dnl @ ../doc/m4.texi:2161: Origin of test
dnl @ expected status: 0
dnl @ extra options: 
dnl @ Copyright (C) 2006, 2007, 2008, 2009 Free Software
dnl @ Foundation, Inc.
dnl @ This file is free software; the Free Software Foundation
dnl @ gives unlimited permission to copy and/or distribute it
dnl @ with or without modifications, as long as this notice
dnl @ is preserved.
define(`foo', `no nested quote: $1')
dnl @result{}
foo(`arg')
dnl @result{}no nested quote: arg
define(`foo', `nested quote around $: `$'1')
dnl @result{}
foo(`arg')
dnl @result{}nested quote around $: $1
define(`foo', `nested empty quote after $: $`'1')
dnl @result{}
foo(`arg')
dnl @result{}nested empty quote after $: $1
define(`foo', `nested quote around next character: $`1'')
dnl @result{}
foo(`arg')
dnl @result{}nested quote around next character: $1
define(`foo', `nested quote around both: `$1'')
dnl @result{}
foo(`arg')
dnl @result{}nested quote around both: arg