--[=[
Module to implement the logic for [[Template:Plain heading]]
]=]

local getArgs = require('Module:Arguments').getArgs

local p = {} --p stands for package

--[=[
Primary entry point
]=]
function p.heading(frame)
	
	local args = getArgs(frame)
	local level = args['l'] or args['level'] or 2
	
	-- explicit ID or fall back to the first line
	local id = args['id'] or args[1]
	
	-- top level <hX> tag
	local tag = mw.html.create('h' .. level)
		:addClass('wst-heading')
		:addClass(args['class'])
		:attr('id', id)
		
	local line = 1
	-- add a span for every given positional parameter
	while true do
		if not args[line] then
			break
		end
		
		local line_span = tag:tag( 'span' )
			:wikitext(args[line])
			:addClass('wst-heading-line')
		
		line = line + 1
	end
		
	return tag
end

return p