how to get string unicode range

You can use "charCodeAt" to get numeric Unicode character code and covert it to 16 hex.

	/*
	* @mxmlc -debug -o=UnicodeRange.swf
	*/
	package
	{
	import flash.display.Sprite;
	/**
	* description：get unicode range
	* use charCodeAt to get numeric Unicode character code
	* and covert it to 16 hex
	*/
	public class UnicodeRange extends Sprite
	{
	public function UnicodeRange()
	{
	getUnicodeRange('123abc我是測試許功蓋怪字');
	}
	private function getUnicodeRange(__input:String):void
	{
	var str:String = __input;
	var i:uint, n:uint = str.length;
	var arr:Array = [];
	for (i = 0; i < n; i++)
	{
	var r:Number = str.charCodeAt(i);
	arr[i] = "U+" + convert2Hex(r);
	}
	arr.sort();
	//output: unicodeRange = 'U+0031, U+0032, U+0033, U+0061, U+0062, U+0063, U+529f, U+5b57, U+602a, U+6211, U+662f, U+6e2c, U+84cb, U+8a31, U+8a66'
	trace("unicodeRange = '" + arr.join(", ") + "'");
	}
	private function convert2Hex(__r:Number):String
	{
	var t:String = __r.toString(16);
	var j:uint = t.length;
	if (j < 4) {
	t = ("0000" + t).substr(-4,4);
	}
	return t;
	}
	}
	}

view raw UnicodeRange.as hosted with ❤ by GitHub