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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: xlat.c,v $
 * $Revision: 1.4 $
 *
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/* $Id: xlat.c,v 1.4 2008-04-11 10:19:41 rt 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 sal_uInt16 xlat(sal_uInt16pair p[], sal_uInt32 n, sal_uInt16 src)
{
    int l = 0, r = n - 1, i;
    sal_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;
}

sal_uInt16 TranslateChar12(sal_uInt16 src)
{
    return xlat(xlat_1_2, sizeof(xlat_1_2) / sizeof(xlat_1_2[0]), src);
}

sal_uInt16 TranslateChar13(sal_uInt16 src)
{
    return xlat(xlat_1_3, sizeof(xlat_1_3) / sizeof(xlat_1_3[0]), src);
}

sal_uInt16 TranslateChar14(sal_uInt16 src)
{
    return xlat(xlat_1_4, sizeof(xlat_1_4) / sizeof(xlat_1_4[0]), src);
}

sal_uInt16 TranslateChar15(sal_uInt16 src)
{
    return xlat(xlat_1_5, sizeof(xlat_1_5) / sizeof(xlat_1_5[0]), src);
}

sal_uInt16 TranslateChar16(sal_uInt16 src)
{
    return xlat(xlat_1_6, sizeof(xlat_1_6) / sizeof(xlat_1_5[0]), src);
}

void TranslateString12(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
    sal_uInt32 i;
    sal_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(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
    sal_uInt32 i;
    sal_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(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
    sal_uInt32 i;
    sal_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(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
    sal_uInt32 i;
    sal_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(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
    sal_uInt32 i;
    sal_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]);
        }
    }
}