Struct LineIndex 

pub struct LineIndex { /* private fields */ }

Precomputed line-start offset table for O(log n) line/column ↔ byte offset conversion.

Implementations

impl LineIndex

pub fn new(text: &str) -> Self

pub fn line_count(&self) -> u32

pub fn text_len(&self) -> u32

pub fn offset_to_position( &self, text: &str, offset: usize, ) -> Result<Position, TextViewError>

Convert a byte offset to a 0-based line/column position.

pub fn position_to_offset( &self, text: &str, position: Position, ) -> Result<usize, TextViewError>

Convert a 0-based line/column position to a byte offset.

pub fn line_range(&self, line: u32) -> Result<TextRange, TextViewError>

Return the byte range of a line excluding its trailing newline.

pub fn line_range_with_newline( &self, line: u32, ) -> Result<TextRange, TextViewError>

Return the byte range of a line including its trailing newline.

pub fn line_of_offset(&self, offset: usize) -> Result<u32, TextViewError>

Return the 0-based line number that contains the given byte offset.

Trait Implementations

impl Clone for LineIndex

fn clone(&self) -> LineIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LineIndex

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

Formats the value using the given formatter.