5 - Forth Interest Group

The TAB key is used to erase,
delete and replace lines from PAD.
TAB followed by E erases the line
containing the cursor. TAB followed
by D erases the line and holds the
line in the text output buffer PAD.
The cursor may then be moved to any
position in the file, including other
screeiis, and the contents of PAD may
be put on the new line by the key-
strokes TAB then P. TAB followed by
H places the cursor's line in PAD
without deleting the line. These
commands use the fig-FORTH line
editor definitions E, D, R (REPL in
the listing) and H.
Major Selzer's definition of CASE
does not work in fig-FORTH with its
compiler security features. An appro-
priate definition of his CASE word
for fig-FORTH is shown on line 10.
The word OFF on line 68 controls a
switch in my EMIT to stop output to
my printer. All other words should
be standard fig-FORTH. The terminal
dependent cursor position sequence
used by Selzer for his ADM-3A terminal
(YXCUR, line 3) also works on my SOROC
IQ 120 terminal.
I have found FEDIT to be a conve-
nient editing tool which I use along
with the fig-FORTH editor. Eventu-
ally, I suppose, my entire fig-FORTH
editor will find its way into FEDIT.
I hope your readers will also find it
convenient. I also hope FEDIT lays
to rest some of the recent criticism
of FORTH (in BYTE) concerning its
rudimentary editing facilities. My
thanks to all of you in FIG for your
efforts in promotion FORTH.
Edgar H. Fey
LaGrange, IL