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/Haskell 8

Data.Text.Internal.Lazy

Copyright (c) 2009 2010 Bryan O'Sullivan
License BSD-style
Maintainer [email protected]
Stability experimental
Portability GHC
Safe Haskell None
Language Haskell98

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!

A module containing private Text internals. This exposes the Text representation and low level construction functions. Modules which extend the Text system may need to use this module.

data Text Source

Constructors

Empty
Chunk !Text Text
Instances
IsList Text

Since: text-1.2.0.0

Instance details

Defined in Data.Text.Lazy

Associated Types

type Item Text :: Type Source

Eq Text
Instance details

Defined in Data.Text.Lazy

Methods

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

(/=) :: Text -> Text -> Bool Source

Data Text

This instance preserves data abstraction at the cost of inefficiency. We omit reflection services for the sake of data abstraction.

This instance was created by copying the updated behavior of Data.Text.Text

Instance details

Defined in Data.Text.Lazy

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Text -> c Text Source

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Text Source

toConstr :: Text -> Constr Source

dataTypeOf :: Text -> DataType Source

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Text) Source

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Text) Source

gmapT :: (forall b. Data b => b -> b) -> Text -> Text Source

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Text -> r Source

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Text -> r Source

gmapQ :: (forall d. Data d => d -> u) -> Text -> [u] Source

gmapQi :: Int -> (forall d. Data d => d -> u) -> Text -> u Source

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Text -> m Text Source

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Text -> m Text Source

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Text -> m Text Source

Ord Text
Instance details

Defined in Data.Text.Lazy

Methods

compare :: Text -> Text -> Ordering Source

(<) :: Text -> Text -> Bool Source

(<=) :: Text -> Text -> Bool Source

(>) :: Text -> Text -> Bool Source

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

max :: Text -> Text -> Text Source

min :: Text -> Text -> Text Source

Read Text
Instance details

Defined in Data.Text.Lazy

Show Text
Instance details

Defined in Data.Text.Lazy

IsString Text
Instance details

Defined in Data.Text.Lazy

Methods

fromString :: String -> Text Source

Semigroup Text

Non-orphan Semigroup instance only defined for base-4.9.0.0 and later; orphan instances for older GHCs are provided by the semigroups package

Since: text-1.2.2.0

Instance details

Defined in Data.Text.Lazy

Methods

(<>) :: Text -> Text -> Text Source

sconcat :: NonEmpty Text -> Text Source

stimes :: Integral b => b -> Text -> Text Source

Monoid Text
Instance details

Defined in Data.Text.Lazy

PrintfArg Text

Only defined for base-4.7.0.0 and later

Since: text-1.2.2.0

Instance details

Defined in Data.Text.Lazy

Binary Text

Since: text-1.2.1.0

Instance details

Defined in Data.Text.Lazy

Methods

put :: Text -> Put Source

get :: Get Text Source

putList :: [Text] -> Put Source

NFData Text
Instance details

Defined in Data.Text.Lazy

Methods

rnf :: Text -> () Source

type Item Text
Instance details

Defined in Data.Text.Lazy

type Item Text = Char

chunk :: Text -> Text -> Text Source

Smart constructor for Chunk. Guarantees the data type invariant.

empty :: Text Source

Smart constructor for Empty.

foldrChunks :: (Text -> a -> a) -> a -> Text -> a Source

Consume the chunks of a lazy Text with a natural right fold.

foldlChunks :: (a -> Text -> a) -> a -> Text -> a Source

Consume the chunks of a lazy Text with a strict, tail-recursive, accumulating left fold.

Data type invariant and abstraction functions

The data type invariant for lazy Text: Every Text is either Empty or consists of non-null Texts. All functions must preserve this, and the QC properties must check this.

strictInvariant :: Text -> Bool Source

Check the invariant strictly.

lazyInvariant :: Text -> Text Source

Check the invariant lazily.

showStructure :: Text -> String Source

Display the internal structure of a lazy Text.

Chunk allocation sizes

defaultChunkSize :: Int Source

Currently set to 16 KiB, less the memory management overhead.

smallChunkSize :: Int Source

Currently set to 128 bytes, less the memory management overhead.

chunkOverhead :: Int Source

The memory management overhead. Currently this is tuned for GHC only.

© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).
https://downloads.haskell.org/~ghc/8.6.1/docs/html/libraries/text-1.2.3.1/Data-Text-Internal-Lazy.html