as specified: it no longer includes conditional newlines).
** PRINC-TO-STRING binds *PRINT-READABLY* to NIL (as well as
*PRINT-ESCAPE*).
+ ** PPRINT-LOGICAL-BLOCK signals a TYPE-ERROR if its :PREFIX or
+ :PER-LINE-PREFIX argument does not evaluate to a string.
changes in sbcl-0.8.13 relative to sbcl-0.8.12:
* new feature: SB-PACKAGE-LOCKS. See the "Package Locks" section of
(defmacro pprint-logical-block ((stream-symbol
object
&key
- prefix
- per-line-prefix
- (suffix ""))
+ (prefix nil prefixp)
+ (per-line-prefix nil per-line-prefix-p)
+ (suffix "" suffixp))
&body body)
#!+sb-doc
"Group some output into a logical block. STREAM-SYMBOL should be either a
stream, T (for *TERMINAL-IO*), or NIL (for *STANDARD-OUTPUT*). The printer
control variable *PRINT-LEVEL* is automatically handled."
- (when (and prefix per-line-prefix)
- (error "cannot specify both PREFIX and a PER-LINE-PREFIX values"))
+ (when (and prefixp per-line-prefix-p)
+ (error "cannot specify values for both PREFIX and PER-LINE-PREFIX."))
(multiple-value-bind (stream-var stream-expression)
(case stream-symbol
((nil)
;; macro too. It might be worth looking at this to make
;; sure it's not too bloated, since PPRINT-LOGICAL-BLOCK
;; is called many times from system pretty-printing code.
+ ;;
+ ;; FIXME: I think pprint-logical-block is broken wrt
+ ;; argument order, multiple evaluation, etc. of its
+ ;; keyword (:PREFIX, :PER-LINE-PREFIX and :SUFFIX)
+ ;; arguments. Dunno if that's legal.
`(descend-into (,stream-var)
(let ((,count-name 0))
(declare (type index ,count-name) (ignorable ,count-name))
+ ,@(when (or prefixp per-line-prefix-p)
+ `((unless (typep ,(or prefix per-line-prefix) 'string)
+ (error 'type-error
+ :datum ,(or prefix per-line-prefix)
+ :expected-type 'string))))
+ ,@(when suffixp
+ `((unless (typep ,suffix 'string)
+ (error 'type-error
+ :datum ,suffix
+ :expected-type 'string))))
(start-logical-block ,stream-var
- (the (or null string)
- ,(or prefix per-line-prefix))
- ,(if per-line-prefix t nil)
- (the string ,suffix))
+ ,(if (or prefixp per-line-prefix-p)
+ (or prefix per-line-prefix)
+ nil)
+ ,(if per-line-prefix-p t nil)
+ ,suffix)
(block ,block-name
(flet ((,pp-pop-name ()
,@(when object