[net.unix-wizards] BS and interpretive languages under UNIX ?

dan (08/28/82)

	I have just been evaluating the BS interpretive language which comes
with System III. As distributed, it contains a number of blatant bugs. In
addition, whoever wrote it seems to have no moral inhibitions against the
use of goto's. I have managed to fix all the bugs I have found thus far.

	On the positive side, BS compiles its programs into a pseudo code and
is thus roughly as fast as the fastest BASIC's I've used under PDP-11 UNIX
(e.g. DEC-BASIC, BASIC+), all of which are faster than either Bill Webb's
BASIC or BITE from Bell. BS is written in C, will run on nonI&D PDP11's,
and supports structured, modular programming.

	Has anyone used, fixed, or extended BS significantly ?

	What other interactive languages of this sort are available ?
	 The language should support structured programming (not BASIC),
	 usable under small PDP11 UNIX's, have acceptable computational
	 facility (probably not LISP or FORTH), and written in C
	 (or equivalent).
	An interactive C would be nice.

				Thanks,
				Dan Ts'o
				...decvax!cca!ima!n44a!dan