--[[
@exports
usagesample( frame )
argcount( frame )
args2table( args, onGetKey, forCustom )
paramtable( frame )
description( frame )
templatedata( frame )
]]
local p = {}
-- Helper function, not exposed function tobool(st)
if type( st ) == 'string' then
return st == 'true'
else
return not not st
end
end
-- Required to determine in which languages the interface texts without langcode are
local contentLangcode = mw.language.getContentLanguage():getCode()
-- Forward declaration
local msg, langIsInit, userLang
local messagePrefix = "templatedata-doc-"
local i18n = {}
i18n['params'] = "Template parameters"
i18n['param-name'] = "Parameter"
i18n['param-desc'] = "Description"
i18n['param-type'] = "Type"
i18n['param-default'] = "Default"
i18n['param-status'] = "Status"
i18n['param-status-optional'] = "optional"
i18n['param-status-required'] = "required"
i18n['param-status-suggested'] = "suggested"
i18n['param-status-deprecated'] = "deprecated"
i18n['param-default-empty'] = "empty"
function initLangModule()
if langIsInit then
return
end
--! From de:Modul:Expr; by de:User:PerfektesChaos; --! Derivative work: Rillke userLang = mw.getCurrentFrame():preprocess( '⧼lang⧽' )
msg = function( key )
-- Retrieve localized message string in content language
-- Precondition:
-- key -- string; message ID
-- Postcondition:
-- Return some message string
-- Uses:
-- > messagePrefix
-- > i18n
-- > userLang
-- mw.message.new()
local m = mw.message.new( messagePrefix .. key )
local r = false
if m:isBlank() then
r = i18n[ key ]
else
m:inLanguage( userLang )
r = m:plain()
end
if not r then
r = '((('.. key .. ')))'
end
return r
end -- msg()
langIsInit = true
end
-- A "hash" / table of everything TemplateData takes -- to ease maintenance.
-- The type is automatically determined if t is omitted. -- If the type does not match or can't be converted, an error will be thrown! -- Available types (LUA-Types with exceptions): -- InterfaceText, boolean, number, selection, table, string -- selection*: - requires a selection-string of pipe-separated possibilities to be supplied -- InterfaceText*: A free-form string (no wikitext) in the content-language of the wiki, or, -- an object containing those strings keyed by language code. local paraminfoTemplate = {
description = {
default = ,
t = 'InterfaceText',
alias = 'desc'
}
} local paraminfoTLParams = {
label = {
default = ,
t = 'InterfaceText'
},
required = {
default = false,
extract = function(pargs, number, paramVal)
local req = (pargs[number .. 'stat'] == 'required')
return tobool( paramVal or req )
end
},
suggested = {
default = false,
extract = function(pargs, number, paramVal)
local sugg = (pargs[number .. 'stat'] == 'suggested')
return tobool( paramVal or sugg )
end
},
description = {
default = ,
t = 'InterfaceText',
alias = 'd'
},
deprecated = {
default = false,
extract = function(pargs, number, paramVal)
local depr = (pargs[number .. 'stat'] == 'deprecated')
return tobool( paramVal or depr )
end
},
aliases = {
default = ,
t = 'table',
extract = function(pargs, number, paramVal)
local key = number .. 'aliases'
local tdkey = key .. '-td'
local aliases = pargs[tdkey] or pargs[key]
if aliases then
aliases = mw.text.split( aliases, '/', true )
end
return aliases
end
},
default = {
default = ,
t = 'string',
alias = 'def'
},
type = {
default = 'unknown',
t = 'selection',
selection = 'unknown|number|string|string/wiki-user-name|string/wiki-page-name|string/line|line|wiki-page-name|wiki-file-name|wiki-user-name|content|unbalanced-wikitext'
},
inherits = {
default = nil,
t = 'string'
}
-- sets will be treated differently because we can only have a plain structure in wikitext
} local tableLayout = {
{
col = 'param-name',
width = '15%',
extract = function(item, renderCell, monolingual)
local alias, param = , item.key
local aliasTT = ''
param = '' .. param .. '' if item.aliases then alias = aliasTT .. table.concat(item.aliases, '
' .. aliasTT) .. ''
param = table.concat({param, '
'})
end
renderCell(param, colspan)
end
}, {
col = 'param-desc',
cols = 2,
width = '65%',
extract = function(item, renderCell, monolingual)
local label = item.label or
label = monolingual(label)
local labelLen = #label
local colspan = 2 - labelLen
if labelLen > 0 then
renderCell(label)
end
renderCell(monolingual(item.description), colspan)
end
}, {
col = 'param-default',
width = '10%',
extract = function(item, renderCell, monolingual)
local def = monolingual(item.default) or
if #def == 0 then
def = '' .. msg('param-default-empty') .. ''
end
renderCell(def)
end
}, {
col = 'param-status',
width = '10%',
extract = function(item, renderCell, monolingual)
local stat = msg('param-status-optional')
if item.required then
stat = '' .. msg('param-status-required') .. ''
elseif item.deprecated then
stat = msg('param-status-deprecated')
elseif item.suggested then
stat = msg('param-status-suggested')
end
renderCell(stat)
end
}
}
-- Initialize param info -- Avoids having to add redundant information to the preceding tables function init( which )
local setDefault = function(v)
if v.t == nil and v.default ~= nil then
v.t = type( v.default )
end
if v.selection then
v.selection = '|' .. v.selection .. '|'
end
end
for a, v in pairs( which ) do
setDefault(v)
end
end function initParamTables()
init( paraminfoTemplate ) init( paraminfoTLParams )
end
USAGE PART ----------------------
function p.argcount( frame )
local pargs = ( frame:getParent() or {} ).args or {}
local ac = 0
for i, arg in pairs( pargs ) do
if ('number' == type(i)) then
ac = ac + 1
end
end
return ac
end
function p.usagesample( frame )
local pargs = ( frame:getParent() or {} ).args or {}
local multiline = (pargs.lines == 'multi' or pargs.print == 'multi' or pargs.print == 'infobox')
local align = pargs.print == 'infobox'
if not pargs.lines and not pargs.print and pargs.type == 'infobox' then
multiline = true
align = true
end
local sepStart = ' |'
local sepEnd = multiline and '\n' or
local sep = sepEnd
local subst = #(pargs.mustbesubst or ) > 0 and 'subst:' or
local beforeEqual = multiline and ' ' or
local equal = beforeEqual .. '= '
local templateTitle = pargs.name or
local args, argName, result = {}
local maxArgLen, eachArg = 0
sep = sep .. sepStart
local comapareLegacyVal = function(val)
return val == 'optional-' or val == 'deprecated'
end
local shouldShow = function(i)
if comapareLegacyVal(pargs[i .. 'stat']) or
comapareLegacyVal(pargs[i .. 'stat-td']) or
pargs[i .. 'deprecated'] == true then
return false
end
return true
end
eachArg = function(cb)
for i, arg in pairs( pargs ) do
if ('number' == type(i)) then
argName = mw.text.trim( arg or )
if #argName == 0 then
argName = tostring(i)
end
if shouldShow(i) then
cb(argName)
end
end
end
end
if align then
eachArg(function( arg )
local argL = #arg
maxArgLen = argL > maxArgLen and argL or maxArgLen
end)
end
eachArg(function( arg )
local space =
if align then
space = (' '):rep(maxArgLen - #arg)
end
table.insert( args, argName .. space .. equal )
end)
if #args == 0 then
sep =
sepEnd =
sepStart =
end
if #templateTitle == 0 then
templateTitle = mw.title.getCurrentTitle().text
end
result = table.concat( args, sep )
result = table.concat({ mw.text.nowiki('Template:'), subst, templateTitle, sep, result, sepEnd, '' })
if multiline then
-- Preserve whitespace in front of new lines
result = frame:callParserFunction{ name = '#tag', args = { 'poem', result } }
end
return result
end
GENERAL PART ---------------------
function p.args2table(args, onGetKey, consumer)
initParamTables()
local sets, asParamArray, laxtype, processParams, processDesc
if 'paramtable' == consumer then
asParamArray = true
processParams = true
laxtype = true
elseif 'templatedata' == consumer then
sets = true
processParams = true
processDesc = true
unstrip = true
elseif 'description' == consumer then
processDesc = true
laxtype = true
end
-- All kind of strange stuff with the arguments is done, so play safe and make a copy
local pargs = mw.clone( args )
-- Array-like table containing all parameter-numbers that were passed
local templateArgs = {}
-- Arguments that are localized (i.e. the user passed 1desc-en=English description of parameter one)
local i18nTemplateArgs = {}
-- Ensure that tables end up as array/object (esp. when they are empty)
local tdata = {description="", params={}, sets={}}
local isArray = { __tostring = function() return "JSON array" end } isArray.__index = isArray
setmetatable(tdata.sets, isArray)
onGetKey = onGetKey or function( prefix, alias, param )
local key, key2, tdkey, tdkey2
key = prefix .. (alias or param)
key2 = prefix .. param
tdkey = key .. '-td'
tdkey2 = key2 .. '-td'
return tdkey, tdkey2, key, key2
end
local extractData = function( pi, number )
local prefix = number or
local ppv, paramVal
local key1, key2, key3, key4
local paramKey, paramTable, processKey
if number then
paramKey = mw.text.trim( pargs[number] )
if == paramKey then
paramKey = tostring( number )
end
paramTable = {}
if asParamArray then
paramTable.key = paramKey
table.insert(tdata.params, paramTable)
else
tdata.params[paramKey] = paramTable
end
end
for p, info in pairs( pi ) do
key1, key2, key3, key4 = onGetKey(prefix, info.alias, p)
paramVal = nil
processKey = function(key)
if paramVal ~= nil then return end
local plain, multilingual = pargs[key], i18nTemplateArgs[key]
paramVal = multilingual or plain
end
processKey( key1 )
processKey( key2 )
processKey( key3 )
processKey( key4 )
-- Ensure presence of entry in content language
ppv = pargs[key1] or pargs[key2] or pargs[key3] or pargs[key4] or info.default
if 'table' == type( paramVal ) then
if (nil == paramVal[contentLangcode]) then
paramVal[contentLangcode] = ppv
end
else
paramVal = ppv
end
if 'function' == type( info.extract ) then
if 'string' == type( paramVal ) then
paramVal = mw.text.trim( paramVal )
if == paramVal then
paramVal = nil
end
end
paramVal = info.extract( pargs, number, paramVal )
end
local insertValue = function()
if number then
paramTable[p] = paramVal
else
tdata[p] = paramVal
end
end
if info.selection then
if info.selection:find( paramVal, 1, true ) then
insertValue()
end
elseif 'InterfaceText' == info.t then
if ({ table=1, string=1 })[type( paramVal )] then
insertValue()
end
else
local paramType = type( paramVal )
if 'string' == info.t and 'string' == paramType then
paramVal = mw.text.trim( paramVal )
if ~= paramVal then
insertValue()
end
elseif 'boolean' == info.t then
paramVal = tobool(paramVal)
insertValue()
elseif 'number' == info.t then
paramVal = tonumber(paramVal)
insertValue()
elseif paramType == info.t then
insertValue()
elseif paramType == 'nil' then
-- Do nothing
elseif not laxtype and 'string' == info.t and 'table' == paramType then
-- Convert multilingual object into content language string
paramVal = paramVal[contentLangcode]
insertValue()
else
if laxtype then
insertValue()
else
error( p .. ': Is of type ' .. paramType .. ' but should be of type ' .. (info.t or 'unknown'), 1 )
end
end
end
end
-- Now, treat sets
if sets then
key1 = prefix .. 'set-td'
key2 = prefix .. 'set'
paramVal = pargs[key1] or pargs[key2]
if paramVal then
local found = false
for i, s in ipairs( tdata.sets ) do
if s.label == paramVal then
table.insert( s.params, p )
found = true
end
end
if not found then
table.insert( tdata.sets, {
label = paramVal,
params = { p }
} )
end
end
end
end
-- First, analyse the structure of the provided arguments
for a, v in pairs( pargs ) do
if unstrip then
v = mw.text.unstrip( v )
pargs[a] = v
end
if type( a ) == 'number' then
table.insert( templateArgs, a )
else
local argSplit = mw.text.split( a, '-', true )
local argUnitl = {}
local argAfter = {}
local isTDArg = false
local containsTD = a:find( '-td', 1, true )
for i, part in ipairs( argSplit ) do
if isTDArg or (containsTD == nil and i > 1) then
-- This is likely a language version
table.insert( argAfter, part )
else
table.insert( argUnitl, part )
end
if part == 'td' then
isTDArg = true
end
end
if #argAfter > 0 then
argUnitl = table.concat( argUnitl, '-' )
argAfter = table.concat( argAfter, '-' )
i18nTemplateArgs[argUnitl] = i18nTemplateArgs[argUnitl] or {}
i18nTemplateArgs[argUnitl][argAfter] = v
end
end
end
-- Then, start building the actual template
if processDesc then
extractData( paraminfoTemplate )
end
if processParams then
for i, number in pairs( templateArgs ) do
extractData( paraminfoTLParams, number )
end
end
return tdata, #templateArgs
end
CUSTOM PARAMETER TABLE PART -------------
-- A custom key-pref-function local customOnGetKey = function( prefix, alias, param )
local key, key2, tdkey, tdkey2 key = prefix .. (alias or param) key2 = prefix .. param tdkey = key .. '-td' tdkey2 = key2 .. '-td' return key2, key, tdkey2, tdkey
end local toUserLanguage = function(input, frame)
if type(input) == 'table' then
input = frame:expandTemplate{ title = 'LangSwitch', args = input }
end
return input
end
function p.description(frame)
local pargs = ( frame:getParent() or {} ).args or {}
local tdata, paramLen
local monolingual = function(input)
return toUserLanguage(input, frame)
end
tdata, paramLen = p.args2table(pargs, customOnGetKey, 'description')
return monolingual(tdata.description)
end
function p.paramtable(frame)
local pargs = ( frame:getParent() or {} ).args or {}
local tdata, paramLen
if 'only' == pargs.useTemplateData then
return 'param table - output suppressed'
end
-- Initialize the language-related stuff
initLangModule()
local monolingual = function(input)
return toUserLanguage(input, frame)
end
tdata, paramLen = p.args2table(pargs, customOnGetKey, 'paramtable')
if 0 == paramLen then
return
end
local row, rows = , {}
local renderCell = function(wikitext, colspan)
local colspan, oTd = colspan or 1, ''
if colspan > 1 then
oTd = ''
end
row = table.concat({ row, oTd, wikitext, '' }) end -- Create the header for i, field in ipairs( tableLayout ) do local style = ' style="width:' .. field.width .. '"' local colspan = if field.cols then colspan = ' colspan="' .. field.cols .. '"' end local th = '<th' .. style .. colspan .. '>' row = row .. th .. msg(field.col) .. '' end table.insert(rows, row) -- Now transform the Lua-table into an HTML-table for i, item in ipairs( tdata.params ) do row = for i2, field in ipairs( tableLayout ) do field.extract(item, renderCell, monolingual) end table.insert(rows, row) end return '
' .. table.concat(rows, '') .. ''
end
TEMPLATEDATA PART ------------------
-- A real parser/transformer would look differently but it would likely be much more complex -- The TemplateData-portion for Template:TemplateBox function p.templatedata(frame)
local tdata
local args = frame.args or {}
local formatting = args.formatting
local pargs = ( frame:getParent() or {} ).args or {}
local useTemplateData = pargs.useTemplateData
if (formatting == 'pretty' and useTemplateData ~= 'export') or
(not useTemplateData) or
(useTemplateData == 'export' and formatting ~= 'pretty') then
local warning = "Warning: Module:TemplateBox - templatedata invoked but not requested by user (setting useTemplateData=1)."
mw.log(warning)
tdata = '{"description":"' .. warning .. '","params":{},"sets":[]}'
return tdata
end
-- Load the JSON-Module which will convert LUA tables into valid JSON
local JSON = require('Module:JSON')
JSON.strictTypes = true
-- Obtain the object containing info
tdata = p.args2table(pargs, nil, 'templatedata')
-- And finally return the result
if formatting == 'pretty' then
return JSON:encode_pretty(tdata)
else
return JSON:encode(tdata)
end
end
return p
How to convert a template
Before you apply this template, first you have to prepare the template.
Pick a template
—See for example Template:Cc-by-1.0 before changes.
First you have to pick a template to autotranslate.
In this documentation, we will name our "selected template" as: Template:Template name
- See Commons:Template i18n for a list of templates needing translation or translated.
Create a layout template
—See for example Template:Apache/layout.
You must create a layout template, named Template:Template name/layout, to contain the layout of all language versions of the template. The easiest way to do this is to copy a layout template of a similar template.
This template should not add any categories when transcluded.
Convert existing language versions
—See for example Template:Apache/en.
All versions must be subpages of Template:Template name, and his name must use the appropriate prefix, as used on Wikipedia when adding a new language –ISO 639 language code–. For example, Spanish subpage must be named Template:Template name/es
Usually the English language link to the main template –Template:Template name–. That is incorrect, point it to the Template:Template name/en subpage.
Each language version of the template should be checked and converted to use the layout template –Template:Template name/layout–. Start with the English language version and compare it to the current template.
Note that everything that is not supposed to be included together with the template, like {{translated tag|cleanup}} or {{documentation}}, must be inside a <noinclude> tag.
Here is the syntax you must use for Template:Template name/<prefix>.
{{Template name/layout
|text=<translated text of the template>
|lang=<prefix>
}}<noinclude>
{{translated tag|license}}
</noinclude>
Create a documentation page
—See for example Template:Apache/doc.
Create a documentation page at Template:Template name/doc. This documentation page should include some code for creating language versions of the template. {{#if:||}}{{#switch:{{{incl}}}|1={|2=|{{}}[[:{{#if:|{{{lang}}}:}}Template:{{#if:TemplateBox|TemplateBox|Tl}}|{{#switch:{{{incl}}}|1={|2={{}}{{#if:|{{{2}}}|{{#if:TemplateBox|TemplateBox|Tl}}}}{{#switch:{{{incl}}}|1=}|2=}}}}]]{{#switch:{{{incl}}}|1=}|2=|}}}}{{#if:||}} has a |il8n=autotranslate option which provides a standard explanation of how to localise an autotranslated template.
Convert the main template
—See for example Template:Apache.
The last step is to enable the template. Be sure to check everything before you enable the template. You can cause a really big mess!
To enable the template, put this code in the template –Template:Template name–.
{{Autotranslate|1={{{1|}}}|2={{{2|}}}|3={{{3|}}}|base=template name}}
