Skips to <code>close</code> character which is pair to <code>open</code>
character, considering possible pair nesting. This function is used
to consume pair of characters, like opening and closing braces
@param {String} open
@param {String} close
@returns {Boolean} Returns <code>true</code> if pair was successfully
consumed
function(open, close) {
			var braceCount = 0, ch;
			var pos = this.pos, len = this.string.length;
			while (pos < len) {
				ch = this.string.charAt(pos++);
				if (ch == open) {
					braceCount++;
				} else if (ch == close) {
					braceCount--;
					if (braceCount < 1) {
						this.pos = pos;
						return true;
					}
				}
			}
			
			return false;
		}