Module:Shortcut

-- This module implements.

-- Set constants local cfg = {

-- The heading at the top of the shortcut box. It accepts the following parameter: -- $1 - the total number of shortcuts. (required) ['shortcut-heading'] = ' Shortcuts ',

-- The heading when |redirect=yes is given. It accepts the following parameter: -- $1 - the total number of shortcuts. (required) ['redirect-heading'] = ' Redirects ',

-- The error message to display when a shortcut is invalid (is not a string, or -- is the blank string). It accepts the following parameter: -- $1 - the number of the shortcut in the argument list. (required) ['invalid-shortcut-error'] = ' Shortcut #$1 was invalid (shortcuts must be strings of at least one character in length) ',

-- The error message to display when no shortcuts or other displayable content -- were specified. (required) ['no-content-error'] = ' Error: no shortcuts were specified and the |msg= parameter was not set. ',

-- A category to add when the no-content-error message is displayed. (optional) ['no-content-error-category'] = ' Shortcut templates with missing parameters ', }

-- Load required modules local checkType = require('libraryUtil').checkType local yesno = require('Module:Yesno')

local p = {}

local function message(msg, ...) return mw.message.newRawMessage(msg, ...):plain end

local function makeCategoryLink(cat) return string.format('%s:%s', mw.site.namespaces[14].name, cat) end

function p._main(shortcuts, options, frame, cfg) checkType('_main', 1, shortcuts, 'table') checkType('_main', 2, options, 'table', true) options = options or {} frame = frame or mw.getCurrentFrame local templateMode = options.template and yesno(options.template) local redirectMode = options.redirect and yesno(options.redirect) local isCategorized = not options.category or yesno(options.category) ~= false

-- Validate shortcuts for i, shortcut in ipairs(shortcuts) do		if type(shortcut) ~= 'string' or #shortcut < 1 then error(message(cfg['invalid-shortcut-error'], i), 2) end end

-- Make the list items. These are the shortcuts plus any extra lines such -- as options.msg. local listItems = {} for i, shortcut in ipairs(shortcuts) do		local templatePath, prefix if templateMode then -- Namespace detection local titleObj = mw.title.new(shortcut, 10) if titleObj.namespace == 10 then templatePath = titleObj.fullText else templatePath = shortcut end prefix = options['pre' .. i] or options.pre or '' end if options.target and yesno(options.target) then listItems[i] = templateMode and string.format("&#123;&#123;%s%s&#125;&#125;", prefix, templatePath, shortcut) or string.format("%s", shortcut) else listItems[i] = frame:expandTemplate{ title = 'No redirect', args = templateMode and {templatePath, shortcut} or {shortcut, shortcut} }			if templateMode then listItems[i] = string.format("&#123;&#123;%s%s&#125;&#125;", prefix, listItems[i]) end end end table.insert(listItems, options.msg)

-- Return an error if we have nothing to display if #listItems < 1 then local msg = cfg['no-content-error'] msg = string.format(' %s ', msg) if isCategorized and cfg['no-content-error-category'] then msg = msg .. makeCategoryLink(cfg['no-content-error-category']) end return msg end

local root = mw.html.create root:wikitext(frame:extensionTag{ name = 'templatestyles', args = { src = 'Module:Shortcut/styles.css'} }) -- Anchors local anchorDiv = root :tag('div') :addClass('module-shortcutanchordiv') for i, shortcut in ipairs(shortcuts) do		local anchor = mw.uri.anchorEncode(shortcut) anchorDiv:tag('span'):attr('id', anchor) end

-- Shortcut heading local shortcutHeading do local nShortcuts = #shortcuts if nShortcuts > 0 then local headingMsg = options['shortcut-heading'] or				redirectMode and cfg['redirect-heading'] or				cfg['shortcut-heading'] shortcutHeading = message(headingMsg, nShortcuts) shortcutHeading = frame:preprocess(shortcutHeading) end end

-- Shortcut box local shortcutList = root :tag('div') :addClass('module-shortcutboxplain noprint') :attr('role', 'note') if options.float and options.float:lower == 'left' then shortcutList:addClass('module-shortcutboxleft') end if options.clear and options.clear ~= '' then shortcutList:css('clear', options.clear) end if shortcutHeading then shortcutList :tag('div') :addClass('module-shortcutlist') :wikitext(shortcutHeading) end local ubl = require('Module:List').unbulleted(listItems) shortcutList:wikitext(ubl) return tostring(root) end

function p.main(frame) local args = require('Module:Arguments').getArgs(frame)

-- Separate shortcuts from options local shortcuts, options = {}, {} for k, v in pairs(args) do		if type(k) == 'number' then shortcuts[k] = v		else options[k] = v		end end

-- Compress the shortcut array, which may contain nils. local function compressArray(t) local nums, ret = {}, {} for k in pairs(t) do			nums[#nums + 1] = k		end table.sort(nums) for i, num in ipairs(nums) do			ret[i] = t[num] end return ret end shortcuts = compressArray(shortcuts)

return p._main(shortcuts, options, frame) end

return p