lotto@lhasa.UUCP (10/27/86)
I have run out of ideas trying to implement an SMG$ TERMTABLE entry for
Ann Arbor Ambassador terminals without the DEC option. The snag is over
one string, the set scrolling region stuff.
DEC uses top line, bottom line as the arguments, where Ann Arbor uses
top margin, bottom margin. Simple, no? Well, there are two ways to do
string substitution. One takes numeric arguments to SMG$GET_TERM_DATA
and spits out the decimal ASCII string (!UL). This is what I need, but I
have to do a calculation. So DEC provides the (%n) form for the nth
argument to SMG$GET_TERM_DATA. I end up with:
ESC60;(%1-1);(60-%2);60p
But the % form does not do the ASCII conversion. The Ann Arbor terminal
insists on ASCII arguments. I can bias the things by 30, but that only
works for single digit arguments. Attempting to do the 2 digit case
by hand has failed so far, since there are no priority operators
(expressions get evaluated left to right).
Has anyone solved this problem short of rewriting SMG$GET_TERM_DATA?
Thanks for any help you can provide.
____________
Gerald Lotto - Harvard Chemistry Dept.
UUCP: {seismo,harpo,ihnp4,linus,allegra,ut-sally}!harvard!endor!lhasa!lotto
ARPA: lotto@harvard.harvard.edu or lotto@harvard.ARPA
CSNET: lotto%harvard@csnet-relay