/*********************************************************************************************************************************/
//Content of malayalam.js alone.Start
/*********************************************************************************************************************************/

var consonants = {"ക":"ക","ഖ":"ഖ","ഗ":"ഗ","ഘ":"ഘ","ങ":"ങ","ച":"ച","ഛ":"ഛ","ജ":"ജ","ഝ":"ഝ","ഞ":"ഞ","ട":"ട","ഠ":"ഠ","ഡ":"ഡ","ഢ":"ഢ","ണ":"ണ","ത":"ത","ഥ":"ഥ","ദ":"ദ","ധ":"ധ","ന":"ന","പ":"പ","ഫ":"ഫ","ബ":"ബ","ഭ":"ഭ","മ":"മ","യ":"യ","ര":"ര","ല":"ല","വ":"വ","ശ":"ശ","ഷ":"ഷ","സ":"സ","ഹ":"ഹ","ള":"ള","ഴ":"ഴ","റ":"റ","റ്റ":"റ്റ"};
var chillaksharam = {"ണ്‍":"ണ","ന്‍":"ന","ം":"മ","ര്‍":"ര","ല്‍":"ല","ള്‍":"ള","്\\u200D":""};

var vowels = '"്a":"","്e":"െ","്i":"ി","്o":"ൊ","്u":"ു","്A":"ാ","്E":"േ","്I":"ീ","്O":"ോ","്U":"ൂ","്Y":"ൈ","െe":"ീ","ൊo":"ൂ","ിi":"ീ","ിe":"ീ","ുu":"ൂ","ുo":"ൂ","്r":"്ര്",';
var roman = '"k":"ക്","ക്h":"ഖ്","g":"ഗ്","ഗ്h":"ഘ്","ന്‍g":"ങ്","c":"ക്\\u200D","ക്\\u200Dh":"ച്","ച്h":"ഛ്","j":"ജ്","ജ്h":"ഝ്","ന്‍j":"ഞ്","ന്‍h":"ഞ്","T":"ട്","ട്h":"ഠ്","D":"ഡ്","ഡ്h":"ഢ്","റ്റ്h":"ത്","ത്h":"ഥ്","d":"ദ്","ദ്h":"ധ്","p":"പ്","പ്h":"ഫ്","f":"ഫ്","b":"ബ്","ബ്h":"ഭ്","y":"യ്","v":"വ്","w":"വ്","z":"ശ്","S":"ശ്","സ്h":"ഷ്","s":"സ്","h":"ഹ്","ശ്h":"ഴ്","x":"ക്ഷ്","R":"റ്","t":"റ്റ്",';
var chill = '"N":"ണ്‍","n":"ന്‍","m":"ം","r":"ര്‍","l":"ല്‍","L":"ള്‍",';
//var chill = '"N":"\\u0D23\\u0D4D\\u200D","n":"\\u0D28\\u0D4D\\u200D","m":"ം","r":"\\u0D30\\u0D4D\\u200D","l":"\\u0D32\\u0D4D\\u200D","L":"\\u0D33\\u0D4D\\u200D",';
//when changed vannu had problem in mozilla
//one solution is replace every where.or find how IE there is no problem but mozilla has problm
var swaram = '"a":"അ","അa":"ആ","A":"ആ","e":"എ","E":"ഏ","എe":"ഈ","i":"ഇ","ഇi":"ഈ","ഇe":"ഈ","അi":"ഐ","I":"ഐ","o":"ഒ","ഒo":"ഊ","O":"ഓ","അu":"ഔ","ഒu":"ഔ","u":"ഉ","ഉu":"ഊ","U":"ഊ","H":"ഃ","റ്h":"ഋ","ര്‍^":"ഋ","ഋ^":"ൠ","ല്‍^":"ഌ","ഌ^":"ൡ",';
var numerals = '"1":"1","2":"2","3":"3","4":"4","5":"5","6":"6","7":"7","8":"8","9":"9","0":"0",';
var conjuncts = '"ന്‍t":"ന്റ്","ന്റ്h":"ന്ത്","ന്‍k":"ങ്ക്","ന്‍n":"ന്ന്","ണ്‍N":"ണ്ണ്","ള്‍L":"ള്ള്","ല്‍l":"ല്ല്","ംm":"മ്മ്","ന്‍m":"ന്മ്","ന്ന്g":"ങ്ങ്","ന്‍d":"ന്ദ്","ണ്‍m":"ണ്മ്","ല്‍p":"ല്പ്","ംp":"മ്പ്","റ്റ്t":"ട്ട്","ന്‍T":"ണ്ട്","ണ്‍T":"ണ്ട്","്ര്^":"ൃ","ന്‍c":"ന്‍\\u200D","ന്‍\\u200Dh":"ഞ്ച്","ണ്‍D":"ണ്ഡ്",';
var others = '"്L":"്ല്","~":"്\\u200C","്~":"്\\u200C","\\u200C~":"\\u200C","ം~":"മ്","ക്\\u200Dc":"ക്ക്\\u200D","ക്ക്\\u200Dh":"ച്ച്","q":"ക്യൂ",';
var caps = '"B":"ബ്ബ്","C":"ക്ക്\\u200D","F":"ഫ്","G":"ഗ്ഗ്","J":"ജ്ജ്","K":"ക്ക്","M":"മ്മ്","P":"പ്പ്","Q":"ക്യൂ","V":"വ്വ്","W":"വ്വ്","X":"ക്ഷ്","Y":"യ്യ്","Z":"ശ്ശ്",';
var ZWNJ = '"_":"\\u200C"';

var conversionHash = undefined;
var translitHash = undefined;
var maxcyrlength = 0;
var stateHash = new Array();

function getConversionHash() {
	if (conversionHash == undefined) {
		// TODO
		var opr = "{" + vowels + roman + chill + swaram + numerals + conjuncts + caps + others;
		for (var consonant in consonants) {
			opr += '"' + consonant + 'a":"' + consonant + 'ാ",';
			opr += '"' + consonant + 'e":"' + consonant + 'േ",';
			opr += '"' + consonant + 'i":"' + consonant + 'ൈ",';
			opr += '"' + consonant + 'o":"' + consonant + 'ോ",';
			opr += '"' + consonant + 'u":"' + consonant + 'ൗ",';
		}
		
		for (var chk in chillaksharam) {
			opr += '"' + chk + 'a":"' + chillaksharam[chk] + '",';
			opr += '"' + chk + 'e":"' + chillaksharam[chk] + 'െ",';
			opr += '"' + chk + 'i":"' + chillaksharam[chk] + 'ി",';
			opr += '"' + chk + 'o":"' + chillaksharam[chk] + 'ൊ",';
			opr += '"' + chk + 'u":"' + chillaksharam[chk] + 'ു",';
			opr += '"' + chk + 'A":"' + chillaksharam[chk] + 'ാ",';
			opr += '"' + chk + 'E":"' + chillaksharam[chk] + 'േ",';
			opr += '"' + chk + 'I":"' + chillaksharam[chk] + 'ീ",';
			opr += '"' + chk + 'O":"' + chillaksharam[chk] + 'ോ",';
			opr += '"' + chk + 'U":"' + chillaksharam[chk] + 'ൂ",';
			opr += '"' + chk + 'Y":"' + chillaksharam[chk] + 'ൈ",';
			opr += '"' + chk + 'r":"' + chillaksharam[chk] + '്ര്",';
			opr += '"' + chk + 'y":"' + chillaksharam[chk] + '്യ്",';
			opr += '"' + chk + 'v":"' + chillaksharam[chk] + '്വ്",';
			opr += '"' + chk + 'w":"' + chillaksharam[chk] + '്വ്",';
			opr += '"' + chk + '~":"' + chillaksharam[chk] + '്\\u200C",';
		}
		
		opr += ZWNJ + "}";
		// var tb = document.getElementById('txtBox');
		// tb.value = opr;
		conversionHash = eval("("+opr+")");
		maxcyrlength=6;
	}

	return conversionHash;
}

function to_cyrillic(src, output, chunks) {
	if (src == undefined || src == "" || src == null)
		return src;
	if (output == undefined)
		output = new String();

	var hash = getConversionHash();
	
	var location = 0;
	
	while (location < src.length) {
		var len = Math.min(maxcyrlength, src.length - location);
		var arr = undefined;
		var sub;
		while (len > 0) {
			sub = src.substr(location, len);
			arr = hash[sub];
			if (arr != undefined) 
				break;
			else 
				len--;
		}
		
		// need this for translit on the fly
		if (chunks != undefined)
			chunks[chunks.length] = sub;
			
		if (arr == undefined) {
			output += sub;
			location ++;
		}
		else {

			// case analysis
			var newChar = arr;
			
			if (sub.toLowerCase() == sub.toUpperCase() && arr.length > 1 && arr[1] && (newChar.toUpperCase() != newChar.toLowerCase())) {
			
				// need translit hash to determine if previous character (and possibly the one before it) 
				// were converted and are in upper case
				
				// set prevDud to true previous is not a translated character or simply a blank
				// set prevCap to true if previous was translated and was upper case

				var prevCh = output.length == 0 ? null : output.substr(output.length - 1, 1);
				var prevDud = !prevCh || !getTranslitString(prevCh);
				var prevCap = (!prevDud && prevCh == prevCh.toUpperCase());

				// sub is caseless but result isn't. case will depend on lookbehind and lookahead
				if (prevDud || !prevCap) {
					output += newChar.toLowerCase();
					prevCap = false;
				}
				else {
					var next = " ";
					if (location + len < src.length)
						next = src.substr(location + len, 1);

					if (next != next.toUpperCase() && next == next.toLowerCase() ) {
						//next is lowercase (and not caseless)
						output += newChar.toLowerCase();
					}
					else if (next == next.toUpperCase() && next != next.toLowerCase() ) {
						// next is uppercase (and not caseless)
						output += newChar.toUpperCase();
					}
					else {
						// next is caseless. output case determined by the case of output[length - 2]
						var pprevCh = output.length == 1 ? null : output.substr(output.length - 2, 1);
						var pprevDud = !pprevCh || !getTranslitString(pprevCh);
						if (!pprevDud && (pprevCh == pprevCh.toUpperCase())) {
							//pre-prev is in upper case. output is also uppercase
							output += newChar.toUpperCase();
						}
						else {
							output += newChar.toLowerCase();
						}
						
					}
				}
					
			}
			else if ((sub.toLowerCase() == sub.toUpperCase()) && (arr.length < 2 || !arr[1])) {
				
				// literal treatment of newChar
				output += newChar;

			}
			else if (sub != sub.toLowerCase()) {
			
				// sub not all-lowercase
				output += newChar.toUpperCase();
			}
			else {
					
					
					
				// sub is lowercase
				output += newChar.toLowerCase();
			}
			location += len;
		}
	}
	
	return output;
}


function convertIt(src,converter){
 var resultbuffer=""; 
	for(var i=0;i<src.length;i++){
	resultbuffer=converter(resultbuffer+src[i]);
	}
		return converter(resultbuffer);

}

function initTranslit() {
	if (translitHash == undefined) {
		translitHash = new Array();

		for (var i = 0; i < conversionHash.length; i++) {
			var ch = conversionHash[i][1];
			// if the translit string is not caseless, convert cyr string to upper case
			// otherwise maintain its case
			if (conversionHash[i][0].toUpperCase() != conversionHash[i][0].toLowerCase())
				ch = ch.toUpperCase();
				
			if (translitHash[ch] == undefined)
				translitHash[ch] = conversionHash[i][0];
		}
	}
}

//-- translit on-the-fly -- 

function replaceValue(node, value, stepback) {
	if (stepback == undefined)
		stepback = 0;
		
	if (isExplorer()) {
		var range = document.selection.createRange();
		range.moveStart("character", -stepback);
		range.text = value;
		range.collapse(false);
		range.select();
	}
	else {
		var scrollTop = node.scrollTop;
		var cursorLoc =  node.selectionStart;
		node.value = node.value.substring(0, node.selectionStart - stepback) + value + 
				node.value.substring(node.selectionEnd, node.value.length);
		node.scrollTop = scrollTop;
		node.selectionStart = cursorLoc + value.length - stepback;
		node.selectionEnd = cursorLoc + value.length - stepback;
	}
}

// compare positions
function positionIsEqual(other) {
	if (isExplorer())
		return this.position.isEqual(other.position);
	else
		return this.position == other.position;
  
}

function resetState() {
	this.position = new Position(this.node);
	this.transBuffer = "";
	this.cyrBuffer = "";
}


function transliterateKey(event) {
	
	if (event == undefined)
		event = window.event;
	
	var node = null;
	if (event.target) {
		node = event.target;
		}
	else if (event.srcElement) {
		node = event.srcElement;
		}
		
		
	// initialize state
	var state = stateHash[node];
	//if (state == null) {//modified below by luap.Initially type 'a'.delete it ,then type 'a'.In IE it comes outside so corrected.
	if (state == null || textBox.value=="") {
		state = new StateObject(node);
		stateHash[node] = state;
	}
	if ( (pressedKey(event) > 20) && !event.ctrlKey && !event.altKey && !event.metaKey) {

		var c = String.fromCharCode(pressedKey(event));

		// process input
		var result = process_translit(state, c);
		// finish up
		if (c != result.out || result.replace != 0) {
		  if (isExplorer())
			event.returnValue = false;
		  else
			event.preventDefault();
		  
		  replaceValue(node, result.out, result.replace);
		  
		  state.position = new Position(node);

		}
	}
	
}

function process_translit(state, c) {
	// reset state if position changed
	if (!state.position.isEqual(new Position(state.node)))
		state.reset();
		
	var result = new TranslitResult();
	
	// initial backbuffer. Add to it as characters are converted
	var backbuffer = getBackBuffer(state.node, state.cyrBuffer.length, 2);
	var chunks = new Array();
	
	state.transBuffer = state.transBuffer+ c

	var str = to_cyrillic(state.cyrBuffer+c, backbuffer, chunks);

	// remove backbuffer from output
	str = str.substr(backbuffer.length);
	result.out = str; 
	/* str is now left alone - it has the output matching contents of chunks and 
	   will be used to reinitialize backbuffers, along with chunks and state.transBuffer
	*/
	
	// get the difference between state.cyrBuffer and output
	for (var i = 0; i < Math.min(state.cyrBuffer.length, result.out.length); i++) {
		if (state.cyrBuffer.substr(i, 1) != result.out.substr(i, 1)) {
			result.replace = state.cyrBuffer.length - i;
			result.out = result.out.substr(i);
			break;
		}
	}
	if (result.replace == 0) {
			   if(result.out.length<state.cyrBuffer.length)
				result.replace=state.cyrBuffer.length- result.out.length;
		result.out = result.out.substr(Math.min(state.cyrBuffer.length, result.out.length));
				 
					   //    result.out+="\u0008"
						 
	}
	
	// update state: backbuffer, bufferArray
	if (chunks.length > 0 && chunks[chunks.length - 1] == result.out.substr(result.out.length - 1)) {
		// no convertion took place, reset state
		state.reset();
	}
	else {
		while (state.transBuffer.length > maxcyrlength) {
			state.transBuffer = state.transBuffer.substr(chunks[0].length);
			chunks.shift();
			str = str.substr(1);
		}
		state.cyrBuffer = str;
	}
	return result;
}

function getBackBuffer(node, offset, count) {
		
	if (isExplorer()) { //.tagName.toUpperCase() == "EDITOR") {
	
		var range = document.selection.createRange();
		range.moveStart("character", -offset);
		var result = range.text.substr(-count);
		if (!result)
			result = "";
			
		return result;

	} else {
		return node.value.substring(0, node.selectionStart - offset).substr(-count);
	}
}

// need this for bookmarklets
function getSelectedNode() {
  if (document.activeElement)
	return document.activeElement;
  else
	if (window.getSelection && window.getSelection() && window.getSelection().rangeCount > 0) {
		var range = window.getSelection().getRangeAt(0);
		if (range.startContainer && range.startContainer.childNodes && range.startContainer.childNodes.length > range.startOffset)
			return range.startContainer.childNodes[range.startOffset]
	}
  return null;
}
function getSelectedText() {
	if (isExplorer()) {
		return document.selection.createRange().text;
	}
	else {
		var node = getSelectedNode();
		if (node && node.value && node.selectionStart != undefined && node.selectionEnd != undefined)
			return node.value.substring(node.selectionStart, node.selectionEnd);
	}
	return "";
}
/*********************************************************************************************************************************/
//Content of malayalam.js alone.End
/*********************************************************************************************************************************/
/*********************************************************************************************************************************/
//Content of classes.js alone.Start
/*********************************************************************************************************************************/
function Position(node) {
  if (node.selectionStart != undefined)
	this.position = node.selectionStart;
  else if (document.selection && document.selection.createRange())
	this.position = document.selection.createRange();
	
  this.isEqual = positionIsEqual;
}

function StateObject(node) {
	this.node = node;
	this.reset = resetState;
	this.cyrBuffer = "";
	this.transBuffer = "";
	this.position = new Position(node);
}

function TranslitResult() {
	this.out = "";
	this.replace = 0;
}

/*********************************************************************************************************************************/
//Content of classes.js alone.End
/*********************************************************************************************************************************/
/*********************************************************************************************************************************/
//Content of utils.js alone.Start
/*********************************************************************************************************************************/
function pressedKey(event) {
  if (isExplorer())
	return event.keyCode;
  else
	return event.which;
}

function isExplorer() {
  return (document.selection != undefined && document.selection.createRange().isEqual != undefined);
}

/*********************************************************************************************************************************/
//Content of utils.js alone.End
/*********************************************************************************************************************************/

/*********************************************************************************************************************************/
//Content of UniEdit.html alone.End
/*********************************************************************************************************************************/
var defaultLang = 1;
var sellang = 1;  
var textBox;  
var e; 
var transupport = true;
function processKeys(event,txtId) {
	e = event || window.event;	e.keyValue = e.keyCode || e.which;
	var txtId = (txtId == null) ? "ta_ue" : txtId;// VIN added
	textBox= document.getElementById(txtId); //OLD Vin Commented textBox= document.getElementById('ta_ue');
	if (sellang == 1) {
		transliterateKey(event); // call transliteration function
	}
}
/*********************************************************************************************************************************/
//Content of UniEdit.html alone.End
/*********************************************************************************************************************************/