INNER CODE UNIT · Rust

read_gtf_impl

abdenlab/oxbow · r-oxbow/src/rust/src/lib.rs:500

pub fn read_gtf_impl(
    path: &str,
    region: Option<String>,
    index: Option<String>,
    fields: Option<Vec<String>>,
    scan_rows: Option<usize>,
) -> Vec<u8> {
    let compressed = path.ends_with(".gz");
    let scan_rows = Some(scan_rows.unwrap_or(1024));
    let reader = std::fs::File::open(path)
        .map(|f| BufReader::with_capacity(BUFFER_SIZE_BYTES, f))
        .unwrap();

    let ipc = if let Some(region) = region {
        let index_path = index.unwrap_or(format!("{}.tbi", path));
        let index = noodles::tabix::fs::read(index_path).expect("Could not read TBI index file.");
        let region = Region::parse(&region, CoordSystem::OneClosed).unwrap();
        let bgzf_reader = noodles::bgzf::io::Reader::new(reader);

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