Module:Transclude
From lisamarieyoung.ca
Documentation for this module may be created at Module:Transclude/doc
-- <nowiki> -------------------------------------------------------------------------------- -- Module that allows transcluding a template with all parent arguments. -- Useful in `/i18n` template subpages that delegate to a `/layout` subpage. -- -- @module transclude -- @author [[User:ExE Boss]] -------------------------------------------------------------------------------- require('strict') local checkType = require('libraryUtil').checkType; local p = {} local INVALID_TITLES = { ["."] = true, [".."] = true, }; local function _ne(value) return value and value ~= '' end -------------------------------------------------------------------------------- -- Helper function that merges argument tables. -- -- @function mergeArgs -- @param {table} inArgs -- @param {table} outArgs -------------------------------------------------------------------------------- local function mergeArgs(inArgs, outArgs, opts) checkType("mergeArgs", 1, inArgs, "table"); checkType("mergeArgs", 2, outArgs, "table"); checkType("mergeArgs", 3, opts, "table", true); opts = opts or {} local ignoredParams = opts.ignoredParams; local ignoredPrefix = opts.ignoredPrefix; for name, value in pairs(inArgs) do if (type(name) == "string") then if not ( (ignoredParams and ignoredParams[name] == true) or (ignoredPrefix and ignoredPrefix == name:sub(1, ignoredPrefix:len())) ) then outArgs[name] = value; end else outArgs[name] = value; end end return outArgs; end -- Exported for testing: p['#mergeArgs'] = mergeArgs; local mt = {}; function mt.__index(_, name) if ( type(name) ~= "string" or INVALID_TITLES[name] or mw.ustring.find(name, "#", nil, true) ) then return nil; end local title = mw.title.new(name, "Template") if (not title) then return nil; end return function (frame) checkType('transclude["' .. name .. '"]', 1, frame, "table"); local parentFrame = frame:getParent(); local ignoredParams, ignoredPrefix; if _ne(frame.args["#ignoredParams"]) then ignoredParams = {}; for m in mw.text.gsplit(frame.args["#ignoredParams"], '|', true) do ignoredParams[mw.text.trim(m)] = true; end end if _ne(frame.args['#ignoredPrefix']) then ignoredPrefix = frame.args['#ignoredPrefix']; end local args = {}; if (parentFrame) then mergeArgs(parentFrame.args, args, { ignoredParams = ignoredParams, ignoredPrefix = ignoredPrefix, }); end mergeArgs(frame.args, args, { ignoredPrefix = "#", }); if (not title.exists) then return "[[:" .. title.fullText .. "]]"; end return frame:expandTemplate{ title = title, args = args, }; end end return setmetatable(p, mt);