World splitting is correct; demonstration by the reporter is wrong.
The read command yields the expected array. When the array a is
substituted, the command
printf -- '-%s-\n' ${a[*]}
is interpreted as
printf -- '-%s-\n' a b c d
which produces the reported output indeed. On the other hand, the
following command, with "${a[@]}" instead of ${a[*]} produces the
expected output:
printf 'a b/c\nd\0' | while IFS=/ read -d $'\0' -r -a a; do printf --
'-%s-\n' "${a[@]}"; done
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https://bugs.launchpad.net/bugs/1617572
Title:
Field splitting is not done correctly
Status in bash package in Ubuntu:
New
Bug description:
$ printf 'a b/c\nd\0' | while IFS=/ read -d $'\0' -r -a a; do printf --
'-%s-\n' ${a[*]}; done
-a-
-b-
-c-
-d-
When expected output is:
-a b-
-c
d-
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: bash 4.3-14ubuntu1.1
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Aug 27 16:38:11 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-11-21 (279 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: bash
UpgradeStatus: Upgraded to xenial on 2016-06-24 (63 days ago)
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