<div><br></div><div class="gmail_quote">2011/5/14 Elliott Cable <span dir="ltr"><<a href="mailto:me@ell.io">me@ell.io</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> I’m new to both Racket and Scheme; I’ve been reading through the R6RS,<br> and I’m trying to get started with some simple code.<br> <br> Unfortunately, I’m having trouble with Racket’s R6RS syntax/supporting<br> features; what, exactly, is `(#%module-begin)` supposed to do? How am<br> I supposed to properly use it? From the way I read it, I’m supposed to<br> wrap every R6RS “library” and “top-level program” individually in a<br> Racket `(#%module-begin)` to make Racket capable of understanding the<br> R6RS content?<br> <br> Here’s what I was getting started with, and thus the code I can’t seem<br> to get working. I get an error that it’s expecting an `(import)`<br> instead of an `(export)`, which seems to me that it would source from<br> Racket thinking it’s looking at an R6RS top-level program instead of a<br> library (where `(export)` *would* be illegal syntax):<br> <a href="https://gist.github.com/972114" target="_blank">https://gist.github.com/972114</a><br> <br> The error I’m getting is thus:<br> <br> some-r6rs.rkt:1:22: top-level-program: expected an `import'<br> declaration, found something else in: (#%module-begin (library<br> (wheeeee (1 1)) (export run) (import (library (rnrs base (6))))<br> (define (run a) (printf "running!\n"))))<br><br></blockquote><div><br></div><div>I don't think it's a great idea to start with R6RS, it has not gained a lot of acceptance, so its advantages against the Racket language is mostly theoretical.</div> <div><br></div><div>That said, here's a simple R&RS program:</div><div><br></div><div><div>#!r6rs</div><div><br></div><div>(import (library (rnrs base (6)))</div><div> (library (rnrs io simple (6))))</div><div> <br></div><div>(display</div><div> (+ 2 2))</div></div><div><br></div><div><br></div></div>