Module:IPA/category documentation

require('strict')

local p = {}
local lects = mw.loadData('Module:IPA/data/export')
local mLang = require('Module:Lang')

function p.lookup_name( name )
	for _, lect in ipairs(lects) do
		if (lect.name or lect.extName) == name then
			return lect.code, lect, lect.parent
		end
	end

	local code = mLang._tag_from_name({ name })
	if not code:find('^<span') then
		local regionCode = code:match('-(.+)')
		if regionCode and regionCode:sub(1, 2) ~= 'x-' then
			code = code:sub(1, #code - #regionCode) .. regionCode:upper()
		end
		for _, lect in ipairs(lects) do
			if lect.code == code then
				return code, lect, lect.parent
			end
		end
		return code, nil, nil
	end

	return nil, nil, nil
end

function p.main(frame)
	local args = {}
	for k, v in pairs(frame:getParent().args) do
		if v ~= '' then
			args[k] = v
		end
	end
	local name = mw.title.getCurrentTitle().text:sub(12, -5)
	local lect, parent
	local code = args.code
	if not code then
		code, lect, parent = p.lookup_name( name )
	end
	if not code and args.container ~= 'yes' then
		return frame:expandTemplate({ title = 'Hidden category' }) .. string.format('<span class="error" style="font-size: 100%%; font-style: normal;">Error: language code for "%s" not found. Please see [[Template talk:IPA]] for assistance.</span>[[Category:IPA template errors]]', name)
	end
	local isCollective = name:find(' languages$') and true
	local link = lect and (lect.link or lect.generatedLink or lect.extLink)
		or parent and (parent.link or parent.generatedLink or parent.extLink)
		or isCollective and name
		or name .. ' language'
	if not mw.title.new(link).exists then
		link = mLang._name_from_tag({ code, link = 'yes' })
			:match('^%[%[([^|%]]+)')
	end
	local key = lect and lect.key or parent and parent.key
	local langCat, langCatCount
	if code then
		langCat = mLang._category_from_tag({ code })
		if langCat:find('^<span') then
			langCat = nil
		else
			langCatCount = mw.site.stats.pagesInCategory(langCat:sub(10), 'pages')
		end
	end
	local parentName = args.parent
		or parent and (parent.name or mLang._name_from_tag({ parent.code, raw = 'yes' }))
		or code and code:find('-') and mLang._name_from_tag({ code:gsub('%-.*', ''), raw = 'yes' })
	if parentName == name or parentName and parentName:find('^<span') then
		parentName = nil
	end
	local cat = args.cat ~= 'no' and (
		parentName and 'Pages with ' .. parentName .. ' IPA' or 'Pages with IPA'
	)
	local sortkey = args.sort or name:find('^[ %l]+$') and ' ' .. name or name
	local ret = {}
	table.insert(ret, frame:expandTemplate({ title = 'Tracking category' }))
	table.insert(ret, string.format(
		'The following pages contain [[International Phonetic Alphabet|IPA]] transcriptions of [[%s|%s]] using %s. This category should never be added manually.',
		link,
		name,
		code
			and string.format('<code>{{[[Template:IPA|IPA]]|%s|...}}</code>', code)
			or '[[Template:IPA]]'
	))
	if key then
		table.insert(ret, string.format(
			'By default, the transcriptions are linked to the [[%s]] key. Transcriptions that do not adhere to the conventions of the key must have <code>|generic=yes</code>.',
			key
		))
	end
	if isCollective or args.collective == 'yes' then
		table.insert(ret, string.format(
			'%s a language collective. Please replace the code%s with those of more specific languages where possible.',
			isCollective and string.format('The %s are', name) or string.format('%s is', name),
			code and ' (' .. code .. ')' or ''
		))
	end
	if args.content then
		table.insert(ret, args.content)
	end
	if langCat and langCatCount ~= 0 then
		table.insert(ret, string.format(
			'==See also==\n*[[:%s]] (%s)',
			langCat,
			mw.language.new('en'):formatNum(langCatCount)
		))
	end
	if cat then
		table.insert(ret, string.format('[[Category:%s|%s]]', cat, sortkey))
	end
	return table.concat(ret, '\n\n')
end

return p
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