[CM] introducing SAL

[Rick Taube]

Introducing SAL, an alternate syntax for working with CM and Lisp. Sal 
provides commands, statements and infix sexprs. SAL has its own 
lexer/parser and combines features of lisp, dylan, pla and stella. Sal 
comes with its own Emacs mode (sal.el) that provides syntax 
highlighting and eval services via SLIME.

http://pinhead.music.uiuc.edu/~hkt/sal.tgz

this is what sal code looks like (much prettier with syntax 
highlighting!)

; i am a comment. the print command:

print list(1, 2 + 3, 4)

print "the value is: ", interpl( between(0.0,1.0), {0 0 50 1 100 0})

; the define command:

define variable hi = pi * random(2),
                 ho = list(hi,2,3)

define function foo(n)
   loop with l = list()
     repeat n
     set l &= random(127)
     finally return l
   end

define process bar(n, r, lb, ub)
   run repeat n
     for k = between(lb,ub)
	output make(<midi>, time: now(), keynum: k)
     wait random(r)
   end

; open and sprout commands

open "test.mid", versioning: #t

sprout bar(20,.1, 60, 90)

sprout list(bar(30, .1, 60,70), bar(20,.2,30,50)) at {0 1}

load "rts.sys", "midishare.sys"

open "midi-port.ms"

rts 1

sprout bar(20, .1, 60, 80)

;---

SAL is brand new so it may change a bit -- I would be greatful for 
feedback and suggestions.

to try it out:
   install the tarball where you put other cm systems
   add (load "/path/to/sal/sal.el") to your .emacs file
   start cm under slime and do (use-system :sal)
   edit examples.sal, follow directions at top