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dnl @ ../doc/m4.texi:5955: 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.
patsubst(`GNUs not Unix', `^', `OBS: ')
dnl @result{}OBS: GNUs not Unix
patsubst(`GNUs not Unix', `\<', `OBS: ')
dnl @result{}OBS: GNUs OBS: not OBS: Unix
patsubst(`GNUs not Unix', `\w*', `(\&)')
dnl @result{}(GNUs)() (not)() (Unix)()
patsubst(`GNUs not Unix', `\w+', `(\&)')
dnl @result{}(GNUs) (not) (Unix)
patsubst(`GNUs not Unix', `[A-Z][a-z]+')
dnl @result{}GN not
patsubst(`GNUs not Unix', `not', `NOT\')
dnl @error{}m4:stdin:6: Warning: trailing \ ignored in replacement
dnl @result{}GNUs NOT Unix
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