{- |

Module : $Header$

Copyright : (c) University of Cambridge, Cambridge, England

adaption (c) Till Mossakowski, Uni Bremen 2002-2004

Licence : similar to LGPL, see HetCATS/LICENCE.txt or LIZENZ.txt

Maintainer : hets@tzi.de

Stability : provisional

Portability : portable

translate 'Id' to Isabelle strings

-}

module Isabelle.Translate (showIsa, showIsaSid, showIsaI, transString) where

import Common.Id

import qualified Common.Lib.Map as Map

import Data.Char

------------------- Id translation functions -------------------

showIsa :: Id -> String

showIsa = transString . show

showIsaSid :: SIMPLE_ID -> String

showIsaSid = transString . show

showIsaI :: Id -> Int -> String

showIsaI ident i = showIsa ident ++ "_" ++ show i

isIsaChar :: Char -> Bool

isIsaChar c = (isAlphaNum c && isAscii c) || c `elem` "_'"

replaceChar1 :: Char -> String

replaceChar1 c | isIsaChar c = [c]

| otherwise = replaceChar c++"__"

transString :: String -> String

transString "" = "X"

transString (c:s) =

if isInf (c:s) then concat $ map replaceChar1 (cut (c:s))

else ((if isAlpha c && isAscii c then [c]

else 'X':replaceChar1 c) ++ (concat $ map replaceChar1 s))

isInf :: String -> Bool

isInf s = has2Under s && has2Under (reverse s)

has2Under :: String -> Bool

has2Under (fs:sn:_) = fs == '_' && sn == '_'

has2Under _ = False

cut :: String -> String

cut = reverse . tail . tail . reverse . tail . tail

-- Replacement of special characters

replaceChar :: Char -> String

replaceChar c = Map.findWithDefault "_" c $ Map.fromList

[('!' , "Exclam"),

('#' , "Sharp"),

('$' , "Dollar"),

('%' , "Percent"),

('&' , "Amp"),

('(' , "OBra"),

(')' , "CBra"),

('*' , "x"),

('+' , "Plus"),

(',' , "Comma"),

('-' , "Minus"),

('.' , "Dot"),

('/' , "Div"),

(':' , "Colon"),

(';' , "Semi"),

('<' , "Lt"),

('=' , "Eq"),

('>' , "Gt"),

('?' , "Q"),

('@' , "At"),

('\\' , "Back"),

('^' , "Hat"),

('`' , "'"),

('{' , "Cur"),

('|' , "Bar"),

('}' , "Ruc"),

('~' , "Tilde"),

('\128' , "A1"),

('\129' , "A2"),

('\130' , "A3"),

('\131' , "A4"),

('\132' , "A5"),

('\133' , "A6"),

('\134' , "AE"),

('\135' , "C"),

('\136' , "E1"),

('\137' , "E2"),

('\138' , "E3"),

('\139' , "E4"),

('\140' , "I1"),

('\141' , "I2"),

('\142' , "I3"),

('\143' , "I4"),

('\144' , "D1"),

('\145' , "N1"),

('\146' , "O1"),

('\147' , "O2"),

('\148' , "O3"),

('\149' , "O4"),

('\150' , "O5"),

('\151' , "x"),

('\152' , "O"),

('\153' , "U1"),

('\154' , "U2"),

('\155' , "U3"),

('\156' , "U4"),

('\157' , "Y"),

('\158' , "F"),

('\159' , "ss"),

('�' , "SpanishExclam"),

('�' , "c"),

('�' , "Lb"),

('�' , "o"),

('�' , "Yen"),

('�' , "Bar1"),

('�' , "Paragraph"),

('�' , "\"),"),

('�' , "Copyright"),

('�' , "a1"),

('�' , "\"),"),

('�' , "not"),

('�' , "Minus1"),

('�' , "Regmark"),

('�' , "Degree"),

('�' , "Plusminus"),

('�' , "2"),

('�' , "3"),

('�' , "'"),

('�' , "Mu"),

('�' , "q"),

('�' , "Dot"),

('�' , "'"),

('�' , "1"),

('�' , "2"),

('�' , "\"),"),

('�' , "Quarter"),

('�' , "Half"),

('�' , "Threequarter"),

('�' , "Q"),

('�' , "A7"),

('�' , "A8"),

('�' , "A9"),

('�' , "A10"),

('�' , "A11"),

('�' , "A12"),

('�' , "AE2"),

('�' , "C2"),

('�' , "E5"),

('�' , "E6"),

('�' , "E7"),

('�' , "E8"),

('�' , "I5"),

('�' , "I6"),

('�' , "I7"),

('�' , "I8"),

('�' , "D2"),

('�' , "N2"),

('�' , "O6"),

('�' , "O7"),

('�' , "O8"),

('�' , "O9"),

('�' , "O10"),

('�' , "xx"),

('�' , "011"),

('�' , "U5"),

('�' , "U6"),

('�' , "U7"),

('�' , "U8"),

('�' , "Y"),

('�' , "F"),

('�' , "ss"),

('�' , "a2"),

('�' , "a3"),

('�' , "a4"),

('�' , "a5"),

('�' , "a6"),

('�' , "a7"),

('�' , "ae"),

('�' , "c"),

('�' , "e1"),

('�' , "e2"),

('�' , "e3"),

('�' , "e4"),

('�' , "i1"),

('�' , "i2"),

('�' , "i3"),

('�' , "i4"),

('�' , "d"),

('�' , "n"),

('�' , "o1"),

('�' , "o2"),

('�' , "o3"),

('�' , "o4"),

('�' , "o5"),

('�' , "Div1"),

('�' , "o6"),

('�' , "u1"),

('�' , "u2"),

('�' , "u3"),

('�' , "u4"),

('�' , "y5"),

('�' , "f"),

('�' , "y")]