((atom form)
(backq-unparse-expr form splicing))
((not (null (cdr (last form))))
- ;; FIXME: Shouldn't this be an ERROR?
- "### illegal dotted backquote form ###")
+ ;; FIXME: this probably throws a recursive error
+ (bug "found illegal dotted backquote form: ~S" form))
(t
(case (car form)
(backq-list
(mapcar #'backq-unparse (cdr form)))
(backq-list*
(do ((tail (cdr form) (cdr tail))
- (accum nil))
- ((null (cdr tail))
- (nconc (nreverse accum)
- (backq-unparse (car tail) t)))
- (push (backq-unparse (car tail)) accum)))
+ (accum nil))
+ ((null (cdr tail))
+ (nconc (nreverse accum)
+ (backq-unparse (car tail) t)))
+ (push (backq-unparse (car tail)) accum)))
(backq-append
- (mapcan (lambda (el) (backq-unparse el t))
- (cdr form)))
+ (apply #'append
+ (mapcar (lambda (el) (backq-unparse el t))
+ (cdr form))))
(backq-nconc
- (mapcan (lambda (el) (backq-unparse el :nconc))
- (cdr form)))
+ (apply #'append
+ (mapcar (lambda (el) (backq-unparse el :nconc))
+ (cdr form))))
(backq-cons
(cons (backq-unparse (cadr form) nil)
- (backq-unparse (caddr form) t)))
+ (backq-unparse (caddr form) t)))
(backq-vector
(coerce (backq-unparse (cadr form)) 'vector))
(quote
- (cadr form))
+ (cond
+ ((atom (cadr form)) (cadr form))
+ ((and (consp (cadr form))
+ (member (caadr form) *backq-tokens*))
+ (backq-unparse-expr form splicing))
+ (t (cons (backq-unparse `(quote ,(caadr form)))
+ (backq-unparse `(quote ,(cdadr form)))))))
(t
(backq-unparse-expr form splicing))))))
(backq-comma
(write-char #\, stream))
(backq-comma-at
- (princ ",@" stream))
+ (write-string ",@" stream))
(backq-comma-dot
- (princ ",." stream)))
+ (write-string ",." stream)))
+ ;; Ha! an example of where the per-process specials for stream
+ ;; attributes rather than per-stream actually makes life easier.
+ ;; Since all of the attributes are shared in the dynamic state, we
+ ;; can do... -- CSR, 2003-09-30
+ ;;
+ ;; [...] above referred to the trick of printing to a string stream,
+ ;; and then simply printing the resulting sequence to the pretty
+ ;; stream, possibly with a space prepended. However, this doesn't
+ ;; work for pretty streams which need to do margin calculations. Oh
+ ;; well. It was good while it lasted. -- CSR, 2003-12-15
+ ;;
+ ;; This is an evil hack. If we print to a string and then print again,
+ ;; the circularity detection logic behaves as though it's already
+ ;; printed that data... and it has, to a string stream that we send
+ ;; to the bitbucket in the sky. -- PK, 2013-03-30
+ (when (eql (car form) 'backq-comma)
+ (let ((output (with-output-to-string (s)
+ ;; Patching evil with more evil. The next step is
+ ;; likely to stop the madness and unconditionally
+ ;; insert a space.
+ (let (*circularity-hash-table*
+ *circularity-counter*)
+ (write (cadr form) :stream s)))))
+ (when (and (plusp (length output))
+ (or (char= (char output 0) #\.)
+ (char= (char output 0) #\@)))
+ (write-char #\Space stream))))
(write (cadr form) :stream stream))
;;; This is called by !PPRINT-COLD-INIT, fairly late, because