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Module:Versions

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Revision as of 22:48, 27 November 2022 by Lethosor (talk | contribs) (change to ordered table to allow sorting namespaces, add getNamespaceByIndex())
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Version/namespace helpers.

For use in templates, see module:versions/parserFunctions


local env = {}

local namespaces = {
	{
		-- namespace is the canonical namespace name (not an alias), e.g. the list at Special:AllPages
		namespace = '23a',
		-- versions are sorted in ascending order 
		versions = {'0.21', '0.22', '0.23'},
	},
	{
		namespace = '40d',
		versions = {'0.27', '0.28'},
	},
	{
		namespace = 'v0.31',
		versions = {'0.31'},
	},
	{
		namespace = 'v0.34',
		versions = {'0.34'},
	},
	{
		namespace = 'DF2014',
		versions = {'0.40', '0.42', '0.43', '0.44', '0.47'},
	},
}
local version_to_namespace = {}
for i, data in pairs(namespaces) do
	data.index = i
	data.canonical_version = data.versions[#data.versions]
	if not data.category_prefix then
		data.category_prefix = data.namespace
	end
	for _, version in pairs(data.versions) do
		version_to_namespace[version] = data.namespace
	end
end

function env.versionToNamespace(version, default)
	local parts = mw.text.split(version:gsub('^v', ''), '.', true)
	local key = ''
	while #parts > 0 do
		if key ~= '' then
			key = key .. '.'
		end
		key = key .. table.remove(parts, 1)
		if version_to_namespace[key] then
			return version_to_namespace[key]
		end
	end
	if default then
		return default
	end
	error('Unknown version: ' .. version)
end

function env.getNamespaceByIndex(i, default)
	local data = namespaces[tonumber(i)]
	if data then
		return data.namespace
	elseif default then
		return default
	else
		error('Unknown namespace index: ' .. tostring(i))
	end
end

return env