--[[
We perform the actual check for whether this is a preview here since
preprocessing is relatively expensive.
]]
localframe=mw.getCurrentFrame()
localfunctionis_preview()
localrevision_id=frame:preprocess('{{REVISIONID}}')
-- {{REVISIONID}} is usually the empty string when previewed.
-- I don't know why we're checking for nil but hey, maybe someday things
-- would have broken
returnrevision_id==nilorrevision_id==''
end
localfunctiontemplatestyles()
returnframe:extensionTag{
name='templatestyles',args={src='Module:If preview/styles.css'}
}
end
return{
preview=is_preview(),
templatestyles=templatestyles(),
warning_infrastructure='%s<div class="preview-warning"><strong>Preview warning:</strong> %s</div>',
missing_warning='The template has no warning text. Please add a warning.'
}