<?php
include("erdft_parser.php");

$erdf = file_get_contents('test.erdft');	

//instantiate template parser: params are ($template_string, $sparql_var_regex, $sparql_optional_regex, $arc_config_path)
//
$eRdfT = new eRDFT($erdf, '/{(\$[a-zA-Z_]+)[^\}]*?}/', '/(\$[a-zA-Z_]+?)_optional/', './arc_config.php');	
$data = $eRdfT->get_results();
$vars = array_keys($data[0]);

//set Smarty variables
include('/usr/lib/php/Smarty/libs/Smarty.class.php');
$smarty = new Smarty;
foreach($vars as $var)
{
	//determine whether to give variable a value or an array
	if(strpos($var, '__') )//this is a variable naming convention - array keys being named $singular__key and arrays being named $plural
	{
		//get array name 
		$parts = explode('__', $var);
		$array_name = $parts[0].'s';
		$smarty->assign($array_name, $data);
		$new_form = '$'.$parts[0].'.'.$var;
		$erdf = str_replace( '$'.$var , $new_form , $erdf); //convert to $row.key
	}
	else 
	{
		$v = $data[0][$var];
		$smarty->assign($var, $v);
	}
}
$erdf = preg_replace($eRdfT->REG_EXES['SPARQL_OPTIONAL'],'$1',$erdf);

$smarty->template_dir = './templates';
//now process
$handle = fopen("templates/temp_test.tpl", "w");
if (fwrite($handle, $erdf) === FALSE) {
      echo "Cannot write to file ($filename)";
      exit;
  }
fclose($handle);

$smarty->display("temp_test.tpl");
?>