Template:Fallback: Difference between revisions
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{{#ifexist: Template:{{{1|}}}/{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}} |{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}}|{{CONTENTLANGUAGE}}}}<noinclude> |
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local p = {} |
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{{documentation}} |
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local langlist = require('Module:Fallbacklist') |
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</noinclude> |
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function p.fblist(lang) -- list the full fallback chain from a language to en |
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local fbstr = p.fallbackloop(' ' .. lang) |
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fbstr = fbstr .. ' ' .. 'default' |
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fbstr = fbstr .. ' ' .. 'en' |
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return mw.text.split(fbstr, " ") |
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end |
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function p.fallbackloop(init) --list of fallback languages in string format (more convenient than tables) |
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local new = init |
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for i, j in pairs(mw.text.split(init, " ")) do |
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if langlist[j] then |
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for k, l in pairs(langlist[j]) do |
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if not string.find(new, ' ' .. l, 1, true) then |
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new = new .. ' ' .. l |
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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 new ~= init then |
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return p.fallbackloop(new) |
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end |
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return new |
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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 'LangSwitch error: no default [[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 "langSwitch error: no lang" -- must become proper error |
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end |
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-- get lhe 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 j, k in pairs(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.langSwitchfromWiki(frame) -- version to be used from wikitext |
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args = mw.getCurrentFrame():getParent().args |
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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 |
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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, j in pairs(languages) do |
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if mw.title.new(base .. '/' .. j).exists then |
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if formatting == 'table' then |
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return {base .. '/' .. j, j} -- returns name of the page + name of the language |
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else |
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return base .. '/' .. j -- 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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local maintext = '' |
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local errormessage = '' |
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if not args.lang or args.lang == '' then |
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args.lang = frame:preprocess( "{{int:lang}}" ) |
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end |
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local page = p.fallbackpage('Template:' .. args.base, args.lang) |
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if not page then return "no fallback page found for autotranslate" end |
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newargs = {} |
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for i, j in pairs(args) do |
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if type(i) == 'number' then |
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table.insert(newargs, j) |
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elseif i ~= 'base' and i ~= 'lang' then |
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errormessage = errormessage .. '[[Category:Pages with incorrect template usage/Autotranslate]]' |
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end |
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end |
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local maintext = frame:expandTemplate{ title = page, args = newargs } |
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return maintext .. errormessage |
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end |
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return p |
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Latest revision as of 23:55, 18 June 2023
en
This template was imported from commons:Template:Fallback without the here unusable documentation.
Use localised subpage for the user language with fallback to {{CONTENTLANGUAGE}}
| Parameter | Description | Type | Status | |
|---|---|---|---|---|
| page | 1 | Template name | Page name | required |
| lang | 2 | override user language on localised page
| String | optional |