# only able to extract from URL if URL is user page
if [[ $url == *"vimeo.com/user"* ]]
then
	# get username (cut off https://vimeo.com/user from front)
	username=${url##*vimeo.com/user}

	# cut off any extra stuff from end
	username=${username%%/*}

	if [[ -n $username ]]
	then
		# prepend vimeo URL and append /rss to form feed
		rss="https://vimeo.com/user${username}/videos/rss"
		url_ext=$rss
	fi
fi