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3ae3166b23
* libguile/strings.c (scm_string_ref): Add proper range checking for the
empty string.
(scm_string_set_x): Likewise.
Reported by Bill Schottstaedt <bil@ccrma.Stanford.EDU>.
* test-suite/tests/strings.test ("string-ref"): New test prefix.
("string-set!")["empty string", "empty string and non-zero index",
"out of range", "negative index", "regular string"]: New tests.
* NEWS: Update.
259 lines
6.5 KiB
Scheme
259 lines
6.5 KiB
Scheme
;;;; strings.test --- test suite for Guile's string functions -*- scheme -*-
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;;;; Jim Blandy <jimb@red-bean.com> --- August 1999
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;;;;
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;;;; Copyright (C) 1999, 2001, 2004, 2005, 2006, 2008 Free Software Foundation, Inc.
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;;;;
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;;;; This program is free software; you can redistribute it and/or modify
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;;;; it under the terms of the GNU General Public License as published by
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;;;; the Free Software Foundation; either version 2, or (at your option)
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;;;; any later version.
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;;;;
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;;;; This program is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;;; GNU General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU General Public License
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;;;; along with this software; see the file COPYING. If not, write to
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;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;;;; Boston, MA 02110-1301 USA
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(define-module (test-strings)
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#:use-module (test-suite lib))
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(define exception:read-only-string
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(cons 'misc-error "^string is read-only"))
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;; Create a string from integer char values, eg. (string-ints 65) => "A"
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(define (string-ints . args)
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(apply string (map integer->char args)))
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;;
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;; string=?
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;;
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(with-test-prefix "string=?"
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(pass-if "respects 1st parameter's string length"
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(not (string=? "foo\0" "foo")))
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(pass-if "respects 2nd paramter's string length"
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(not (string=? "foo" "foo\0")))
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(with-test-prefix "wrong argument type"
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(pass-if-exception "1st argument symbol"
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exception:wrong-type-arg
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(string=? 'a "a"))
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(pass-if-exception "2nd argument symbol"
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exception:wrong-type-arg
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(string=? "a" 'b))))
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;;
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;; string<?
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;;
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(with-test-prefix "string<?"
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(pass-if "respects string length"
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(and (not (string<? "foo\0a" "foo\0a"))
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(string<? "foo\0a" "foo\0b")))
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(with-test-prefix "wrong argument type"
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(pass-if-exception "1st argument symbol"
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exception:wrong-type-arg
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(string<? 'a "a"))
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(pass-if-exception "2nd argument symbol"
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exception:wrong-type-arg
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(string<? "a" 'b)))
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(pass-if "same as char<?"
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(eq? (char<? (integer->char 0) (integer->char 255))
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(string<? (string-ints 0) (string-ints 255)))))
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;;
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;; string-ci<?
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;;
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(with-test-prefix "string-ci<?"
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(pass-if "respects string length"
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(and (not (string-ci<? "foo\0a" "foo\0a"))
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(string-ci<? "foo\0a" "foo\0b")))
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(with-test-prefix "wrong argument type"
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(pass-if-exception "1st argument symbol"
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exception:wrong-type-arg
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(string-ci<? 'a "a"))
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(pass-if-exception "2nd argument symbol"
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exception:wrong-type-arg
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(string-ci<? "a" 'b)))
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(pass-if "same as char-ci<?"
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(eq? (char-ci<? (integer->char 0) (integer->char 255))
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(string-ci<? (string-ints 0) (string-ints 255)))))
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;;
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;; string<=?
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;;
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(with-test-prefix "string<=?"
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(pass-if "same as char<=?"
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(eq? (char<=? (integer->char 0) (integer->char 255))
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(string<=? (string-ints 0) (string-ints 255)))))
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;;
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;; string-ci<=?
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;;
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(with-test-prefix "string-ci<=?"
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(pass-if "same as char-ci<=?"
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(eq? (char-ci<=? (integer->char 0) (integer->char 255))
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(string-ci<=? (string-ints 0) (string-ints 255)))))
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;;
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;; string>?
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;;
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(with-test-prefix "string>?"
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(pass-if "same as char>?"
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(eq? (char>? (integer->char 0) (integer->char 255))
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(string>? (string-ints 0) (string-ints 255)))))
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;;
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;; string-ci>?
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;;
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(with-test-prefix "string-ci>?"
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(pass-if "same as char-ci>?"
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(eq? (char-ci>? (integer->char 0) (integer->char 255))
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(string-ci>? (string-ints 0) (string-ints 255)))))
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;;
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;; string>=?
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;;
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(with-test-prefix "string>=?"
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(pass-if "same as char>=?"
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(eq? (char>=? (integer->char 0) (integer->char 255))
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(string>=? (string-ints 0) (string-ints 255)))))
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;;
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;; string-ci>=?
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;;
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(with-test-prefix "string-ci>=?"
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(pass-if "same as char-ci>=?"
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(eq? (char-ci>=? (integer->char 0) (integer->char 255))
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(string-ci>=? (string-ints 0) (string-ints 255)))))
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;;
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;; string-ref
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;;
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(with-test-prefix "string-ref"
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(pass-if-exception "empty string"
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exception:out-of-range
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(string-ref "" 0))
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(pass-if-exception "empty string and non-zero index"
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exception:out-of-range
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(string-ref "" 123))
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(pass-if-exception "out of range"
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exception:out-of-range
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(string-ref "hello" 123))
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(pass-if-exception "negative index"
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exception:out-of-range
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(string-ref "hello" -1))
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(pass-if "regular string"
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(char=? (string-ref "GNU Guile" 4) #\G)))
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;;
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;; string-set!
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;;
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(with-test-prefix "string-set!"
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(pass-if-exception "empty string"
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exception:out-of-range
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(string-set! (string-copy "") 0 #\x))
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(pass-if-exception "empty string and non-zero index"
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exception:out-of-range
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(string-set! (string-copy "") 123 #\x))
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(pass-if-exception "out of range"
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exception:out-of-range
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(string-set! (string-copy "hello") 123 #\x))
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(pass-if-exception "negative index"
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exception:out-of-range
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(string-set! (string-copy "hello") -1 #\x))
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(pass-if-exception "read-only string"
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exception:read-only-string
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(string-set! (substring/read-only "abc" 0) 1 #\space))
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(pass-if "regular string"
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(let ((s (string-copy "GNU guile")))
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(string-set! s 4 #\G)
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(char=? (string-ref s 4) #\G))))
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(with-test-prefix "string-split"
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;; in guile 1.6.7 and earlier, character >=128 wasn't matched in the string
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(pass-if "char 255"
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(equal? '("a" "b")
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(string-split (string #\a (integer->char 255) #\b)
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(integer->char 255)))))
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(with-test-prefix "substring-move!"
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(pass-if-exception "substring-move! checks start and end correctly"
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exception:out-of-range
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(substring-move! "sample" 3 0 "test" 3)))
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(with-test-prefix "substring/shared"
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(pass-if "modify indirectly"
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(let ((str (string-copy "foofoofoo")))
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(string-upcase! (substring/shared str 3 6))
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(string=? str "fooFOOfoo")))
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(pass-if "modify cow indirectly"
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(let* ((str1 (string-copy "foofoofoo"))
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(str2 (string-copy str1)))
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(string-upcase! (substring/shared str2 3 6))
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(and (string=? str1 "foofoofoo")
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(string=? str2 "fooFOOfoo"))))
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(pass-if "modify double indirectly"
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(let* ((str1 (string-copy "foofoofoo"))
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(str2 (substring/shared str1 2 7)))
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(string-upcase! (substring/shared str2 1 4))
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(string=? str1 "fooFOOfoo")))
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(pass-if "modify cow double indirectly"
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(let* ((str1 "foofoofoo")
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(str2 (substring str1 2 7)))
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(string-upcase! (substring/shared str2 1 4))
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(and (string=? str1 "foofoofoo")
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(string=? str2 "oFOOf")))))
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