Module:Lua

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This module depends on the following other modules:

• Module:TableTools
• Module:Arguments
• Module:Yesno

Implements {{Lua}}.

This module was adapted from Module:Lua banner on Wikipedia.
Adaptation is noted for reference and attribution only. This module may differ from the original in function or in usage. The documentation on Wikipedia may be helpful in understanding this module.

The above documentation is transcluded from Module:Lua/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (create) pages.
Subpages of this module.

-------------------------------------------------------------------------------
-- 
--                                 Module:Lua
-- 
-- This module implements Template:Lua.
-------------------------------------------------------------------------------

local mTableTools = require('Module:TableTools')
local getArgs = require('Module:Arguments').getArgs
local yesno = require('Module:Yesno')
local p = {}

function p.main(frame)
    local args = getArgs(frame, {
        wrappers = 'Template:Lua'
    })
    return p._main(args)
end

function p._main(args)
    local modules = mTableTools.compressSparseArray(args)
    local box = p.renderBox(modules)
    local trackingCategories = p.renderTrackingCategories(args, modules)
    return box .. trackingCategories
end

function p.renderBox(modules)
    local html = mw.html.create('div')
        :addClass('c-sidebar')
    if #modules < 1 then
        html
            :tag('strong')
                :addClass('error')
                :wikitext('Error: no modules specified')
    else
        local title = mw.title.getCurrentTitle()
        if title.subpageText == 'doc' then
            title = title.basePageTitle
        end
        local header = html:tag('div')
            :cssText('text-align: center;')
            :tag('p')
                :wikitext('[[File:Lua programming language logo.svg|40px|alt=Lua logo|link=]]')
                :done()
        if title.contentModel == 'Scribunto' then
            html
                :tag('p')
                    :wikitext('This module depends on the following other modules:')
        else
            html
                :tag('p')
                    :wikitext('This template uses the following modules:')
        end

        local list = html:tag('ul')
        for _, module in ipairs(modules) do
            list
                :tag('li')
                    :wikitext(string.format('[[:%s]]', module))
        end
    end
    return tostring(html)
end

function p.renderTrackingCategories(args, modules, title)
    if yesno(args.nocat) then
        return ''
    end
    local cats = {}
    local subpageBlacklist = {
        doc = true,
        sandbox = true,
        sandbox2 = true,
        testcases = true
    }
    title = title or mw.title.getCurrentTitle()
    if not subpageBlacklist[title.subpageText] then
        local protCatName
        if title.namespace == 10 then
            local category = args.category or 'Lua-based templates'
            cats[#cats + 1] = category
            protCatName = 'Templates using under-protected modules'
        elseif title.namespace == 828 then
            protCatName = 'Modules depending on under-protected modules'
        end
        if not args.noprotcat and protCatName then
            local protLevels = {
                autoconfirmed = 1,
                extendedconfirmed = 2,
                templateeditor = 3,
                sysop = 4
            }
            local currentProt
            if title.id ~= 0 then
                -- id is 0 (page does not exist) if am previewing before creating a template.
                currentProt = title.protectionLevels["edit"][1]
            end
            if currentProt == nil then
                currentProt = 0
            else
                currentProt = protLevels[currentProt]
            end
            for i, module in ipairs(modules) do
                local moduleProt = mw.title.new(module).protectionLevels["edit"][1]
                if moduleProt == nil then
                    moduleProt = 0
                else
                    moduleProt = protLevels[moduleProt]
                end
                if moduleProt < currentProt then
                    cats[#cats + 1] = protCatName
                    break
                end
            end
        end
    end
    for i, cat in ipairs(cats) do
        cats[i] = string.format('[[Category:%s]]', cat)
    end
    return table.concat(cats)
end

return p