Copyright	(c) Abhinav Gupta 2015
License	BSD3
Maintainer	Abhinav Gupta <mail@abhinavg.net>
Stability	experimental
Safe Haskell	None
Language	Haskell2010

Pinch.Internal.Parser

Description

Implements a basic parser for binary data. The parser does not do any extra book-keeping besides keeping track of the current position in the ByteString.

Synopsis

data Parser a
runParser :: Parser a -> ByteString -> Either String a
runParser' :: Parser a -> ByteString -> Either String (ByteString, a)
int8 :: Parser Int8
word8 :: Parser Word8
int16 :: Parser Int16
int32 :: Parser Int32
int64 :: Parser Int64
int64LE :: Parser Int64
double :: Parser Double
doubleLE :: Parser Double
take :: Int -> Parser ByteString

Documentation

data Parser a Source #

A simple ByteString parser.

Instances

Monad Parser Source #
Instance details Defined in Pinch.Internal.Parser Methods (>>=) :: Parser a -> (a -> Parser b) -> Parser b # (>>) :: Parser a -> Parser b -> Parser b # return :: a -> Parser a # fail :: String -> Parser a #
Functor Parser Source #
Instance details Defined in Pinch.Internal.Parser Methods fmap :: (a -> b) -> Parser a -> Parser b # (<$) :: a -> Parser b -> Parser a #
Applicative Parser Source #
Instance details Defined in Pinch.Internal.Parser Methods pure :: a -> Parser a # (<>) :: Parser (a -> b) -> Parser a -> Parser b # liftA2 :: (a -> b -> c) -> Parser a -> Parser b -> Parser c # (>) :: Parser a -> Parser b -> Parser b # (<*) :: Parser a -> Parser b -> Parser a #

runParser :: Parser a -> ByteString -> Either String a Source #

Run the parser on the given ByteString. Return either the failure message or the result.

runParser' :: Parser a -> ByteString -> Either String (ByteString, a) Source #

Run the parser on the given ByteString. Return either the failure message or the result and any left-over content.

int8 :: Parser Int8 Source #

Produces the next byte and advances the parser.

word8 :: Parser Word8 Source #

Produces the next byte and advances the parser.

int16 :: Parser Int16 Source #

Produces a signed 16-bit integer and advances the parser.

int32 :: Parser Int32 Source #

Produces a signed 32-bit integer and advances the parser.

int64 :: Parser Int64 Source #

Produces a signed 64-bit integer and advances the parser.

int64LE :: Parser Int64 Source #

Produces a signed 64-bit integer (parsed in little endian byte ordering) and advances the parser.

double :: Parser Double Source #

Produces a 64-bit floating point number and advances the parser.

doubleLE :: Parser Double Source #

Produces a 64-bit floating point number (parsed in little endian byte ordering) and advances the parser.

take :: Int -> Parser ByteString Source #

take n gets exactly n bytes or fails the parse.