Difference between revisions of "Module:Unsubst"
(Yay, no more hack!) |
m (1 revision) |
(No difference)
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Revision as of 06:25, 8 March 2014
Documentation for this module may be created at Module:Unsubst/doc
local p = {}
local specialParams = {
['$N'] = 'template name',
['$B'] = 'template content',
}
p[''] = function ( frame )
if not frame:getParent() then
error( '{{#invoke:Unsubst|unsubst}} makes no sense without a parent frame' )
end
for k, v in pairs( specialParams ) do
if not frame.args[k] then
error( '{{#invoke:Unsubst|unsubst}} requires parameter ' .. k .. ' (' .. v .. ')' )
end
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
-- Now, build an equivalent template invocation
-- First numbered args, then named
local ret = '{{' .. frame.args['$N']
for k, v in ipairs( args ) do
if string.find( v, '=', 1, true ) then
-- likely something like 1=foo=bar, we need to do it as a named arg
break
end
ret = ret .. '|' .. v
args[k] = nil
end
for k, v in pairs( args ) do
ret = ret .. '|' .. k .. '=' .. v
end
return ret .. '}}'
else
---- Not substing
-- Just return the "body"
return frame.args['$B']
end
end
return p