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Data.Text.Internal.Fusion.Size

Copyright (c) Roman Leshchinskiy 2008
(c) Bryan O'Sullivan 2009
License BSD-style
Maintainer bos@serpentine.com
Stability experimental
Portability portable
Safe Haskell Safe-Inferred
Language Haskell2010

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-8 code units (which is bytes).

Instances
Instances details
Num Size Source
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 Source
Instance details

Defined in Data.Text.Internal.Fusion.Size

Methods

showsPrec :: Int -> Size -> ShowS Source

show :: Size -> String Source

showList :: [Size] -> ShowS Source
Eq Size Source
Instance details

Defined in Data.Text.Internal.Fusion.Size

Methods

(==) :: Size -> Size -> Bool Source

(/=) :: Size -> Size -> Bool 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 minimum 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/9.4.2/docs/libraries/text-2.0.1/Data-Text-Internal-Fusion-Size.html