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Data.Text.Internal.Fusion.Size

Copyright	(c) Roman Leshchinskiy 2008 (c) Bryan O'Sullivan 2009
License	BSD-style
Maintainer	[email protected]
Stability	experimental
Portability	portable
Safe Haskell	None
Language	Haskell2010

Contents

Sizes
Querying sizes

Description

Warning: this is an internal module, and does not have a stable API or name. Functions in this module may not check or enforce preconditions expected by public modules. Use at your own risk!

Size hints.

data Size Source

A size in UTF-16 code units.

Instances

Instances details

Eq Size
Instance details Defined in Data.Text.Internal.Fusion.Size Methods (==) :: Size -> Size -> Bool Source (/=) :: Size -> Size -> Bool Source
Num Size
Instance details Defined in Data.Text.Internal.Fusion.Size Methods (+) :: Size -> Size -> Size Source (-) :: Size -> Size -> Size Source (*) :: Size -> Size -> Size Source negate :: Size -> Size Source abs :: Size -> Size Source signum :: Size -> Size Source fromInteger :: Integer -> Size Source
Show Size
Instance details Defined in Data.Text.Internal.Fusion.Size Methods showsPrec :: Int -> Size -> ShowS Source show :: Size -> String Source showList :: [Size] -> ShowS Source

Sizes

exactSize :: Int -> Size Source

maxSize :: Int -> Size Source

betweenSize :: Int -> Int -> Size Source

unknownSize :: Size Source

unionSize :: Size -> Size -> Size Source

charSize :: Char -> Size Source

The Size of the given code point.

codePointsSize :: Int -> Size Source

The Size of n code points.

Querying sizes

exactly :: Size -> Maybe Int Source

smaller :: Size -> Size -> Size Source

Minimum of two size hints.

larger :: Size -> Size -> Size Source

Maximum of two size hints.

upperBound :: Int -> Size -> Int Source

Compute the maximum size from a size hint, if possible.

lowerBound :: Int -> Size -> Int Source

Compute the maximum size from a size hint, if possible.

compareSize :: Size -> Size -> Maybe Ordering Source

Determine the ordering relationship between two Sizes, or Nothing in the indeterminate case.

isEmpty :: Size -> Bool Source

© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.8.3/docs/html/libraries/text-1.2.4.0/Data-Text-Internal-Fusion-Size.html