(context?) and (sym)

Dmi · Post by **Dmi** » Sat Apr 15, 2006 3:20 pm

> (sym "CON" MAIN nil)
CON
> (context? CON)
true
> (context? (sym "CON" MAIN nil))
nil

The conttext CON is already exists before this tests,

Is there a way to check the existence of a context given by a string?

Lutz · Post by **Lutz** » Sat Apr 15, 2006 3:30 pm

Yes, just add 'eval' ;)

> (sym "CON" MAIN nil)
nil
> (set 'CON:foo 123)
123
> (sym "CON" MAIN nil)
CON
> (context? (eval (sym "CON" MAIN nil)))
true

Lutz

Dmi · Post by **Dmi** » Sat Apr 15, 2006 3:38 pm

The genius is simple :-)
Thanks!