+if (isset($_GET['src_url'])) {
+ $src_url = $_GET['src_url'];
+} else if (isset($argv[1])) {
+ $src_url = $argv[1];
+} else {
+ die(usage($argv));
+}
+
+$url = parse_url($src_url);
+if (FALSE === $url || empty($url["host"]))
+ die("Invalid url\n");
+
+$stylesheets = array(
+ "twitter.com" => "twitter_user_timeline2rss.xsl",
+);
+
+if (FALSE === array_key_exists($url["host"], $stylesheets))
+ die("Unsupported host\n");
+
+$stylesheet = $stylesheets[$url["host"]];