Mini Shell

<?php

/**
 * Generate fixed-width dictionary file
 *
 * @author  Jose Rodriguez <jose.rodriguez@exec.cl>
 * @license GPLv3
 * @link    http://code.google.com/p/cool-php-captcha
 * @package captcha
 *
 */


/** Word lengths */
$minLength = 5;
$maxLength = 8;





if ($argc < 3) {
    die("Usage: $argv[0] infile outfile\n");
}





if (!file_exists($argv[1])) {
    die("File '$argv[1]' doesn't exists\n");
}



$fp  = fopen($argv[1], "r");
$fp2 = fopen($argv[2], "w");
fwrite($fp2, "<?php /*\n");

while ($lin = fgets($fp)) {
    $lin    = trim(strtolower($lin));
    $strlen = strlen($lin);
    if ($strlen>=$minLength && $strlen<=$maxLength && preg_match("/^[a-z]+$/", $lin)) {
        $lin = str_pad($lin, $maxLength);
        fwrite($fp2, "$lin\n");
    }
}
fwrite($fp2, "*/    ?>\n");

fclose($fp);
fclose($fp2);



?>