Module:Block value

Documentation for this module may be created at Module:Block value/doc

local p = {}
p.value = function( f )
	local args = f
	if f == mw.getCurrentFrame() then 
		args = require( 'Module:ProcessArgs' ).merge( true )
	end
	local block = mw.text.trim( args[1] or '' ):lower()
	local type = args.type

	-- Most of these transforms are unnecessary, but are kept for compatibility with original template

	-- remove any of '()- or whitespace
	block = block:gsub( "['%(%)%-%s]+", '' )
	
	if type == "hardness" then
		-- Strip trailing "s" on everything but these
		local keepS = {
			glass = true,
			steps = true, stairs = true,
			bars = true,
			cactus = true,
			leaves = true,
			grass = true,
			potatoes = true,
			planks = true,
			seagrass = true,
			debris = true
		}
		if not keepS[block:match( '%w+$' )] then
			block = block:gsub( 's$', '' )
		end
		
		-- Other transforms
		block = block
			:gsub( 'wooden', 'wood' )
			:gsub( 'mossy', 'moss' )
			:gsub( 'steps', 'stairs' )
	end
	
	local value = mw.loadData( 'Module:' .. type .. ' values' )[block]
	local category = ''
	if not value then
		value = '[[Template:' .. type .. ' values#Missing value|?]]'
		local title = mw.title.getCurrentTitle()
		if not args.nocat and title.namespace == 0 and not title.isSubpage then
			category = '[[Category:Missing ' .. type:lower() .. ']]'
		end
	end
	return value .. category
end
return p