[perl #27603] Incorrect regexp warning
Hugo Van Der Sanden
# Please include the string: [perl #27603]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org:80/rt3/Ticket/Display.html?id=27603 >
This is a bug report for perl from h...@crypt.org,
generated with the help of perlbug 1.34 running under perl v5.8.1.
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[Please enter your report here]
Just for the record, I noticed that this gives an incorrect warning:
zen% perl -wle 'print $& if shift =~ /(\d)(((??{1 + $^N})))+/' 4321234
(((??{1 + $^N})))+ matches null string many times in regex; marked by <-- HERE in m/(\d)(((??{1 + $^N})))+ <-- HERE / at -e line 1.
1234
zen%
.. in 5.8.* and bleadperl.
[Please do not change anything below this line]
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Flags:
category=core
severity=low
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Site configuration information for perl v5.8.1:
Configured by hv at Tue Sep 30 09:14:26 BST 2003.
Summary of my perl5 (revision 5.0 version 8 subversion 1) configuration:
Platform:
osname=linux, osvers=2.4.2-2, archname=i686-linux
uname='linux zen.crypt.org 2.4.2-2 #2 fri jan 24 21:47:54 gmt 2003 i686 unknown '
config_args='-des -Dprefix=/opt/perl-5.8.1 -Doptimize=-g -O6 -Dusedevel -Uversiononly'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-DDEBUGGING -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
optimize='-g -O6',
cppflags='-DDEBUGGING -fno-strict-aliasing -I/usr/include/gdbm'
ccversion='', gccversion='2.96 20000731 (Red Hat Linux 7.1 2.96-81)', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -lndbm -lgdbm -ldl -lm -lcrypt -lutil -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
libc=/lib/libc-2.2.4.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.2.4'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
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@INC for perl v5.8.1:
/opt/perl-5.8.1/lib/5.8.1/i686-linux
/opt/perl-5.8.1/lib/5.8.1
/opt/perl-5.8.1/lib/site_perl/5.8.1/i686-linux
/opt/perl-5.8.1/lib/site_perl/5.8.1
/opt/perl-5.8.1/lib/site_perl
.
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Environment for perl v5.8.1:
HOME=/home/hv
LANG=C
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/hv/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin
PERL_BADLANG (unset)
SHELL=/bin/bash