herestring brace expansion

[Eliran Gonen]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-pc-linux-gnu' -DCONF_VENDOR='pc' -DLOC$
uname output: Linux UU8CPLAE 4.4.0-17134-Microsoft #137-Microsoft Thu Jun 14 18:46:00 PST 2018 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-pc-linux-gnu

Bash Version: 4.3
Patch Level: 48
Release Status: release

Description:
“Here Strings” section in the bash(1) manual page claims that “word undergoes brace expansion” while it does not.

Repeat-By:
$ read -a arr <<< x{a{a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z},b{a,b,c,d,e,f,g,h,i,j,k,l,m,n,o}}
$ echo ${arr[*]}
x{a{a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z},b{a,b,c,d,e,f,g,h,i,j,k,l,m,n,o}}

[Eduardo A. Bustamante López]

On Sun, Sep 02, 2018 at 11:55:21PM +0300, Eliran Gonen wrote:
[...]

Post by Eliran Gonen
“Here Strings” section in the bash(1) manual page claims that “word undergoes brace expansion” while it does not.

Hi Eliran,

This was reported by Conor McCarthy back in February 2017:
http://lists.gnu.org/archive/html/bug-bash/2017-02/msg00018.html

and fixed in the `devel' branch of the git repository in commit ac495185aab17ef6030a02ddc0be33380a27a94d
(http://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel&id=ac495185aab17ef6030a02ddc0be33380a27a94d).

It's also fixed in the 5.0 (alpha) version.