stack.cfc

<cfcomponent hint="A stack class that makes working with arrays as stacks clean and simple">
<cfscript>

	//private data
	variables.data = arrayNew(1);
		
	function init(){
		if (!structIsEmpty(arguments)){
			if (isArray(arguments[1])){//handle array source data
				variables.data = arguments[1];
			}else if (isSimpleValue(arguments[1])){//handle string source data
				variables.data = listToArray(arguments[1]);
			}
		}
		return( this );
	}
	
	function push(newVal){
		arrayAppend(variables.data, arguments.newVal);
	}
	
	function pop(){
		var rtn = '';
		if (isEmpty())
			return '';
		rtn = variables.data[arrayLen(variables.data)];
		arrayDeleteAt(variables.data, arrayLen(variables.data));
		return( rtn );
	}
	
	function top(){
		if (!isEmpty())
			return( variables.data[arrayLen(variables.data)] );
		else
			return '';
	}
	
	function isEmpty(){
		return( arrayLen(variables.data) == 0 );
	}

</cfscript>
</cfcomponent>