The MIT-Scheme program development environment includes a general-purpose text editor, Edwin, that has an extension language, Edwin Scheme. Edwin is very similar to another general-purpose text editor, GNU Emacs, which ...

Scheme86 is a computer system designed to interpret programs written in the Scheme dialect of Lisp. A specialized architecture, coupled with new techniques for optimizing register management in the interpreter, allows ...

Cooperation between independent agents depends upon establishing adegree of security. Each of the cooperating agents needs assurance that the cooperation will not endanger resources of value to that agent. In a computer ...

In this paper we describe {\\it syntactic closures}. Syntactic closures address the scoping problems that arise when writing macros. We discuss some issues raised by introducing syntactic closures into the macro ...