How do I include files in DrScheme?
racket, sicp
Solution
It's not clear from your question what language level you're using; certain legacy languages may make certain mechanisms unavailable.
The best inclusion/abstraction mechanism is that of modules.
First, set your language level to "module". Then, if I have these two files in the same directory:
File uses-square.ss:
#lang scheme
(require "square.ss")
(define (super-duper x) (square (square x)))
File square.ss :
#lang scheme
(provide square)
(define (square x) (* x x))
Then I can hit "run" on the "uses-square.ss" buffer and everything will work the way you'd expect.
Caveat: untested code.
Problem
I'm using DrScheme to work through SICP, and I've noticed that certain procedures (for example, `square`) get used over and over. I'd like to put these in a separate file so that I can include them in other programs without having to rewrite them every time, but I can't seem to figure out how to do this. I've tried: ``` (load filename) (load (filename)) (load ~/path-to-directory/filename) (require filename) (require ~/path-to-directory/filename) (require path-from-root/filename) ``` None of these works. Obviously I'm grasping at straws -- any help is much appreciated.