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Message-ID: <42CDFACB.6090203@byu.net>
Date: Thu, 07 Jul 2005 22:02:19 -0600
From: Eric Blake <ebb9 AT byu DOT net>
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To: Lev Bishop <lev DOT bishop AT gmail DOT com>
CC: cygwin AT cygwin DOT com, bug-bash AT gnu DOT org
Subject: Re: Broken parse on `'${'`
References: <42CDE346 DOT 30908 AT byu DOT net> <ba40711f050707205050f15f3e AT mail DOT gmail DOT com>
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According to Lev Bishop on 7/7/2005 9:50 PM:
>>bash$ echo `echo '${'`
>>
> 
> Actually, this is a bad example, because even if bash did parse
> correctly, there would be still an incomplete ${ substitution for the
> outer echo

No, because by POSIX XCU 2.6.3, "The results of command substitution shall
not be processed for further tilde expansion, parameter expansion, command
substitution, or arithmetic expansion."  So the outer echo should behave
the same as if it had been invoked "echo \$\{", and print ${.

- --
Life is short - so eat dessert first!

Eric Blake             ebb9 AT byu DOT net
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