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(* Title: fixed type for _RE_parsing of strings from frontend
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Author: Walther Neuper
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9911xx
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(c) due to copyright terms
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with hints from Markus Wenzel
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*)
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theory Typefix imports "../ProgLang/Script" begin
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syntax
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"_plus" :: 'a
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"_minus" :: 'a
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"_umin" :: 'a
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"_times" :: 'a
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translations
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"op +" => "_plus :: [real, real] => real" (*infixl 65 *)
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"op -" => "_minus :: [real, real] => real" (*infixl 65 *)
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"uminus"=> "_umin :: [real] => real" (*"- _" [80] 80*)
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"op *" => "_times :: [real, real] => real" (*infixl 70 *)
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ML {*
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val parse_translation =
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[("_plus", curry Term.list_comb (Syntax.const "op +")),
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("_minus", curry Term.list_comb (Syntax.const "op -")),
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("_umin", curry Term.list_comb (Syntax.const "uminus")),
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("_times", curry Term.list_comb (Syntax.const "op *"))];
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*}
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end |