Trait terminal_io::WriteTerminal

pub trait WriteTerminal: Write + Terminal {
    fn color_support(&self) -> TerminalColorSupport;
    fn color_preference(&self) -> bool;
    fn is_output_terminal(&self) -> bool;

    fn color_default(&self) -> bool { ... }
}

An extension trait for output streams connected to terminals.

Required Methods

fn color_support(&self) -> TerminalColorSupport

Test whether this output stream supports color control codes.

fn color_preference(&self) -> bool

Test whether the user has indicated a preference for color output by default. Respects the NO_COLOR environment variable where applicable.

fn is_output_terminal(&self) -> bool

Test whether the output is connected to a terminal.

Also known as isatty.

Provided Methods

fn color_default(&self) -> bool

Test whether color should be used on this terminal by default. This includes both whether color is supported and whether the user has not indicated a preference otherwise.

Implementors

impl<Inner: Write> WriteTerminal for NeverTerminalWriter<Inner>

impl<Inner: Write> WriteTerminal for TerminalWriter<Inner>

impl<Inner: Duplex + Read + Write> WriteTerminal for TerminalDuplexer<Inner>

impl<Inner: Duplex + Write> WriteTerminal for NeverTerminalDuplexer<Inner>