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joshcough/gist:7326312

Created November 5, 2013 21:06
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gistfile1.txt
lazy val setOp = rawWord("UNION") | rawWord("INTERSECT") | rawWord("MINUS")
lazy val simpleSetRule = setReference // characteristicRule | setReference | "(" , Set Rule , ")" ;
lazy val setRule = for {
s1 <- simpleSetRule
op <- setOp
//s2 <- simpleSetRule
} yield (s1, op)
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