conduit-extra-1.1.7.0: Batteries included conduit: adapters for common libraries.

Copyright2011 Michael Snoyman, 2010 John Millikin
LicenseMIT
Safe HaskellNone
LanguageHaskell98

Data.Conduit.Attoparsec

Contents

Description

Consume attoparsec parsers via conduit.

This code was taken from attoparsec-enumerator and adapted for conduits.

Synopsis

Sink

sinkParser :: (AttoparsecInput a, MonadThrow m) => Parser a b -> Consumer a m b Source

Convert an Attoparsec Parser into a Sink. The parser will be streamed bytes until it returns Done or Fail.

If parsing fails, a ParseError will be thrown with monadThrow.

Since 0.5.0

sinkParserEither :: (AttoparsecInput a, Monad m) => Parser a b -> Consumer a m (Either ParseError b) Source

Same as sinkParser, but we return an Either type instead of raising an exception.

Since 1.1.5

Conduit

conduitParser :: (AttoparsecInput a, MonadThrow m) => Parser a b -> Conduit a m (PositionRange, b) Source

Consume a stream of parsed tokens, returning both the token and the position it appears at. This function will raise a ParseError on bad input.

Since 0.5.0

conduitParserEither :: (Monad m, AttoparsecInput a) => Parser a b -> Conduit a m (Either ParseError (PositionRange, b)) Source

Same as conduitParser, but we return an Either type instead of raising an exception.

Types

data ParseError Source

The context and message from a Fail value.

data Position Source

Constructors

Position 

Fields

posLine :: !Int
 
posCol :: !Int
 

Classes

class AttoparsecInput a Source

A class of types which may be consumed by an Attoparsec parser.

Minimal complete definition

parseA, feedA, empty, isNull, notEmpty, getLinesCols, stripFromEnd