#!/usr/bin/env php
<? 
$dict="0123456789abcdefghijklmnopqrstuvwxyz ,.:/<>=_~-\@!#$%^&*()+? ";
$chunk=strlen(strlen($dict));

function numerize($s)
{
	global $dict,$chunk;
	$out="";
	for($i=0;$i<strlen($s);$i++)
		$out.=sprintf("%0" . $chunk . "s",strpos($dict,substr($s,$i,1)));
	return $out;
}
function denumerize($s)
{
	global $dict,$chunk;
	$out="";
	for($i=0;$i<strlen($s);$i+=$chunk)
		$out.= substr($dict, substr($s,$i,$chunk),1);
	return $out;
}

function usage()
{
	exec('clear');
	print "\nUsage:\n./numerize.php [option] [input]\n\n";	
	print "\tOptions:\n\t\t-d\tDenumerize\n\t\t-n\tNumerize\n\n";
	print "\tInput:\tInput is either the numerized output\n\t\tor the string to numerize\n\n";
}

if($argc > 2)
{
	switch($argv[1])
	{
		case '-d':
			print denumerize($argv[2]);
			break;
		case '-n':
			print numerize($argv[2]);
			break;
		default:
			usage();
	}
	print "\n";
}else{
	usage();
}

?>