查看“模块:Eval”的源代码

    local module = {}
    local getArgs = require("Module:Arguments").getArgs
     
    local preprocessNoWiki = function(wiki)
        wiki = mw.ustring.gsub(wiki, "(%$+)NOWIKI_([ES])", function(prefix, postfix)
            local length, tag = math.modf(mw.ustring.len(prefix) / 2)
            
            local escape = ""
            for i = 1, length do escape = escape .. "$" end
            if tag == 0 then
                tag = "NOWIKI_" .. postfix
            elseif postfix == "S" then
                tag = "<nowiki>"
            else
                tag = "</nowiki>"
            end
            
            return escape .. tag
        end)
        
        return wiki
    end
     
    function module.template(frame, args)
        args = args or getArgs(frame, { wrappers = "Template:Eval" })
        local parentTitle = tostring((frame:getParent() or frame):getTitle())
        local offset
        if parentTitle == "Template:Eval" then
            offset = 1
        else
            offset = 0
        end
        
        local tTitle = mw.text.trim(args[1 + offset] or "")
        if tTitle == "" then return nil end
        
        local tArgs = {}
        
        local indexes = {}
        for k, _ in pairs(args) do
            if type(k) == "number" then
                if k > 1 + offset then
                    table.insert(indexes, k)
                end
            end
        end
        table.sort(indexes)
        for _, index in ipairs(indexes) do
            local wiki = args[index]
            wiki = mw.text.unstripNoWiki(wiki)
            wiki = mw.text.decode(wiki)
            table.insert(tArgs, preprocessNoWiki(wiki))
        end
        for k, v in pairs(args) do
            if type(k) ~= "number" then
                local wiki = v
                wiki = mw.text.unstripNoWiki(wiki)
                wiki = mw.text.decode(wiki)
                table.insert(tArgs, mw.ustring.format("%s=%s", k, preprocessNoWiki(wiki)))
            end
        end
        
        tArgs = table.concat(tArgs, "|")
        if mw.ustring.len(tArgs) > 0 then
            tArgs = "|" .. tArgs
        end
        return frame:preprocess(mw.ustring.format("{{ %s %s}}", tTitle, tArgs))
    end
     
    function module.wikitext(frame, args)
        args = args or frame.args
        local wiki = args[1] or ""
        wiki = mw.text.unstripNoWiki(wiki)
        wiki = mw.text.decode(wiki)
        return frame:preprocess(preprocessNoWiki(wiki))
    end
     
    function module.page(frame, args)
        args = args or frame.args
        local title = mw.title.new(mw.text.trim(args[1] or ""))
        if title ~= nil and title.exists and title.contentModel == "wikitext" then
            local content = title:getContent()
            return frame:preprocess(content)
        end
    end
     
    return module