Struct Mapper

pub struct Mapper { /* private fields */ }

A mapper that translates offset:length bytes to 1-based line:row characters.

Implementations

impl Mapper

pub fn new_utf16(source: &str, one_based: bool) -> Mapper

Creates a new Mapper that remembers where each line starts and ends.

Uses UTF-16 character sizes for positions.

pub fn new_utf8(source: &str, one_based: bool) -> Mapper

Uses UTF-8 character sizes for positions.

pub fn offset(&self, position: Position) -> Option<TextSize>

pub fn text_range(&self, range: Range) -> Option<TextRange>

pub fn position(&self, offset: TextSize) -> Option<Position>

pub fn range(&self, range: TextRange) -> Option<Range>

pub fn mappings( &self, ) -> (&BTreeMap<TextSize, Position>, &BTreeMap<Position, TextSize>)

pub fn line_count(&self) -> usize

pub fn all_range(&self) -> Range

Trait Implementations

impl Clone for Mapper

fn clone(&self) -> Mapper

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mapper

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

Formats the value using the given formatter.