{-# OPTIONS -cpp #-}

{-|

Module : $Header$

Copyright : (c) C. Maeder, Uni Bremen 2005

License : similar to LGPL, see HetCATS/LICENSE.txt or LIZENZ.txt

Maintainer : maeder@tzi.de

Stability : provisional

Portability : non-portable(Logic)

dumping a LibEnv to Isabelle theory files

-}

module Isabelle.CreateThy where

import Data.List

import Common.AS_Annotation

import qualified Common.Lib.Map as Map

import qualified Common.Lib.Set as Set

import Common.PrettyPrint

import Common.PPUtils

import Common.Lib.Pretty as P

import Isabelle.IsaSign as IsaSign

import Isabelle.Translate

import Isabelle.IsaPrint

createTheoryText :: Sign -> [Named Sentence] -> Doc

createTheoryText sig sens =

let (axs, rest) = getAxioms sens

(defs, _) = getDefs rest

in printText sig $++$

(if null axs then empty else text "axioms" $$

vcat (map printNamedSen $ disambiguate sig axs)) $++$

(if null defs then empty else text "defs" $$

vcat (map printNamedSen defs))

$++$ text "end"

$$ vcat (map (text . show) defs)

getAxioms, getDefs :: [Named Sentence] ->

([Named Sentence], [Named Sentence])

getAxioms = partition ( \ s -> case sentence s of

Sentence _ -> True

_ -> False)

getDefs = partition ( \ s -> case sentence s of

ConstDef _ -> True

_ -> False)

disambiguate :: Sign -> [Named Sentence] -> [Named Sentence]

disambiguate sign axs =

let s0 = Map.findWithDefault Set.empty (baseSig sign) isaPrelude

number :: Set.Set String -> Int -> String -> String

number given c n = let new = n ++ show c in

if Set.member new given then

number given (c+1) n else new

rename given n = if Set.member n given then number given 2 n else n

accFun s a = let m = senName a

n = if null m then number s 1 "Ax"

else rename s (transString m)

in (Set.insert n s, a { senName = n})

in snd $ mapAccumL accFun s0 axs

printNamedSen :: Named Sentence -> Doc

printNamedSen (NamedSen lab _ s) = text (case s of

ConstDef _ -> lab ++ "_def"

Sentence _ -> lab

Theorem _ _ _ -> "theorem " ++ lab)

<+> colon <+> doubleQuotes (printText s)