Struct ClusterEntry 

pub struct ClusterEntry {
    pub byte_start: u32,
    pub byte_end: u32,
    pub grapheme_index: u32,
    pub cell_start: u32,
    pub cell_width: u8,
}

A single entry in the cluster map, representing one grapheme cluster.

Fields

byte_start: u32

Start byte offset in the source string (inclusive).

byte_end: u32

End byte offset in the source string (exclusive).

grapheme_index: u32

Grapheme index (0-based position among graphemes).

cell_start: u32

Start visual cell column (inclusive).

cell_width: u8

Display width in cells (1 for normal, 2 for wide CJK/emoji).

Implementations

impl ClusterEntry

pub fn byte_range(&self) -> Range<usize>

The byte range of this cluster.

pub fn cell_range(&self) -> Range<usize>

The cell range of this cluster (start..start+width).

pub fn cell_end(&self) -> u32

End cell column (exclusive).

Trait Implementations

impl Clone for ClusterEntry

fn clone(&self) -> ClusterEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClusterEntry

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

Formats the value using the given formatter.

impl PartialEq for ClusterEntry

fn eq(&self, other: &ClusterEntry) -> 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 ClusterEntry

impl Eq for ClusterEntry

impl StructuralPartialEq for ClusterEntry