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+dnl @ ../doc/m4.texi:4399: 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.
+changequote(`[', `]')dnl
+define([a], [1, (b)])dnl
+define([b], [2])dnl
+define([quote], [[$*]])dnl
+define([expand], [_$0(($1))])dnl
+define([_expand],
+ [changequote([(], [)])$1changequote`'changequote(`[', `]')])dnl
+expand([a, a, [a, a], [[a, a]]])
+dnl @result{}1, (2), 1, (2), a, a, [a, a]
+quote(a, a, [a, a], [[a, a]])
+dnl @result{}1,(2),1,(2),a, a,[a, a]