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| local p = {}
| | {{#ifexist: Template:{{{1|}}}/{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}} | {{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}} | {{#ifexist: Template:{{{1|}}}/{{GetFallback|{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}}}} | {{GetFallback|{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}}}} | {{#ifexist: Template:{{{1|}}}/{{GetFallback2|{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}}}} | {{GetFallback2|{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}}}} | {{CONTENTLANGUAGE}} }} }} }}<noinclude>{{documentation}}</noinclude> |
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| local langlist = require('Module:Fallbacklist')
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| function p.fblist(lang) -- list the full fallback chain from a language to en
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| local fbtable = p.fallbackloop{ lang:lower() }
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| table.insert(fbtable, 'default')
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| table.insert(fbtable, 'en')
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| return fbtable
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| end
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| function _inArray(x, t)
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| for i, v in ipairs(t) do
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| if v == x then return i end
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| end
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| return -1
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| end
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| function p.fallbackloop(fbtable) --list of fallback languages in string format (more convenient than tables)
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| local changes = false
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| for i, j in ipairs(fbtable) do
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| local seq = langlist[j]
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| if seq then
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| for k, l in ipairs(seq) do
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| if _inArray(l, fbtable) == -1 then
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| table.insert(fbtable, l)
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| changes = true
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| end
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| end
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| end
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| end
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| if changes then
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| return p.fallbackloop(fbtable)
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| end
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| return fbtable
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| end
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| function p._langSwitch(args, lang) -- args: table of translations
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| -- Return error if there is not default and no english version
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| if not args.en and not args.default and args.nocat ~= '1' then
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| return '<strong class="error">LangSwitch Error: no default</strong>[[Category:LangSwitch template without default version]]'
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| end
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| -- get language (either stated one or user's default language)
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| if not lang then
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| return '<strong class="error">LangSwitch Error: no lang</strong>' -- must become proper error
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| end
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| -- get the list of accpetable language (lang + those in lang's fallback chain) and check their content
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| local parselist = p.fblist(lang)
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| for i, k in ipairs(parselist) do
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| if args[k] == '~' then return '' end
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| if args[k] and args[k] ~= '' then return args[k] end
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| end
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| end
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| function p.langSwitch(frame) -- version to be used from wikitext
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| args = frame.args
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| -- if no expected args provided than check parent template/module args
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| if args.en==nil and args.default==nil and args.nocat==nil then
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| args = mw.getCurrentFrame():getParent().args
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| end
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| if args.lang and args.lang ~= '' then
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| lang = args.lang
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| args.lang = nil
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| else -- get user's chosen language
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| lang = frame:preprocess( "{{int:lang}}" )
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| end
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| return p._langSwitch(args, lang)
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| end
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| function p.fallbackpage(base, lang, formatting)
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| local languages = p.fblist(lang)
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| for i, lng in ipairs(languages) do
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| if mw.title.new(base .. '/' .. lng).exists then
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| if formatting == 'table' then
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| return {base .. '/' .. lng, lng} -- returns name of the page + name of the language
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| else
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| return base .. '/' .. lng -- returns only the page
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| end
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| end
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| end
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| end
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| function p.autotranslate(frame) -- logic for [[template:Autotranslate]]
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| local args = frame.args
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| if not args.lang or args.lang == '' then
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| args.lang = frame:preprocess( "{{int:lang}}" ) -- get user's chosen language
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| end
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|
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| -- find base page
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| local base = args.base
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| if not base or base == '' then
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| return '<strong class="error">Base page not provided for autotranslate</strong>'
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| end
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| if string.sub(base,2,9) ~= 'emplate:' then
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| base = 'Template:' .. base -- base provided without 'Template:' part
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| end
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|
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| -- find base template language subpage
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| local page = p.fallbackpage(base, args.lang) --
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| 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)
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| end
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| if not page then
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| 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
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|
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| -- repack args in a standard table
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| newargs = {}
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| for field, value in pairs(args) do
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| if field ~= 'base' then
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| newargs[field] = value;
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| end
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| end
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|
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| -- 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 }
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| end
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| function p.translatelua(frame)
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| local lang = frame.args.lang
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| 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
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| lang = frame:preprocess( "{{int:lang}}" )
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| end
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| if frame.args[2] then
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| page = page[mw.text.trim(frame.args[2])]
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| end
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| return p._langSwitch(page, lang)
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| end
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| function p.runTests()
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| local toFallbackTest = require('Module:Fallback/tests/fallbacks')
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| local result = true
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| mw.log('Testing fallback chains')
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| for i, t in ipairs(toFallbackTest) do
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| local fbtbl = table.concat(p.fblist(t.initial), ', ')
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| local expected = table.concat(t.expected, ', ')
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| local ret = (fbtbl == expected)
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| mw.log(i, ret and 'passed' or 'FAILED', t.initial, (not ret) and ('FAILED\nis >>' .. fbtbl .. '<<\nbut should be >>' .. expected .. '<<\n') or '')
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| result = result and ret
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| end
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|
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| return result
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| end
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| function p.showTemplateArguments(frame)
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| -- list all input arguments of the template that calls "{{#invoke:Fallback|showTemplateArguments}}"
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| local str = ''
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| for name, value in pairs( mw.getCurrentFrame():getParent().args ) do
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| if str=='' then
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| str = string.format('%s=%s', name, value) -- argument #1
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| else
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| str = string.format('%s, %s=%s', str, name, value) -- the rest
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| end
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| end
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| return str
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| end
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| return p
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en{{#invoke:documentation|main|_content={{ {{#invoke:documentation|contentTitle}}}}}}
