local export = {}
-- Implementation of getOtherNames() for languages, etymology languages,
-- families and scripts. If `onlyOtherNames` is passed in, only return
-- the names in the `otherNames` field, otherwise combine `otherNames`,
-- `aliases` and `varieties`.
function export.getOtherNames(self, onlyOtherNames)
local data
if self._extraData then
data = self._extraData
elseif self._rawData then
data = self._rawData
else
-- Called from [[Module:list of languages]]; fields already available directly.
data = self
end
if onlyOtherNames then
return data.otherNames or {}
end
-- Combine otherNames, aliases and varieties. First try to optimize and not create any
-- new memory. This is possible if exactly one of the three exist, and if it's `varieties`,
-- there are no nested lists in `varieties`.
if data.otherNames and not data.aliases and not data.varieties then
return data.otherNames
elseif data.aliases and not data.otherNames and not data.varieties then
return data.aliases
elseif data.varieties and not data.otherNames and not data.aliases then
local saw_table = false
for _, name in ipairs(data.varieties) do
if type(name) == "table" then
saw_table = true
break
end
end
if not saw_table then
return data.varieties
end
end
-- Have to do it the "hard way".
local ret = {}
if data.otherNames then
for _, name in ipairs(data.otherNames) do
table.insert(ret, name)
end
end
if data.aliases then
for _, name in ipairs(data.aliases) do
table.insert(ret, name)
end
end
if data.varieties then
for _, name in ipairs(data.varieties) do
if type(name) == "table" then
for _, n in ipairs(name) do
table.insert(ret, n)
end
else
table.insert(ret, name)
end
end
end
return ret
end
-- Implementation of getVarieties() for languages, etymology languages,
-- families and scripts. If `flatten` is passed in, flatten down to a
-- list of strings; otherwise, keep the structure.
function export.getVarieties(self, flatten)
local data
if self._extraData then
data = self._extraData
elseif self._rawData then
data = self._rawData
else
-- Called from [[Module:list of languages]]; fields already available directly.
data = self
end
if data.varieties then
-- If flattening not requested, just return them.
if not flatten then
return data.varieties
end
-- Check if no nested table; if so, just return the result.
local saw_table = false
for _, name in ipairs(data.varieties) do
if type(name) == "table" then
saw_table = true
break
end
end
if not saw_table then
return data.varieties
end
-- At this point, we need to flatten the varieties.
local ret = {}
for _, name in ipairs(data.varieties) do
if type(name) == "table" then
for _, n in ipairs(name) do
table.insert(ret, n)
end
else
table.insert(ret, name)
end
end
return ret
else
return {}
end
end
-- Implementation of template-callable getByCode() function for languages,
-- etymology languages, families and scripts. `item` is the language,
-- family or script in question; `args` is the arguments passed in by the
-- module invocation; `extra_processing`, if specified, is a function of
-- one argument (the requested property) and should return the value to
-- be returned to the caller, or nil if the property isn't recognized.
-- `extra_processing` is called after special-cased properties are handled
-- and before general-purpose processing code that works for all string
-- properties.
function export.templateGetByCode(args, extra_processing)
-- The item that the caller wanted to look up.
local item, itemname, list = args[1], args[2]
if itemname == "getOtherNames" then
list = item:getOtherNames()
elseif itemname == "getOnlyOtherNames" then
list = item:getOtherNames(true)
elseif itemname == "getAliases" then
list = item:getAliases()
elseif itemname == "getVarieties" then
list = item:getVarieties(true)
end
if list then
local index = args[3]; if index == "" then index = nil end
index = tonumber(index or error("Numeric index of the desired item in the list (parameter 3) has not been specified."))
return list[index] or ""
end
if itemname == "getFamily" and item.getFamily then
return item:getFamily():getCode()
end
if extra_processing then
local retval = extra_processing(itemname)
if retval then
return retval
end
end
if item[itemname] then
local ret = item[itemname](item)
if type(ret) == "string" then
return ret
else
error("The function \"" .. itemname .. "\" did not return a string value.")
end
end
error("Requested invalid item name \"" .. itemname .. "\".")
end
return export
