Enum CursorSaveStrategy 

pub enum CursorSaveStrategy {
    Dec,
    Ansi,
    Emulated,
}

Strategy for cursor save/restore operations.

Different terminals support different cursor save/restore mechanisms. This enum allows selecting the appropriate strategy based on terminal capabilities.

Variants

Dec

DEC save/restore (ESC 7 / ESC 8).

The preferred strategy for most terminals. Saves cursor position, attributes, and character set.

Ansi

ANSI save/restore (CSI s / CSI u).

Fallback for terminals where DEC sequences have issues. Only saves cursor position, not attributes.

Emulated

Emulated save/restore using position tracking and CUP.

Last resort that works on any terminal supporting cursor positioning. Requires the caller to provide current position when saving.

Implementations

impl CursorSaveStrategy

pub fn detect(caps: &TerminalCapabilities) -> Self

Detect the best strategy for the current environment.

Uses terminal capabilities to choose the most reliable strategy.

pub const fn save_sequence(&self) -> Option<&'static [u8]>

Get the save escape sequence for this strategy.

Returns None for Emulated strategy (no escape sequence needed).

pub const fn restore_sequence(&self) -> Option<&'static [u8]>

Get the restore escape sequence for this strategy.

Returns None for Emulated strategy (uses CUP instead).

Trait Implementations

impl Clone for CursorSaveStrategy

fn clone(&self) -> CursorSaveStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CursorSaveStrategy

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

Formats the value using the given formatter.

impl Default for CursorSaveStrategy

fn default() -> CursorSaveStrategy

Returns the “default value” for a type.

impl PartialEq for CursorSaveStrategy

fn eq(&self, other: &CursorSaveStrategy) -> 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 Copy for CursorSaveStrategy

impl Eq for CursorSaveStrategy

impl StructuralPartialEq for CursorSaveStrategy