author | haftmann |
Mon, 23 Jul 2012 09:28:03 +0200 | |
changeset 49446 | 6efff142bb54 |
parent 43469 | 85ca44488a29 |
child 52297 | 599ff65b85e2 |
permissions | -rw-r--r-- |
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(* Title: HOL/Library/Code_Char.thy |
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Author: Florian Haftmann |
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*) |
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|
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header {* Code generation of pretty characters (and strings) *} |
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|
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theory Code_Char |
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imports List Code_Evaluation Main |
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begin |
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|
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code_type char |
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(SML "char") |
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(OCaml "char") |
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(Haskell "Prelude.Char") |
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(Scala "Char") |
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|
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setup {* |
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fold String_Code.add_literal_char ["SML", "OCaml", "Haskell", "Scala"] |
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#> String_Code.add_literal_list_string "Haskell" |
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*} |
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|
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code_instance char :: equal |
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(Haskell -) |
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|
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code_reserved SML |
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char |
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code_reserved OCaml |
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char |
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|
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code_reserved Scala |
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char |
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|
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code_const "HOL.equal \<Colon> char \<Rightarrow> char \<Rightarrow> bool" |
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(SML "!((_ : char) = _)") |
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(OCaml "!((_ : char) = _)") |
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(Haskell infix 4 "==") |
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(Scala infixl 5 "==") |
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|
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code_const "Code_Evaluation.term_of \<Colon> char \<Rightarrow> term" |
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(Eval "HOLogic.mk'_char/ (IntInf.fromInt/ (Char.ord/ _))") |
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definition implode :: "string \<Rightarrow> String.literal" where |
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"implode = STR" |
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code_reserved SML String |
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code_const implode |
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(SML "String.implode") |
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(OCaml "!(let l = _ in let res = String.create (List.length l) in let rec imp i = function | [] -> res | c :: l -> String.set res i c; imp (i + 1) l in imp 0 l)") |
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(Haskell "_") |
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(Scala "!(\"\" ++/ _)") |
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|
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code_const explode |
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(SML "String.explode") |
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(OCaml "!(let s = _ in let rec exp i l = if i < 0 then l else exp (i - 1) (String.get s i :: l) in exp (String.length s - 1) [])") |
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(Haskell "_") |
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(Scala "!(_.toList)") |
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|
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end |