Template:Fallback: Difference between revisions
Content deleted Content added
trim parameters |
Leonidlednev (talk | contribs) m rvv Tag: Undo |
||
(46 intermediate revisions by 11 users not shown) | |||
Line 1: | Line 1: | ||
{{#ifexist: Template:{{{1|}}}/{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}} |{{#if: {{{2|}}} |{{{2}}}|{{int:Lang}}}}|{{CONTENTLANGUAGE}}}}<noinclude> |
|||
local p = {} |
|||
{{documentation}} |
|||
local langlist = require('Module:Fallbacklist') |
|||
</noinclude> |
|||
function p.fblist(lang) -- list the full fallback chain from a language to en |
|||
local fbstr = p.fallbackloop(' ' .. lang) |
|||
fbstr = fbstr .. ' ' .. 'default' |
|||
fbstr = fbstr .. ' ' .. 'en' |
|||
return mw.text.split(fbstr, " ") |
|||
end |
|||
function p.fallbackloop(init) --list of fallback languages in string format (more convenient than tables) |
|||
local new = init |
|||
for i, j in pairs(mw.text.split(init, " ")) do |
|||
if langlist[j] then |
|||
for k, l in pairs(langlist[j]) do |
|||
if not string.find(new, ' ' .. l, 1, true) then |
|||
new = new .. ' ' .. l |
|||
end |
|||
end |
|||
end |
|||
end |
|||
if new ~= init then |
|||
return p.fallbackloop(new) |
|||
end |
|||
return new |
|||
end |
|||
function p.langSwitch(args, lang) -- args: table of translations |
|||
-- Return error if there is not default and no english version |
|||
if not args.en and not args.default and args.nocat ~= '1' then |
|||
return 'LangSwitch error: no default [[Category:LangSwitch template without default version]]' |
|||
end |
|||
-- get language (either stated one or user's default language) |
|||
if not lang then |
|||
return "langSwitch error: no lang" -- must become proper error |
|||
end |
|||
-- get lhe list of accpetable language (lang + those in lang's fallback chain) and check their content |
|||
local parselist = p.fblist(lang) |
|||
for j, k in pairs(parselist) do |
|||
if args[k] == '~' then return '' end |
|||
if args[k] and args[k] ~= '' then return args[k] end |
|||
end |
|||
end |
|||
function p.langSwitchfromWiki(frame) -- version to be used from wikitext |
|||
args = mw.getCurrentFrame():getParent().args |
|||
if args.lang and args.lang ~= '' then |
|||
lang = args.lang |
|||
args.lang = nil |
|||
else |
|||
lang = frame:preprocess( "{{int:lang}}" ) |
|||
end |
|||
return p.langSwitch(args, lang) |
|||
end |
|||
function p.fallbackpage(base, lang) |
|||
local languages = p.fblist(lang) |
|||
for i, j in pairs(languages) do |
|||
if p.pageexist( base .. '/' .. j) then |
|||
return base .. '/' .. j |
|||
end |
|||
end |
|||
end |
|||
function p.pageexist(page) -- isolated function to deal with old-style #ifexist parser without Lua equivalent |
|||
local frame = mw.getCurrentFrame() |
|||
local exist = frame:callParserFunction{name = '#ifexist', args= {[1] = page, [2] = "true"} } |
|||
if exist == "true" then return true else return false end |
|||
end |
|||
function p.autotranslate(frame) -- logic for template:Autotranslate |
|||
local args = mw.getCurrentFrame():getParent().args |
|||
for i, j in pairs(args) do j = mw.text.trim(j) end |
|||
if not args.lang or args.lang == '' then |
|||
args.lang = frame:preprocess( "{{int:lang}}" ) |
|||
end |
|||
local page = p.fallbackpage('Template:' .. args.base, args.lang) |
|||
if not page then return "no fallback page found for autotranslate" end |
|||
return frame:expandTemplate{ title = page, args = args } |
|||
end |
|||
return p |
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 |