Safe Haskell	None
Language	Haskell2010

GHC.Data.ShortText

Contents

ShortText
- Conversion to and from String
- Operations

Description

An Unicode string for internal GHC use. Meant to replace String in places where being a lazy linked is not very useful and a more memory efficient data structure is desirable.

Synopsis

newtype ShortText = ShortText {
- contents :: ShortByteString
}
pack :: String -> ShortText
unpack :: ShortText -> String
codepointLength :: ShortText -> Int
byteLength :: ShortText -> Int
null :: ShortText -> Bool
splitFilePath :: ShortText -> [ShortText]
head :: ShortText -> Char
stripPrefix :: ShortText -> ShortText -> Maybe ShortText

ShortText

newtype ShortText Source #

A ShortText is a modified UTF-8 encoded string meant for short strings like file paths, module descriptions, etc.

Constructors

ShortText
Fields contents :: ShortByteString

Instances

Instances details

Eq ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods (==) :: ShortText -> ShortText -> Bool # (/=) :: ShortText -> ShortText -> Bool #
Ord ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods compare :: ShortText -> ShortText -> Ordering # (<) :: ShortText -> ShortText -> Bool # (<=) :: ShortText -> ShortText -> Bool # (>) :: ShortText -> ShortText -> Bool # (>=) :: ShortText -> ShortText -> Bool # max :: ShortText -> ShortText -> ShortText # min :: ShortText -> ShortText -> ShortText #
Show ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods showsPrec :: Int -> ShortText -> ShowS # show :: ShortText -> String # showList :: [ShortText] -> ShowS #
IsString ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods fromString :: String -> ShortText #
Semigroup ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods (<>) :: ShortText -> ShortText -> ShortText # sconcat :: NonEmpty ShortText -> ShortText # stimes :: Integral b => b -> ShortText -> ShortText #
Monoid ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods mempty :: ShortText # mappend :: ShortText -> ShortText -> ShortText # mconcat :: [ShortText] -> ShortText #
Binary ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods put :: ShortText -> Put # get :: Get ShortText # putList :: [ShortText] -> Put #
NFData ShortText Source #
Instance details Defined in GHC.Data.ShortText Methods rnf :: ShortText -> () #

Conversion to and from String

pack :: String -> ShortText Source #

O(n) Convert a String into a ShortText.

unpack :: ShortText -> String Source #

O(n) Convert a ShortText into a String.

Operations

codepointLength :: ShortText -> Int Source #

O(n) Returns the length of the ShortText in characters.

byteLength :: ShortText -> Int Source #

O(1) Returns the length of the ShortText in bytes.

null :: ShortText -> Bool Source #

O(1) Test whether the ShortText is the empty string.

splitFilePath :: ShortText -> [ShortText] Source #

O(n) Split a ShortText representing a file path into its components by separating on the file separator characters for this platform.

head :: ShortText -> Char Source #

O(1) Returns the first UTF-8 codepoint in the ShortText. Depending on the string in question, this may or may not be the actual first character in the string due to Unicode non-printable characters.

stripPrefix :: ShortText -> ShortText -> Maybe ShortText Source #

O(n) The stripPrefix function takes two ShortTexts and returns Just the remainder of the second iff the first is its prefix, and otherwise Nothing.