Translations/update.php

<?php
function extract_strings($cont)
{
	preg_match_all("/([A-Za-z_ ]+): (.*)/", $cont, $matches, PREG_SET_ORDER, 0);
	$strings = [];
	foreach ($matches as $match)
	{
		$strings[$match[1]] = $match[2];
	}
	return $strings;
}

$source = file_get_contents("bootstrapper/en.cat.txt");
$source_strings = extract_strings($source);
$source_lines = explode("\n", $source);

foreach (scandir("bootstrapper") as $file)
{
	if (is_file("bootstrapper/$file") && $file != "en.cat.txt")
	{
		$cont = file_get_contents("bootstrapper/$file");
		$target_strings = extract_strings($cont);
		$fh = fopen("bootstrapper/$file", "wb");
		foreach ($source_lines as $line)
		{
			if ($strings = extract_strings($line))
			{
				foreach ($strings as $key => $value)
				{
					if (array_key_exists($key, $target_strings))
					{
						fwrite($fh, "$key: $target_strings[$key]\n");
					}
					else
					{
						fwrite($fh, "$key: [UNTRANSLATED] $value\n");
					}
				}
			}
			else
			{
				fwrite($fh, $line."\n");
			}
		}
	}
}