Text.Colour.Capabilities

Documentation

data TerminalCapabilities

Constructors

WithoutColours

No colours

With8Colours

Only 8 colours

With8BitColours

Only 8-bit colours

With24BitColours

All 24-bit colours

Instances

Eq TerminalCapabilities

Defined in Text.Colour.Capabilities

Methods

(==) :: TerminalCapabilities -> TerminalCapabilities -> Bool

(/=) :: TerminalCapabilities -> TerminalCapabilities -> Bool

Ord TerminalCapabilities

Defined in Text.Colour.Capabilities

Methods

compare :: TerminalCapabilities -> TerminalCapabilities -> Ordering

(<) :: TerminalCapabilities -> TerminalCapabilities -> Bool

(<=) :: TerminalCapabilities -> TerminalCapabilities -> Bool

(>) :: TerminalCapabilities -> TerminalCapabilities -> Bool

(>=) :: TerminalCapabilities -> TerminalCapabilities -> Bool

max :: TerminalCapabilities -> TerminalCapabilities -> TerminalCapabilities

min :: TerminalCapabilities -> TerminalCapabilities -> TerminalCapabilities

Show TerminalCapabilities

Defined in Text.Colour.Capabilities

Methods

showsPrec :: Int -> TerminalCapabilities -> ShowS

show :: TerminalCapabilities -> String

showList :: [TerminalCapabilities] -> ShowS

Generic TerminalCapabilities

Defined in Text.Colour.Capabilities

Associated Types

type Rep TerminalCapabilities :: Type -> Type

Methods

from :: TerminalCapabilities -> Rep TerminalCapabilities x

to :: Rep TerminalCapabilities x -> TerminalCapabilities

type Rep TerminalCapabilities

Defined in Text.Colour.Capabilities

type Rep TerminalCapabilities = D1 ('MetaData "TerminalCapabilities" "Text.Colour.Capabilities" "safe-coloured-text-0.0.0.0-FRMsFtVgSffG4cdOonTFMy" 'False) ((C1 ('MetaCons "WithoutColours" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "With8Colours" 'PrefixI 'False) (U1 :: Type -> Type)) :+: (C1 ('MetaCons "With8BitColours" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "With24BitColours" 'PrefixI 'False) (U1 :: Type -> Type)))

getTerminalCapabilitiesFromEnv :: IO TerminalCapabilities

Try to detect how many colours the terminal can handle.

This is based on the colors capability of the terminfo detected based on the TERM environment variable. If the terminal can handle 8-bit colours and also has the COLORTERM environment variable set to 24bit or truecolor, then this function will return With24BitColours.

getTerminalCapabilitiesFromHandle :: Handle -> IO TerminalCapabilities

Try to detect how many colours a given handle can handle.

This function does the same as getTerminalCapabilitiesFromEnv but returns WithoutColours is not a terminal device.