{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DuplicateRecordFields #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE StrictData #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# OPTIONS_GHC -fno-warn-unused-imports #-}
{-# OPTIONS_GHC -fno-warn-unused-matches #-}

-- Derived from AWS service descriptions, licensed under Apache 2.0.

-- |
-- Module      : Amazonka.WAFV2.Types.Regex
-- Copyright   : (c) 2013-2023 Brendan Hay
-- License     : Mozilla Public License, v. 2.0.
-- Maintainer  : Brendan Hay
-- Stability   : auto-generated
-- Portability : non-portable (GHC extensions)
module Amazonka.WAFV2.Types.Regex where

import qualified Amazonka.Core as Core
import qualified Amazonka.Core.Lens.Internal as Lens
import qualified Amazonka.Data as Data
import qualified Amazonka.Prelude as Prelude

-- | A single regular expression. This is used in a RegexPatternSet.
--
-- /See:/ 'newRegex' smart constructor.
data Regex = Regex'
  { -- | The string representing the regular expression.
    Regex -> Maybe Text
regexString :: Prelude.Maybe Prelude.Text
  }
  deriving (Regex -> Regex -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: Regex -> Regex -> Bool
$c/= :: Regex -> Regex -> Bool
== :: Regex -> Regex -> Bool
$c== :: Regex -> Regex -> Bool
Prelude.Eq, ReadPrec [Regex]
ReadPrec Regex
Int -> ReadS Regex
ReadS [Regex]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [Regex]
$creadListPrec :: ReadPrec [Regex]
readPrec :: ReadPrec Regex
$creadPrec :: ReadPrec Regex
readList :: ReadS [Regex]
$creadList :: ReadS [Regex]
readsPrec :: Int -> ReadS Regex
$creadsPrec :: Int -> ReadS Regex
Prelude.Read, Int -> Regex -> ShowS
[Regex] -> ShowS
Regex -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [Regex] -> ShowS
$cshowList :: [Regex] -> ShowS
show :: Regex -> String
$cshow :: Regex -> String
showsPrec :: Int -> Regex -> ShowS
$cshowsPrec :: Int -> Regex -> ShowS
Prelude.Show, forall x. Rep Regex x -> Regex
forall x. Regex -> Rep Regex x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep Regex x -> Regex
$cfrom :: forall x. Regex -> Rep Regex x
Prelude.Generic)

-- |
-- Create a value of 'Regex' with all optional fields omitted.
--
-- Use <https://hackage.haskell.org/package/generic-lens generic-lens> or <https://hackage.haskell.org/package/optics optics> to modify other optional fields.
--
-- The following record fields are available, with the corresponding lenses provided
-- for backwards compatibility:
--
-- 'regexString', 'regex_regexString' - The string representing the regular expression.
newRegex ::
  Regex
newRegex :: Regex
newRegex = Regex' {$sel:regexString:Regex' :: Maybe Text
regexString = forall a. Maybe a
Prelude.Nothing}

-- | The string representing the regular expression.
regex_regexString :: Lens.Lens' Regex (Prelude.Maybe Prelude.Text)
regex_regexString :: Lens' Regex (Maybe Text)
regex_regexString = forall s a b t. (s -> a) -> (s -> b -> t) -> Lens s t a b
Lens.lens (\Regex' {Maybe Text
regexString :: Maybe Text
$sel:regexString:Regex' :: Regex -> Maybe Text
regexString} -> Maybe Text
regexString) (\s :: Regex
s@Regex' {} Maybe Text
a -> Regex
s {$sel:regexString:Regex' :: Maybe Text
regexString = Maybe Text
a} :: Regex)

instance Data.FromJSON Regex where
  parseJSON :: Value -> Parser Regex
parseJSON =
    forall a. String -> (Object -> Parser a) -> Value -> Parser a
Data.withObject
      String
"Regex"
      ( \Object
x ->
          Maybe Text -> Regex
Regex' forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> (Object
x forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
Data..:? Key
"RegexString")
      )

instance Prelude.Hashable Regex where
  hashWithSalt :: Int -> Regex -> Int
hashWithSalt Int
_salt Regex' {Maybe Text
regexString :: Maybe Text
$sel:regexString:Regex' :: Regex -> Maybe Text
..} =
    Int
_salt forall a. Hashable a => Int -> a -> Int
`Prelude.hashWithSalt` Maybe Text
regexString

instance Prelude.NFData Regex where
  rnf :: Regex -> ()
rnf Regex' {Maybe Text
regexString :: Maybe Text
$sel:regexString:Regex' :: Regex -> Maybe Text
..} = forall a. NFData a => a -> ()
Prelude.rnf Maybe Text
regexString

instance Data.ToJSON Regex where
  toJSON :: Regex -> Value
toJSON Regex' {Maybe Text
regexString :: Maybe Text
$sel:regexString:Regex' :: Regex -> Maybe Text
..} =
    [Pair] -> Value
Data.object
      ( forall a. [Maybe a] -> [a]
Prelude.catMaybes
          [(Key
"RegexString" forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
Data..=) forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
Prelude.<$> Maybe Text
regexString]
      )