arguments arity mismatch cause functions to be ignored

[jxson]

If I have a function defined:

function leading(size) {
 // ...
}

And I call it from css with:

body {
 margin-left: leading();
}

It gets rendered as:

body {
 margin-left: leading();
}

Is this intentional or a bug? I expected that the function should still be invoked with no arguments and render the output appropriately. Calling it with the right number of arguments does the right thing.

[1j01]

It uses a + in the regexp here, requiring at least one character in the arguments.
(leading( ); would work)
It should probably be changed to a * though.