Panicz panicz
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| ;; a Scheme macro showing how Common Lisp' | |
| ;; tagbody could be translated to Scheme | |
| ;; (Personally I wouldn't recommend using | |
| ;; that macro) | |
| ;; It's been developed under Guile, but should | |
| ;; be portable to any implementation that | |
| ;; supports syntax-case. | |
| (import (system base compile)) | |
| (import (ice-9 pretty-print)) |
panicz
/ runold.scm
Created
May 25, 2023 12:48
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| (define old-lisp-program " | |
| DEFINE (( | |
| (THEOREM (LAMBDA (S) (TH1 NIL NIL (CADR S) (CADDR S)))) | |
| (TH1 (LAMBDA (A1 A2 A C) (COND ((NULL A) | |
| (TH2 A1 A2 NIL NIL C)) (T | |
| (OR (MEMBER (CAR A) C) (COND ((ATOM (CAR A)) | |
| (TH1 (COND ((MEMBER (CAR A) A1) A1) | |
| (T (CONS (CAR A) A1))) A2 (CDR A) C)) | |
| (T (TH1 A1 (COND ((MEMBER (CAR A) A2) A2) |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| (use-modules (grand scheme)) | |
| (define (all-the-same? xs) | |
| (match xs | |
| [(x x) #t] | |
| [(x x . xs*) (all-the-same? `(,x . ,xs*))] | |
| [_ #f])) | |
| (e.g. (all-the-same? '(1 1 1))) | |
| (e.g. (not (all-the-same? '(1 1 2)))) |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| (define (passing-arguments arguments names final) | |
| (assert (= (length arguments) (length names))) | |
| (match arguments | |
| (() | |
| (assert (null? names)) | |
| final) | |
| ((argument . next) | |
| (let (((name . names) names)) | |
| (if (compound? argument) | |
| (passing-arguments next names |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| (use-modules (grand scheme)) ;; https://github.com/plande/grand-scheme | |
| (define ((in? l) x) | |
| (match l | |
| ((h . t) | |
| (or (eq? x h) | |
| ((in? t) x))) | |
| (_ | |
| #f))) |