Hi Damien, On Mon, May 13, 2024 at 4:43 AM Damien Mattei <damien.mat...@gmail.com> wrote: > > any idea for a predicate for syntax object in Guile/scheme like exist in > Racket 'syntax?' ?
This predicate is in the (system syntax) module in Guile. > - what is a wrapped syntax object? Syntax objects are part of the syntax-case procedural macro system. A syntax object wraps a value with things like lexical context and source location (when available). For example: scheme@(guile-user)> (call-with-input-string "(1 2 3)" read-syntax) $16 = #<syntax:unknown file:1:0 (#<syntax:unknown file:1:1 1> #<syntax:unknown file:1:3 2> #<syntax:unknown file:1:5 3>)> See 6.8.3 Support for the ‘syntax-case’ System in the manual. Hope this helps, - Dave
