a+: aaaa true[:1] test: test true[:1] old contributed tests b: b true[:1] b: b true[:1] $EOF$: $EOF$ false[:0] a*: aaa true[:1] b: b true[:1] a*: aa true[:1] b: b true[:1] b: b true[:1] $EOF$: $EOF$ false[:0] a|b: b true[:1] $INVALID$: $INVALID$ false[:0] xyzzy: xyzzy true[:1] $EOF$: $EOF$ false[:0] (i|n|t|e)+: intent true[:1] $EOF$: $EOF$ false[:0]