Function rledecode_hqx

crates/stdlib/src/binascii.rs:715–744

(s: ArgAsciiBuffer)

    #[pyfunction]
    fn rledecode_hqx(s: ArgAsciiBuffer) -> PyResult<Vec<u8>> {
        const RUN_CHAR: u8 = 0x90; //b'\x90'
        s.with_ref(|buffer| {
            let len = buffer.len();
            let mut out_data = Vec::<u8>::with_capacity(len);
            let mut idx = 0;

            out_data.push(buffer[idx]);
            idx += 1;

            while idx < len {
                if buffer[idx] == RUN_CHAR {
                    if buffer[idx + 1] == 0 {
                        out_data.push(RUN_CHAR);
                    } else {
                        let ch = buffer[idx - 1];
                        let range = buffer[idx + 1];
                        idx += 1;
                        for _ in 1..range {
                            out_data.push(ch);
                        }
                    }
                } else {
                    out_data.push(buffer[idx]);
                }
                idx += 1;
            }
            Ok(out_data)
        })
    }

    #[pyfunction]
    fn a2b_uu(s: ArgAsciiBuffer, vm: &VirtualMachine) -> PyResult<Vec<u8>> {