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for backward compatibility we have the old parse function again. the old functionality is exposed by parse_

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krasimir
2010-04-30 20:18:26 +00:00
parent 1c590e41f4
commit 9e7b914c3c
5 changed files with 23 additions and 18 deletions
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30
src/runtime/haskell/PGF.hs
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@@ -58,7 +58,7 @@ module PGF(
Forest.showBracketedString,
-- ** Parsing
parse, parseWithRecovery, parseAllLang, parseAll,
parse, parseAllLang, parseAll, parse_, parseWithRecovery,
-- ** Evaluation
PGF.compute, paraphrase,
@@ -139,10 +139,7 @@ readPGF :: FilePath -> IO PGF
-- | Tries to parse the given string in the specified language
-- and to produce abstract syntax expression.
parse :: PGF -> Language -> Type -> String -> (Parse.ParseResult,Maybe BracketedString)
-- | This is an experimental function. Use it on your own risk
parseWithRecovery :: PGF -> Language -> Type -> [Type] -> String -> (Parse.ParseResult,Maybe BracketedString)
parse :: PGF -> Language -> Type -> String -> [Tree]
-- | The same as 'parseAllLang' but does not return
-- the language.
@@ -156,6 +153,12 @@ parseAll :: PGF -> Type -> String -> [[Tree]]
-- for which at least one parsing is possible are listed.
parseAllLang :: PGF -> Type -> String -> [(Language,[Tree])]
-- | The same as 'parse' but returns more detailed information
parse_ :: PGF -> Language -> Type -> String -> (Parse.ParseResult,Maybe BracketedString)
-- | This is an experimental function. Use it on your own risk
parseWithRecovery :: PGF -> Language -> Type -> [Type] -> String -> (Parse.ParseResult,Maybe BracketedString)
-- | The same as 'generateAllDepth' but does not limit
-- the depth in the generation, and doesn't give an initial expression.
generateAll :: PGF -> Type -> [Expr]
@@ -217,7 +220,17 @@ complete :: PGF -> Language -> Type -> String
readPGF f = decodeFile f
parse pgf lang typ s =
parse pgf lang typ s =
case parse_ pgf lang typ s of
(Parse.ParseResult ts,_) -> ts
_ -> []
parseAll mgr typ = map snd . parseAllLang mgr typ
parseAllLang mgr typ s =
[(lang,ts) | lang <- languages mgr, (Parse.ParseResult ts,_) <- [parse_ mgr lang typ s]]
parse_ pgf lang typ s =
case Map.lookup lang (concretes pgf) of
Just cnc -> Parse.parse pgf lang typ (words s)
Nothing -> error ("Unknown language: " ++ showCId lang)
@@ -231,11 +244,6 @@ groupResults = Map.toList . foldr more Map.empty . start . concat
more (l,s) =
Map.insertWith (\ [x] xs -> if elem x xs then xs else (x : xs)) l s
parseAll mgr typ = map snd . parseAllLang mgr typ
parseAllLang mgr typ s =
[(lang,ts) | lang <- languages mgr, (Parse.ParseResult ts,_) <- [parse mgr lang typ s], not (null ts)]
generateRandom pgf cat = do
gen <- newStdGen
return $ genRandom gen pgf cat