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Date: Tue, 16 Apr 2013 17:08:42 +0200
From: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20130416150842.GA31627@stefanha-thinkpad.redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] qemu-iotests: Fix _filter_qemu
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To: Markus Armbruster <armbru@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu-devel@nongnu.org

On Tue, Apr 16, 2013 at 03:52:14PM +0200, Markus Armbruster wrote:
> Stefan Hajnoczi <stefanha@redhat.com> writes:
> 
> [...]
> > The problem with the POSIX shell string replacement is that the syntax
> > is horrible.  I can never remember what ${%}, ${%%}, ${#} and
> > %{##} do.  $(basename $QEMU_PROG) is clear (although it doesn't handle
> > spaces in the filename!).
> 
> Here's how I cope.  # is left of % my keyboard.  # matches "on the
> left", % "on the right".  #/% are "short" and pick the shortest matching
> pattern.  ##/%% are "long" and pick the longest matching pattern.

Nice :).

Stefan