text-1.2.4.1: An efficient packed Unicode text type.
Copyright (c) 2009 2010 Bryan O'Sullivan
License BSD-style
Maintainer bos@serpentine.com
Stability experimental
Portability GHC
Safe Haskell None
Language Haskell2010

Data.Text.Internal.Lazy

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.

Synopsis

Documentation

data Text Source #

Instances

Instances details
IsList Text Source #

Since: 1.2.0.0

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Defined in Data.Text.Lazy

Associated Types

type Item Text Source #

Eq Text Source #
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Defined in Data.Text.Lazy

Data Text Source #

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

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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 :: forall r r'. (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 Source #
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Defined in Data.Text.Lazy

Read Text Source #
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Defined in Data.Text.Lazy

Show Text Source #
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IsString Text Source #
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Defined in Data.Text.Lazy

Semigroup Text Source #

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: 1.2.2.0

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Defined in Data.Text.Lazy

Monoid Text Source #
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PrintfArg Text Source #

Only defined for base-4.7.0.0 and later

Since: 1.2.2.0

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Defined in Data.Text.Lazy

Binary Text Source #

Since: 1.2.1.0

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Defined in Data.Text.Lazy

NFData Text Source #
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Defined in Data.Text.Lazy

Lift Text Source #

This instance has similar considerations to the Data instance: it preserves abstraction at the cost of inefficiency.

Since: 1.2.4.0

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Defined in Data.Text.Lazy

type Item Text Source #
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Defined in Data.Text.Lazy

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 Text s. 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.