Well, you could do this:
( scratchpad ) all-words [ stack-effect (( x p q -- )) effect= ] filter
But, it only checks for arity (meaning it would match an effect (( a b c --
)) also).
If you want to check the stack names in the effect, you can do this:
: my-effect= ( effect1 effect2 --
There's no formal method to search for those, like there is for Haskell
(hoogle).
I've asked this in the past and either erg or qx (can't remember who) came
up with this:
IN: scratchpad all-words [ stack-effect present ( n seq -- elt ) = ]
filter
--- Data stack:
{ nth-unsafe pull-out-nth nth }
