HW_Parser.php

check() looks for input the module can handle. In this case the module simply watches for the string "HW".

parse() demonstrates a couple options when the correct input is detected. If a transaction is in progress, it displays an error message. Otherwise, it sends the browser to a different display script.

N.B. the HelloWorld display module is just an example; that file does not exist in the gui-modules directory.

<?php

class HW_Parser extends Parser {

        function check($str){

                if (strtoupper($str) == "HW")
                        return True;

                return False;
                
        }

        function parse($str){
                global $CORE_LOCAL;

                $return_value = $this->default_json();

                if ($CORE_LOCAL->get("LastID") != "0"){
                        $return_value['output'] = DisplayLib::boxMsg("transaction in progress");
                }
                else {
                        $return_value['main_frame'] = MiscLib::base_url().'gui-modules/HelloWorld.php';
                }

                return $return_value;
        }

}

?>