iteratee-0.2.4: Iteratee-based I/O Source code Contents Index

Data.Iteratee.Base.StreamChunk

Contents Types

Description

Monadic and General Iteratees: incremental input parsers, processors and transformers

Synopsis

class ListLike (c el) el => StreamChunk c el where length :: c el -> Int null :: c el -> Bool cons :: el -> c el -> c el head :: c el -> el tail :: c el -> c el findIndex :: (el -> Bool) -> c el -> Maybe Int splitAt :: Int -> c el -> (c el, c el) dropWhile :: (el -> Bool) -> c el -> c el fromList :: [el] -> c el toList :: c el -> [el] cMap :: StreamChunk c' el' => (el -> el') -> c el -> c' el' class (StreamChunk s el, Storable el) => ReadableChunk s el where readFromPtr :: Ptr el -> Int -> IO (s el)

Types

class ListLike (c el) el => StreamChunk c el where Source

Class of types that can be used to hold chunks of data within Iteratee streams. Methods length :: c el -> Int Source Length of currently available data. null :: c el -> Bool Source Test if the current stream is null. cons :: el -> c el -> c el Source Prepend an element to the front of the data. head :: c el -> el Source Return the first element of the stream. tail :: c el -> c el Source Return the tail of the stream. findIndex :: (el -> Bool) -> c el -> Maybe Int Source First index matching the predicate. splitAt :: Int -> c el -> (c el, c el) Source Split the data at the specified index. dropWhile :: (el -> Bool) -> c el -> c el Source Drop data matching the predicate. fromList :: [el] -> c el Source Create a stream from a list. toList :: c el -> [el] Source Create a list from the stream. cMap :: StreamChunk c' el' => (el -> el') -> c el -> c' el' Source Map a computation over the stream. Instances StreamChunk [] el StreamChunk WrappedByteString Char StreamChunk WrappedByteString Word8

class (StreamChunk s el, Storable el) => ReadableChunk s el where Source

Class of streams which can be filled from a Ptr. Typically these are streams which can be read from a file. The Int parameter is the length of the data in bytes. N.B. The pointer must not be returned or used after readFromPtr completes. Methods readFromPtr :: Ptr el -> Int -> IO (s el) Source Instances Storable el => ReadableChunk [] el ReadableChunk WrappedByteString Char ReadableChunk WrappedByteString Word8

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