local p = {}

p.reign = function( frame )
	local start = frame.args.start or "?"
	local ending = frame.args.ending or ""
	local sec_start = frame.args.sec_start
	local sec_ending = frame.args.sec_ending 
	local label = frame.args.label 
	local single = frame.args.single 
	local show = frame.args.show 
	local cap = frame.args.cap 
	local pre_date = frame.args.pre_date
	local post_date = frame.args.post_date
	local mid_date = frame.args.mid_date
	local era = frame.args.era 
	local abbr = "<abbr title='reign'>r.</abbr>"
	local ndash = "&ndash;"
	local nbsp = "&nbsp;"
	if start == "" and not single then start = "?" end
	if show == "none" then 
		abbr = "r."
		end
	if show == "link" then
		abbr = "[[Reign|r.]]"
		end
	if show == "word" then
		abbr = "reigned"
		end
	if show == "colon" then
		abbr = "reign:"
		end
	if show == "lword" then
		abbr = "[[Reign|reigned]]"
		end
	if show == "lcolon" then
		abbr = "[[Reign|reign:]]"
		end
	if show == "blank" then
		abbr = ""
		end
	if cap ~= null then
		if show == "none" then
			abbr = "R."
			end
		if show == "link" then
			abbr = "[[Reign|R.]]"
			end
		if show  == "word" then
			abbr = "Reigned"
			end
		if show == "colon" then
			abbr = "Reign:"
			end
		if show == "lword" then
			abbr = "[[Reign|Reigned]]"
			end
		if show == "lcolon" then
			abbr = "[[Reign|Reign:]]"
			end
		end
	if single then 
		msg = single
		end
	if not single and not pre_date then 
		 msg = start.. ndash ..ending
		end
	if string.match(start, ' ') ~= nil or string.match(ending, ' ') ~= nil then
		msg = start.. nbsp.. ndash.. nbsp.. ending
		end
	if mid_date and sec_start  and sec_ending  and start  and ending  and string.match(sec_start, ' ') ~= nil and string.match(sec_ending, ' ') ~= nil then
		msg = msg.. ", " ..mid_date.. ", " ..sec_start.. ndash ..sec_ending
		end
	if sec_start and sec_ending and not mid_date and string.match(sec_start, ' ') == nil and string.match(sec_ending, ' ') == nil  then
		msg = msg.. " and " ..sec_start.. ndash ..sec_ending
		end
	if sec_start  and sec_ending  and not mid_date and (string.match(sec_start, ' ') ~= nil or string.match(sec_ending, ' ') ~= nil) then
		msg = msg.. " and " ..sec_start.. nbsp.. ndash.. nbsp.. sec_ending
		end
	if sec_start and sec_ending and mid_date and (string.match(sec_start, ' ') ~= nil or string.match(sec_ending, ' ') ~= nil) then
		msg = msg.. ", " ..mid_date.. ", " ..sec_start.. nbsp.. ndash.. nbsp.. sec_ending
		end
	if pre_date and not post_date then
		msg = pre_date.. ", " ..msg
		end
	if post_dat and not pre_date then
		msg = msg.. ", " ..post_date
		end
	if post_date and pre_date and (start == "?" or start == "") and ending == "" then
		msg = pre_date.. ", " ..post_date
		end
	if era then
		msg = msg.. " " ..era
		end
	if not label then
		msg = abbr.. " " ..msg
		else
			msg = label.. ": " ..msg
		end
	return msg
	end	

return p