/*
 * Copyright (C)2005-2019 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package haxe;

import php.Global;

@:coreApi
@:deprecated('haxe.Utf8 is deprecated. Use UnicodeString instead.')
class Utf8 {
	var __b:String;

	public function new(?size:Int):Void {
		__b = '';
	}

	public function addChar(c:Int):Void {
		__b += uchr(c);
	}

	public function toString():String {
		return __b;
	}

	public static function encode(s:String):String {
		return Global.utf8_encode(s);
	}

	public static function decode(s:String):String {
		return Global.utf8_decode(s);
	}

	public static function iter(s:String, chars:Int->Void):Void {
		var len = length(s);
		for (i in 0...len) {
			chars(charCodeAt(s, i));
		}
	}

	public static function charCodeAt(s:String, index:Int):Int {
		return uord(sub(s, index, 1));
	}

	static function uchr(i:Int):String {
		return Global.mb_convert_encoding(Global.pack('N', i), 'UTF-8', 'UCS-4BE');
	}

	static function uord(s:String):Int {
		var c = Global.unpack('N', Global.mb_convert_encoding(s, 'UCS-4BE', 'UTF-8'));
		return c[1];
	}

	public static function validate(s:String):Bool {
		return Global.mb_check_encoding(s, enc);
	}

	public static function length(s:String):Int {
		return Global.mb_strlen(s, enc);
	}

	public static function compare(a:String, b:String):Int {
		return Global.strcmp(a, b);
	}

	public static function sub(s:String, pos:Int, len:Int):String {
		return Global.mb_substr(s, pos, len, enc);
	}

	private static inline var enc = "UTF-8";
}