Utilties for Char-based iteratee processing.
- type Stream = StreamG  Char
- type Iteratee m a = IterateeG  Char m a
- type IterateeM m a = IterateeGM  Char m a
- type EnumeratorM m a = EnumeratorGM  Char m a
- type Line = String
- line :: Monad m => IterateeM m (Either Line Line)
- print_lines :: IterateeGM  Line IO ()
- enum_lines :: Monad m => IterateeG  Line m a -> IterateeGM  Char m (IterateeG  Line m a)
- enum_words :: Monad m => IterateeG  String m a -> IterateeGM  Char m (IterateeG  String m a)
- module Data.Iteratee.Base
A particular instance of StreamG: the stream of characters. This stream is used by many input parsers.
Word and Line processors
Read the line of text from the stream The line can be terminated by CR, LF or CRLF. Return (Right Line) if successful. Return (Left Line) if EOF or a stream error were encountered before the terminator is seen. The returned line is the string read so far.
Print lines as they are received. This is the first
with non-trivial actions during chunk processing
Convert the stream of characters to the stream of lines, and apply the given iteratee to enumerate the latter. The stream of lines is normally terminated by the empty line. When the stream of characters is terminated, the stream of lines is also terminated, abnormally. This is the first proper iteratee-enumerator: it is the iteratee of the character stream and the enumerator of the line stream.
Convert the stream of characters to the stream of words, and apply the given iteratee to enumerate the latter. Words are delimited by white space. This is the analogue of List.words One should keep in mind that enum_words is a more general, monadic function.