Modulebyteslice-0.2.13.2Haskell2010

Data.Bytes.Text.AsciiExt

This module contains functions which operate on supersets of Bytes containing ASCII-encoded text. That is, none of the functions here inspect bytes with a value greater than 127, and do not fail due to the presence of such bytes.

5 values

Packagebyteslice-0.2.13.2
Exports5
LanguageHaskell2010
LicenceBSD-3-Clause
SourceAsciiExt.hs

Line-Oriented IO

2 declarations

valuehFoldLines :: Handle -> a -> (a -> Bytes -> IO a) -> IO a

Perform an action on each line of the input, threading state through the computation. If you do not need to keep a state, see hForLines_.

Lines are extracted with with hGetLine, which does not document its detection algorithm. As of writing (bytestring v0.11.1.0), lines are delimited by a single n character (UNIX-style, as all things should be).

valuehForLines_ :: Handle -> (Bytes -> IO a) -> IO ()

Perform an action on each line of the input, discarding results. To maintain a running state, see hFoldLines.

Standard Handles

valueforLines_ :: (Bytes -> IO a) -> IO ()

hForLines_ over stdin

valuefoldLines :: a -> (a -> Bytes -> IO a) -> IO a

hFoldLines over stdin

Text Manipulation

1 declaration

valuetoLowerU :: Bytes -> ByteArray

O(n) Convert ASCII letters to lowercase. This adds 0x20 to bytes in the range [0x41,0x5A] (A-Z ⇒ a-z) and leaves all other bytes alone. Unconditionally copies the bytes.