1 ;;;; tests related to the Lisp reader
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.
14 (in-package "CL-USER")
16 (assert (equal (symbol-name '#:|fd\sA|) "fdsA"))
18 ;;; Prior to sbcl-0.7.2.10, SBCL disobeyed the ANSI requirements on
19 ;;; returning NIL for unset dispatch-macro-character functions. (bug
20 ;;; 151, fixed by Alexey Dejenka sbcl-devel "bug 151" 2002-04-12)
21 (assert (not (get-dispatch-macro-character #\# #\{)))
22 (assert (not (get-dispatch-macro-character #\# #\0)))
23 ;;; And we might as well test that we don't have any cross-compilation
24 ;;; shebang residues left...
25 (assert (not (get-dispatch-macro-character #\# #\!)))
26 ;;; Also test that all the illegal sharp macro characters are
27 ;;; recognized as being illegal.
28 (loop for char in '(#\Backspace #\Tab #\Newline #\Linefeed
29 #\Page #\Return #\Space #\) #\<)
30 do (assert (get-dispatch-macro-character #\# char)))
32 (assert (not (ignore-errors (get-dispatch-macro-character #\! #\0)
35 ;;; In sbcl-0.7.3, GET-MACRO-CHARACTER and SET-MACRO-CHARACTER didn't
36 ;;; use NIL to represent the no-macro-attached-to-this-character case
37 ;;; as ANSI says they should. (This problem is parallel to the
38 ;;; GET-DISPATCH-MACRO misbehavior fixed in sbcl-0.7.2.10, but
39 ;;; was fixed a little later.)
40 (dolist (customizable-char
41 ;; According to ANSI "2.1.4 Character Syntax Types", these
42 ;; characters are reserved for the programmer.
43 '(#\? #\! #\[ #\] #\{ #\}))
44 ;; So they should have no macro-characterness.
45 (multiple-value-bind (macro-fun non-terminating-p)
46 (get-macro-character customizable-char)
47 (assert (null macro-fun))
48 ;; Also, in a bit of ANSI weirdness, NON-TERMINATING-P can be
49 ;; true only when MACRO-FUN is true. (When the character
50 ;; is not a macro character, it can be embedded in a token,
51 ;; so it'd be more logical for NON-TERMINATING-P to be T in
52 ;; this case; but ANSI says it's NIL in this case.
53 (assert (null non-terminating-p))))
55 ;;; rudimentary test of SET-SYNTAX-FROM-CHAR, just to verify that it
56 ;;; wasn't totally broken by the GET-MACRO-CHARACTER/SET-MACRO-CHARACTER
58 (assert (= 123579 (read-from-string "123579")))
59 (let ((*readtable* (copy-readtable)))
60 (set-syntax-from-char #\7 #\;)
61 (assert (= 1235 (read-from-string "123579"))))
63 ;;; PARSE-INTEGER must signal an error of type PARSE-ERROR if it is
64 ;;; unable to parse an integer and :JUNK-ALLOWED is NIL.
65 (macrolet ((assert-parse-error (form)
66 `(multiple-value-bind (val cond)
69 (assert (typep cond 'parse-error)))))
70 (assert-parse-error (parse-integer " "))
71 (assert-parse-error (parse-integer "12 a"))
72 (assert-parse-error (parse-integer "12a"))
73 (assert-parse-error (parse-integer "a"))
74 (assert (= (parse-integer "12") 12))
75 (assert (= (parse-integer " 12 ") 12))
76 (assert (= (parse-integer " 12asdb" :junk-allowed t) 12)))
78 ;;; #A notation enforces that once one 0 dimension has been found, all
79 ;;; subsequent ones are also 0.
80 (assert (equal (array-dimensions (read-from-string "#3A()"))
82 (assert (equal (array-dimensions (read-from-string "#3A(())"))
84 (assert (equal (array-dimensions (read-from-string "#3A((() ()))"))
87 ;;; Bug reported by Nikodemus Siivola on sbcl-devel 2003-07-21:
88 ;;; package misconfiguration
90 (handler-case (with-input-from-string (s "cl:") (read s))
95 ;;; Bugs found by Paul Dietz
96 (assert (equal (multiple-value-list
97 (parse-integer " 123 "))
100 (let* ((base "xxx 123 yyy")
101 (intermediate (make-array 8 :element-type (array-element-type base)
103 :displaced-index-offset 2))
104 (string (make-array 6 :element-type (array-element-type base)
105 :displaced-to intermediate
106 :displaced-index-offset 1)))
107 (assert (equal (multiple-value-list
108 (parse-integer string))
111 (let ((*read-base* *read-base*))
112 (dolist (float-string '(".9" ".9e9" ".9e+9" ".9e-9"
113 "-.9" "-.9e9" "-.9e+9" "-.9e-9"
114 "+.9" "+.9e9" "+.9e+9" "+.9e-9"
115 "0.9" "0.9e9" "0.9e+9" "0.9e-9"
116 "9.09" "9.09e9" "9.09e+9" "9.09e-9"
117 #|"9e9" could be integer|# "9e+9" "9e-9"))
118 (loop for i from 2 to 36
119 do (setq *read-base* i)
120 do (assert (typep (read-from-string float-string)
121 *read-default-float-format*))
123 (read-from-string (substitute #\E #\e float-string))
124 *read-default-float-format*))
125 if (position #\e float-string)
127 (read-from-string (substitute #\s #\e float-string))
129 and do (assert (typep
130 (read-from-string (substitute #\S #\e float-string))
132 and do (assert (typep
133 (read-from-string (substitute #\f #\e float-string))
135 and do (assert (typep
136 (read-from-string (substitute #\F #\e float-string))
138 and do (assert (typep
139 (read-from-string (substitute #\d #\e float-string))
141 and do (assert (typep
142 (read-from-string (substitute #\D #\e float-string))
144 and do (assert (typep
145 (read-from-string (substitute #\l #\e float-string))
147 and do (assert (typep
148 (read-from-string (substitute #\L #\e float-string))
151 (let ((*read-base* *read-base*))
152 (dolist (integer-string '("1." "2." "3." "4." "5." "6." "7." "8." "9." "0."))
153 (loop for i from 2 to 36
154 do (setq *read-base* i)
155 do (assert (typep (read-from-string integer-string) 'integer)))))
157 (let ((*read-base* *read-base*))
158 (dolist (symbol-string '("A." "a." "Z." "z."
162 "0.A" "0.a" "0.Z" "0.z"
164 #|"9eA" "9ea"|# "9e+A" "9e+a" "9e-A" "9e-a"
165 #|"Ae9" "ae9"|# "Ae+9" "ae+9" "Ae-9" "ae-9"
167 "ee+9" "Ee+9" "eE+9" "EE+9"
168 "ee-9" "Ee-9" "eE-9" "EE-9"
170 "A.0" "A.0e10" "a.0" "a.0e10"
173 (loop for i from 2 to 36
174 do (setq *read-base* i)
175 do (assert (typep (read-from-string symbol-string) 'symbol)))))
177 (let ((standard-chars " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~
179 (standard-terminating-macro-chars "\"'(),;`")
180 (standard-nonterminating-macro-chars "#"))
182 (multiple-value-bind (fun non-terminating-p)
183 (get-macro-character char)
185 ((find char standard-terminating-macro-chars)
186 (unless (and fun (not non-terminating-p))
188 ((find char standard-nonterminating-macro-chars)
189 (unless (and fun non-terminating-p)
191 (t (unless (and (not fun) (not non-terminating-p))
193 (let ((*readtable* (copy-readtable nil)))
194 (assert (null (loop for c across standard-chars append (frob c)))))))
196 (let ((standard-chars " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~
198 (undefined-chars "!\"$%&,;>?@[]^_`~{}/dDeEfFgGhHiIjJkKlLmMnNqQtTuUvVwWyYzZ"))
200 (let ((fun (get-dispatch-macro-character #\# char)))
202 ((find char undefined-chars)
203 (when fun (list char)))
204 ((digit-char-p char 10)
205 (when fun (list char)))
207 (unless fun (list char)))))))
208 (let ((*readtable* (copy-readtable nil)))
209 (assert (null (loop for c across standard-chars append (frob c)))))))
211 ;;; All these must return a primary value of NIL when *read-suppress* is T
212 ;;; Reported by Bruno Haible on cmucl-imp 2004-10-25.
213 (let ((*read-suppress* t))
214 (assert (null (read-from-string "(1 2 3)")))
215 (assert (null (with-input-from-string (s "abc xyz)")
216 (read-delimited-list #\) s))))
217 (assert (null (with-input-from-string (s "(1 2 3)")
218 (read-preserving-whitespace s))))
219 (assert (null (with-input-from-string (s "(1 2 3)")
222 ;;; EOF-ERROR-P defaults to true. Reported by Bruno Haible on
223 ;;; cmucl-imp 2004-10-18.
224 (multiple-value-bind (res err) (ignore-errors (read-from-string ""))
226 (assert (typep err 'end-of-file)))
228 (assert (equal '((0 . "A") (1 . "B"))
229 (coerce (read-from-string "#((0 . \"A\") (1 . \"B\"))")
232 ;;; parse-integer uses whitespace[1] not whitespace[2] as its
233 ;;; definition of whitespace to skip.
234 (let ((*readtable* (copy-readtable)))
235 (set-syntax-from-char #\7 #\Space)
236 (assert (= 710 (parse-integer "710"))))
238 (let ((*readtable* (copy-readtable)))
239 (set-syntax-from-char #\7 #\Space)
240 (assert (string= (format nil "~7D" 1) " 1")))
242 (let ((symbol (find-symbol "DOES-NOT-EXIST" "CL-USER")))
243 (assert (null symbol))
245 (read-from-string "CL-USER:DOES-NOT-EXIST")
249 ;;; The GET-MACRO-CHARACTER in SBCL <= "1.0.34.2" bogusly computed its
250 ;;; second return value relative to *READTABLE* rather than the passed
252 (let* ((*readtable* (copy-readtable nil)))
253 (set-syntax-from-char #\" #\A)
254 (multiple-value-bind (reader-fn non-terminating-p)
255 (get-macro-character #\" (copy-readtable nil))
256 (declare (ignore reader-fn))
257 (assert (not non-terminating-p))))
259 (with-test (:name :bug-309093)
262 (read-from-string "`#2A((,(1+ 0) 0) (0 0))")
266 (with-test (:name :set-syntax-from-char-dispatch-macro-char)
267 (let ((rt (copy-readtable)))
268 (make-dispatch-macro-character #\! nil rt)
269 (set-dispatch-macro-character #\! #\! (constantly 'bang^2) rt)
270 (flet ((maybe-bang ()
271 (let ((*readtable* rt))
272 (read-from-string "!!"))))
273 (assert (eq 'bang^2 (maybe-bang)))
274 (set-syntax-from-char #\! #\! rt)
275 (assert (eq '!! (maybe-bang))))))
277 (with-test (:name :read-in-package-syntax)
278 (assert (equal '(sb-c::a (sb-kernel::x sb-kernel::y) sb-c::b)
279 (read-from-string "sb-c::(a sb-kernel::(x y) b)")))
281 (assert (eq :violated!
283 (read-from-string "cl::'foo")
284 (package-lock-violation ()
287 (with-test (:name :bug-309070)
289 (assert (raises-error? (read-from-string "10e10000000000000000000")
290 sb-kernel:reader-impossible-number-error))))