(chicken-script (load "defs.scm"))
(else))
+
+;██╗███╗ ██╗████████╗███████╗██████╗ ██████╗ ██████╗ ███████╗████████╗███████╗██████╗
+;██║████╗ ██║╚══██╔══╝██╔════╝██╔══██╗██╔══██╗██╔══██╗██╔════╝╚══██╔══╝██╔════╝██╔══██╗
+;██║██╔██╗ ██║ ██║ █████╗ ██████╔╝██████╔╝██████╔╝█████╗ ██║ █████╗ ██████╔╝
+;██║██║╚██╗██║ ██║ ██╔══╝ ██╔══██╗██╔═══╝ ██╔══██╗██╔══╝ ██║ ██╔══╝ ██╔══██╗
+;██║██║ ╚████║ ██║ ███████╗██║ ██║██║ ██║ ██║███████╗ ██║ ███████╗██║ ██║
+;╚═╝╚═╝ ╚═══╝ ╚═╝ ╚══════╝╚═╝ ╚═╝╚═╝ ╚═╝ ╚═╝╚══════╝ ╚═╝ ╚══════╝╚═╝ ╚═╝
+;Interpreter
+
(define (joy stack expression dict)
+ ;(joy-trace stack expression)
(if (null? expression)
(values stack dict)
(if (string? (car expression))
((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 quotient) stack expression dict)) ; but for negative divisor, no!?
+ ((is-it? "%") ((joy-func modulo) stack expression dict))
+
+ ((is-it? "add") ((joy-func +) stack expression dict))
+ ((is-it? "sub") ((joy-func -) stack expression dict))
((is-it? "mul") ((joy-func *) stack expression dict))
+ ((is-it? "div") ((joy-func quotient) stack expression dict)) ; but for negative divisor, no!?
+ ((is-it? "mod") ((joy-func modulo) 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? "bool") (joy-bool 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? "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? "first") (values (cons (caar stack) (cdr stack)) expression dict))
+ ((is-it? "rest") (values (cons (cdar stack) (cdr stack)) expression dict))
((is-it? "i") (joy-i stack expression dict))
((is-it? "dip") (joy-dip stack expression dict))
(values (cons (op (cadr stack) (car stack)) (cddr stack)) expression dict)))
+(define (joy-bool stack expression dict)
+ (values (cons (joy-bool-term (car stack)) (cdr stack)) expression dict))
+
+(define (joy-bool-term term)
+ (cond ((boolean? term) term)
+ ((number? term) (not-equal 0 term))
+ ((list? term) (not (null? term)))
+ (else #t)))
+
+
+; ██████╗ ██████╗ ███╗ ███╗██████╗ ██╗███╗ ██╗ █████╗ ████████╗ ██████╗ ██████╗ ███████╗
+;██╔════╝██╔═══██╗████╗ ████║██╔══██╗██║████╗ ██║██╔══██╗╚══██╔══╝██╔═══██╗██╔══██╗██╔════╝
+;██║ ██║ ██║██╔████╔██║██████╔╝██║██╔██╗ ██║███████║ ██║ ██║ ██║██████╔╝███████╗
+;██║ ██║ ██║██║╚██╔╝██║██╔══██╗██║██║╚██╗██║██╔══██║ ██║ ██║ ██║██╔══██╗╚════██║
+;╚██████╗╚██████╔╝██║ ╚═╝ ██║██████╔╝██║██║ ╚████║██║ ██║ ██║ ╚██████╔╝██║ ██║███████║
+; ╚═════╝ ╚═════╝ ╚═╝ ╚═╝╚═════╝ ╚═╝╚═╝ ╚═══╝╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═╝╚══════╝
+;Combinators
+
(define (joy-i stack expression dict)
(values (cdr stack) (append (car stack) expression) dict))
dict)))
+;██████╗ █████╗ ██████╗ ███████╗███████╗██████╗
+;██╔══██╗██╔══██╗██╔══██╗██╔════╝██╔════╝██╔══██╗
+;██████╔╝███████║██████╔╝███████╗█████╗ ██████╔╝
+;██╔═══╝ ██╔══██║██╔══██╗╚════██║██╔══╝ ██╔══██╗
+;██║ ██║ ██║██║ ██║███████║███████╗██║ ██║
+;╚═╝ ╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝╚══════╝╚═╝ ╚═╝
+;Parser
+
(define (string-replace str from to)
(string-intersperse (string-split str from #t) to))
(define (text->expression text) (parse (tokenize text)))
+;██████╗ ██████╗ ██╗███╗ ██╗████████╗███████╗██████╗
+;██╔══██╗██╔══██╗██║████╗ ██║╚══██╔══╝██╔════╝██╔══██╗
+;██████╔╝██████╔╝██║██╔██╗ ██║ ██║ █████╗ ██████╔╝
+;██╔═══╝ ██╔══██╗██║██║╚██╗██║ ██║ ██╔══╝ ██╔══██╗
+;██║ ██║ ██║██║██║ ╚████║ ██║ ███████╗██║ ██║
+;╚═╝ ╚═╝ ╚═╝╚═╝╚═╝ ╚═══╝ ╚═╝ ╚══════╝╚═╝ ╚═╝
+;Printer
+
(define (joy-term->string term)
(cond ((boolean? term) (if term "true" "false"))
((number? term) (->string term))
(define (joy-expression->string expr)
(string-intersperse (map joy-term->string expr) " "))
-(define (doit text)
- (receive (stack _dict)
- (joy '() (text->expression text) (initialize))
- (joy-expression->string stack)))
+;██████╗ ███████╗███████╗██╗███╗ ██╗██╗████████╗██╗ ██████╗ ███╗ ██╗███████╗
+;██╔══██╗██╔════╝██╔════╝██║████╗ ██║██║╚══██╔══╝██║██╔═══██╗████╗ ██║██╔════╝
+;██║ ██║█████╗ █████╗ ██║██╔██╗ ██║██║ ██║ ██║██║ ██║██╔██╗ ██║███████╗
+;██║ ██║██╔══╝ ██╔══╝ ██║██║╚██╗██║██║ ██║ ██║██║ ██║██║╚██╗██║╚════██║
+;██████╔╝███████╗██║ ██║██║ ╚████║██║ ██║ ██║╚██████╔╝██║ ╚████║███████║
+;╚═════╝ ╚══════╝╚═╝ ╚═╝╚═╝ ╚═══╝╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═══╝╚══════╝
+;Definitions
(define (initialize)
- (load-defs (make-hash-table string=? string-hash)))
+ (load-defs! (make-hash-table string=? string-hash)))
-(define (load-defs dict)
- (map (lambda (def) (add-def def dict)) (defs)) ;defs is defined in defs.scm
+(define (load-defs! dict)
+ (for-each (lambda (def) (add-def! def dict)) (defs)) ;defs is defined in defs.scm
dict)
-(define (add-def def dict)
+(define (add-def! def dict)
(let ((def_list (text->expression def)))
(hash-table-set! dict (car def_list) (cdr def_list))))
-(display (doit "5 [] cons [4] concat"))
+;██████╗ ███████╗██████╗ ██╗
+;██╔══██╗██╔════╝██╔══██╗██║
+;██████╔╝█████╗ ██████╔╝██║
+;██╔══██╗██╔══╝ ██╔═══╝ ██║
+;██║ ██║███████╗██║ ███████╗
+;╚═╝ ╚═╝╚══════╝╚═╝ ╚══════╝
+;REPL
+
+(define (prompt) (display "joy? ") (read-line))
+
+(define DICTIONARY (initialize))
+(define STACK '())
+
+(define (doit text)
+ (receive (stack dict) (joy STACK (text->expression text) DICTIONARY)
+ (set! DICTIONARY dict)
+ (set! STACK stack)
+ (joy-expression->string (reverse stack))))
+
+(define (main-loop)
+ (let ((text (prompt)))
+ (if (not (string=? text ""))
+ ((print (doit text)) (main-loop))
+ (else))))
+
+
+(define (joy-trace stack expression)
+ (print (conc (joy-expression->string (reverse stack)) " . " (joy-expression->string expression))))
+
+(main-loop)
+
+
+;(display (doit "5 [] cons [4] concat first"))
;(display (doit "5 down_to_zero"))
;(display (doit "1 2 true [4 5 false] loop <"))
-(newline)
+;(newline)