Language.Fortran.Parser.Utils

Simple module to provide functions that read Fortran literals

Documentation

readReal :: String -> Maybe Double

Convert a Fortran literal Real into a Haskell Double.

readInteger :: String -> Maybe Integer

Convert a Fortran literal Integer into a Haskell Integer.

parseRealLiteral :: String -> RealLit

Parse a Fortran literal real to its constituent parts.

data RealLit

A REAL literal may have an optional exponent and kind.

The value can be retrieved as a Double by using these parts.

Constructors

RealLit

Fields

• realLitValue :: String
• realLitExponent :: Maybe Exponent
• realLitKindParam :: Maybe KindParam

Instances

Eq RealLit

Defined in Language.Fortran.Parser.Utils

Methods

(==) :: RealLit -> RealLit -> Bool

(/=) :: RealLit -> RealLit -> Bool

Ord RealLit

Defined in Language.Fortran.Parser.Utils

Methods

compare :: RealLit -> RealLit -> Ordering

(<) :: RealLit -> RealLit -> Bool

(<=) :: RealLit -> RealLit -> Bool

(>) :: RealLit -> RealLit -> Bool

(>=) :: RealLit -> RealLit -> Bool

max :: RealLit -> RealLit -> RealLit

min :: RealLit -> RealLit -> RealLit

Show RealLit

Defined in Language.Fortran.Parser.Utils

Methods

showsPrec :: Int -> RealLit -> ShowS

show :: RealLit -> String

showList :: [RealLit] -> ShowS

data Exponent

An exponent is an exponent letter (E, D) and a value (with an optional sign).

Constructors

Exponent

Fields

• expLetter :: ExponentLetter
• expSign :: Maybe NumSign
• expNum :: Int

Instances

Eq Exponent

Defined in Language.Fortran.Parser.Utils

Methods

(==) :: Exponent -> Exponent -> Bool

(/=) :: Exponent -> Exponent -> Bool

Ord Exponent

Defined in Language.Fortran.Parser.Utils

Methods

compare :: Exponent -> Exponent -> Ordering

(<) :: Exponent -> Exponent -> Bool

(<=) :: Exponent -> Exponent -> Bool

(>) :: Exponent -> Exponent -> Bool

(>=) :: Exponent -> Exponent -> Bool

max :: Exponent -> Exponent -> Exponent

min :: Exponent -> Exponent -> Exponent

Show Exponent

Defined in Language.Fortran.Parser.Utils

Methods

showsPrec :: Int -> Exponent -> ShowS

show :: Exponent -> String

showList :: [Exponent] -> ShowS

data NumSign

Constructors

SignPos

SignNeg

Instances

Eq NumSign

Defined in Language.Fortran.Parser.Utils

Methods

(==) :: NumSign -> NumSign -> Bool

(/=) :: NumSign -> NumSign -> Bool

Ord NumSign

Defined in Language.Fortran.Parser.Utils

Methods

compare :: NumSign -> NumSign -> Ordering

(<) :: NumSign -> NumSign -> Bool

(<=) :: NumSign -> NumSign -> Bool

(>) :: NumSign -> NumSign -> Bool

(>=) :: NumSign -> NumSign -> Bool

max :: NumSign -> NumSign -> NumSign

min :: NumSign -> NumSign -> NumSign

Show NumSign

Defined in Language.Fortran.Parser.Utils

Methods

showsPrec :: Int -> NumSign -> ShowS

show :: NumSign -> String

showList :: [NumSign] -> ShowS

data ExponentLetter

Constructors

ExpLetterD

ExpLetterE

Instances

Eq ExponentLetter

Defined in Language.Fortran.Parser.Utils

Methods

(==) :: ExponentLetter -> ExponentLetter -> Bool

(/=) :: ExponentLetter -> ExponentLetter -> Bool

Ord ExponentLetter

Defined in Language.Fortran.Parser.Utils

Methods

compare :: ExponentLetter -> ExponentLetter -> Ordering

(<) :: ExponentLetter -> ExponentLetter -> Bool

(<=) :: ExponentLetter -> ExponentLetter -> Bool

(>) :: ExponentLetter -> ExponentLetter -> Bool

(>=) :: ExponentLetter -> ExponentLetter -> Bool

max :: ExponentLetter -> ExponentLetter -> ExponentLetter

min :: ExponentLetter -> ExponentLetter -> ExponentLetter

Show ExponentLetter

Defined in Language.Fortran.Parser.Utils

Methods

showsPrec :: Int -> ExponentLetter -> ShowS

show :: ExponentLetter -> String

showList :: [ExponentLetter] -> ShowS