<?php

//$source = '/usr/share/dict/french';
$source = __DIR__ . '/french.dict';
$dest = __DIR__ . '/lib.passphrase.french.php';

$words = array();

$file = file($source);
shuffle($file);

foreach ($file as $line)
{
    $line = trim($line);

    if (!trim($line) || $line[0] == '#')
        continue;

    $words[] = $line;

    if (count($words) >= 4096)
        break;
}

$words_out = var_export($words, true);
$words_out = preg_replace('!\s+\d+\s+=>\s+!', '', $words_out);
$words_out = preg_replace('!,\s+!', '', $words_out);

$out = '<?php

class Passphrase
{
    const DEFAULT_CHARACTERS = \'\pL\\\'-\';
    const DEFAULT_WORDS_NUMBER = 4;

    static private $words = null;

    static public function generate($nb_words = null, $characters = null)
    {
        if (is_null($nb_words))
        {
            $nb_words = self::DEFAULT_WORDS_NUMBER;
        }

        if (is_null($characters))
        {
            $characters = self::DEFAULT_CHARACTERS;
        }

        self::getDictionary();

        $words = array();
        $max = count(self::$words) - 1;

        while (count($words) < $nb_words)
        {
            $random = self::$words[mt_rand(0, $max)];

            if (preg_match(\'!^[\'.$characters.\']+$!u\', $random))
            {
                $words[] = $random;
            }
        }

        return implode(\' \', $words);
    }

    static public function getDictionary()
    {
        if (is_null(self::$words))
        {
            self::$words = '.$words_out.';
        }

        return self::$words;
    }

}

?>';

file_put_contents($dest, $out);

?>