Fixed treatment of predefined types (Int, String).

Fixed treatment of predefined types (Int, String).
Added treatment of new reserved words to reading old grammars.
This commit is contained in:
aarne
2003-11-07 14:54:44 +00:00
parent 6ae3322b37
commit 4c99687f21
11 changed files with 50 additions and 16 deletions

View File

@@ -14,6 +14,7 @@ import SourceToGrammar
import Option
--- import Custom
import ParGF
import qualified LexGF as L
import ReadFiles ----
@@ -57,7 +58,7 @@ parseOldGrammar :: FilePath -> IOE ([FilePath],[A.TopDef])
parseOldGrammar file = do
putStrE $ "reading old file" +++ file
s <- ioeIO $ readFileIf file
A.OldGr incl topdefs <- ioeErr $ err2err $ pOldGrammar $ myLexer $ fixNewlines s
A.OldGr incl topdefs <- ioeErr $ err2err $ pOldGrammar $ oldLexer $ fixNewlines s
includes <- ioeErr $ transInclude incl
return (includes, topdefs)
@@ -69,3 +70,13 @@ err2err (E.Bad s) = Bad s
ioeEErr = ioeErr . err2err
-- To resolve the new reserved words: change them by turning the final letter to Z.
--- There is a risk of clash.
oldLexer :: String -> [L.Token]
oldLexer = map change . L.tokens where
change t = case t of
(L.PT p (L.TS s)) | elem s new -> (L.PT p (L.TV (init s ++ "Z")))
_ -> t
new = words $ "abstract concrete interface incomplete " ++
"instance out open resource reuse transfer with"

View File

@@ -1,6 +1,7 @@
module Rename where
import Grammar
import Values
import Modules
import Ident
import Macros
@@ -78,6 +79,8 @@ renameIdentTerm env@(act,imps) t =
Vr c -> do
f <- lookupTreeMany prt opens c
return $ f c
Vr (IC "Int") -> return $ Q cPredefAbs cInt -- Int and String are predefined cats
Vr (IC "String") -> return $ Q cPredefAbs cString
Cn c -> do
f <- lookupTreeMany prt opens c
return $ f c