Struct PositionFinder 

pub struct PositionFinder<'a> { /* private fields */ }

Resolves many byte indices into the same text efficiently.

Building a PositionFinder precomputes the offset of every line start, so each position lookup is O(log lines) instead of O(text len).

use index_to_position::PositionFinder;

let finder = PositionFinder::new("foo\nbar\nbaz");
assert_eq!((finder.position(0).line, finder.position(9).line), (0, 2));

Implementations

impl<'a> PositionFinder<'a>

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

Build a finder over text producing zero-based positions.

pub fn with_options(text: &'a str, options: Options) -> Self

Build a finder over text with the given Options.

pub fn position(&self, index: usize) -> Position

Resolve a byte index to a Position.

Panics

Panics if index is greater than the text length.

Trait Implementations

impl<'a> Clone for PositionFinder<'a>

fn clone(&self) -> PositionFinder<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for PositionFinder<'a>

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

Formats the value using the given formatter.