Small fixes and improvements

lib/assets/range.js

@@ -68,7 +68,7 @@ define(function(require, exports, module) {
 		},
 
 		/**
-		 * Shifts indexes position with passed <code>delat</code>
+		 * Shifts indexes position with passed <code>delta</code>
 		 * @param {Number} delta
 		 * @returns {Range} range itself
 		 */
@@ -221,9 +221,12 @@ define(function(require, exports, module) {
 		return new Range(start, len);
 	};
 
-	module = module || {};
 	module.exports.create = module.exports;
 
+	module.exports.isRange = function(val) {
+		return val instanceof Range;
+	};
+
 	/**
 	 * <code>Range</code> object factory, the same as <code>this.create()</code>
 	 * but last argument represents end of range, not length

lib/editTree/css.js

@@ -214,24 +214,53 @@ define(function(require, exports, module) {
 	 * @param {Number} offset Offset of properties subset from original source
 	 */
 	function consumeProperties(node, source, offset) {
+		var list = extractPropertiesFromSource(source, offset);
+
+		_.each(list, function(property) {
+			node._children.push(new CSSEditElement(node,
+				editTree.createToken(property.name.start, property.nameText),
+				editTree.createToken(property.value.start, property.valueText),
+				editTree.createToken(property.end.start, property.endText)
+				));
+		});
+	}
+
+	/**
+	 * Parses given CSS source and returns list of ranges of located CSS properties.
+	 * Normally, CSS source must contain properties only, it must be,
+	 * for example, a content of CSS selector or text between nested
+	 * CSS sections
+	 * @param  {String} source CSS source
+	 * @param {Number} offset Offset of properties subset from original source.
+	 * Used to provide proper ranges of locates items
+	 */
+	function extractPropertiesFromSource(source, offset) {
 		offset = offset || 0;
 		source = source.replace(reSpaceEnd, '');
+		var out = [];
 
 		if (!source) {
-			return;
+			return out;
 		}
 
 		var tokens = cssParser.parse(source);
 		var it = tokenIterator.create(tokens);
 		var property;
 
 		while ((property = consumeSingleProperty(it, source))) {
-			node._children.push(new CSSEditElement(node,
-				editTree.createToken(property.name.start + offset, property.name.substring(source)),
-				editTree.createToken(property.value.start + offset, property.value.substring(source)),
-				editTree.createToken(property.end.start + offset, property.end.substring(source))
-				));
+			out.push({
+				nameText: property.name.substring(source),
+				name: property.name.shift(offset),
+
+				valueText: property.value.substring(source),
+				value: property.value.shift(offset),
+
+				endText: property.end.substring(source),
+				end: property.end.shift(offset)
+			});
 		}
+
+		return out;
 	}
 
 	/**
@@ -575,6 +604,8 @@ define(function(require, exports, module) {
 		 * @param {String} str
 		 * @returns {Array}
 		 */
-		findParts: findParts
+		findParts: findParts,
+
+		extractPropertiesFromSource: extractPropertiesFromSource
 	};
 });