[chaley]

Originally Posted by ownedbycats

Silly question:

I have this rule in emblems:

program: 

	first_non_empty(
		icons_cleanup_metadata(),
		icons_cleanup_missingids(),
		icons_cleanup_fanfic(),
		icons_marked(),
		if 'Cleanup' in virtual_libraries() then 'polish.png' fi
	)

[...]
Is there a better option than first_non_empty? For now, I'm using if is_marked() then 'nope' fi as that won't render anything.

You can use a series of ifs like this:

program: 
	if 	v = icons_cleanup_metadata() then v
	elif	v = icons_cleanup_missingids() then v
	elif	v = icons_cleanup_fanfic() then v
	elif	v = icons_marked() then v
	elif   'Cleanup' in virtual_libraries() then 'polish.png'
	fi

It stops at the first condition that is true, returning whatever v is even if it is empty.

With your change the icons_marked line would become

	elif	is_marked() then ''

The condition is true so it returns the empty string.

The two 'tricks' are:

• The value of an if statement is the value of a then or else block. That is why it has the value of the first evaluated then block.
• Use the embedded assignment so you don't need to call the function (stored template) twice or can return whatever you want as you do in the last elif.