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[perl #25447] Regular expression failing to match trailing digit
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From:
perlbug-followup
Date:
January 28, 2004 21:27
Subject:
[perl #25447] Regular expression failing to match trailing digit
Message ID:
rt-3.0.8-25447-72457.4.96102232754474@perl.org
# New Ticket Created by scott@pocketpurchase.com
# Please include the string: [perl #25447]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=25447 >
This is a bug report for perl from scott@pocketpurchase.com,
generated with the help of perlbug 1.34 running under perl v5.8.0.
-----------------------------------------------------------------
[Please enter your report here]
Try this sample application:
*********************
#!/usr/bin/perl
$EmailAdrRe='[^\(\)<>@,;:\\/"\[\]\000-\040\199]+';
$EmailDomainRe='\w[\w\.\-]*\.\w+';
if($ARGV[0]=~/.*?($EmailAdrRe)\@($EmailDomainRe)/io) {
print "OK\n";
} else {
print "Big trouble!\n";
}
********************
This fragment is a minimal test case of a bug I found in ASSP.
(http://assp.sourceforge.net)
The regular expression is supposed to check for a valid email
address of the form <user@domain.tld>. The bug occurs if the
user portion ends in a digit. <a@b.c> comes back OK. <a9a@b.c>
is fine, too. But <a9@b.c> fails. To make the expression work,
I had to replace $EmailAdrRe with:
$EmailAdrRe='([0-9]|[^\(\)<>@,;:\\/"\[\]\000-\040\199])+';
By explicitly accepting digits, the problem was resolved.
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=high
---
Site configuration information for perl v5.8.0:
Configured by bhcompile'
cf_email='bhcompile at Wed Aug 13 11:45:59 EDT 2003.
Summary of my rderl (revision 5.0 version 8 subversion 0) configuration:
Platform:
osname=linux, osvers=2.4.21-1.1931.2.382.entsmp, archname=i386-linux-thread-multi
uname='linux str'
config_args='-des -Doptimize=-O2 -g -pipe -march=i386 -mcpu=i686 -Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -Dotherlibdirs=/usr/lib/perl5/5.8.0 -Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr'
hint=recommended, useposix=true, d_sigaction=define
usethreads=define use5005threads=undef'
useithreads=define usemultiplicity=
useperlio= d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=un uselongdouble=
usemymalloc=, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
optimize='',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING -fno-strict-aliasing -I/usr/local/include -I/usr/include/gdbm'
ccversion='', gccversion='3.2.2 20030222 (Red Hat Linux 3.2.2-5)', gccosandvers=''
gccversion='3.2.2 200302'
intsize=r, longsize=r, ptrsize=5, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long'
k', ivsize=4'
ivtype='l, nvtype='double'
o_nonbl', nvsize=, Off_t='', lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='gcc'
l', ldflags =' -L/u'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -lgdbm -ldb -ldl -lm -lpthread -lc -lcrypt -lutil
perllibs=
libc=/lib/libc-2.3.2.so, so=so, useshrplib=true, libperl=libper
gnulibc_version='2.3.2'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so', d_dlsymun=undef, ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE'
cccdlflags='-fPIC'
ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5', lddlflags='s Unicode/Normalize XS/A'
Locally applied patches:
MAINT18379
---
@INC for perl v5.8.0:
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/5.8.0
.
---
Environment for perl v5.8.0:
HOME=/root
LANG=en_US.UTF-8
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/usr/local/ssl/bin:/usr/local/apache2/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/usr/bin/X11:/usr/X11R6/bin:/root/bin
PERL_BADLANG (unset)
SHELL=/bin/bash
dlflags='-share (unset)
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