# New Ticket Created by [EMAIL PROTECTED]
# Please include the string: [perl #36473]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/rt3/Ticket/Display.html?id=36473 >
This is a bug report for perl from [EMAIL PROTECTED],
generated with the help of perlbug 1.35 running under perl v5.8.7.
-----------------------------------------------------------------
[Please enter your report here]
The following subroutine returns its argument with any leading newlines
removed:
sub xxx {
my $s = shift;
$s =~ s/^\n+//;
$s;
}
However, if this function is called from the replacement part of
a s///em, the /m semantics is carried over, and internal newlines
will be deleted.
I've confirmed the bug to be present in 5.000, 5.004_0[45], 5.005_0x,
5.6.x and 5.8.x, including 5.8.7. However, the bug isn't present in
any of the 5.9.x versions of perl.
Full test:
#!/usr/bin/perl
use strict;
use warnings;
no warnings qw /syntax/;
use Test::More tests => 1;
#
# Delete any leading newlines.
#
sub xxx {
my $s = shift;
$s =~ s/^\n+//;
$s;
}
my $a = "A\n\nB"; $a =~ s/([\s\w]+)/xxx $1/e;
my $b = "A\n\nB"; $b =~ s/([\s\w]+)/xxx $1/em;
is ($b, $a);
__END__
1..1
not ok 1
# Failed test (eep at line 21)
# got: 'A
# B'
# expected: 'A
#
# B'
# Looks like you failed 1 test of 1.
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=medium
---
Site configuration information for perl v5.8.7:
Configured by abigail at Wed Jun 1 21:50:09 CEST 2005.
Summary of my perl5 (revision 5 version 8 subversion 7) configuration:
Platform:
osname=linux, osvers=2.4.18-bf2.4, archname=i686-linux-64int-ld
uname='linux alexandra 2.4.18-bf2.4 #1 son apr 14 09:53:28 cest 2002 i686
unknown '
config_args='-des -Dusemorebits -Uversiononly -Dmydomain=.abigail.nl [EMAIL
PROTECTED] [EMAIL PROTECTED] -Doptimize=-g -Dcc=gcc -Dprefix=/opt/perl'
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=define use64bitall=undef uselongdouble=define
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-DDEBUGGING -fno-strict-aliasing -pipe
-I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-g',
cppflags='-DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include'
ccversion='', gccversion='3.0.4', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long long', ivsize=8, nvtype='long double', nvsize=12,
Off_t='off_t', lseeksize=8
alignbytes=4, prototype=define
Linker and Libraries:
ld='gcc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -ldl -lm -lcrypt -lutil -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
libc=/lib/libc-2.2.5.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.2.5'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
no-syntax-warnings
defined-or
---
@INC for perl v5.8.7:
/home/abigail/Perl
/opt/perl/lib/5.8.7/i686-linux-64int-ld
/opt/perl/lib/5.8.7
/opt/perl/lib/site_perl/5.8.7/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.7
/opt/perl/lib/site_perl/5.8.6/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.6
/opt/perl/lib/site_perl/5.8.5/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.5
/opt/perl/lib/site_perl/5.8.4/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.4
/opt/perl/lib/site_perl/5.8.3/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.3
/opt/perl/lib/site_perl/5.8.2/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.2
/opt/perl/lib/site_perl/5.8.1/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.1
/opt/perl/lib/site_perl/5.8.0/i686-linux-64int-ld
/opt/perl/lib/site_perl/5.8.0
/opt/perl/lib/site_perl
.
---
Environment for perl v5.8.7:
HOME=/home/abigail
LANG=C
LANGUAGE (unset)
LD_LIBRARY_PATH=/home/abigail/Lib:/usr/local/lib:/usr/lib:/lib:/usr/X11R6/lib
LOGDIR (unset)
PATH=/home/abigail/Bin:/opt/perl/bin:/usr/local/bin:/usr/local/X11/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/X11R6/bin:/usr/games:/usr/share/texmf/bin:/opt/Acrobat/bin:/opt/java/blackdown/j2sdk1.3.1/bin:/usr/local/games/bin
PERL5LIB=/home/abigail/Perl
PERLDIR=/opt/perl
PERL_BADLANG (unset)
SHELL=/bin/bash
