Struct SpanIndex 

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

Precomputed line-start byte offsets. The line is found in O(log n) (binary search over the line starts); the 1-based char column is then O(line length) (chars().count() over the line prefix, so multi-byte chars count as one).

Implementations

impl<'a> SpanIndex<'a>

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

pub fn src(&self) -> &'a str

The source buffer this index was built from (for anchor_of_subslice).

pub fn line_col(&self, byte_off: usize) -> (usize, usize)

1-based line, 1-based char column for a byte offset (usize, matching core).