Module:Fallback: Difference between revisions
Content deleted Content added
GVarnum-WMF (talk | contribs) m 1 revision imported from meta:Module:Fallback |
MusikBot II (talk | contribs) m Changed protection settings for "Module:Fallback": High-risk template or module (more info) ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)) |
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local p = {} |
local p = {} |
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-- List the full fallback chain from a language to default (usually English) |
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function p.fblist(lang) |
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local fbtable = mw.language.getFallbacksFor(lang) |
local fbtable = mw.language.getFallbacksFor(lang) |
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table.insert(fbtable, 1, lang) |
table.insert(fbtable, 1, lang) |
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--[[ |
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Take a translation from "Mediawiki:<Message-ID>/<language-code>" namespace |
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or from a loaded i18 resource bundle in MediaWiki for its UI messages (also |
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used by the "{{Int:<Message-ID>}}" parser function), before using the |
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provided default value. Requires args.message = 'Message-ID', instead of |
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args.message = 'actual translated message'. |
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--]] |
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table.insert(fbtable, 'message') |
table.insert(fbtable, 'message') |
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table.insert(fbtable, 'default') |
table.insert(fbtable, 'default') |
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Line 9: | Line 17: | ||
end |
end |
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--[==[ |
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⚫ | |||
Return an error if there is not default and no English version, otherwise |
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return the message in the most appropriate, plus the lang code as a second value. |
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--]==] |
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⚫ | |||
-- args: table of translations |
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if not args.en and not args.default and not args.message and args.nocat ~= '1' then |
if not args.en and not args.default and not args.message and args.nocat ~= '1' then |
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return error("langSwitch error: no default") |
return error("langSwitch error: no default") |
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end |
end |
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-- |
-- Get language (either stated one or user's default language). |
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if not lang then |
if not lang then |
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return '<strong class="error">LangSwitch Error: no lang</strong>' -- must become proper error |
return '<strong class="error">LangSwitch Error: no lang</strong>' -- must become proper error |
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end |
end |
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-- |
-- Get the list of acceptable language (lang + those in lang's fallback chain) and check their content. |
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for |
for _, code in ipairs(p.fblist(lang)) do |
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local msg = args[code] |
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if msg then |
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-- Trim the assigned message value before testing it. |
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if j == 'message' then return tostring(mw.message.new(args[j]):inLanguage(lang)) end -- if this is an interface message |
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msg = mw.text.trim(msg) |
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if args[j] ~= '' then return args[j], j end |
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if msg ~= '' then |
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if code == 'message' then |
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-- If this is an UI message. See [[mw:Manual:Messages API]]. |
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msg = mw.message.new(args.message):inLanguage(lang) |
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--[==[ If this message name does not exist, converting it to |
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a string would not return an actual message, but this name |
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within curved angle brackets U+29FC/U+29FD '⧼/⧽', |
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part of mathematical symbols). The UI message may also be |
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disabled administratively if it causes problems. |
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--]==] |
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if msg:exists() and not msg:isDisabled() then |
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--[==[FIXME: In which language is this message? |
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This may be in some fallback language and not lang. |
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Note that some UI messages may have placeholders like '%s' |
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but there's no way to replace them here by actual values. |
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--]==] |
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return tostring(msg), lang |
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end |
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elseif msg == '~' then |
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return nil, code |
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else |
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return msg, code |
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end |
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end |
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end |
end |
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end |
end |
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Line 30: | Line 65: | ||
end |
end |
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--[==[ |
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⚫ | |||
Version to be used from wikitext. |
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--]==] |
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⚫ | |||
local args = frame.args |
local args = frame.args |
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-- |
-- If no expected args provided than check parent template/module args. |
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if not args.en and not args.default and not args.nocat then |
if not args.en and not args.default and not args.nocat then |
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args = frame:getParent().args |
args = frame:getParent().args |
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Line 40: | Line 78: | ||
lang = args.lang |
lang = args.lang |
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args.lang = nil |
args.lang = nil |
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else -- |
else -- Get user's chosen language. |
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lang = frame:preprocess( |
lang = frame:preprocess("{{Int:Lang}}") |
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end |
end |
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--[==[ |
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if args.zh ~= '' and args['zh-hans'] == '' and args['zh-hant'] == '' then |
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else |
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end |
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--]==] |
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local str, language = p._langSwitch(args, lang) |
local str, language = p._langSwitch(args, lang) |
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return str -- |
return str -- Get the first value of the langSwitch, (the text) not the second (the language). |
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end |
end |
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Line 52: | Line 95: | ||
if mw.title.new(base .. '/' .. lng).exists then |
if mw.title.new(base .. '/' .. lng).exists then |
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if formatting == 'table' then |
if formatting == 'table' then |
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return {base .. '/' .. lng, lng} -- |
return {base .. '/' .. lng, lng} -- Returns name of the page + name of the language. |
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else |
else |
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return base .. '/' .. lng -- |
return base .. '/' .. lng -- Returns only the page. |
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end |
end |
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end |
end |
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Line 61: | Line 104: | ||
end |
end |
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--[==[ |
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⚫ | |||
Logic for [[Template:Autotranslate]]. |
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]==] |
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⚫ | |||
local args = frame.args |
local args = frame.args |
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if not args.lang or args.lang == '' then |
if not args.lang or args.lang == '' then |
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args.lang = frame:preprocess( |
args.lang = frame:preprocess("{{Int:Lang}}") -- Get user's chosen language. |
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end |
end |
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⚫ | |||
⚫ | |||
local base = args.base |
local base = args.base |
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if not base or base == '' then |
if not base or base == '' then |
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Line 73: | Line 118: | ||
end |
end |
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if string.sub(base, 2, 9) ~= 'emplate:' then |
if string.sub(base, 2, 9) ~= 'emplate:' then |
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base = 'Template:' .. base |
base = 'Template:' .. base -- Base provided without 'Template:' part. |
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end |
end |
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⚫ | |||
⚫ | |||
local page = p.fallbackpage(base, args.lang) -- |
local page = p.fallbackpage(base, args.lang) -- |
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if (not page and base ~= args.base) then |
if (not page and base ~= args.base) then |
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-- |
-- Try the original args.base string. This case is only needed if base is not in template namespace. |
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page = p.fallbackpage(args.base, args.lang) |
page = p.fallbackpage(args.base, args.lang) |
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end |
end |
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Line 85: | Line 129: | ||
return string.format('<strong class="error">no fallback page found for autotranslate (base=[[%s]], lang=%s)</strong>', args.base, args.lang) |
return string.format('<strong class="error">no fallback page found for autotranslate (base=[[%s]], lang=%s)</strong>', args.base, args.lang) |
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end |
end |
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⚫ | |||
⚫ | |||
local newargs = {} |
local newargs = {} |
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for field, value in pairs(args) do |
for field, value in pairs(args) do |
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Line 93: | Line 136: | ||
end |
end |
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end |
end |
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-- Transclude {{page |....}} with template arguments the same as the ones passed to {{autotranslate}} template. |
-- Transclude {{page |....}} with template arguments the same as the ones passed to {{autotranslate}} template. |
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return frame:expandTemplate{ title = page, args = newargs } |
return frame:expandTemplate{ title = page, args = newargs } |
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end |
end |
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--[==[ |
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⚫ | |||
Translate data stored in a module. |
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⚫ | |||
]==] |
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⚫ | |||
⚫ | |||
page = require('Module:' .. page) |
page = require('Module:' .. page) |
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end |
end |
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local val |
local val |
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if page[key] then |
if page[key] then |
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val = page[key] |
val = page[key] |
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elseif page.keys and page.keys[key] then-- |
elseif page.keys and page.keys[key] then -- Key 'keys" is an index of all keys, including redirects, see [[Module:i18n/datatype]]. |
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val = page.keys[key] |
val = page.keys[key] |
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end |
end |
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Line 117: | Line 161: | ||
function p.translatelua(frame) |
function p.translatelua(frame) |
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local lang = frame.args.lang |
local lang = frame.args.lang |
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local page = require('Module:' .. mw.text.trim(frame.args[1])) -- |
local page = require('Module:' .. mw.text.trim(frame.args[1])) -- Page should only contain a simple of translations. |
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if not lang or mw.text.trim(lang) == '' then |
if not lang or mw.text.trim(lang) == '' then |
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lang = frame:preprocess( |
lang = frame:preprocess("{{Int:Lang}}") |
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end |
end |
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if frame.args[2] then |
if frame.args[2] then |
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Line 127: | Line 171: | ||
end |
end |
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-- This test does not work ('Module:Fallback/tests/fallbacks' is missing) |
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function p.runTests() |
function p.runTests() |
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local toFallbackTest = require('Module:Fallback/tests/fallbacks') |
local toFallbackTest = require('Module:Fallback/tests/fallbacks') |
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local result = true |
local result = true |
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mw.log('Testing fallback chains') |
mw.log('Testing fallback chains') |
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for i, t in ipairs(toFallbackTest) do |
for i, t in ipairs(toFallbackTest) do |
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Line 139: | Line 183: | ||
result = result and ret |
result = result and ret |
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end |
end |
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return result |
return result |
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end |
end |
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--[==[ |
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⚫ | |||
]==] |
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function p.showTemplateArguments(frame) |
function p.showTemplateArguments(frame) |
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⚫ | |||
local str = '' |
local str = '' |
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for name, value in pairs( frame:getParent().args ) do |
for name, value in pairs( frame:getParent().args ) do |
Revision as of 18:01, 23 August 2021
Documentation for this module may be created at Module:Fallback/doc
local p = {}
-- List the full fallback chain from a language to default (usually English)
function p.fblist(lang)
local fbtable = mw.language.getFallbacksFor(lang)
table.insert(fbtable, 1, lang)
--[[
Take a translation from "Mediawiki:<Message-ID>/<language-code>" namespace
or from a loaded i18 resource bundle in MediaWiki for its UI messages (also
used by the "{{Int:<Message-ID>}}" parser function), before using the
provided default value. Requires args.message = 'Message-ID', instead of
args.message = 'actual translated message'.
--]]
table.insert(fbtable, 'message')
table.insert(fbtable, 'default')
return fbtable
end
--[==[
Return an error if there is not default and no English version, otherwise
return the message in the most appropriate, plus the lang code as a second value.
--]==]
function p._langSwitch(args, lang)
-- args: table of translations
if not args.en and not args.default and not args.message and args.nocat ~= '1' then
return error("langSwitch error: no default")
end
-- Get language (either stated one or user's default language).
if not lang then
return '<strong class="error">LangSwitch Error: no lang</strong>' -- must become proper error
end
-- Get the list of acceptable language (lang + those in lang's fallback chain) and check their content.
for _, code in ipairs(p.fblist(lang)) do
local msg = args[code]
if msg then
-- Trim the assigned message value before testing it.
msg = mw.text.trim(msg)
if msg ~= '' then
if code == 'message' then
-- If this is an UI message. See [[mw:Manual:Messages API]].
msg = mw.message.new(args.message):inLanguage(lang)
--[==[ If this message name does not exist, converting it to
a string would not return an actual message, but this name
within curved angle brackets U+29FC/U+29FD '⧼/⧽',
part of mathematical symbols). The UI message may also be
disabled administratively if it causes problems.
--]==]
if msg:exists() and not msg:isDisabled() then
--[==[FIXME: In which language is this message?
This may be in some fallback language and not lang.
Note that some UI messages may have placeholders like '%s'
but there's no way to replace them here by actual values.
--]==]
return tostring(msg), lang
end
elseif msg == '~' then
return nil, code
else
return msg, code
end
end
end
end
return nil
end
--[==[
Version to be used from wikitext.
--]==]
function p.langSwitch(frame)
local args = frame.args
-- If no expected args provided than check parent template/module args.
if not args.en and not args.default and not args.nocat then
args = frame:getParent().args
end
local lang
if args.lang and args.lang ~= '' then
lang = args.lang
args.lang = nil
else -- Get user's chosen language.
lang = frame:preprocess("{{Int:Lang}}")
end
--[==[
if args.zh ~= '' and args['zh-hans'] == '' and args['zh-hant'] == '' then
else
end
--]==]
local str, language = p._langSwitch(args, lang)
return str -- Get the first value of the langSwitch, (the text) not the second (the language).
end
function p.fallbackpage(base, lang, formatting)
local languages = p.fblist(lang)
for i, lng in ipairs(languages) do
if mw.title.new(base .. '/' .. lng).exists then
if formatting == 'table' then
return {base .. '/' .. lng, lng} -- Returns name of the page + name of the language.
else
return base .. '/' .. lng -- Returns only the page.
end
end
end
return base
end
--[==[
Logic for [[Template:Autotranslate]].
]==]
function p.autotranslate(frame)
local args = frame.args
if not args.lang or args.lang == '' then
args.lang = frame:preprocess("{{Int:Lang}}") -- Get user's chosen language.
end
-- Find base page.
local base = args.base
if not base or base == '' then
return '<strong class="error">Base page not provided for autotranslate</strong>'
end
if string.sub(base, 2, 9) ~= 'emplate:' then
base = 'Template:' .. base -- Base provided without 'Template:' part.
end
-- Find base template language subpage.
local page = p.fallbackpage(base, args.lang) --
if (not page and base ~= args.base) then
-- Try the original args.base string. This case is only needed if base is not in template namespace.
page = p.fallbackpage(args.base, args.lang)
end
if not page then
return string.format('<strong class="error">no fallback page found for autotranslate (base=[[%s]], lang=%s)</strong>', args.base, args.lang)
end
-- Repack args in a standard table.
local newargs = {}
for field, value in pairs(args) do
if field ~= 'base' then
newargs[field] = value
end
end
-- Transclude {{page |....}} with template arguments the same as the ones passed to {{autotranslate}} template.
return frame:expandTemplate{ title = page, args = newargs }
end
--[==[
Translate data stored in a module.
]==]
function p.translate(page, key, lang)
if type(page) == 'string' then -- If the requested translation table is not yet loaded.
page = require('Module:' .. page)
end
local val
if page[key] then
val = page[key]
elseif page.keys and page.keys[key] then -- Key 'keys" is an index of all keys, including redirects, see [[Module:i18n/datatype]].
val = page.keys[key]
end
if not val then
return '<' .. key .. '>'
end
return p._langSwitch(val, lang)
end
function p.translatelua(frame)
local lang = frame.args.lang
local page = require('Module:' .. mw.text.trim(frame.args[1])) -- Page should only contain a simple of translations.
if not lang or mw.text.trim(lang) == '' then
lang = frame:preprocess("{{Int:Lang}}")
end
if frame.args[2] then
page = page[mw.text.trim(frame.args[2])]
end
return p._langSwitch(page, lang)
end
-- This test does not work ('Module:Fallback/tests/fallbacks' is missing)
function p.runTests()
local toFallbackTest = require('Module:Fallback/tests/fallbacks')
local result = true
mw.log('Testing fallback chains')
for i, t in ipairs(toFallbackTest) do
local fbtbl = table.concat(p.fblist(t.initial), ', ')
local expected = table.concat(t.expected, ', ')
local ret = (fbtbl == expected)
mw.log(i, ret and 'passed' or 'FAILED', t.initial, (not ret) and ('FAILED\nis >>' .. fbtbl .. '<<\nbut should be >>' .. expected .. '<<\n') or '')
result = result and ret
end
return result
end
--[==[
List all input arguments of the template that calls "{{#invoke:Fallback|showTemplateArguments}}"
]==]
function p.showTemplateArguments(frame)
local str = ''
for name, value in pairs( frame:getParent().args ) do
if str == '' then
str = string.format('%s=%s', name, value) -- argument #1
else
str = string.format('%s, %s=%s', str, name, value) -- the rest
end
end
return str
end
return p