string2symbol.scm 1.4 KB

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  1. ;;; GNU Mes --- Maxwell Equations of Software
  2. ;;; Copyright (C) 2008 Kragen Javier Sitaker
  3. ;;;
  4. ;;; This file is part of GNU Mes.
  5. ;;;
  6. ;;; GNU Mes is free software; you can redistribute it and/or modify it
  7. ;;; under the terms of the GNU General Public License as published by
  8. ;;; the Free Software Foundation; either version 3 of the License, or (at
  9. ;;; your option) any later version.
  10. ;;;
  11. ;;; GNU Mes is distributed in the hope that it will be useful, but
  12. ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  13. ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. ;;; GNU General Public License for more details.
  15. ;;;
  16. ;;; You should have received a copy of the GNU General Public License
  17. ;;; along with GNU Mes. If not, see <http://www.gnu.org/licenses/>
  18. ;; Setup output file
  19. (set-current-output-port (open-output-file "test/results/test056.answer"))
  20. (define (newline) (display #\newline))
  21. (define (for-each f l)
  22. (if (null? l) *unspecified*
  23. (begin (f (car l)) (for-each f (cdr l)))))
  24. ;;; Test for string->symbol.
  25. ;; Ur-Scheme is case-sensitive, so this test needs to compare it with
  26. ;; either a case-sensitive Scheme like MzScheme or a
  27. ;; lowercase-preferred Scheme like Elk.
  28. (define (xp a) (lambda (b) (display (if (eq? a (string->symbol b)) "X" "P"))))
  29. (for-each (xp 'ha) '("Ha" "ha" "ho" "hee" "hee" "ha" "haaa."))
  30. (newline)
  31. ((xp "who") (string-append "w" "ho"))
  32. (newline)
  33. (exit 0)