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[perl #21843] fail on substituting values into s/// construct
From:
William Lanahan
Date:
April 5, 2003 17:14
Subject:
[perl #21843] fail on substituting values into s/// construct
Message ID:
rt-21843-54573.6.09276607147834@bugs6.perl.org
# New Ticket Created by William Lanahan
# Please include the string: [perl #21843]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt2/Ticket/Display.html?id=21843 >
This is a bug report for perl from wlanahan@smithers.lz.att.com,
generated with the help of perlbug 1.33 running under perl v5.6.1.
#!/usr/bin/perl -w
#This is perl, v5.6.1 built for sun4-solaris
#Copyright 1987-2001, Larry Wall
# if I try to fill in s/$from/$to/$modifier, I get error below
# yet hard coding a modifier like 'g' works fine, as does s/$from/$to/
#Scalar found where operator expected at ./bug line 20, near "s/$from/$to/$modifier"
#syntax error at ./bug line 20, near "s/$from/$to/$modifier"
#Unterminated <> operator at ./bug line 20.
my ($from, $to, $modifier);
$respBuf = "hello world";
$line = "l|L|g"; # this won't work
#$line = "l|L|"; # <=== ok
chomp( $line );
($from, $to, $modifier) = split('\|', $line);
eval { "" =~ /$from/ } if $from;
eval { "" =~ /$to/ } if $to;
print "DEBUG ORIGINAL respBuf=<$respBuf>\n";
print "DEBUG from=<$from>\n";
print "DEBUG to=<$to>\n";
print "DEBUG modifier=<$modifier>\n";
if ( "${modifier}" ) {
$respBuf =~ s/$from/$to/$modifier; <== causes ERROR
#$respBuf =~ s/$from/$to/g; <== OK
} else {
$respBuf =~ s/$from/$to/;
}
print "DEBUG FINAL respBuf=<$respBuf>\n";
-----------------------------------------------------------------
[Please enter your report here]
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=medium
---
Site configuration information for perl v5.6.1:
Configured by chesla at Thu Mar 14 09:56:02 EST 2002.
Summary of my perl5 (revision 5.0 version 6 subversion 1) configuration:
Platform:
osname=solaris, osvers=2.8, archname=sun4-solaris
uname='sunos sassy 5.8 generic_108528-13 sun4u sparc sunw,ultra-60 '
config_args='-Dinstallprefix=/sas_base/perl/buildperl/instperl -Dprefix=/usr/local -der'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
Compiler:
cc='cc', ccflags ='-I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O',
cppflags='-I/usr/local/include'
ccversion='Sun WorkShop 6 2000/04/07 C 5.1', gccversion='', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=4321
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=8, usemymalloc=y, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -L/usr/local/lib -L/opt/SUNWspro/WS6/lib '
libpth=/usr/local/lib /opt/SUNWspro/WS6/lib /usr/lib /usr/ccs/lib
libs=-lsocket -lnsl -ldb -ldl -lm -lc
perllibs=-lsocket -lnsl -ldl -lm -lc
libc=, so=so, useshrplib=false, libperl=libperl.a
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
cccdlflags='-KPIC', lddlflags='-G -L/usr/local/lib -L/opt/SUNWspro/WS6/lib'
Locally applied patches:
---
@INC for perl v5.6.1:
/usr/local/lib/perl5/5.6.1/sun4-solaris
/usr/local/lib/perl5/5.6.1
/usr/local/lib/perl5/site_perl/5.6.1/sun4-solaris
/usr/local/lib/perl5/site_perl/5.6.1
/usr/local/lib/perl5/site_perl/5.005/sun4-solaris
/usr/local/lib/perl5/site_perl/5.005
/usr/local/lib/perl5/site_perl
.
---
Environment for perl v5.6.1:
HOME=/home/wlanahan
LANG (unset)
LANGUAGE (unset)
LD_LIBRARY_PATH=:/usr/lib/hpnp/lib:/usr/openwin/lib
LOGDIR (unset)
PATH=/sablime/bin/SBCS/bin:/sablime/bin:/sablime/sbin:/usr/sbin:/usr/bin:/home/wlanahan/bin:/usr/local/bin:.:/usr/bin:/usr/ccs/bin:/usr/ucb:/usr/local/bin:/usr/openwin/bin:/opt/exptools/bin
PERL_BADLANG (unset)
SHELL=/bin/ksh
-
[perl #21843] fail on substituting values into s/// construct
by William Lanahan