Wordpress: gist plugin

wp-gist-plugin.php

wp_embed_register_handler( 'gist', '/https:\/\/gist\.github\.com\/(\d+)(\?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 );
}