Adds autoembedding of gist urls in WordPress

embed-gist.php

<?php

/**
 * Usage:
 * Paste a gist link into a blog post or page and it will be embedded eg:
 * https://gist.github.com/2926827
 *
 * If a gist has multiple files you can select one using a url in the following format:
 * https://gist.github.com/2926827?file=embed-gist.php
 */
wp_embed_register_handler( 'gist', '/https?:\/\/gist\.github\.com\/([a-z0-9]+)(\?file=.*)?/i', 'wp_embed_handler_gist' );

function wp_embed_handler_gist( $matches, $attr, $url, $rawattr ) {

	$embed = sprintf(
			'<script src="https://gist.github.com/%1$s.js%2$s"></script>',
			esc_attr($matches[1]),
			esc_attr($matches[2])
			);

	return apply_filters( 'embed_gist', $embed, $matches, $attr, $url, $rawattr );
}

?>

Whats the benefit of adding this code to your functions file? You can still embed gists in WordPress without it?

Thanks for this gist !
I updated it so that it takes usernames in URLs into account. See https://gist.github.com/diije/5805069 ;)

Really helped me too!
Changed diije's Version a bit, so it works with and without usernames: https://gist.github.com/tivus/7201507
So
https://gist.github.com/sanchothefat/2926827
and also
https://gist.github.com/2926827
will work.

What about filling out a trac ticket adding the newest code so we can have it added directly into WordPress?