23 Jun
2006
23 Jun
'06
5:07 p.m.
From: "John R." <jhoger at gmail.com>
---snip---
I could imagine a Forth-like language that has no readahead words and
no punctuation that could still be recognized as forthish.
Particularly if you use tail recursion to replace loop nesting like
Colorforth and 4IM do.
-- John.
One could add one more level to the typical forth interpreter. Most
Forth interpreters first check to see it the word is in the dictionary.
If it is not there, it would see if it could be a number. If not
that, it must be an error.
One could add one additional level to cause a word to be placed
on a sting stack or string buffer.
Something like:
Hello$ World$ 2 $type
would replay with:
Hello World
Defining a word would be:
Hi$ : Hello$ World$ $type ;
It has no look ahead. It does reduce the number of possible names one could
use for word, since none can end in $.
It does simplify string handling for the interpreter but makes it harder for
the programmer.
Dwight