Escaping key value interpolation #1

spec/KiwiSpec.js

@@ -72,4 +72,18 @@ describe('Kiwi.compose - %{}', function() {
 		var output = "The quick brown  jumps over the lazy dog.";
 		expect(Kiwi.compose(input, dic)).toEqual(output);
 	});
+
+	it('should escape key value interpolation if ` is given before %',function() {
+		var input = "The quick brown `%{f} jumps over the lazy dog.";
+		var dic = {"d": "dog"};
+		var output = "The quick brown %{f} jumps over the lazy dog.";
+		expect(Kiwi.compose(input, dic)).toEqual(output);
+	});
+
+	it('should escape key value interpolation for the first case but not for the 2nd.',function() {
+		var input = "The quick brown `%{f} %{f} jumps over the lazy dog.";
+		var dic = {"f": "fox"};
+		var output = "The quick brown %{f} fox jumps over the lazy dog.";
+		expect(Kiwi.compose(input, dic)).toEqual(output);
+	});
 });

src/Kiwi.js

@@ -1,9 +1,9 @@
 var Kiwi = (function ($) {
 	var interpolate_general = function(text, array){
 		var stringToReturn = ""
-		 	,length = text.length
+			,length = text.length
-		 	,index = 0
+			,index = 0
-		 	,array_length = array.length;
+			,array_length = array.length;
 
 		for(var i = 0; i < length; i++){
 			var currentChar = text[i];
@@ -48,15 +48,18 @@ var Kiwi = (function ($) {
 
 	var interpolate_key_value = function(text, json){
 		var stringToReturn = ""
-		 	,length = text.length
+			,length = text.length
-		 	,index = 0;
+			,index = 0;
 
 		for(var i = 0; i < length; i++){
 			var currentChar = text[i];
 			var nextChar = null;
 			if(i + 1 < length) nextChar = text[i+1];
 
-			if(currentChar === '%' && nextChar === '{'){
+			if (currentChar === '`' && nextChar === '%') {
+				stringToReturn += '%';
+				i += 1;
+			}else if(currentChar === '%' && nextChar === '{'){
 				var result = get_key_length(text, i);
 				var key = result[0];
 				var key_length = result[1];