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bad instructions in comment
--[[
__ __ _ _ _ _ _ _ _
| \/ | ___ __| |_ _| | ___ _ / \ _ _| |_ ___ | |_ _ __ __ _ _ __ ___| | __ _| |_ ___
| |\/| |/ _ \ / _` | | | | |/ _ (_) / _ \| | | | __/ _ \| __| '__/ _` | '_ \/ __| |/ _` | __/ _ \
| | | | (_) | (_| | |_| | | __/_ / ___ \ |_| | || (_) | |_| | | (_| | | | \__ \ | (_| | || __/
|_| |_|\___/ \__,_|\__,_|_|\___(_)_/ \_\__,_|\__\___/ \__|_| \__,_|_| |_|___/_|\__,_|\__\___|
Authors and maintainers:
* User:Zolo - original version
* User:Jarekt
]]
-- local function to help normalize input arguments
local function normalize_input_args(input_args, output_args)
for name, value in pairs( input_args ) do
if value ~= '' then -- nuke empty strings
if type(name)=='string' then name=string.lower(name) end -- convert to lower case
output_args[name] = value
end
end
return output_args
end
-- initialize object to be returned
local p = {}
--[[
autotranslate
This function is the core part of the Autotranslate template.
Usage from a template:
{{#invoke:autotranslate|autotranslate|base=|lang= }}
Parameters:
frame.args.base - base page name
frame.args.lang - desired language (often user's native language)
Error Handling:
]]
function p.autotranslate(frame)
-- switch to lowercase parameters to make them case independent
local args = {}
args = normalize_input_args(frame:getParent().args, args)
args = normalize_input_args(frame.args, args)
-- get language fallback list
if not args.lang or not mw.language.isSupportedLanguage(args.lang) then
args.lang = frame:callParserFunction( "int", "lang" ) -- get user's chosen language
end
local langList = mw.language.getFallbacksFor(args.lang)
table.insert(langList,1,args.lang)
-- find base page
local base = args.base
args.base = nil
assert(base and #base>0, 'Base page not provided for autotranslate' )
if not mw.ustring.find(base,':') then -- if base page does not indicate namespace
base = 'Template:' .. base -- than assume it is a template
end
-- find base template language subpage
local page = args.default -- default page if provided or nil otherwise
for _, language in ipairs(langList) do
if mw.title.new(base .. '/' .. language).exists then
page = base .. '/' .. language -- returns only the page
break
end
end
assert(page, string.format('No fallback page found for autotranslate (base=[[%s]], lang=%s)', base, args.lang))
-- Transclude {{page |....}} with template arguments the same as the ones passed to {{autotranslate}} template.
return frame:expandTemplate{ title = page, args = args}
end
return p
__ __ _ _ _ _ _ _ _
| \/ | ___ __| |_ _| | ___ _ / \ _ _| |_ ___ | |_ _ __ __ _ _ __ ___| | __ _| |_ ___
| |\/| |/ _ \ / _` | | | | |/ _ (_) / _ \| | | | __/ _ \| __| '__/ _` | '_ \/ __| |/ _` | __/ _ \
| | | | (_) | (_| | |_| | | __/_ / ___ \ |_| | || (_) | |_| | | (_| | | | \__ \ | (_| | || __/
|_| |_|\___/ \__,_|\__,_|_|\___(_)_/ \_\__,_|\__\___/ \__|_| \__,_|_| |_|___/_|\__,_|\__\___|
Authors and maintainers:
* User:Zolo - original version
* User:Jarekt
]]
-- local function to help normalize input arguments
local function normalize_input_args(input_args, output_args)
for name, value in pairs( input_args ) do
if value ~= '' then -- nuke empty strings
if type(name)=='string' then name=string.lower(name) end -- convert to lower case
output_args[name] = value
end
end
return output_args
end
-- initialize object to be returned
local p = {}
--[[
autotranslate
This function is the core part of the Autotranslate template.
Usage from a template:
{{#invoke:autotranslate|autotranslate|base=|lang= }}
Parameters:
frame.args.base - base page name
frame.args.lang - desired language (often user's native language)
Error Handling:
]]
function p.autotranslate(frame)
-- switch to lowercase parameters to make them case independent
local args = {}
args = normalize_input_args(frame:getParent().args, args)
args = normalize_input_args(frame.args, args)
-- get language fallback list
if not args.lang or not mw.language.isSupportedLanguage(args.lang) then
args.lang = frame:callParserFunction( "int", "lang" ) -- get user's chosen language
end
local langList = mw.language.getFallbacksFor(args.lang)
table.insert(langList,1,args.lang)
-- find base page
local base = args.base
args.base = nil
assert(base and #base>0, 'Base page not provided for autotranslate' )
if not mw.ustring.find(base,':') then -- if base page does not indicate namespace
base = 'Template:' .. base -- than assume it is a template
end
-- find base template language subpage
local page = args.default -- default page if provided or nil otherwise
for _, language in ipairs(langList) do
if mw.title.new(base .. '/' .. language).exists then
page = base .. '/' .. language -- returns only the page
break
end
end
assert(page, string.format('No fallback page found for autotranslate (base=[[%s]], lang=%s)', base, args.lang))
-- Transclude {{page |....}} with template arguments the same as the ones passed to {{autotranslate}} template.
return frame:expandTemplate{ title = page, args = args}
end
return p