Hello, all. This is my first post on the list, I'm a CS student and I've been giving Scheme a shot. (liking it a lot, so far). Now, given the following code: (define-syntax myhash (syntax-rules (->) [(_ (x -> y) ...) #hash((x . y) ...)])) When trying to compile it, I get: . read: expected `(' or `[' or `{' to start a hash pair I was told that this happens because the compiler recognizes #hash as a hash-table long before (in the lexical analysis?) knowing that it is inside a (define-syntax), and therefore doesn't get the semantics of '...' - it just interprets it as illegal syntax. This seems like a major wart with the language. What are your opinions? -- Patrick Steiger. "Theory is when you know something, but it doesn't work. Practice is when something works, but you don't know why. Programmers combine theory and practice: Nothing works and they don't know why." - Anon