function trimWhitespaceTokens(tokens, mask) {
		mask = mask || (WHITESPACE_REMOVE_FROM_START | WHITESPACE_REMOVE_FROM_END);
		var whitespace = ['white', 'line'];
		
		if ((mask & WHITESPACE_REMOVE_FROM_END) == WHITESPACE_REMOVE_FROM_END)
			while (tokens.length && _.include(whitespace, _.last(tokens).type)) {
				tokens.pop();
	 		}
		
		if ((mask & WHITESPACE_REMOVE_FROM_START) == WHITESPACE_REMOVE_FROM_START)
			while (tokens.length && _.include(whitespace, tokens[0].type)) {
				tokens.shift();
			}
		
		return tokens;
	}
function trimWhitespaceTokens(tokens, mask) {
		mask = mask || (WHITESPACE_REMOVE_FROM_START | WHITESPACE_REMOVE_FROM_END);
		var whitespace = ['white', 'line'];
		
		if ((mask & WHITESPACE_REMOVE_FROM_END) == WHITESPACE_REMOVE_FROM_END)
			while (tokens.length && _.include(whitespace, _.last(tokens).type)) {
				tokens.pop();
	 		}
		
		if ((mask & WHITESPACE_REMOVE_FROM_START) == WHITESPACE_REMOVE_FROM_START)
			while (tokens.length && _.include(whitespace, tokens[0].type)) {
				tokens.shift();
			}
		
		return tokens;
	}
function trimWhitespaceTokens ( tokens , mask ) { mask = mask || ( WHITESPACE_REMOVE_FROM_START | WHITESPACE_REMOVE_FROM_END ) ; var whitespace = [ 'white' , 'line' ] ; if ( ( mask & WHITESPACE_REMOVE_FROM_END ) == WHITESPACE_REMOVE_FROM_END ) while ( tokens . length && _ . include ( whitespace , _ . last ( tokens ) . type ) ) { tokens . pop ( ) ; } if ( ( mask & WHITESPACE_REMOVE_FROM_START ) == WHITESPACE_REMOVE_FROM_START ) while ( tokens . length && _ . include ( whitespace , tokens [ 0 ] . type ) ) { tokens . shift ( ) ; } return tokens ; }
Removes whitespace tokens from the array ends
@param {Array} tokens
@param {Number} mask Mask indicating from which end whitespace should be
removed
@returns {Array}
Removes whitespace tokens from the array ends