diff -r afd8c9a3672d -r 090269e528df tools/PascalParser.hs --- a/tools/PascalParser.hs Mon Nov 28 23:14:11 2011 +0300 +++ b/tools/PascalParser.hs Tue Nov 29 17:42:42 2011 +0400 @@ -12,97 +12,7 @@ import Data.Maybe import PascalBasics - -data PascalUnit = - Program Identifier Implementation Phrase - | Unit Identifier Interface Implementation (Maybe Initialize) (Maybe Finalize) - | System - deriving Show -data Interface = Interface Uses TypesAndVars - deriving Show -data Implementation = Implementation Uses TypesAndVars - deriving Show -data Identifier = Identifier String - deriving Show -data TypesAndVars = TypesAndVars [TypeVarDeclaration] - deriving Show -data TypeVarDeclaration = TypeDeclaration Identifier TypeDecl - | VarDeclaration Bool ([Identifier], TypeDecl) (Maybe InitExpression) - | FunctionDeclaration Identifier TypeDecl [TypeVarDeclaration] (Maybe (TypesAndVars, Phrase)) - | OperatorDeclaration String Identifier TypeDecl [TypeVarDeclaration] (Maybe (TypesAndVars, Phrase)) - deriving Show -data TypeDecl = SimpleType Identifier - | RangeType Range - | Sequence [Identifier] - | ArrayDecl (Maybe Range) TypeDecl - | RecordType [TypeVarDeclaration] (Maybe [[TypeVarDeclaration]]) - | PointerTo TypeDecl - | String Integer - | Set TypeDecl - | FunctionType TypeDecl [TypeVarDeclaration] - | UnknownType - deriving Show -data Range = Range Identifier - | RangeFromTo InitExpression InitExpression - deriving Show -data Initialize = Initialize String - deriving Show -data Finalize = Finalize String - deriving Show -data Uses = Uses [Identifier] - deriving Show -data Phrase = ProcCall Reference [Expression] - | IfThenElse Expression Phrase (Maybe Phrase) - | WhileCycle Expression Phrase - | RepeatCycle Expression [Phrase] - | ForCycle Identifier Expression Expression Phrase - | WithBlock Reference Phrase - | Phrases [Phrase] - | SwitchCase Expression [([InitExpression], Phrase)] (Maybe [Phrase]) - | Assignment Reference Expression - | NOP - deriving Show -data Expression = Expression String - | BuiltInFunCall [Expression] Reference - | PrefixOp String Expression - | PostfixOp String Expression - | BinOp String Expression Expression - | StringLiteral String - | CharCode String - | HexCharCode String - | NumberLiteral String - | FloatLiteral String - | HexNumber String - | Reference Reference - | SetExpression [Identifier] - | Null - deriving Show -data Reference = ArrayElement [Expression] Reference - | FunCall [Expression] Reference - | TypeCast Identifier Expression - | SimpleReference Identifier - | Dereference Reference - | RecordField Reference Reference - | Address Reference - | RefExpression Expression - deriving Show -data InitExpression = InitBinOp String InitExpression InitExpression - | InitPrefixOp String InitExpression - | InitReference Identifier - | InitArray [InitExpression] - | InitRecord [(Identifier, InitExpression)] - | InitFloat String - | InitNumber String - | InitHexNumber String - | InitString String - | InitChar String - | BuiltInFunction String [InitExpression] - | InitSet [InitExpression] - | InitAddress InitExpression - | InitNull - | InitRange Range - | InitTypeCast Identifier InitExpression - deriving Show +import PascalUnitSyntaxTree knownTypes = ["shortstring", "char", "byte"] @@ -145,7 +55,7 @@ parens pas (option [] parameters) >>= return . FunCall , char '^' >> return Dereference , (brackets pas) (commaSep1 pas $ expression) >>= return . ArrayElement - , (char '.' >> notFollowedBy (char '.')) >> liftM RecordField reference + , (char '.' >> notFollowedBy (char '.')) >> liftM (flip RecordField) reference ] typeCast = do @@ -450,6 +360,7 @@ , char '$' >> many hexDigit >>= \h -> comments >> return (HexNumber h) , char '-' >> expression >>= return . PrefixOp "-" , try $ string "nil" >> return Null + , try $ string "not" >> expression >>= return . PrefixOp "not" , reference >>= return . Reference ] "simple expression" @@ -463,7 +374,6 @@ , [ Infix (char '+' >> return (BinOp "+")) AssocLeft , Infix (char '-' >> return (BinOp "-")) AssocLeft ] - , [Prefix (try (string "not") >> return (PrefixOp "not"))] , [ Infix (try (string "<>") >> return (BinOp "<>")) AssocNone , Infix (try (string "<=") >> return (BinOp "<=")) AssocNone , Infix (try (string ">=") >> return (BinOp ">=")) AssocNone