Module:Class Explained

-- This module implements, and-- .

local mArguments -- lazily loadedlocal definitions = mw.loadJsonData('Module:Class/definition.json')

local p =

---------------------------------------------------------------------------------- Local configuration and messages--------------------------------------------------------------------------------

local cfg =

---------------------------------------------------------------------------------- Argument helper functions--------------------------------------------------------------------------------

local function getRawArgs(frame, wrapper) --Retrieves the arguments from the frame mArguments = mArguments or require('Module:Arguments') return mArguments.getArgs(frame,)end

local function makeInvokeFunction(func, wrapper) --Wraps a general function into an invokable version return function (frame) local args = getRawArgs(frame, wrapper) return func(args) endend

---------------------------------------------------------------------------------- String helper functions--------------------------------------------------------------------------------

local function trim(str) --Trims strings, passes through non-strings without modification return (type(str)

'string') and mw.text.trim(str) or strend

local function normalizeValue(val) --Normalizes strings, particularly class codes if type(val)

'string' then val = trim(val):lower end if val

then val = nil end return valend

local function ucfirst(str) --Capitalizes the first character of a string return mw.ustring.upper(mw.ustring.sub(str, 1, 1)) .. mw.ustring.sub(str, 2)end

---------------------------------------------------------------------------------- Definition helper functions--------------------------------------------------------------------------------

local function getDefinition(code) --Retrieves the definition and canonical class code for a given code. --Returns two values: the definition object and the canonical class code --string. local canonicalCode = normalizeValue(code) if code

cfg.defaultCode then canonicalCode = code end local class = definitions[canonicalCode] while class and class.alias do canonicalCode = class.alias class = definitions[class.alias] end if not class then return nil, nil end return class, canonicalCodeend

local function getDefault --Shortcut function for retrieving the default definition return getDefinition(cfg.defaultCode) end

local function getProperty(class, default, map) --Retrieves a given property from a string given a class definition, a --default class definition, and a map for the path to traverse through the --class object. The map should be a sequential table of string property --names, e.g. would retrieve someClass.colour.base local prop, dProp = class, default for k, v in ipairs(map) do prop = ((type(prop)

'table') or nil) and prop[v] dProp = ((type(dProp)

'table') or nil) and dProp[v] end if prop

nil then prop = dProp end return propend

---------------------------------------------------------------------------------- Color functions--------------------------------------------------------------------------------

function p._colour(code) --Retrieves the base colour for a given code return getProperty(getDefinition(code), getDefault, cfg.baseColourPath)end

function p.colour(frame) --Retrieves the base colour for a given code; is invokable local args = getRawArgs(frame, cfg.colourTemplateLocation) -- Nowiki tags prevent output beginning with "#" from triggering bug 14974. return frame:extensionTag('nowiki', p._colour(args[1]))end

---------------------------------------------------------------------------------- Icon functions--------------------------------------------------------------------------------

function p._icon(args) --Retrieves an icon image and formats it as wikitext local class = getDefinition(args[cfg.argumentNames.class] or args[1]) local default = getDefault local file = getProperty(class, default, cfg.iconPath) local label = getProperty(class, default, cfg.tooltipPath) or ucfirst(getProperty(class, default, cfg.fullLabelPath)) local attrib = getProperty(class, default, cfg.iconAttribPath) local size = args.size or '16px' local span = mw.html.create('span')

span :cssText(args[cfg.argumentNames.style]) :attr('title', label) :wikitext(string.format('', file, label, attrib and or '|link=' ) ) return tostring(span)end

p.icon = makeInvokeFunction(p._icon, cfg.iconTemplateLocation)--Invokable version of p._icon

---------------------------------------------------------------------------------- Class functions--------------------------------------------------------------------------------

function p._class(args) --Parses its arguments into a table cell with an optional icon, a name --linked to an appropriate category, and appropriate colour styling local classDef, classCode = getDefinition(args[cfg.argumentNames.class] or args[1]) local default = getDefault local iconDefault = getProperty(classDef, default, cfg.iconDefaultPath) local shortLabel = getProperty(classDef, default, cfg.shortLabelPath) local categoryRoot = getProperty(classDef, default, cfg.categoryRootPath) --o is short for "options", go for "get options". Bool true → case-sensitive local o, go =, cfg.getOptions for k, v in pairs(go) do o[k] = v[2] and trim(args[v[1]]) or normalizeValue(args[v[1]]) end

local cell = mw.html.create(o.header and 'th' or 'td') --image=yes forces icon, image=no disables it, otherwise checks default local icon = iconDefault and (o.image ~= cfg.no) or (o.image

cfg.yes) icon = icon and p.icon(args) .. ' ' or

local category if o.fullcategory then category = o.fullcategory elseif o.category then category = string.format(cfg.catRootFormat, categoryRoot, o.category) elseif o.topic then category = string.format(cfg.catTopicFormat, categoryRoot, o.topic) else category = string.format(cfg.catBasicFormat, categoryRoot) end local text = string.format(cfg.categoryFormat, category, shortLabel) cell :addClass(cfg.globalClass) :addClass(o.bold

cfg.no and cfg.classPrefix .. cfg.unboldClassSuffix or nil ) :addClass(cfg.classPrefix .. (classCode or cfg.defaultClassSuffix)) :attr('rowspan', tonumber(o.rowspan)) :wikitext(mw.getCurrentFrame:extensionTag, icon, text)

return tostring(cell)end

p.class = makeInvokeFunction(p._class, cfg.templateLocation)--Invokable version of p._class

return p