Revised^7 Report on Scheme, Large: Procedural Fascicle Draft is now public

1 comments

• pmcgoron 9 hours ago ago

  Hello everyone.

  Working Group 2 is pleased to announce the first draft of the second part of the R7RS-Large Foundations, the "Procedural Fascicle". This draft encompasses the familiar block programming forms, such as lambda, let, if, or, and set!.

  The draft is available here:

  https://r7rs.org/large/fascicles/proc/

  The biggest new feature is the ability to mix definitions and expressions in bodies, such as the body of a lambda. For example, the following is now valid:

      (define (map f lst)
        (unless (list? lst)
          (error 'map "not a list" lst))
        (define (map* lst acc)
          (if (null? lst)
              (reverse acc)
              (map* (cdr lst) (cons (f (car lst)) acc))))
        (map* lst '()))
  

  We welcome any and all comments on the draft. Anyone can comment by

  * Filing an issue on the R7RS-Large issue tracker <https://codeberg.org/scheme/r7rs> * Sending mail to the Working Group 2 mailing list <https://groups.google.com/g/scheme-reports-wg2> (you do not need a google account) * Sending mail to the Scheme Reports mailing list <https://scheme-reports.simplelists.com/> and <scheme-reports@scheme-reports.org> * Sending mail to the corresponding member Peter McGoron at <code@mcgoron.com>. I will forward your comment to the public issue tracker. Please indicate if you wish to be anonymous.