Colani: 1 versie geïmporteerd: Category:Commons templates-i18n

2024-07-29T10:00:54Z

1 versie geïmporteerd: Category:Commons templates-i18n

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--[==[
This module implements [[Template:Dir]].

Enter this to run tests in the Lua console:
=getmetatable(p).quickTests()

--]==]
local rtlOverrides = require('Module:Dir/RTL overrides')
local p = {}

local function trim(s)
if s and s ~= '' then s = tostring(s):match('^%s*(.-)%s*$') end
if s == '' then return nil end
return s
end

function p.rtlLangs(isRTL)
if isRTL == nil then isRTL = true end
return rtlOverrides[isRTL] or {}
end

function p.isRTL(code)
if type(code) ~= 'string' then return nil end
local v = rtlOverrides[code] -- very fast and not limited in the number of supported languages
if v ~= nil then return v end -- return it if mapped, otherwise use MediaWiki library:
local success, ret = pcall(function ()
return mw.language.new(code):isRTL() -- expensive and limited to 20 languages per MediaWiki instance
end)
return success and ret
end

function p.select(code, rtl, ltr)
if p.isRTL(code) then
return rtl
else
return ltr
end
end

-- Used via a template {{Dir|language-code|wikitext if rtl|wikitext if ltr}}
-- which just calls {{#invoke:Dir|main}}, the 3 parameters are automatically trimmed:
-- Parameter 1 takes the default value from {{Int:Lang}} if it's empty or not specified.
-- Parameter 2 can be named rtl, may be explicitly empty, otherwise takes the default value 'rtl' only if it's not specified.
-- Parameter 3 can be named ltr, may be explicitly empty, otherwise takes the default value 'ltr' only if it's not specified.
function p.main(frame)
local args = frame:getParent().args -- Parameters used to transclude Template:Dir
local code = trim(args[1]) or frame:callParserFunction('Int', 'Lang')
local rtl = trim(args.rtl or args[2] or 'rtl')
local ltr = trim(args.ltr or args[3] or 'ltr')
return p.select(code, rtl, ltr)
end

setmetatable(p, { quickTests = function ()
local rtlLangs = p.rtlLangs(true)
local ltrLangs = p.rtlLangs(false)

-- Basic check of data format
local function checkLangs(name, langs)
for k, lang in pairs(langs) do
assert(type(k) == 'number' and k == math.floor(k)
and type(lang) == 'string' and #lang >= 2 and #lang <= 16
and lang:find('^[a-z][%-0-9a-z]*[0-9a-z]$') == 1,
": Invalid sequence of language codes, " .. name .. "['" .. k .. "'] = '" .. lang .. "'")
end
return true
end
local ok, msg
ok, msg = pcall(checkLangs, 'rtlLangs', rtlLangs)
if not ok then return false, msg end
ok, msg = pcall(checkLangs, 'ltrLangs', ltrLangs)
if not ok then return false, msg end

-- Build inverse maps of languages having each direction
local isrtl, isltr = {}, {}
for _, lang in ipairs(rtlLangs) do isrtl[lang] = true end
for _, lang in ipairs(ltrLangs) do isltr[lang] = true end
-- Check conflicts using the two inverse maps
for _, lang in ipairs(rtlLangs) do
if isltr[lang] then return false, ": Direction conflict for '" .. lang .. "'" end
end
for _, lang in ipairs(ltrLangs) do
if isrtl[lang] then return false, ": Direction conflict for '" .. lang .. "'" end
end

-- Log missing languages (allows filling the tables above) according to MediaWiki internal data
local knownLangs, isKnownLang = mw.language.fetchLanguageNames(), {}
for lang, _ in pairs(knownLangs) do
isKnownLang[lang] = true
if rtlOverrides[lang] == nil then -- only if we still don't have data for this language
-- Note: we cannot check more than 20 languages at once, then MediaWiki raises an error.
-- So this test only runs on the Lua console, where you can update the tables at top.
-- This also means we cannot compare what MediaWiki returns with the direction we map here for all languages.
ok, value = pcall(function() return tostring(mw.language.new(lang):isRTL()) end)
mw.log("Warning: missing direction for language '" .. lang .. "', MediaWiki returns '" .. value .. "'")
end
end

-- utility: reverse order iterator on sequences
local function revipairs(t)
return function(t, i)
i = i - 1
local v = t[i]
if v == nil then return nil end
return i, v
end, t, #t + 1
end
-- Sort and deduplicate language code values (by scanning backward) for data cleanup
-- Also log languages having a direction mapping in this module but still not known by MediaWiki
table.sort(rtlLangs)
table.sort(ltrLangs)
for i, lang in revipairs(rtlLangs) do
if rtlLangs[i - 1] == rtlLangs[i] then table.remove(rtlLangs, i) end
if isKnownLang[lang] == nil then
mw.log("RTL language '" .. lang .. "' still not known by Mediawiki (could be a missing alias or variant)")
end
end
for i, lang in revipairs(ltrLangs) do
if ltrLangs[i - 1] == ltrLangs[i] then table.remove(ltrLangs, i) end
if isKnownLang[lang] == nil then
mw.log("LTR language '" .. lang .. "' still not known by Mediawiki (could be a missing alias or variant)")
end
end

-- Final presentation of current lists, sorted and deduplicated
mw.log("----")
mw.log("local rtlLangs = { '" .. table.concat(rtlLangs, "', '") .. "' }")
mw.log("local ltrLangs = { '" .. table.concat(ltrLangs, "', '") .. "' }")
return true
end })

return p

Module:Dir - Bewerkingsoverzicht

Colani: 1 versie geïmporteerd: Category:Commons templates-i18n