Module:Class

-- This module implements [[Template:Class]], [[Template:Class/icon]] and
-- [[Template:Class/colour]].

local mArguments, mIcon -- modules to lazily load
local data = mw.loadData('Module:Class/data')

local p = {}

local function validateCode(code)
	if code then
		return code:match('^%s*(.-)%s*$'):lower() -- trim whitespace and put in lower case
	else
		return ''
	end
end

function p._color(code)
	code = validateCode(code)
	return data.colors[code] or data.colors._DEFAULT
end

function p.color(frame)
	mArguments = require('Module:Arguments')
	local args = mArguments.getArgs(frame, {
		wrappers = 'Template:Class/colour',
		trim = false,
		removeBlanks = false
	})
	local code = args[1]
	local color = p._color(code)
	-- We need nowiki tags as template output beginning with "#" triggers
	-- bug 14974.
	return frame:extensionTag('nowiki', color)
end

function p._icon(args)
	local code = validateCode(args.class or args[1])
	local iconData = data.icons[code]
	if iconData then
		local span = mw.html.create('span')
		span
			:cssText(args.style)
			:attr('title', iconData.title)
			:wikitext(string.format(
				'[[File:%s|%s|16px%s]]',
				iconData.image,
				iconData.tooltip,
				iconData.suppressLink and '|link=|alt=' or ''
			))
		return tostring(span)
	else
		mIcon = require('Module:Icon')
		return mIcon._main{args[1]}
	end
end

function p.icon(frame)
	mArguments = require('Module:Arguments')
	local args = mArguments.getArgs(frame, {
		wrappers = 'Template:Class/icon',
		trim = false,
		removeBlanks = false
	})
	return p._icon(args)
end

function p._class(args)
end

function p.class(frame)
	mArguments = require('Module:Arguments')
	local args = mArguments.getArgs(frame, {
		wrappers = 'Template:Class'
	})
	return p._class(args)
end

return p
[1] This is assumed to be a light-mode colour; it might be desirable to split this into light- and dark-mode properties.
[underscores-2] Underscores are probably better for file names because they're more easily used in URLs, and don't hurt anything being used in wikitext.
[lowerTitle-3] Lowercase is better for full or generic words, e.g. "featured", but title case is better for constructed values, e.g. "Start-Class".
[spaces-4] Spaces are probably better for referencing wiki pages because they're easily used as strings or in wikitext; use in URLs would have to do other transformations anyway.
[model 1]
[model 2]
[model 3]
[model 4]
Module:Class

Usage

Documentation for Module:Class/definition.json

Object model notes
