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[perl #116086] split "\x20" doesn't work as documented
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From:
Daniel Lukasiak
Date:
December 16, 2012 07:13
Subject:
[perl #116086] split "\x20" doesn't work as documented
Message ID:
rt-3.6.HEAD-17500-1355419953-1494.116086-75-0@perl.org
# New Ticket Created by Daniel Lukasiak
# Please include the string: [perl #116086]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=116086 >
This is a bug report for perl from estrai@estrai.com,
generated with the help of perlbug 1.39 running under perl 5.17.7.
-----------------------------------------------------------------
Hi,
split() has a special case for " " and "\x20" so they work like \s+
(see perldoc -f split for details)
In blead (also observed on 5.17.5) "\x20" doesn't seem to work as documented.
* " " works as expected:
% perl -MData::Dumper -E '$_=" a b c "; print Dumper [ split " " ]'
$VAR1 = [
'a',
'b',
'c'
];
* "\x20" doesn't:
% perl -MData::Dumper -E '$_=" a b c "; print Dumper [ split "\x20" ]'
$VAR1 = [
'',
'',
'a',
'',
'',
'b',
'c'
];
estrai.
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=low
---
Site configuration information for perl 5.17.7:
Configured by estrai at Thu Dec 13 15:39:20 GMT 2012.
Summary of my perl5 (revision 5 version 17 subversion 7) configuration:
Snapshot of: 71446f2da4f4887cb6b60b4ddee4754faee70d3d
Platform:
osname=linux, osvers=2.6.32-5-amd64, archname=x86_64-linux
uname='linux roar 2.6.32-5-amd64 #1 smp sun sep 23 10:07:46 utc
2012 x86_64 gnulinux '
config_args='-de
-Dprefix=/home/estrai/perl5/perlbrew/perls/perl-blead -Dusedevel
-Aeval:scriptdir=/home/estrai/perl5/perlbrew/perls/perl-blead/bin'
hint=recommended, useposix=true, d_sigaction=define
useithreads=undef, usemultiplicity=undef
useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-fno-strict-aliasing -pipe -fstack-protector
-I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2',
cppflags='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
ccversion='', gccversion='4.4.5', gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib /lib/../lib /usr/lib/../lib /lib /usr/lib
/usr/lib/x86_64-linux-gnu /lib64 /usr/lib64
libs=-lnsl -ldb -ldl -lm -lcrypt -lutil -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
libc=/lib/libc-2.11.3.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version='2.11.3'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib
-fstack-protector'
Locally applied patches:
---
@INC for perl 5.17.7:
/home/estrai/perl5/perlbrew/perls/perl-blead/lib/site_perl/5.17.7/x86_64-linux
/home/estrai/perl5/perlbrew/perls/perl-blead/lib/site_perl/5.17.7
/home/estrai/perl5/perlbrew/perls/perl-blead/lib/5.17.7/x86_64-linux
/home/estrai/perl5/perlbrew/perls/perl-blead/lib/5.17.7
.
---
Environment for perl 5.17.7:
HOME=/home/estrai
LANG=en_GB.utf8
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/estrai/perl5/perlbrew/bin:/home/estrai/perl5/perlbrew/perls/perl-blead/bin:/home/estrai/.rbenv/shims:/home/estrai/bin:/Applications/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/usr/X11/bin:/home/estrai/.rbenv/shims:/home/estrai/bin:/Applications/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/usr/X11/bin:/home/estrai/bin:/Application/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/home/estrai/.rbenv/bin:/home/estrai/.rbenv/bin
PERLBREW_BASHRC_VERSION=0.53
PERLBREW_HOME=/home/estrai/.perlbrew
PERLBREW_MANPATH=/home/estrai/perl5/perlbrew/perls/perl-blead/man
PERLBREW_PATH=/home/estrai/perl5/perlbrew/bin:/home/estrai/perl5/perlbrew/perls/perl-blead/bin
PERLBREW_PERL=perl-blead
PERLBREW_ROOT=/home/estrai/perl5/perlbrew
PERLBREW_VERSION=0.53
PERL_BADLANG (unset)
SHELL=/usr/bin/zsh
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