Module:ISO 639 name/ISO 639 name to code/make
require('strict');
local temp = {};
--[[--------------------------< A D D _ L A N G >--------------------------------------------------------------
temp table is a table of tables where the key is the language name and the value is a table listing the ISO 639
codes associated with that language name.
This function adds language name (as index) and its code (as a table element) using an appropriate index number.
is the associated ISO 639 code from the source data
]]
local function lang_add (lang, code, part)
part = ({ -- convert string
['1']=1, ['2']=2, ['2B']=3, ['3']=4, ['5']=5, -- for the base ISO 639 parts
['O1']=6, ['O2']=7, ['O2B']=8, ['O3']=9, ['O5']=10, -- for the override tables
['D1']=11, ['D2']=12, ['D2B']=13, ['D3']=14, ['D5']=15, -- for the deprecated tables
})[part];
lang = mw.ustring.lower (lang); -- convert to lowercase for use as table index
if not temp[lang] then -- when no entry for this language
temp[lang] = {}; -- make a blank entry
end
table.insert(temp[lang], string.format('[%s]=\"%s\"', part, code)) -- add the code; codes are added in the order that this function is called in iso_639_name_to_code()
end
-- TODO: better name
local function iterate_table(part_data, part_number)
for code, v in pairs (part_data) do
for _, lang in ipairs (v) do -- code can have multiple names so for each one
lang_add (lang, code, part_number); -- create and / or add this name / code pair to the output
end
end
end
--[[--------------------------< I S O 6 3 9 _ N A M E _ T O _ C O D E >----------------------------------------
read code-to-name source tables and convert to a name-to-code table.
]]
local function iso_639_name_to_code ()
local out = {};
local part_data = mw.loadData ('Module:ISO 639 name/ISO 639-3'); -- ISO 639-3 language codes / names
iterate_table(part_data, '3') -- start with part 3 because it has the most codes
part_data = mw.loadData ('Module:ISO 639 name/ISO 639-5'); -- ISO 639-5 language codes / names
iterate_table(part_data, '5')
part_data = mw.loadData ('Module:ISO 639 name/ISO 639-2'); -- ISO 639-2 language codes / names
iterate_table(part_data, '2')
part_data = mw.loadData ('Module:ISO 639 name/ISO 639-2B'); -- ISO 639-2B language codes / names
iterate_table(part_data, '2B')
part_data = mw.loadData ('Module:ISO 639 name/ISO 639-1'); -- ISO 639-1 language codes / names
iterate_table(part_data, '1')
part_data = mw.loadData ('Module:ISO 639 name/ISO 639 override'); -- has override data for all parts
for _, o_part in ipairs ({'1', '2', '2B', '3', '5'}) do -- for each of the override tables
local o_part_data = part_data['override_' .. o_part]; -- point to override data
o_part = 'O' .. o_part; -- prefix o_part
iterate_table(o_part_data, o_part) -- for each code in the data table and for each language name associated with that code
end
part_data = mw.loadData ('Module:ISO 639 name/ISO 639 deprecated'); -- has deprecated data for all parts
for _, d_part in ipairs ({'1', '2', '2B', '3', '5'}) do -- for each of the deprecated tables
local d_part_data = part_data['deprecated_' .. d_part]; -- point to deprecated data
d_part = 'D' .. d_part; -- prefix d_part
iterate_table(d_part_data, d_part) -- for each code in the data table and for each language name associated with that code
end
local function comp (a, b)
return tonumber (a:match ('(%d+)')) < tonumber (b:match ('(%d+)'));
end
for lang, codes in pairs (temp) do
table.sort (codes, comp); -- codes are added in the order that lang_add() is called above; sort to make pretty
table.insert (out, table.concat ({'["', lang, '"] = {', table.concat (codes, ', '), '}'})); -- reformat
end
table.sort (out); -- sort in language name order
local key_str = table.concat ({
'--[[--------------------------< I S O _ 6 3 9 _ N A M E _ T O _ C O D E >--------------------------------------
',
'Key:
',
'[1]=ISO 639-1 [6]=ISO 639-1 override [11]=ISO 639-1 deprecated
',
'[2]=ISO 639-2 [7]=ISO 639-2 override [12]=ISO 639-2 deprecated
',
'[3]=ISO 639-2B [8]=ISO 639-2B override [13]=ISO 639-2B deprecated
',
'[4]=ISO 639-3 [9]=ISO 639-3 override [14]=ISO 639-3 deprecated
',
'[5]=ISO 639-5 [10]=ISO 639-5 override [15]=ISO 639-5 deprecated',
'
]]
'
})
return table.concat ({'
', key_str, 'return {
', table.concat (out, ',
'), '
}
'}); -- render
end
--[[--------------------------< E X P O R T E D _ F U N C T I O N S >------------------------------------------
]]
return {iso_639_name_to_code = iso_639_name_to_code}