24 Jan
2006
24 Jan
'06
10:50 a.m.
That's odd.
Usually ." Hello, world." words on all forths.
Watch out. In some Forths, ." can only be used inside a colon definition,
not in the imput like (you get some very odd effects, possibly even a
crash if you try). I used to know the reason for this, something about it
needing to allocate space for the string.
At least one Forth used " rather than ." too.
Keep in mind you do need the space between ." and the first letter of
the string, since ." is a word (a "parsing" word since it reads ahead in
the stream till the ending ")
But there does not need to be a space before the closing quote (if there
is one, it will be output as part of the string)
Might help. Sometimes you can also type WORDS at the
command prompt and
see all the words.
VLIST (stands for Vocabulary List) is another word some FORTHs use for this.
-tony