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local p = {}
--[[
main
This function returns the either the first argument or second argument passed to this module, depending on whether it is being previewed.
Usage:
{{#invoke:If preview|main|value_if_preview|value_if_not_preview}}
]]
function p.main(frame)
local result = ''
Preview_mode = frame:preprocess('{{REVISIONID}}'); -- use magic word to get revision id
if not (Preview_mode == nil or Preview_mode == '') then -- if there is a value then this is not a preiview
result = frame.args[2] or '';
else
result = frame.args[1] or ''; -- no value (nil or empty string) so this is a preview
end
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