# check for explicit feed link
page_ext=`echo $content | grep -Po "(?<=<link href=').*?(?=' rel='alternate' type='application/rss\+xml'>)" | head -1`
page_ext=${page_ext##*href=\'}

# if explicit feed link not found get user URL and add .rss
if [[ "$page_ext" == "" ]]
then
	determine_protocol
	get_domain
	username="${url##*//}"
	username="${username#*/}"
	
	if [[ "$username" == @* ]]
	then
		username="${username%%/*}"
	elif [[ "$username" == users/* ]]
	then
		username="${username#*/}"
		username="users/${username%%/*}"
	fi
	
	if [[ -n "$username" ]]
	then
		page_ext="${protocol}${domain}/${username}.rss"
	fi
fi