parse_that 0.2.1

Zero-copy parser combinator library for Rust
Documentation 
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use std::ops::{Bound, RangeBounds};

pub fn extract_bounds<'a>(bounds: impl RangeBounds<usize> + 'a) -> (usize, usize) {
    let start = match bounds.start_bound() {
        Bound::Included(&n) => n,
        Bound::Excluded(&n) => n + 1,
        Bound::Unbounded => 0,
    };
    let end = match bounds.end_bound() {
        Bound::Included(&n) => n + 1,
        Bound::Excluded(&n) => n,
        Bound::Unbounded => usize::MAX,
    };
    (start, end)
}

pub fn get_cargo_root_path() -> std::path::PathBuf {
    let manifest_dir = std::env::var("CARGO_MANIFEST_DIR").expect("CARGO_MANIFEST_DIR must be set");
    std::path::PathBuf::from(manifest_dir)
}