Struct TabPolicy 

pub struct TabPolicy { /* private fields */ }

A fixed-width replacement for one tab during text layout.

A policy without a marker produces width spaces. A policy with a marker writes that printable text first and pads its right side with spaces until the replacement occupies width cells. Literal tabs are preserved only by the non-layout text renderer; resolved views never contain them.

Implementations

impl TabPolicy

pub const fn spaces(width: u16) -> Self

Replaces each tab with width spaces.

pub fn with_marker( width: u16, marker: impl Into<String>, ) -> Result<Self, InvalidTabMarker>

Replaces each tab with marker, padded on the right to width cells.

An empty marker is canonicalized to no marker. Other markers must be printable text on one line, have no zero-width graphemes, and fit inside the requested width.

pub const fn width(&self) -> u16

Returns the fixed cell width of one replacement.

pub fn marker(&self) -> Option<&str>

Returns the optional visible marker written before the padding.

Trait Implementations

impl Clone for TabPolicy

fn clone(&self) -> TabPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TabPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TabPolicy

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for TabPolicy

fn eq(&self, other: &TabPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for TabPolicy

impl StructuralPartialEq for TabPolicy