base-compat-0.11.1: A compatibility layer for base

Safe HaskellSafe
LanguageHaskell98

Text.Read.Compat

Contents

Synopsis

The Read class

class Read a where #

Minimal complete definition

readsPrec | readPrec

Methods

readsPrec :: Int -> ReadS a #

readList :: ReadS [a] #

readPrec :: ReadPrec a #

readListPrec :: ReadPrec [a] #

Instances
Read Bool 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Bool #

readList :: ReadS [Bool] #

readPrec :: ReadPrec Bool #

readListPrec :: ReadPrec [Bool] #

Read Char 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Char #

readList :: ReadS [Char] #

readPrec :: ReadPrec Char #

readListPrec :: ReadPrec [Char] #

Read Double 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Double #

readList :: ReadS [Double] #

readPrec :: ReadPrec Double #

readListPrec :: ReadPrec [Double] #

Read Float 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Float #

readList :: ReadS [Float] #

readPrec :: ReadPrec Float #

readListPrec :: ReadPrec [Float] #

Read Int 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Int #

readList :: ReadS [Int] #

readPrec :: ReadPrec Int #

readListPrec :: ReadPrec [Int] #

Read Int8 
Instance details

Defined in GHC.Int

Methods

readsPrec :: Int -> ReadS Int8 #

readList :: ReadS [Int8] #

readPrec :: ReadPrec Int8 #

readListPrec :: ReadPrec [Int8] #

Read Int16 
Instance details

Defined in GHC.Int

Methods

readsPrec :: Int -> ReadS Int16 #

readList :: ReadS [Int16] #

readPrec :: ReadPrec Int16 #

readListPrec :: ReadPrec [Int16] #

Read Int32 
Instance details

Defined in GHC.Int

Methods

readsPrec :: Int -> ReadS Int32 #

readList :: ReadS [Int32] #

readPrec :: ReadPrec Int32 #

readListPrec :: ReadPrec [Int32] #

Read Int64 
Instance details

Defined in GHC.Int

Methods

readsPrec :: Int -> ReadS Int64 #

readList :: ReadS [Int64] #

readPrec :: ReadPrec Int64 #

readListPrec :: ReadPrec [Int64] #

Read Integer 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Integer #

readList :: ReadS [Integer] #

readPrec :: ReadPrec Integer #

readListPrec :: ReadPrec [Integer] #

Read Natural 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Natural #

readList :: ReadS [Natural] #

readPrec :: ReadPrec Natural #

readListPrec :: ReadPrec [Natural] #

Read Ordering 
Instance details

Defined in GHC.Read

Read Word 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word #

readList :: ReadS [Word] #

readPrec :: ReadPrec Word #

readListPrec :: ReadPrec [Word] #

Read Word8 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word8 #

readList :: ReadS [Word8] #

readPrec :: ReadPrec Word8 #

readListPrec :: ReadPrec [Word8] #

Read Word16 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word16 #

readList :: ReadS [Word16] #

readPrec :: ReadPrec Word16 #

readListPrec :: ReadPrec [Word16] #

Read Word32 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word32 #

readList :: ReadS [Word32] #

readPrec :: ReadPrec Word32 #

readListPrec :: ReadPrec [Word32] #

Read Word64 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Word64 #

readList :: ReadS [Word64] #

readPrec :: ReadPrec Word64 #

readListPrec :: ReadPrec [Word64] #

Read () 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS () #

readList :: ReadS [()] #

readPrec :: ReadPrec () #

readListPrec :: ReadPrec [()] #

Read Lexeme 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Lexeme #

readList :: ReadS [Lexeme] #

readPrec :: ReadPrec Lexeme #

readListPrec :: ReadPrec [Lexeme] #

Read Any 
Instance details

Defined in Data.Semigroup.Internal

Methods

readsPrec :: Int -> ReadS Any #

readList :: ReadS [Any] #

readPrec :: ReadPrec Any #

readListPrec :: ReadPrec [Any] #

Read All 
Instance details

Defined in Data.Semigroup.Internal

Methods

readsPrec :: Int -> ReadS All #

readList :: ReadS [All] #

readPrec :: ReadPrec All #

readListPrec :: ReadPrec [All] #

Read Version 
Instance details

Defined in Data.Version

Methods

readsPrec :: Int -> ReadS Version #

readList :: ReadS [Version] #

readPrec :: ReadPrec Version #

readListPrec :: ReadPrec [Version] #

Read Void 
Instance details

Defined in Data.Void

Methods

readsPrec :: Int -> ReadS Void #

readList :: ReadS [Void] #

readPrec :: ReadPrec Void #

readListPrec :: ReadPrec [Void] #

Read IntPtr 
Instance details

Defined in Foreign.Ptr

Methods

readsPrec :: Int -> ReadS IntPtr #

readList :: ReadS [IntPtr] #

readPrec :: ReadPrec IntPtr #

readListPrec :: ReadPrec [IntPtr] #

Read WordPtr 
Instance details

Defined in Foreign.Ptr

Methods

readsPrec :: Int -> ReadS WordPtr #

readList :: ReadS [WordPtr] #

readPrec :: ReadPrec WordPtr #

readListPrec :: ReadPrec [WordPtr] #

Read GeneralCategory 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS GeneralCategory #

readList :: ReadS [GeneralCategory] #

readPrec :: ReadPrec GeneralCategory #

readListPrec :: ReadPrec [GeneralCategory] #

Read ExitCode 
Instance details

Defined in GHC.IO.Exception

Methods

readsPrec :: Int -> ReadS ExitCode #

readList :: ReadS [ExitCode] #

readPrec :: ReadPrec ExitCode #

readListPrec :: ReadPrec [ExitCode] #

Read a => Read [a] 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS [a] #

readList :: ReadS [[a]] #

readPrec :: ReadPrec [a] #

readListPrec :: ReadPrec [[a]] #

Read a => Read (Maybe a) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (Maybe a) #

readList :: ReadS [Maybe a] #

readPrec :: ReadPrec (Maybe a) #

readListPrec :: ReadPrec [Maybe a] #

(Integral a, Read a) => Read (Ratio a) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (Ratio a) #

readList :: ReadS [Ratio a] #

readPrec :: ReadPrec (Ratio a) #

readListPrec :: ReadPrec [Ratio a] #

Read a => Read (NonEmpty a) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (NonEmpty a) #

readList :: ReadS [NonEmpty a] #

readPrec :: ReadPrec (NonEmpty a) #

readListPrec :: ReadPrec [NonEmpty a] #

Read a => Read (Dual a) 
Instance details

Defined in Data.Semigroup.Internal

Methods

readsPrec :: Int -> ReadS (Dual a) #

readList :: ReadS [Dual a] #

readPrec :: ReadPrec (Dual a) #

readListPrec :: ReadPrec [Dual a] #

Read a => Read (First a) 
Instance details

Defined in Data.Monoid

Methods

readsPrec :: Int -> ReadS (First a) #

readList :: ReadS [First a] #

readPrec :: ReadPrec (First a) #

readListPrec :: ReadPrec [First a] #

Read a => Read (Identity a) 
Instance details

Defined in Data.Functor.Identity

Methods

readsPrec :: Int -> ReadS (Identity a) #

readList :: ReadS [Identity a] #

readPrec :: ReadPrec (Identity a) #

readListPrec :: ReadPrec [Identity a] #

Read a => Read (Last a) 
Instance details

Defined in Data.Monoid

Methods

readsPrec :: Int -> ReadS (Last a) #

readList :: ReadS [Last a] #

readPrec :: ReadPrec (Last a) #

readListPrec :: ReadPrec [Last a] #

Read a => Read (Product a) 
Instance details

Defined in Data.Semigroup.Internal

Methods

readsPrec :: Int -> ReadS (Product a) #

readList :: ReadS [Product a] #

readPrec :: ReadPrec (Product a) #

readListPrec :: ReadPrec [Product a] #

Read a => Read (Sum a) 
Instance details

Defined in Data.Semigroup.Internal

Methods

readsPrec :: Int -> ReadS (Sum a) #

readList :: ReadS [Sum a] #

readPrec :: ReadPrec (Sum a) #

readListPrec :: ReadPrec [Sum a] #

Read a => Read (ZipList a) 
Instance details

Defined in Control.Applicative

Methods

readsPrec :: Int -> ReadS (ZipList a) #

readList :: ReadS [ZipList a] #

readPrec :: ReadPrec (ZipList a) #

readListPrec :: ReadPrec [ZipList a] #

Read a => Read (Complex a) 
Instance details

Defined in Data.Complex

Methods

readsPrec :: Int -> ReadS (Complex a) #

readList :: ReadS [Complex a] #

readPrec :: ReadPrec (Complex a) #

readListPrec :: ReadPrec [Complex a] #

Read a => Read (First a) 
Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (First a) #

readList :: ReadS [First a] #

readPrec :: ReadPrec (First a) #

readListPrec :: ReadPrec [First a] #

Read a => Read (Last a) 
Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (Last a) #

readList :: ReadS [Last a] #

readPrec :: ReadPrec (Last a) #

readListPrec :: ReadPrec [Last a] #

Read a => Read (Max a) 
Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (Max a) #

readList :: ReadS [Max a] #

readPrec :: ReadPrec (Max a) #

readListPrec :: ReadPrec [Max a] #

Read a => Read (Min a) 
Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (Min a) #

readList :: ReadS [Min a] #

readPrec :: ReadPrec (Min a) #

readListPrec :: ReadPrec [Min a] #

Read a => Read (Option a) 
Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (Option a) #

readList :: ReadS [Option a] #

readPrec :: ReadPrec (Option a) #

readListPrec :: ReadPrec [Option a] #

Read m => Read (WrappedMonoid m) 
Instance details

Defined in Data.Semigroup

(Read a, Read b) => Read (Either a b) 
Instance details

Defined in Data.Either

Methods

readsPrec :: Int -> ReadS (Either a b) #

readList :: ReadS [Either a b] #

readPrec :: ReadPrec (Either a b) #

readListPrec :: ReadPrec [Either a b] #

(Read a, Read b) => Read (a, b) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b) #

readList :: ReadS [(a, b)] #

readPrec :: ReadPrec (a, b) #

readListPrec :: ReadPrec [(a, b)] #

(Ix a, Read a, Read b) => Read (Array a b) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (Array a b) #

readList :: ReadS [Array a b] #

readPrec :: ReadPrec (Array a b) #

readListPrec :: ReadPrec [Array a b] #

Read (Proxy t) 
Instance details

Defined in Data.Proxy

Methods

readsPrec :: Int -> ReadS (Proxy t) #

readList :: ReadS [Proxy t] #

readPrec :: ReadPrec (Proxy t) #

readListPrec :: ReadPrec [Proxy t] #

(Read a, Read b) => Read (Arg a b) 
Instance details

Defined in Data.Semigroup

Methods

readsPrec :: Int -> ReadS (Arg a b) #

readList :: ReadS [Arg a b] #

readPrec :: ReadPrec (Arg a b) #

readListPrec :: ReadPrec [Arg a b] #

(Read a, Read b, Read c) => Read (a, b, c) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c) #

readList :: ReadS [(a, b, c)] #

readPrec :: ReadPrec (a, b, c) #

readListPrec :: ReadPrec [(a, b, c)] #

Read (f a) => Read (Alt f a) 
Instance details

Defined in Data.Semigroup.Internal

Methods

readsPrec :: Int -> ReadS (Alt f a) #

readList :: ReadS [Alt f a] #

readPrec :: ReadPrec (Alt f a) #

readListPrec :: ReadPrec [Alt f a] #

Read (f a) => Read (Ap f a) 
Instance details

Defined in Data.Monoid

Methods

readsPrec :: Int -> ReadS (Ap f a) #

readList :: ReadS [Ap f a] #

readPrec :: ReadPrec (Ap f a) #

readListPrec :: ReadPrec [Ap f a] #

Read a => Read (Const a b) 
Instance details

Defined in Data.Functor.Const

Methods

readsPrec :: Int -> ReadS (Const a b) #

readList :: ReadS [Const a b] #

readPrec :: ReadPrec (Const a b) #

readListPrec :: ReadPrec [Const a b] #

Coercible a b => Read (Coercion a b) 
Instance details

Defined in Data.Type.Coercion

Methods

readsPrec :: Int -> ReadS (Coercion a b) #

readList :: ReadS [Coercion a b] #

readPrec :: ReadPrec (Coercion a b) #

readListPrec :: ReadPrec [Coercion a b] #

a ~ b => Read (a :~: b) 
Instance details

Defined in Data.Type.Equality

Methods

readsPrec :: Int -> ReadS (a :~: b) #

readList :: ReadS [a :~: b] #

readPrec :: ReadPrec (a :~: b) #

readListPrec :: ReadPrec [a :~: b] #

(Read a, Read b, Read c, Read d) => Read (a, b, c, d) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d) #

readList :: ReadS [(a, b, c, d)] #

readPrec :: ReadPrec (a, b, c, d) #

readListPrec :: ReadPrec [(a, b, c, d)] #

(Read1 f, Read1 g, Read a) => Read (Product f g a) 
Instance details

Defined in Data.Functor.Product

Methods

readsPrec :: Int -> ReadS (Product f g a) #

readList :: ReadS [Product f g a] #

readPrec :: ReadPrec (Product f g a) #

readListPrec :: ReadPrec [Product f g a] #

(Read1 f, Read1 g, Read a) => Read (Sum f g a) 
Instance details

Defined in Data.Functor.Sum

Methods

readsPrec :: Int -> ReadS (Sum f g a) #

readList :: ReadS [Sum f g a] #

readPrec :: ReadPrec (Sum f g a) #

readListPrec :: ReadPrec [Sum f g a] #

a ~~ b => Read (a :~~: b) 
Instance details

Defined in Data.Type.Equality

Methods

readsPrec :: Int -> ReadS (a :~~: b) #

readList :: ReadS [a :~~: b] #

readPrec :: ReadPrec (a :~~: b) #

readListPrec :: ReadPrec [a :~~: b] #

(Read a, Read b, Read c, Read d, Read e) => Read (a, b, c, d, e) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e) #

readList :: ReadS [(a, b, c, d, e)] #

readPrec :: ReadPrec (a, b, c, d, e) #

readListPrec :: ReadPrec [(a, b, c, d, e)] #

(Read1 f, Read1 g, Read a) => Read (Compose f g a) 
Instance details

Defined in Data.Functor.Compose

Methods

readsPrec :: Int -> ReadS (Compose f g a) #

readList :: ReadS [Compose f g a] #

readPrec :: ReadPrec (Compose f g a) #

readListPrec :: ReadPrec [Compose f g a] #

(Read a, Read b, Read c, Read d, Read e, Read f) => Read (a, b, c, d, e, f) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f) #

readList :: ReadS [(a, b, c, d, e, f)] #

readPrec :: ReadPrec (a, b, c, d, e, f) #

readListPrec :: ReadPrec [(a, b, c, d, e, f)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g) => Read (a, b, c, d, e, f, g) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g) #

readList :: ReadS [(a, b, c, d, e, f, g)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h) => Read (a, b, c, d, e, f, g, h) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h) #

readList :: ReadS [(a, b, c, d, e, f, g, h)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i) => Read (a, b, c, d, e, f, g, h, i) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i, Read j) => Read (a, b, c, d, e, f, g, h, i, j) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i, j) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i, j)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i, j) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i, j)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i, Read j, Read k) => Read (a, b, c, d, e, f, g, h, i, j, k) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i, j, k) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i, j, k)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i, j, k) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i, j, k)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i, Read j, Read k, Read l) => Read (a, b, c, d, e, f, g, h, i, j, k, l) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i, j, k, l) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i, j, k, l)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i, j, k, l) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i, j, k, l)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i, Read j, Read k, Read l, Read m) => Read (a, b, c, d, e, f, g, h, i, j, k, l, m) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i, j, k, l, m) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i, j, k, l, m)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i, j, k, l, m) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i, j, k, l, m)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i, Read j, Read k, Read l, Read m, Read n) => Read (a, b, c, d, e, f, g, h, i, j, k, l, m, n) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i, j, k, l, m, n) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i, j, k, l, m, n) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] #

(Read a, Read b, Read c, Read d, Read e, Read f, Read g, Read h, Read i, Read j, Read k, Read l, Read m, Read n, Read o) => Read (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) #

readList :: ReadS [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] #

readPrec :: ReadPrec (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) #

readListPrec :: ReadPrec [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] #

type ReadS a = String -> [(a, String)] #

Haskell 2010 functions

reads :: Read a => ReadS a #

read :: Read a => String -> a #

readParen :: Bool -> ReadS a -> ReadS a #

New parsing functions

data Lexeme #

Instances
Eq Lexeme 
Instance details

Defined in Text.Read.Lex

Methods

(==) :: Lexeme -> Lexeme -> Bool #

(/=) :: Lexeme -> Lexeme -> Bool #

Read Lexeme 
Instance details

Defined in GHC.Read

Methods

readsPrec :: Int -> ReadS Lexeme #

readList :: ReadS [Lexeme] #

readPrec :: ReadPrec Lexeme #

readListPrec :: ReadPrec [Lexeme] #

Show Lexeme 
Instance details

Defined in Text.Read.Lex

lexP :: ReadPrec Lexeme #

parens :: ReadPrec a -> ReadPrec a #

readListPrecDefault :: Read a => ReadPrec [a] #

readMaybe :: Read a => String -> Maybe a #