/**
* Parse a TimedText XML and return an array of captions.
*
* The entries in the array look like:
* []['begin']
* []['end']
* []['text']
*
**/
package com.jeroenwijering.parsers {


import com.jeroenwijering.utils.Strings;


public class TTParser {


	/** The supported paragraph elements. **/
	private static var ELEMENTS:Object = {
		'begin':undefined,
		'dur':undefined,
		'end':undefined,
		'text':undefined
	};


	/** Parse the cationing array. **/
	public static function parseCaptions(dat:XML):Array {
		var arr = new Array();
		var div = dat.children()[1].children()[0];
		for each (var i in div.children()) {
			if(i.localName() == 'p') {
				arr.push(TTParser.parseCaption(i));
			}
		}
		return arr;
	};


	/** Parse a single captions entry. **/
	private static function parseCaption(dat:XML):Object {
		var obj = {
			begin:Strings.seconds(dat.@begin),
			dur:Strings.seconds(dat.@dur),
			end:Strings.seconds(dat.@end),
			text:dat.children().toString()
		};
		if(obj['dur']) {
			obj['end'] = obj['begin'] + obj['dur'];
			delete obj['dur'];
		}
		return obj;
	};


}


}