1 ;;;; test of the pretty-printer
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; While most of SBCL is derived from the CMU CL system, the test
7 ;;;; files (like this one) were written from scratch after the fork
10 ;;;; This software is in the public domain and is provided with
11 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
12 ;;;; more information.
16 ;;;; tests for former BUG 99, where pretty-printing was pretty messed
17 ;;;; up, e.g. PPRINT-LOGICAL-BLOCK - because of CHECK-FOR-CIRCULARITY
18 ;;;; - didn't really work:
19 ;;;; "DESCRIBE interacts poorly with *PRINT-CIRCLE*, e.g. the output from
20 ;;;; (let ((*print-circle* t)) (describe (make-hash-table)))
21 ;;;; is weird, [...] #<HASH-TABLE :TEST EQL :COUNT 0 {90BBFC5}> is an . (EQL)
23 ;;;; So, this was mainly a pretty printing problem.
25 ;;; Create a circular list.
26 (eval-when (:compile-toplevel :load-toplevel :execute)
27 (defparameter *circ-list* '(1 1))
29 (setf (cdr *circ-list*) *circ-list*)))
31 ;;; circular lists are still being printed correctly?
33 (with-output-to-string (*standard-output*)
34 (let ((*print-circle* t))
35 (pprint-logical-block (*standard-output* *circ-list*)
36 (format *standard-output* "~S" *circ-list*))))
41 (with-output-to-string (*standard-output*)
42 (let ((a (list 1 2 3)))
44 (let ((*print-circle* t))
45 (write a :stream *standard-output*))
49 ;;; test case 1 for bug 99
51 (with-output-to-string (*standard-output*)
52 (let* ((*print-circle* t))
53 (format *standard-output* "~@<~S ~_is ~S. This was not seen!~:>"
55 "EQL is EQL. This was not seen!"))
57 ;;; test case 2 for bug 99
59 (with-output-to-string (*standard-output*)
60 (let* ((*print-circle* t))
61 (format *standard-output*
62 "~@<~S ~_is ~S and ~S. This was not seen!~:>"
64 "EQL is EQL and EQL. This was not seen!"))
66 ;;; the original test for BUG 99 (only interactive), no obvious
67 ;;; way to make an automated test:
68 ;;; (LET ((*PRINT-CIRCLE* T)) (DESCRIBE (MAKE-HASH-TABLE)))
71 (quit :unix-status 104)