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Date: Mon, 28 Jun 2004 10:26:31 -0700 (PDT)
From: Bart Schaefer <schaefer@brasslantern.com>
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Subject: Re: PATCH: (2): Bug#255788: $'' does not work after <<< 
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On Mon, 28 Jun 2004, Peter Stephenson wrote:

> Grud.  I can easily fix this.  I will then commit it without asking, in
> case there are yet more problems...

Well, only kinda.  See what happens with unbalanced backticks:

schaefer<501> cat <<`echo `foo `bar
bquote> `
bquote> `
bquote> `
bquote> 

The only way to get out of this is to interrupt the shell.

However, bash appears to have exactly this same problem, though it's 
harder to tell where the parser is stuck because bash lacks the %_ 
expando.