Module:Uses Chart

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Implements {{Uses Chart}}.

A couple test cases

One style page

{{Uses Chart|Template:Arrowlist/styles.css}}

Multiple style pages

{{Uses Chart|Template:Arrowlist/styles.css|Template:Routemap/styles.css}}

Sandbox version of style page exists

{{Uses Chart|Template:Uses Chart/example.css}}

No style pages specified

{{Uses Chart}}

Unicode

{{Uses Chart|Template:§&"woof"\//styles.css}}

The above documentation is transcluded from Module:Uses Chart/doc. (edit | history)
Editors can experiment in this module's sandbox (create | mirror) and testcases (create) pages.
Subpages of this module.

--Based on [[Module:Uses TemplateStyles]] 
local yesno = require('Module:Yesno')
local mList = require('Module:List')
local mTableTools = require('Module:TableTools')
local mMessageBox = require('Module:Message box')
local TNT = require('Module:TNT')

local p = {}

local function format(msg, ...)
	return TNT.format('I18n/Uses Chart', msg, ...)
end

local function getConfig()
	return mw.loadData('Module:Uses Chart/config')
end

local function renderBox(cSources)
	local boxArgs = {
		type = 'notice',
		small = true,
		image = string.format('[[File:Chart_extension_logo.svg|32px|alt=%s]]', format('logo-alt'))
	}
	if #cSources < 1 then
		boxArgs.text = format(mw.title.getCurrentTitle():inNamespaces(828,829) and 'emptylist-module' or 'emptylist-template')
	else
		local cfg = getConfig()
		local cSourcesLinks = {}
		for i, cs in ipairs(cSources) do
			cs = mw.ustring.gsub(mw.ustring.gsub(cs, "^:?[Cc]ommons:", ""), "^[Dd]ata:", "")
			local csTitle = mw.title.new(cs)
			cs = csTitle.fullText
			local link
			if csTitle.namespace ~= 828 then
				cs = "Data:" .. cs
				if not (mw.ustring.find(cs, "%.chart$") or mw.ustring.find(cs, "%.tab$")) then
					link = string.format('[[:commons:%s.chart|%s.chart]] ([[:commons:%s.tab|.tab]])', cs, cs, cs)
				end
			end
			link = link or string.format('[[:commons:%s|%s]]', cs, cs)
			cSourcesLinks[i] = link
		end
		local cSourcesList = mList.makeList('bulleted', cSourcesLinks)
		boxArgs.text = format(
			mw.title.getCurrentTitle():inNamespaces(828,829) and 'header-module' or 'header-template') ..
			'\n' .. cSourcesList
	end
	return mMessageBox.main('mbox', boxArgs)
end

local function renderTrackingCategories(args, cSources, titleObj)
	if yesno(args.nocat) then
		return ''
	end
	
	local cfg = getConfig()
	
	local cats = {}
	
	-- Error category
	if #cSources < 1 and cfg['error_category'] then
		cats[#cats + 1] = cfg['error_category']
	end
	
	-- TemplateStyles category
	titleObj = titleObj or mw.title.getCurrentTitle()
	if (titleObj.namespace == 10 or titleObj.namespace == 828)
		and not cfg['subpage_blacklist'][titleObj.subpageText]
	then
		local category = args.category or cfg['default_category']
		if category then
			cats[#cats + 1] = category
		end
	end
	for i, cat in ipairs(cats) do
		cats[i] = string.format('[[Category:%s]]', cat)
	end
	return table.concat(cats)
end

function p._main(args)
	local cfg = getConfig()
	local cSources = mTableTools.compressSparseArray(args)
	local box = renderBox(cSources)
	local trackingCategories = renderTrackingCategories(args, cSources)
	return box .. trackingCategories
end

function p.main(frame)
	local origArgs = frame:getParent().args
	local args = {}
	for k, v in pairs(origArgs) do
		v = v:match('^%s*(.-)%s*$')
		if v ~= '' then
			args[k] = v
		end
	end
	return p._main(args)
end

return p