Re: [racket-users] Re: Redex: making a #lang with native lambda, app, etc.

2019-01-03 Thread William J. Bowman
Joey, An early version of Cur did this (which worked well for an initial model, but was terrible for performance and debugging). I don't have anything written up, but you can try reading the code and pinging me with questions: https://github.com/wilbowma/cur/blob/9e575a8c220c0cf399ec3f90e6994

Re: [racket-users] Re: Redex: making a #lang with native lambda, app, etc.

2019-01-03 Thread Shu-Hung You
Deferring everything to runtime could avoid macros as much as possible. You can implement input parsing as a function and use the macro only to glue things together. #lang racket/base (require (for-syntax racket/base) syntax/parse/define redex/reduction-semantics) (provide (ren

[racket-users] Re: Redex: making a #lang with native lambda, app, etc.

2019-01-02 Thread Joey Eremondi
Thanks for the response! That's not quite what I want. That will quote lambdas and applications into my redex models, but I also want it to reduce them by my reduction relation. The link I posted discussed how to do that, but only when you write programs in the syntax of the model. Sorry for n

[racket-users] Re: Redex: making a #lang with native lambda, app, etc.

2018-12-31 Thread Sorawee Porncharoenwase
I'm a novice too, but here's my attempt to help. > I'd like to use (define-syntax) to make lambda, #%app, etc. all expand > into terms in my model. > This works for me. Is this what you want? #lang racket/base (require redex) (define-language L (term ::= (TermLambda var term)