Velocity - expression as argument?

[Guenter Huber]

Method as an argument DOES work (as opposed to what I thought first), but it doesn t make sense in this case:

$space.key.substring($space.key.length())

What I actually wanted:

$space.key.substring($space.key.length() - 2)

But the expression as an argument doesn t work. Should it?
Thanks
G.

[Julian Riedinger _Decadis AG_]

not testet but try

$space.key.substring(${space.key.length()} - 2)

[Guenter Huber]

sorry, no go

[Guenter Huber]

## @noparams
#set($len = $space.key.length() - 2)
$space.key.substring($len)

Workaround with var