Module:Unsubst
Revision as of 01:52, 30 March 2014 by Mr. Stradivarius (talk) (Deprecate the $N parameter; the template name is now detected automatically. The $N check is still present until all transclusions have been updated. Code courtesy of User:Anomie, User:Jackmcbarn and myself.)
Documentation for this module may be created at Module:Unsubst/doc
Script error: Lua error: Internal error: The interpreter exited with status 127.
local p = {}
local specialParams = {
['$N'] = 'template name', -- Deprecated, but keeping until it is removed from transcluding templates
['$B'] = 'template content',
}
p[''] = function ( frame )
if not frame:getParent() then
error( '{{#invoke:Unsubst|}} makes no sense without a parent frame' )
end
if not frame.args['$B'] then
error( '{{#invoke:Unsubst|}} requires parameter $B (template content)' )
end
if mw.isSubsting() then
---- substing
-- Combine passed args with passed defaults
local args = {}
for k, v in pairs( frame.args ) do
if not specialParams[k] then
if v == '__DATE__' then
v = mw.getContentLanguage():formatDate( 'F Y' )
end
args[k] = v
end
end
for k, v in pairs( frame:getParent().args ) do
args[k] = v
end
-- Build an equivalent template invocation
-- First, find the title to use
local titleobj = mw.title.new(frame:getParent():getTitle())
local title
if titleobj.namespace == 10 then -- NS_TEMPLATE
title = titleobj.text
elseif titleobj.namespace == 0 then -- NS_MAIN
title = ':' .. titleobj.text
else
title = titleobj.prefixedText
end
-- Build the invocation body with numbered args first, then named
local ret = '{{' .. title
for k, v in ipairs( args ) do
if string.find( v, '=', 1, true ) then
-- likely something like 1=foo=bar, we need to do it as a named arg
break
end
ret = ret .. '|' .. v
args[k] = nil
end
for k, v in pairs( args ) do
ret = ret .. '|' .. k .. '=' .. v
end
return ret .. '}}'
else
---- Not substing
-- Just return the "body"
return frame.args['$B']
end
end
return p
