dnl @ ../doc/m4.texinfo:982: Origin of test
dnl @ Copyright (C) 2006 Free Software Foundation
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(`x', `substr(ab')
dnl @result{}
define(`y', `cde, `3', `2')')
dnl @result{}
x`'y
dnl @result{}de