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Re: shopt extquote not working


From: Chet Ramey
Subject: Re: shopt extquote not working
Date: Sat, 03 Sep 2005 12:29:19 -0400
User-agent: Mozilla Thunderbird 1.0.6 (Macintosh/20050716)

Enrique Perez-Terron wrote:
> Configuration Information [Automatically generated, do not change]:
> Machine: i386
> OS: linux-gnu
> Compiler: i386-redhat-linux-gcc
> Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='i386'
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i386-redhat-linux-gnu'
> -DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash'
> -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include -I./lib  -D_GNU_SOURCE
> -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g -pipe
> -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -m32 -march=i386 -mtune=pentium4
> -fasynchronous-unwind-tables
> uname output: Linux apeiron.home.lan 2.6.12-1.1398_FC4 #1 Fri Jul 15
> 00:52:32 EDT 2005 i686 i686 i386 GNU/Linux
> Machine Type: i386-redhat-linux-gnu
> 
> Bash Version: 3.0
> Patch Level: 16
> Release Status: release
> 
> Description:
>     The form $'string' does not get expanded if it occurs in
>     a double-quoted string even if shopt extquote is on.

That's not what extquote does.  If you read the man page, it says:

        If  set,  $'string'  and  $"string" quoting is performed
        within  ${parameter}  expansions  enclosed   in   double
        quotes.  This option is enabled by default.

It doesn't affect double-quoted strings that don't contain
parameter expansion or $'...' expansions that occur outside
parameter expansions.

Chet
-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
                                                Live Strong.
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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