Re: [racket-users] format-id question

On Monday, May 9, 2016 at 11:10:07 AM UTC-7, Matthew Butterick wrote: > Or `format-id` could be patched to automatically unwrap any syntax object > that contains a single datum, obviating the need for `syntax-e` (which would > seem consistent with its handling of things like #'foo) Actually,

Re: [racket-users] format-id question

On May 9, 2016, at 10:41 AM, Kevin Forchione wrote: > > That was a surprise. So ids can’t have numerics as part of their arguments in > format-id? Is that correct? How would I make this work if I wanted to pass > numbers into the format-id to generate ids like foo7, bar3,

Re: [racket-users] format-id question

On Mon, May 9, 2016 at 1:41 PM, Kevin Forchione wrote: > (with-syntax ([name (format-id stx "~a-~a" #'a #'b)]) Change this line to: (with-syntax ([name (format-id stx "~a-~a" (syntax-e #'a) (syntax-e #'b))]) Using syntax-e explicitly gets the value out of the syntax

[racket-users] format-id question

Hi guys, I’ve been working with Racket 6.5 refreshing my macro knowledge and ran into a situation with format-id that baffles me. There’s an example of format-id on the “Fear of Macros” webpage that puzzles me. >(require (for-syntax racket/syntax)) >(define-syntax (hyphen-define/ok3 stx)

Re: [racket-users] How to write a #%module-begin that inspects a syntax property post expansion?

At Sun, 8 May 2016 21:40:04 -0700 (PDT), Jack Firth wrote: > I'm writing a series of macros that attach metadata using syntax properties > during expansion, and I'm attempting to write a #lang whose module-begin form > expands the module and then inspects the metadata attached. The problem I'm