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concat cons comparison

This commit is contained in:
sforman 2023-08-11 22:48:25 -07:00
parent 8df8634e39
commit 1a37a8e81c
1 changed files with 19 additions and 2 deletions
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21
implementations/scheme-chicken/joy.scm
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@ -50,12 +50,25 @@
((is-it? "*") ((joy-func *) stack expression dict))
((is-it? "mul") ((joy-func *) stack expression dict))
((is-it? "<") ((joy-func <) stack expression dict))
((is-it? ">") ((joy-func >) stack expression dict))
((is-it? "<=") ((joy-func <=) stack expression dict))
((is-it? ">=") ((joy-func >=) stack expression dict))
((is-it? "=") ((joy-func =) stack expression dict))
((is-it? "<>") ((joy-func not-equal) stack expression dict))
((is-it? "!=") ((joy-func not-equal) stack expression dict))
((is-it? "dup") (values (cons (car stack) stack) expression dict))
((is-it? "pop") (values (cdr stack) expression dict))
((is-it? "stack") (values (cons stack stack) expression dict))
((is-it? "swaack") (values (cons (cdr stack) (car stack)) expression dict))
((is-it? "swap") (values (cons (cadr stack) (cons (car stack) (cddr stack))) expression dict))
((is-it? "concat") ((joy-func append) stack expression dict))
((is-it? "cons") ((joy-func cons) stack expression dict))
;((is-it? "first") ((joy-func not-equal) stack expression dict))
;((is-it? "rest") ((joy-func not-equal) stack expression dict))
((is-it? "i") (joy-i stack expression dict))
((is-it? "dip") (joy-dip stack expression dict))
((is-it? "branch") (joy-branch stack expression dict))
@ -64,7 +77,9 @@
((hash-table-exists? dict symbol)
(values stack (append (hash-table-ref dict symbol) expression) dict))
(else (error "Unknown word."))))
(else (error (conc "Unknown word: " symbol)))))
(define (not-equal a b) (not (= a b)))
(define (joy-func op)
(lambda (stack expression dict)
@ -166,7 +181,9 @@
(let ((def_list (text->expression def)))
(hash-table-set! dict (car def_list) (cdr def_list))))
(display (doit "5 [] cons [4] concat"))
(display (doit "1 2 true [4 5 false] loop"))
;(display (doit "5 down_to_zero"))
;(display (doit "1 2 true [4 5 false] loop <"))
(newline)