Re: [racket] Enhancing a macro

I've just come across Jay McCarthy's blog series on continuation marks where he uses this exact problem (keeping track of indentation level) to illustrate the use of dynamic-wind, parameters, and continuation marks. http://jeapostrophe.github.com/blog/2012/07/16/cont-marks/ http://jeapostrophe.git

Re: [racket] Enhancing a macro

Thanks Jeremiah! I took your idea and modified it slightly so that the let**-debug is in the body of the parameterize. It works great. Cheers, Harry (define indent-size (make-parameter 0)) (define-syntax let**-debug (syntax-rules () [(let**-debug tmp a ...) (parameterize ([indent-size (+

Re: [racket] Enhancing a macro

On Wed, 22 Aug 2012, Harry Spier wrote: I have a macro let**-debug (based on the let** macro from Matthias Felliesen) which gives me timing information. (define-syntax let**-debug (syntax-rules () [(_ tmp body) (begin (displayln 'body) (time body))] [(_ tmp a b ... body) (let ([tmp (begi

[racket] Enhancing a macro

I have a macro let**-debug (based on the let** macro from Matthias Felliesen) which gives me timing information. (define-syntax let**-debug (syntax-rules () [(_ tmp body) (begin (displayln 'body) (time body))] [(_ tmp a b ... body) (let ([tmp (begin (displayln 'a) (time a))]) (let**-debu