require('strict')
local m_data = mw.loadData("Module:Language/data")
local langData = m_data.languages or m_data  
local p = {}  
local function ifNotEmpty(value)
if value == "" then
return nil
else
return value
end
end  
local function makeLinkedName(languageCode)
local data = langData[languageCode]
local article = data["article"]
local name = data["Wikipedia_name"] or data["name"]
return "" .. name .. ":&nbsp;"
end  
local function makeEntryName(word, languageCode)
local data = langData[languageCode]
local ugsub = mw.ustring.gsub
word = tostring(word)
if word == nil then
error("The function makeEntryName requires a string argument")
elseif word == "" then
return ""
else
-- Remove bold and italics, so that words that contain bolding or emphasis can be linked without piping.
word = word:gsub("\'\'\'", "")
word = word:gsub("\'\'", "")
if data == nil then
return word
else
local replacements = data and data["replacements"]
if replacements == nil then
return word
else
-- Decompose so that the diacritics of characters such
-- as á can be removed in one go.
-- No need to compose at the end, because the MediaWiki software
-- will handle that.
if replacements.decompose then
word = mw.ustring.toNFD(word)
for i, from in ipairs(replacements.from) do
word = ugsub(
word,
from,
replacements.to and replacements.to[i] or "")
end
else
for regex, replacement in pairs(replacements) do
word = ugsub(word, regex, replacement)
end
end
return word
end
end
end
end  
p.makeEntryName = makeEntryName  
local function fixScriptCode(firstLetter, threeLetters)
return string.upper(firstLetter) .. string.lower(threeLetters)
end  
local function getCodes(codes, text)
local languageCode, scriptCode, invalidCode
local errorText
if codes == nil or codes == "" then
errorText = 'no language or script code provided'
elseif codes:find("^%a%a%a?$") or codes:find("^%a%a%a?%-%a%a%a%a$") then
-- A three- or two-letter lowercase sequence at beginning of first parameter
languageCode =
codes:find("^%a%a%a?") and (
codes:match("^(%l%l%l?)")
or codes:match("^(%a%a%a?)")
:gsub("(%a%a%a?)", string.lower, 1)
-- One uppercase and three lowercase letters at the end of the first parameter
scriptCode =
codes:find("%a%a%a%a$") and (
codes:match("(%u%l%l%l)$")
or gsub(
codes:match("(%a%a%a%a)$"),
"(%a)(%a%a%a)",
fixScriptCode,
1
elseif codes:find("^%a%a%a?%-%a%a%a?$")
or codes:find("^%a%a%a%-%a%a%a%-%a%a%a$") then
languageCode = codes  
-- Private-use subtag: x followed by one or more sequences of 1-8 lowercase
-- letters separated by hyphens. This only allows for one sequence, as it is
-- needed for proto-languages such as ine-x-proto (Proto-Indo-European).
elseif codes:find("^%a%a%a?%-x%-%a%a?%a?%a?%a?%a?%a?%a?$") then
languageCode, scriptCode =
codes:match("^(%a%a%a%-x%-%a%a?%a?%a?%a?%a?%a?%a?)%-?(.*)$")
if not languageCode then
errorText = '<code>'..codes..'</code> is not a valid language or script code.'
elseif scriptCode ~= "" and not scriptCode:find("%a%a%a%a") then
errorText = '<code>'..scriptCode..'</code> is not a valid script code.'
else
scriptCode = scriptCode:gsub(
"(%a)(%a%a%a)",
fixScriptCode,
1
end
elseif codes:find("^%a%a%a?") then
languageCode, invalidCode = codes:match("^(%a%a%a?)%-?(.*)")
languageCode = string.lower(languageCode)
errorText = '<code>'..invalidCode..'</code> is not a valid script code.'
elseif codes:find("%-?%a%a%a%a$") then
invalidCode, scriptCode = codes:match("(.*)%-?(%a%a%a%a)$")
scriptCode = gsub(
scriptCode,
"(%a)(%a%a%a)",
fixScriptCode
errorText = '<code>'..invalidCode..'</code> is not a valid language code.'
else
errorText = '<code>'..codes..'</code> is not a valid language or script code.'
end
if not scriptCode or scriptCode == "" then
scriptCode = require("Module:Unicode data").is_Latin(text) and "Latn" or "unknown"
end
if errorText then
errorText = ' <span>[' .. errorText .. ']</span>'
else
errorText = ""
end
languageCode = m_data.redirects[languageCode] or languageCode
return languageCode, scriptCode, errorText
end  
local function tag(text, languageCode, script, italics)
local data = langData[languageCode]
-- Use Wikipedia code if it has been given: for instance,
-- Proto-Indo-European has the Wiktionary code "ine-pro" but the Wikipedia
-- code "ine-x-proto".
languageCode = data and data.Wikipedia_code or languageCode  
local italicize = script == "Latn" and italics  
if not text then text = "[text?]" end  
local textDirectionMarkers = { "", "", "" }
if data and data["direction"] == "rtl" then
textDirectionMarkers = { ' dir="rtl"', '&rlm;', '&lrm;' }
end  
local out = { textDirectionMarkers[2] }
if italicize then
table.insert(out, "<i lang=\"" .. languageCode .. "\"" .. textDirectionMarkers[1] .. ">" .. text .. "</i>")
else
table.insert(out, "<span lang=\"" .. languageCode .. "\"" .. textDirectionMarkers[1] .. ">" .. text .. "</span>")
end
table.insert(out, textDirectionMarkers[3])  
return table.concat(out)
end  
function p.lang
local parent = :getParent
local args = parent.args[1] and parent.args or .args  
local codes = args[1] and mw.text.trim(args[1])
local text = args[2] or error("Provide text in the second parameter")  
local languageCode, scriptCode, errorText = getCodes(codes, text)  
local italics = args.italics or args.i or args.italic
italics = not (italics == "n" or italics == "-" or italics == "no")  
return tag(text, languageCode, scriptCode, italics) .. errorText
end  
local function linkToWiktionary(entry, linkText, languageCode)
local data = langData[languageCode]
local name
if languageCode then
if data and data.name then
name = data.name
else
-- On other languages' wikis, use mw.getContentLanguage:getCode,
-- or replace 'en' with that wiki's language code.
name = mw.language.fetchLanguageName(languageCode, 'en')
if name == "" then
error("Name for the language code " .. ("%q"):format(languageCode or nil)
.. " could not be retrieved with mw.language.fetchLanguageName, "
.. "so it should be added to Module:Language/data")
end
end
if entry:sub(1, 1) == "*" then
if name ~= "" then
entry = "Reconstruction:" .. name .. "/" .. entry:sub(2)
else
error("Language name is empty")
end
elseif data and data.type == "reconstructed" then
mw.log("Reconstructed language without asterisk:", languageCode, name, entry)
local = mw.getCurrentFrame
-- Track reconstructed entries with no asterisk by transcluding
-- a nonexistent template. This technique is used in Wiktionary:
-- see wikt:Module:debug.
-- Special:WhatLinksHere/tracking/wikt-lang/reconstructed with no asterisk
pcall(.expandTemplate, ,
{ title = 'tracking/wikt-lang/reconstructed with no asterisk' })
if name ~= "" then
entry = "Reconstruction:" .. name .. "/" .. entry
else
error("Language name is empty")
end
elseif data and data.type == "appendix" then
if name ~= "" then
entry = "Appendix:" .. name .. "/" .. entry
else
error("Language name is empty")
end
end
if entry and linkText then
return "" .. linkText .. ""
else
error("linkToWiktionary needs a Wiktionary entry or link text, or both")
end
else
return "" .. linkText .. ""
end
end  
function p.wiktlang
local parent = :getParent
local args = parent.args[1] and parent.args or .args  
local codes = args[1] and mw.text.trim(args[1])
local word1 = ifNotEmpty(args[2])
local word2 = ifNotEmpty(args[3])  
if not args[2] then
error("Parameter 2 is required")
end  
local languageCode, scriptCode, errorText = getCodes(codes, word2 or word1)  
local italics = args.italics or args.i or args.italic
italics = not (italics == "n" or italics == "-" or italics == "no")  
local entry, linkText
if word2 and word1 then
entry = makeEntryName(word1, languageCode)
linkText = word2
elseif word1 then
entry = makeEntryName(word1, languageCode)
linkText = word1
end  
local out
if languageCode and entry and linkText then
out = tag(linkToWiktionary(entry, linkText, languageCode), languageCode, scriptCode, italics)
elseif entry and linkText then
out = linkToWiktionary(entry, linkText)
else
out = '<span>[text?]</span>'
end  
if out and errorText then
return out .. errorText
else