hackerbase/brmsaptool.scm

128 lines
3.5 KiB
Scheme

;;
;; brmsaptool.scm
;;
;; ISC License
;;
;; Copyright 2023 Brmlab, z.s.
;; Dominik Pantůček <dominik.pantucek@trustica.cz>
;;
;; Permission to use, copy, modify, and/or distribute this software
;; for any purpose with or without fee is hereby granted, provided
;; that the above copyright notice and this permission notice appear
;; in all copies.
;;
;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
;; WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
;; WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
;; AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
;; CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
;; OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
;; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
;; CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
;;
(import (chicken condition)
(chicken process-context)
(chicken file)
(chicken file posix))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Testing
(define-syntax with-handler
(syntax-rules ()
((_ handler body ...)
(call-with-current-continuation
(lambda (k)
(with-exception-handler
(lambda (x) (k (handler x)))
(lambda () body ...)))))))
(define-syntax unit-test
(syntax-rules ()
((_ name condition)
(if (with-handler (lambda (x) #f)
(lambda () condition))
(display ".")
(error 'unit-test name)))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Dictionary
(define (make-dict)
'())
(define (dict-has-key? d k)
(if (assq k d) #t #f))
(define (dict-ref d k . r)
(let ((p (assq k d)))
(if p
(cdr p)
(if (null? r)
(error 'dict-ref "Key does not exist" k)
(car r)))))
(define (dict-remove d k)
(let loop ((s d)
(r '())
(e #t))
(if (null? s)
(if e
(error 'dict-remove "Key does not exist" k)
r)
(if (eq? (caar s) k)
(loop (cdr s) r #f)
(loop (cdr s) (cons (car s) r) e)))))
(define (dict-set d k v)
(let ((dr (let loop ((s d)
(r '()))
(if (null? s)
r
(if (eq? (caar s) k)
(loop (cdr s) r)
(loop (cdr s) (cons (car s) r)))))))
(cons (cons k v)
dr)))
(define (dict-keys d)
(map car d))
(define (dict-tests!)
(display "[test] dict ")
(unit-test 'make-dict (null? (make-dict)))
(unit-test 'dict-ref-nonexistent (with-handler (lambda (x) #t) (dict-ref (make-dict) 'nonexistent) #f))
(unit-test 'dict-ref-default (dict-ref (make-dict) 'nonexistent #t))
(unit-test 'dict-set-nonexistent (equal? (dict-set (make-dict) 'nonexistent 1) '((nonexistent . 1))))
(unit-test 'dict-set-existent (equal? (dict-set (dict-set (make-dict) 'existent 1) 'existent 2) '((existent . 2))))
(unit-test 'dict-remove-nonexistent (with-handler (lambda (x) #t) (dict-remove (make-dict) 'nonexistent) #f))
(unit-test 'dict-remove-existing (null? (dict-remove (dict-set (make-dict) 'existing 1) 'existing)))
(unit-test 'dict-keys (equal? (dict-keys (dict-set (make-dict) 'existing 1)) '(existing)))
(print " ok."))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define *members-directory* "members")
(define (displayln . x)
(apply display x)
(newline))
(define (load-members)
(directory *members-directory*))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Run everything
;; Print banner
(print "brmsaptool 0.1 (c) 2023 Brmlab, z.s.")
(newline)
;; Run tests
(print "Running self-tests:")
(dict-tests!)
(print "All self-tests ok!")
(newline)
;; Perform requested action
(displayln (load-members))