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61 lines
897 B
Plaintext
61 lines
897 B
Plaintext
-- abstract syntax of a query language
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abstract Base = {
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cat
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S ;
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NP ;
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PN ;
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CN ;
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AP ;
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A2 ;
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Conj ;
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fun
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-- sentence syntax
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PredAP : NP -> AP -> S ;
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ComplA2 : A2 -> NP -> AP ;
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ModCN : AP -> CN -> CN ;
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ConjAP : Conj -> AP -> AP -> AP ;
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ConjNP : Conj -> NP -> NP -> NP ;
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UsePN : PN -> NP ;
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Every : CN -> NP ;
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Some : CN -> NP ;
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And, Or : Conj ;
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-- lexicon
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UseInt : Int -> PN ;
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Number : CN ;
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Even, Odd, Prime : AP ;
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Equal, Greater, Smaller, Divisible : A2 ;
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Sum, Product, GCD : ListPN -> PN ;
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-- adding questions
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cat
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Question ;
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Answer ;
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ListPN ;
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fun
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WhatIs : PN -> Question ;
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WhichAre : CN -> AP -> Question ;
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QuestS : S -> Question ;
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Yes : Answer ;
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No : Answer ;
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Value : NP -> Answer ;
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None : NP ;
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Many : ListPN -> NP ;
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BasePN : PN -> PN -> ListPN ;
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ConsPN : PN -> ListPN -> ListPN ;
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}
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