pub fn parse_range(header: &str, size: u64) -> RangeOutcomeExpand description
Parse a single-range Range header against a file of size bytes.
Only one range is supported: a multi-range spec is syntactically valid but this implementation has no multipart body to serve it with, so it is treated the same as an unrecognised unit — ignored, not refused with 416 for something the client asked for correctly.