Modulis:Portal

local htmlBuilder = require('Module:HtmlBuilder')local data_module = "Module:Portal/data"local p = {}local function matchImagePage(s)-- Finds the appropriate image subpage given a lower-case-- portal name plus the first letter of that portal name.if type(s) ~= 'string' or #s < 1 then return endlocal firstLetter = mw.ustring.sub(s, 1, 1)local imagePageif mw.ustring.find(firstLetter, '^[a-z]') thenimagePage = 'Module:Portal/images/' .. firstLetterelseimagePage= 'Module:Portal/images/other'endlocal images = mw.loadData(imagePage)local image = images[s]if image thenreturn imageendendlocal function getAlias(s)-- Gets an alias from the image alias data page.local aliasData = mw.loadData('Module:Portal/images/aliases')for portal, aliases in pairs(aliasData) dofor _, alias in ipairs(aliases) doif alias == s thenreturn portalendendendendlocal function getImageName(s, portal)-- Gets the image name for a given string.if type(s) ~= 'string' or #s < 1 thenreturn 'Portal-puzzle.svg'ends = mw.ustring.lower(s)local image22 = mw.loadData(data_module)local image = image22[3]if image thenreturn imageelselocal alias = getAlias(s)image = matchImagePage(alias) -- If no alias was found this returns nil.if image thenreturn imageelsereturn 'Portal-puzzle.svg'endendendfunction p._portal(portals, args)-- This function builds the portal box used by the {{portal}} template.local root = htmlBuilder.create('div')root.addClass('noprint').addClass(args.left and 'tleft' or 'tright').addClass('portal').css('border', 'solid #aaa 1px').css('margin', args.margin or (args.left == 'yes' and '0.5em 1em 0.5em 0') or '0.5em 0 0.5em 1em').newline()-- Start the table. This corresponds to the start of the wikitext table in the old [[Template:Portal]].local tableroot = root.tag('table').css('background', '#f9f9f9').css('font-size', '85%').css('line-height', '110%').css('max-width', '175px').css('width', type(args.boxsize) == 'string' and (args.boxsize .. 'px'))-- If no portals have been specified, display an error and add the page to a tracking category.if not portals[1] thentableroot.wikitext('<strong class="error">No portals specified: please specify at least one portal</strong>[[Category:Portal templates without a parameter]]')end-- Display the portals specified in the positional arguments.for i, portal in ipairs(portals) dolocal image = getImageName(portal)-- Generate the html for the image and the portal name.tableroot.newline().tag('tr').attr('valign', 'middle').tag('td').css('text-align', 'center').wikitext(mw.ustring.format('[[File:%s|32x28px|alt=Portal icon]]', image)).done().tag('td').css('padding', '0 0.2em').css('vertical-align', 'middle').css('font-style', 'italic').css('font-weight', 'bold').wikitext(mw.ustring.format('[[Portal:%s|%s%sportal]]', portal, portal, args['break'] and '<br />' or ' '))endreturn tostring(root)endfunction p._image(portals)-- Wrapper function to allow getImageName() to be accessed through #invoke.return getImageName(portals[1])endlocal function getAllImageTables()-- Returns an array containing all image subpages (minus aliases) as loaded by mw.loadData.local images = {}local subpages = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'other'}for i, subpage in ipairs(subpages) dotable.insert(images, mw.loadData('Module:Portal/images/' .. subpage))endreturn imagesendfunction p._displayAll(portals, args)-- This function displays all portals that have portal images. This function is for maintenance purposes and should not be used in-- articles, for two reasons: 1) there are over 1500 portals with portal images, and 2) the module doesn't record how the portal-- names are capitalized, so the portal links may be broken.local lang = mw.language.getContentLanguage()local images = getAllImageTables()local count = 1for i, imageTable in ipairs(images) dofor portal in pairs(imageTable) doportals[count] = lang:ucfirst(portal)count = count + 1endendreturn p._portal(portals, args)endfunction p._imageDupes()-- This function searches the image subpages to find duplicate images. If duplicate images exist, it is not necessarily a bad thing,-- as different portals might just happen to choose the same image. However, this function is helpful in identifying images that-- should be moved to a portal alias for ease of maintenance.local exists, dupes = {}, {}local images = getAllImageTables()for i, imageTable in ipairs(images) dofor portal, image in pairs(imageTable) doif not exists[image] thenexists[image] = portalelsetable.insert(dupes, mw.ustring.format('The image "[[:File:%s|%s]]" is used for both portals "%s" and "%s".', image, image, exists[image], portal))endendendif #dupes < 1 thenreturn 'No duplicate images found.'elsereturn 'The following duplicate images were found:\n* ' .. table.concat(dupes, '\n* ')endendlocal function processPortalArgs(args)-- This function processes a table of arguments and returns two tables: an array of portal names for processing by ipairs, and a table of-- the named arguments that specify style options, etc. We need to use ipairs because we want to list all the portals in the order-- they were passed to the template, but we also want to be able to deal with positional arguments passed explicitly, for example-- {{portal|2=Politics}}. The behaviour of ipairs is undefined if nil values are present, so we need to make sure they are all removed.args = type(args) == 'table' and args or {}local portals = {}local namedArgs = {}for k, v in pairs(args) doif type(k) == 'number' and type(v) == 'string' then -- Make sure we have no non-string portal names.table.insert(portals, k)elseif type(k) ~= 'number' thennamedArgs[k] = vendendtable.sort(portals)for i, v in ipairs(portals) doportals[i] = args[v]endreturn portals, namedArgsendlocal function makeWrapper(funcName)-- Processes external arguments and sends them to the other functions.return function (frame)-- If called via #invoke, use the args passed into the invoking-- template, or the args passed to #invoke if any exist. Otherwise-- assume args are being passed directly in from the debug console-- or from another Lua module.local origArgsif frame == mw.getCurrentFrame() thenorigArgs = frame:getParent().argsfor k, v in pairs(frame.args) doorigArgs = frame.argsbreakendelseorigArgs = frameend-- Trim whitespace and remove blank arguments.local args = {}for k, v in pairs(origArgs) doif type(v) == 'string' thenv = mw.text.trim(v)endif v ~= '' thenargs[k] = vendendreturn p[funcName](processPortalArgs(args)) -- passes two tables to func: an array of portal names, and a table of named arguments.endendlocal funcNames = {'portal', 'image', 'imageDupes', 'displayAll'}for _, funcName in ipairs(funcNames) dop[funcName] = makeWrapper('_' .. funcName)endreturn p