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path: root/src/xutf8/case.c
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// "$Id: $"
//
// Author: Jean-Marc Lienher ( http://oksid.ch )
// Copyright 2000-2003 by O'ksi'D.
//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
// Please report all bugs and problems on the following page:
//
//     http://www.fltk.org/str.php

/*
 * This file is required on all platforms for utf8 support
 */

#include "headers/case.h"
#include <stdlib.h>


int 
XUtf8Tolower(
	int ucs)
{
	int ret;

	if (ucs <= 0x02B6) {
		if (ucs >= 0x0041) {
			ret = ucs_table_0041[ucs - 0x0041];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0x0556) {
		if (ucs >= 0x0386) {
			ret = ucs_table_0386[ucs - 0x0386];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0x10C5) {
		if (ucs >= 0x10A0) {
			ret = ucs_table_10A0[ucs - 0x10A0];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0x1FFC) {
		if (ucs >= 0x1E00) {
			ret = ucs_table_1E00[ucs - 0x1E00];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0x2133) {
		if (ucs >= 0x2102) {
			ret = ucs_table_2102[ucs - 0x2102];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0x24CF) {
		if (ucs >= 0x24B6) {
			ret = ucs_table_24B6[ucs - 0x24B6];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0x33CE) {
		if (ucs >= 0x33CE) {
			ret = ucs_table_33CE[ucs - 0x33CE];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	if (ucs <= 0xFF3A) {
		if (ucs >= 0xFF21) {
			ret = ucs_table_FF21[ucs - 0xFF21];
			if (ret > 0) return ret;
		}
		return ucs;
	}

	return ucs;
}

int 
XUtf8Toupper(
	int ucs)
{
	int i;
	static unsigned short *table = NULL;

	if (!table) {
		table = (unsigned short*) malloc(
			sizeof(unsigned short) * 0x10000);
		for (i = 0; i < 0x10000; i++) {
			table[i] = (unsigned short) i;
		}	
		for (i = 0; i < 0x10000; i++) {
			int l;
			l = XUtf8Tolower(i);			
			if (l != i) table[l] = (unsigned short) i;
		}	

	}
	if (ucs >= 0x10000 || ucs < 0) return ucs;
	return table[ucs];
}