Copyright | (c) 2018 Composewell Technologies |
---|---|
License | BSD-3-Clause |
Maintainer | streamly@composewell.com |
Stability | experimental |
Portability | GHC |
Safe Haskell | None |
Language | Haskell2010 |
Streams of Strings
lines :: (MonadIO m, IsStream t) => t m Char -> t m (Array Char) Source #
Break a string up into a stream of strings at newline characters. The resulting strings do not contain newlines.
lines = S.lines A.write
>>>
Stream.toList $ Unicode.lines $ Stream.fromList "lines\nthis\nstring\n\n\n"
["lines","this","string","",""]
words :: (MonadIO m, IsStream t) => t m Char -> t m (Array Char) Source #
Break a string up into a stream of strings, which were delimited by characters representing white space.
words = S.words A.write
>>>
Stream.toList $ Unicode.words $ Stream.fromList "A newline\nis considered white space?"
["A","newline","is","considered","white","space?"]
unlines :: (MonadIO m, IsStream t) => t m (Array Char) -> t m Char Source #
Flattens the stream of Array Char
, after appending a terminating
newline to each string.
unlines
is an inverse operation to lines
.
>>>
Stream.toList $ Unicode.unlines $ Stream.fromList ["lines", "this", "string"]
"lines\nthis\nstring\n"
unlines = S.unlines A.read
Note that, in general
unlines . lines /= id
unwords :: (MonadAsync m, IsStream t) => t m (Array Char) -> t m Char Source #
Flattens the stream of Array Char
, after appending a separating
space to each string.
unwords
is an inverse operation to words
.
>>>
Stream.toList $ Unicode.unwords $ Stream.fromList ["unwords", "this", "string"]
"unwords this string"
unwords = S.unwords A.read
Note that, in general
unwords . words /= id