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-rw-r--r--src/guile/skribe/lib.scm29
1 files changed, 20 insertions, 9 deletions
diff --git a/src/guile/skribe/lib.scm b/src/guile/skribe/lib.scm
index 4a9b471..fa5e962 100644
--- a/src/guile/skribe/lib.scm
+++ b/src/guile/skribe/lib.scm
@@ -29,23 +29,34 @@
;;;
;;; NEW
;;;
-(define (maybe-copy obj)
- (if (pair-mutable? obj)
- obj
- (copy-tree obj)))
-
(define-macro (new class . parameters)
- `(make ,(string->symbol (format "<~a>" class))
+ `(make ,(string->symbol (format #f "<~a>" class))
,@(apply append (map (lambda (x)
- `(,(make-keyword (car x)) (maybe-copy ,(cadr x))))
+ `(,(symbol->keyword (car x)) ,(cadr x)))
parameters))))
;;;
;;; DEFINE-MARKUP
;;;
(define-macro (define-markup bindings . body)
- ;; This is just a STklos extended lambda. Nothing to do
- `(define ,bindings ,@body))
+ ;; This is just an `(ice-9 optargs)' kind of `lambda*', with DSSSL
+ ;; keyword-style conversion enabled. However, using `(ice-9 optargs)', the
+ ;; `#:rest' argument can only appear last which not what Skribe/DSSSL
+ ;; expect, hence `fix-rest-arg'.
+ (define (fix-rest-arg args)
+ (let loop ((args args)
+ (result '())
+ (rest-arg #f))
+ (if (null? args)
+ (if rest-arg (append (reverse result) rest-arg) (reverse result))
+ (let ((is-rest-arg? (eq? (car args) #:rest)))
+ (loop (if is-rest-arg? (cddr args) (cdr args))
+ (if is-rest-arg? result (cons (car args) result))
+ (if is-rest-arg? (list (car args) (cadr args)) rest-arg))))))
+
+ (let ((name (car bindings))
+ (opts (cdr bindings)))
+ `(define* ,(cons name (fix-rest-arg opts)) ,@body)))
;;;