pub fn parse_locus(name: &str) -> Option<(Box<str>, u64, u64)>Expand description
Parse a row name as (chr, start, end). Accepts either
chr1:1000-2000, 1:1000-2000, chr1_1000_2000, or 1_1000_2000.
Returns None for anything that doesn’t match — those names pass
through the overlap pass untouched.