Problem with extglob patterns used in HISTIGNORE

[Dimitar DIMITROV]

Configuration Information:

    Machine: i686
    OS: linux-gnu
    Compiler: gcc
    Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i68   ↪ 6-redhat-linux-gnu' 
-DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL 
-DHAV   ↪ E_CONFIG_H -DRECYCLES_PIDS   -I.  -I. -I./include -I./lib  
-D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFS   ↪ ET_BITS=64 -O2 -g -pipe 
-Wall 
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-s   ↪ 
ize=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tables
    uname output: Linux pal.sandbox 2.6.18-194.8.1.el5 #1 SMP Thu Jul 1 
19:07:06 
EDT 2010 i686 i686 i386 GNU/Li   ↪ nux
    Machine Type: i686-redhat-linux-gnu

    Bash Version: 3.2
    Patch Level: 25
    Release Status: release

Description:

    The extended glob pattern @(?|??|???|????)*([[:space:]]):*([[:space:]])
    is not respected when used for the HISTIGNORE environment variable:

    export HISTIGNORE='@(?|??|???|????)*([[:space:]]):*([[:space:]])'

    I think the problem is caused by the colons in [[:space:]] conflicting with
    the colons delimiting the different patterns (two in this case). I have to
    use sligthly different patterns to work around the issue:

    export HISTIGNORE="@(?|??|???|????)*( |$'\t'):*( |$'\t')"

Repeat-By:

    export HISTIGNORE='@(?|??|???|????)*([[:space:]]):*([[:space:]])'