;;; {Run-time options}
-((let* ((names '((eval-options-interface
- (eval-options eval-enable eval-disable)
- (eval-set!))
-
- (debug-options-interface
- (debug-options debug-enable debug-disable)
- (debug-set!))
-
- (evaluator-traps-interface
- (traps trap-enable trap-disable)
- (trap-set!))
-
- (read-options-interface
- (read-options read-enable read-disable)
- (read-set!))
-
- (print-options-interface
- (print-options print-enable print-disable)
- (print-set!))
-
- (readline-options-interface
- (readline-options readline-enable readline-disable)
- (readline-set!))
- ))
- (option-name car)
- (option-value cadr)
- (option-documentation caddr)
-
- (print-option (lambda (option)
- (display (option-name option))
- (if (< (string-length
- (symbol->string (option-name option)))
- 8)
- (display #\tab))
- (display #\tab)
- (display (option-value option))
- (display #\tab)
- (display (option-documentation option))
- (newline)))
-
- ;; Below follows the macros defining the run-time option interfaces.
-
- (make-options (lambda (interface)
- `(lambda args
- (cond ((null? args) (,interface))
- ((list? (car args))
- (,interface (car args)) (,interface))
- (else (for-each ,print-option
- (,interface #t)))))))
-
- (make-enable (lambda (interface)
- `(lambda flags
- (,interface (append flags (,interface)))
- (,interface))))
-
- (make-disable (lambda (interface)
+(define define-option-interface
+ (let* ((option-name car)
+ (option-value cadr)
+ (option-documentation caddr)
+
+ (print-option (lambda (option)
+ (display (option-name option))
+ (if (< (string-length
+ (symbol->string (option-name option)))
+ 8)
+ (display #\tab))
+ (display #\tab)
+ (display (option-value option))
+ (display #\tab)
+ (display (option-documentation option))
+ (newline)))
+
+ ;; Below follow the macros defining the run-time option interfaces.
+
+ (make-options (lambda (interface)
+ `(lambda args
+ (cond ((null? args) (,interface))
+ ((list? (car args))
+ (,interface (car args)) (,interface))
+ (else (for-each ,print-option
+ (,interface #t)))))))
+
+ (make-enable (lambda (interface)
`(lambda flags
- (let ((options (,interface)))
- (for-each (lambda (flag)
- (set! options (delq! flag options)))
- flags)
- (,interface options)
- (,interface)))))
-
- (make-set! (lambda (interface)
- `((name exp)
- (,'quasiquote
- (begin (,interface (append (,interface)
- (list '(,'unquote name)
- (,'unquote exp))))
- (,interface))))))
- )
- (procedure->macro
+ (,interface (append flags (,interface)))
+ (,interface))))
+
+ (make-disable (lambda (interface)
+ `(lambda flags
+ (let ((options (,interface)))
+ (for-each (lambda (flag)
+ (set! options (delq! flag options)))
+ flags)
+ (,interface options)
+ (,interface)))))
+
+ (make-set! (lambda (interface)
+ `((name exp)
+ (,'quasiquote
+ (begin (,interface (append (,interface)
+ (list '(,'unquote name)
+ (,'unquote exp))))
+ (,interface)))))))
+ (procedure->macro
(lambda (exp env)
(cons 'begin
- (apply append
- (map (lambda (group)
- (let ((interface (car group)))
- (append (map (lambda (name constructor)
- `(define ,name
- ,(constructor interface)))
- (cadr group)
- (list make-options
- make-enable
- make-disable))
- (map (lambda (name constructor)
- `(defmacro ,name
- ,@(constructor interface)))
- (caddr group)
- (list make-set!)))))
- names)))))))
+ (let* ((option-group (cadr exp))
+ (interface (car option-group)))
+ (append (map (lambda (name constructor)
+ `(define ,name
+ ,(constructor interface)))
+ (cadr option-group)
+ (list make-options
+ make-enable
+ make-disable))
+ (map (lambda (name constructor)
+ `(defmacro ,name
+ ,@(constructor interface)))
+ (caddr option-group)
+ (list make-set!)))))))))
+
+(define-option-interface
+ (eval-options-interface
+ (eval-options eval-enable eval-disable)
+ (eval-set!)))
+
+(define-option-interface
+ (debug-options-interface
+ (debug-options debug-enable debug-disable)
+ (debug-set!)))
+
+(define-option-interface
+ (evaluator-traps-interface
+ (traps trap-enable trap-disable)
+ (trap-set!)))
+
+(define-option-interface
+ (read-options-interface
+ (read-options read-enable read-disable)
+ (read-set!)))
+
+(define-option-interface
+ (print-options-interface
+ (print-options print-enable print-disable)
+ (print-set!)))
\f