I'm having fun learning Factor and imagining the cool things I'll be
able to do with it someday. But for now, most of my coding involves
translating simple things I've done before in Forth. Sometimes this
can be frustrating. For example, in Forth I might have the following:
: foo begin ." Hi" ?key until ;
If I execute foo, it will print 'Hi' continuously until I hit a key
(any key). My roughly analogous attempt in Factor is:
: foo ( -- ) [ 1 read "q" = not ] [ "Hi" print ] while ;
This is problematic for a couple of reasons. For one, I have to enter
a <cr> to have it print 'Hi'. For another, I have to enter the test
for a specific character ('q' in this case) to break out of the loop.
I read about key gestures, but they seem like overkill for what I'm
looking for. Is there a simple way to get the functionality Forth's
'key?' offers in Factor? Or, if I have to use key gestures, what's the
simplest possible way to use them?
Thanks,
--John
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