HScript live coding. Using in https://github.com/AxGord/LiveTeacher

gistfile1.txt

package ;

import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.Lib;
import flash.text.TextField;
import flash.text.TextFieldType;
import flash.events.Event;

/**
 * ...
 * @author AxGord
 */

class Main
{
  
	static function main()
	{
		var stage = Lib.current.stage;
		var input:TextField = new TextField();
		input.width = stage.stageWidth / 2;
		input.height = stage.stageHeight;
		input.x = input.y = 0;
		var output:TextField = new TextField();
		output.width = stage.stageWidth / 2;
		output.height = stage.stageHeight;
		output.x = stage.stageWidth / 2;
		output.y = 0;
	
		Lib.current.addChild(input);
		Lib.current.addChild(output);
		
		input.border = true;
		input.borderColor = 0x000000;
		input.background = true;
		input.backgroundColor = 0x999999;
		input.type = TextFieldType.INPUT;
		input.multiline = true;
		
		var parser = new hscript.Parser();

		input.addEventListener(Event.CHANGE, function(_) {
			try {
			var program = parser.parseString(input.text);
			var interp = new hscript.Interp();
			
			output.text = interp.execute(program);
			} catch (e:Dynamic) { };
		});
	}
	
}