *src, uint16 *dst, uint32 n)
{
    int i;
    uint16 lastS, lastD;

    if (n == 0) return;

    lastD = dst[0] = xlat(xlat_1_6, sizeof(xlat_1_6) / sizeof(xlat_1_6[0]), lastS = src[0]);

    for (i=1; i < n; i++) {
        if (src[i] == lastS) {
            dst[i] = lastD;
        } else {
            lastD = dst[i] = xlat(xlat_1_6, sizeof(xlat_1_6) / sizeof(xlat_1_6[0]), lastS = src[i]);
        }
    }
}