<?php
namespace PhpParser;
require __DIR__ . '/../vendor/autoload.php';
function canonicalize($str) {
// trim from both sides
$str = trim($str);
// normalize EOL to n
$str = str_replace(array("rn", "r"), "n", $str);
// trim right side of all lines
return implode("n", array_map('rtrim', explode("n", $str)));
}