if [[ $url == *"youtube.com/channel/"* ]]
then
	channel_id=${url#*youtube.com/channel/}
	channel_id=${channel_id%%/*}
	channel_id=${channel_id%%\?*}
	channel_id=${channel_id%%\&*}
	rss="https://www.youtube.com/feeds/videos.xml?channel_id=$channel_id"
	url_ext=$rss
elif [[ $url == *"youtube.com/user/"* ]]
then
	username=${url#*youtube.com/user/}
	username=${username%%/*}
	username=${username%%\?*}
	username=${username%%\&*}
	rss="https://www.youtube.com/feeds/videos.xml?user=$username"
	url_ext=$rss
elif [[ $url == *"youtube.com/playlist/?list="* || $url == *"youtube.com/"*"&list="* ]]
then
	list=${url#*list=}
	list=${list%%&*}
	rss="https://www.youtube.com/feeds/videos.xml?playlist_id=$list"
	url_ext=$rss
fi