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Repl

Struct Repl 

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pub struct Repl<Context, E: Display> { /* private fields */ }
Expand description

Main REPL struct

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impl<Context, E> Repl<Context, E>
where E: Display + From<Error>,

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pub fn new(context: Context) -> Self

Create a new Repl with the given context’s initial value.

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pub fn with_name(self, name: &str) -> Self

Give your Repl a name. This is used in the help summary for the Repl.

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pub fn with_version(self, version: &str) -> Self

Give your Repl a version. This is used in the help summary for the Repl.

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pub fn with_description(self, description: &str) -> Self

Give your Repl a description. This is used in the help summary for the Repl.

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pub fn with_prompt(self, prompt: &'static dyn Display) -> Self

Give your Repl a custom prompt. The default prompt is the Repl name, followed by a >, all in green, followed by a space.

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pub fn with_help_viewer<V: 'static + HelpViewer>(self, help_viewer: V) -> Self

Pass in a custom help viewer

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pub fn with_error_handler( self, handler: fn(error: E, repl: &Repl<Context, E>) -> Result<()>, ) -> Self

Pass in a custom error handler. This is really only for testing - the default error handler simply prints the error to stderr and then returns

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pub fn use_completion(self, value: bool) -> Self

Set whether to use command completion when tab is hit. Defaults to false.

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pub fn add_command(self, command: Command<Context, E>) -> Self

Add a command to your REPL

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pub fn run(&mut self) -> Result<()>

Auto Trait Implementations§

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impl<Context, E> Freeze for Repl<Context, E>
where Context: Freeze,

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impl<Context, E> !RefUnwindSafe for Repl<Context, E>

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impl<Context, E> !Send for Repl<Context, E>

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impl<Context, E> !Sync for Repl<Context, E>

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impl<Context, E> Unpin for Repl<Context, E>
where Context: Unpin,

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impl<Context, E> UnsafeUnpin for Repl<Context, E>
where Context: UnsafeUnpin,

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impl<Context, E> !UnwindSafe for Repl<Context, E>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Paint for T
where T: ?Sized,

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fn fg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the foreground set to value.

This method should be used rarely. Instead, prefer to use color-specific builder methods like red() and green(), which have the same functionality but are pithier.

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Set foreground color to white using fg():

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Set foreground color to white using white().

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fn primary(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Primary].

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println!("{}", value.primary());
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fn fixed(&self, color: u8) -> Painted<&T>

Returns self with the fg() set to [Color :: Fixed].

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println!("{}", value.fixed(color));
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fn rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the fg() set to [Color :: Rgb].

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println!("{}", value.rgb(r, g, b));
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fn black(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Black].

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println!("{}", value.black());
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fn red(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Red].

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println!("{}", value.red());
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fn green(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Green].

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println!("{}", value.green());
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fn yellow(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Yellow].

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println!("{}", value.yellow());
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fn blue(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Blue].

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println!("{}", value.blue());
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fn magenta(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Magenta].

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println!("{}", value.magenta());
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fn cyan(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: Cyan].

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println!("{}", value.cyan());
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fn white(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: White].

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println!("{}", value.white());
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Returns self with the fg() set to [Color :: BrightBlack].

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Returns self with the fg() set to [Color :: BrightRed].

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println!("{}", value.bright_red());
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fn bright_green(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightGreen].

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println!("{}", value.bright_green());
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fn bright_yellow(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightYellow].

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println!("{}", value.bright_yellow());
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fn bright_blue(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightBlue].

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println!("{}", value.bright_blue());
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fn bright_magenta(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightMagenta].

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println!("{}", value.bright_magenta());
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fn bright_cyan(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightCyan].

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println!("{}", value.bright_cyan());
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fn bright_white(&self) -> Painted<&T>

Returns self with the fg() set to [Color :: BrightWhite].

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println!("{}", value.bright_white());
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fn bg(&self, value: Color) -> Painted<&T>

Returns a styled value derived from self with the background set to value.

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§Example

Set background color to red using fg():

use yansi::{Paint, Color};

painted.bg(Color::Red);

Set background color to red using on_red().

use yansi::Paint;

painted.on_red();
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fn on_primary(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Primary].

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fn on_fixed(&self, color: u8) -> Painted<&T>

Returns self with the bg() set to [Color :: Fixed].

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fn on_rgb(&self, r: u8, g: u8, b: u8) -> Painted<&T>

Returns self with the bg() set to [Color :: Rgb].

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println!("{}", value.on_rgb(r, g, b));
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fn on_black(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Black].

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fn on_red(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Red].

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fn on_green(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Green].

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fn on_yellow(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Yellow].

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println!("{}", value.on_yellow());
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fn on_blue(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Blue].

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fn on_magenta(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Magenta].

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fn on_cyan(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: Cyan].

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fn on_white(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: White].

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fn on_bright_black(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightBlack].

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fn on_bright_red(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightRed].

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fn on_bright_green(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightGreen].

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println!("{}", value.on_bright_green());
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fn on_bright_yellow(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightYellow].

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println!("{}", value.on_bright_yellow());
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fn on_bright_blue(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightBlue].

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println!("{}", value.on_bright_blue());
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fn on_bright_magenta(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightMagenta].

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println!("{}", value.on_bright_magenta());
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fn on_bright_cyan(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightCyan].

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println!("{}", value.on_bright_cyan());
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fn on_bright_white(&self) -> Painted<&T>

Returns self with the bg() set to [Color :: BrightWhite].

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fn attr(&self, value: Attribute) -> Painted<&T>

Enables the styling Attribute value.

This method should be used rarely. Instead, prefer to use attribute-specific builder methods like bold() and underline(), which have the same functionality but are pithier.

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Make text bold using attr():

use yansi::{Paint, Attribute};

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Make text bold using using bold().

use yansi::Paint;

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Returns self with the attr() set to [Attribute :: Bold].

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Returns self with the attr() set to [Attribute :: Dim].

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fn italic(&self) -> Painted<&T>

Returns self with the attr() set to [Attribute :: Italic].

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fn underline(&self) -> Painted<&T>

Returns self with the attr() set to [Attribute :: Underline].

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Returns self with the attr() set to [Attribute :: Blink].

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Returns self with the attr() set to [Attribute :: RapidBlink].

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Returns self with the attr() set to [Attribute :: Invert].

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Returns self with the attr() set to [Attribute :: Conceal].

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Returns self with the attr() set to [Attribute :: Strike].

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Enables the yansi Quirk value.

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Enable wrapping using .quirk():

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Enable wrapping using wrap().

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Returns self with the quirk() set to [Quirk :: Mask].

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Returns self with the quirk() set to [Quirk :: Wrap].

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Returns self with the quirk() set to [Quirk :: Linger].

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👎Deprecated since 1.0.1:

renamed to resetting() due to conflicts with Vec::clear(). The clear() method will be removed in a future release.

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Returns self with the quirk() set to [Quirk :: Resetting].

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Returns self with the quirk() set to [Quirk :: Bright].

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Returns self with the quirk() set to [Quirk :: OnBright].

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fn whenever(&self, value: Condition) -> Painted<&T>

Conditionally enable styling based on whether the Condition value applies. Replaces any previous condition.

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Enable styling painted only when both stdout and stderr are TTYs:

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where Self: Sized,

Create a new Painted with a default Style. Read more
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where S: Into<Style>,

Apply a style wholesale to self. Any previous style is replaced. Read more
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where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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Performs the conversion.
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where U: TryFrom<T>,

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The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.