Module:Utils
Documentation for this module may be created at Module:Utils/doc
local util = {}
function util.get_args(frame)
local origArgs
if frame == mw.getCurrentFrame() then
-- We're being called via #invoke. If the invoking template passed any args, use
-- them. Otherwise, use the args that were passed into the template.
origArgs = frame:getParent().args
for k, v in pairs(frame.args) do
origArgs = frame.args
break
end
else
-- We're being called from another module or from the debug console, so assume
-- the args are passed in directly.
origArgs = frame
end
-- ParserFunctions considers the empty string to be false, so to preserve the previous
-- behavior of the template, change any empty arguments to nil, so Lua will consider
-- them false too.
local args = {}
for k, v in pairs(origArgs) do
if v ~= '' then
-- parameter names should be case-insensitive
if type(k) == 'string' then
k = string.lower(k)
end
args[k] = v
end
end
return args
end
function util.expandWikitext(wikitext)
-- function to process wikitext, expanding templates, and return result
return mw.getCurrentFrame():preprocess(wikitext)
end
function util.processArg(arg, default)
-- function that replicates wiki template behaviour where nil and blank arguments are equivalent here
if arg and arg ~= '' then
return arg
end
return default or ''
end
function util.processArgLowered(arg, default)
-- similar to processArg but returns lowered string
local processed_arg = util.processArg(arg, default)
if processed_arg then
return string.lower(processed_arg)
end
return ''
end
return util
