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193 lines
6.2 KiB
Scheme
193 lines
6.2 KiB
Scheme
;;;; regexp.test --- test Guile's regular expression functions -*- scheme -*-
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;;;; Jim Blandy <jimb@red-bean.com> --- September 1999
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;;;;
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;;;; Copyright (C) 1999, 2004 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., 59 Temple Place, Suite 330,
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;;;; Boston, MA 02111-1307 USA
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(use-modules (test-suite lib)
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(ice-9 regex))
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;;; Run a regexp-substitute or regexp-substitute/global test, once
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;;; providing a real port and once providing #f, requesting direct
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;;; string output.
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(define (vary-port func expected . args)
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(pass-if "port is string port"
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(equal? expected
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(call-with-output-string
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(lambda (port)
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(apply func port args)))))
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(pass-if "port is #f"
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(equal? expected
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(apply func #f args))))
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(define (object->string obj)
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(call-with-output-string
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(lambda (port)
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(write obj port))))
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;;;
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;;; make-regexp
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;;;
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(with-test-prefix "make-regexp"
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(pass-if-exception "no args" exception:wrong-num-args
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(make-regexp))
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(pass-if-exception "bad pat arg" exception:wrong-type-arg
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(make-regexp 'blah))
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;; in guile prior to 1.6.5 make-regex didn't validate its flags args
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(pass-if-exception "bad arg 2" exception:wrong-type-arg
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(make-regexp "xyz" 'abc))
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(pass-if-exception "bad arg 3" exception:wrong-type-arg
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(make-regexp "xyz" regexp/icase 'abc)))
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;;;
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;;; match:string
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;;;
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(with-test-prefix "match:string"
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(pass-if "foo"
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(string=? "foo" (match:string (string-match ".*" "foo"))))
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(pass-if "foo offset 1"
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(string=? "foo" (match:string (string-match ".*" "foo" 1)))))
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;;;
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;;; regexp-quote
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;;;
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(with-test-prefix "regexp-quote"
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(pass-if-exception "no args" exception:wrong-num-args
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(regexp-quote))
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(pass-if-exception "bad string arg" exception:wrong-type-arg
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(regexp-quote 'blah))
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(let ((lst `((regexp/basic ,regexp/basic)
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(regexp/extended ,regexp/extended)))
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;; string of all characters, except #\nul which doesn't work because
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;; it's the usual end-of-string for the underlying C regexec()
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(allchars (list->string (map integer->char
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(cdr (iota char-code-limit))))))
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(for-each
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(lambda (elem)
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(let ((name (car elem))
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(flag (cadr elem)))
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(with-test-prefix name
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;; try on each individual character, except #\nul
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(do ((i 1 (1+ i)))
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((>= i char-code-limit))
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(let* ((c (integer->char i))
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(s (string c))
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(q (regexp-quote s)))
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(pass-if (list "char" i c s q)
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(let ((m (regexp-exec (make-regexp q flag) s)))
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(and (= 0 (match:start m))
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(= 1 (match:end m)))))))
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;; try on pattern "aX" where X is each character, except #\nul
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;; this exposes things like "?" which are special only when they
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;; follow a pattern to repeat or whatever ("a" in this case)
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(do ((i 1 (1+ i)))
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((>= i char-code-limit))
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(let* ((c (integer->char i))
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(s (string #\a c))
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(q (regexp-quote s)))
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(pass-if (list "string \"aX\"" i c s q)
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(let ((m (regexp-exec (make-regexp q flag) s)))
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(and (= 0 (match:start m))
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(= 2 (match:end m)))))))
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(pass-if "string of all chars"
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(let ((m (regexp-exec (make-regexp (regexp-quote allchars)
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flag) allchars)))
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(and (= 0 (match:start m))
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(= (string-length allchars) (match:end m))))))))
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lst)))
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;;;
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;;; regexp-substitute
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;;;
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(with-test-prefix "regexp-substitute"
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(let ((match
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(string-match "patleft(sub1)patmid(sub2)patright"
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"contleftpatleftsub1patmidsub2patrightcontright")))
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(define (try expected . args)
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(with-test-prefix (object->string args)
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(apply vary-port regexp-substitute expected match args)))
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(try "")
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(try "string1" "string1")
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(try "string1string2" "string1" "string2")
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(try "patleftsub1patmidsub2patright" 0)
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(try "hi-patleftsub1patmidsub2patright-bye" "hi-" 0 "-bye")
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(try "sub1" 1)
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(try "hi-sub1-bye" "hi-" 1 "-bye")
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(try "hi-sub2-bye" "hi-" 2 "-bye")
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(try "contleft" 'pre)
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(try "contright" 'post)
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(try "contrightcontleft" 'post 'pre)
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(try "contrightcontleftcontrightcontleft" 'post 'pre 'post 'pre)
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(try "contrightsub2sub1contleft" 'post 2 1 'pre)
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(try "foosub1sub1sub1sub1bar" "foo" 1 1 1 1 "bar")))
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(with-test-prefix "regexp-substitute/global"
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(define (try expected . args)
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(with-test-prefix (object->string args)
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(apply vary-port regexp-substitute/global expected args)))
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(try "hi" "a(x*)b" "ab" "hi")
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(try "" "a(x*)b" "ab" 1)
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(try "xx" "a(x*)b" "axxb" 1)
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(try "xx" "a(x*)b" "_axxb_" 1)
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(try "pre" "a(x*)b" "preaxxbpost" 'pre)
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(try "post" "a(x*)b" "preaxxbpost" 'post)
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(try "string" "x" "string" 'pre "y" 'post)
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(try "4" "a(x*)b" "_axxb_" (lambda (m)
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(number->string (match:end m 1))))
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(try "_aybycyd_" "x+" "_axbxxcxxxd_" 'pre "y" 'post)
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;; This should not go into an infinite loop, just because the regexp
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;; can match the empty string. This test also kind of beats on our
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;; definition of where a null string can match.
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(try "y_yaybycydy_y" "x*" "_axbxxcxxxd_" 'pre "y" 'post)
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;; These kind of bother me. The extension from regexp-substitute to
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;; regexp-substitute/global is only natural if your item list
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;; includes both pre and post. If those are required, why bother
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;; to include them at all?
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(try "4:7:12:_" "a(x*)b" "_axxbaxbaxxxb_"
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(lambda (m) (number->string (match:end m 1))) ":"
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'post)
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(try "4:10:19:_:19:10:4" "a(x*)b" "_axxbaxxxxbaxxxxxxxb_"
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(lambda (m) (number->string (match:end m 1))) ":"
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'post
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":" (lambda (m) (number->string (match:end m 1))))
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;; Jan Nieuwenhuizen's bug, 2 Sep 1999
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(try "" "_" (make-string 500 #\_)
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'post))
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