fixed_buffer/
deframe_line.rs

1use super::MalformedInputError;
2
3/// Deframes lines that are terminated by either `b'\n'` or `b"\r\n"`.
4///
5/// See [`read_frame`](struct.FixedBuf.html#method.read_frame).
6///
7/// # Errors
8/// Returns an error when `data` does not contain `b'\n'` or `b"\r\n"`.
9pub fn deframe_line(
10    data: &[u8],
11) -> Result<(usize, Option<core::ops::Range<usize>>), MalformedInputError> {
12    for n in 0..data.len() {
13        if data[n] == b'\n' {
14            let payload_start_incl = 0;
15            let payload_end_excl = if n > 0 && data[n - 1] == b'\r' {
16                n - 1
17            } else {
18                n
19            };
20            let payload_range = payload_start_incl..payload_end_excl;
21            let frame_len = n + 1;
22            return Ok((frame_len, Some(payload_range)));
23        }
24    }
25    Ok((0, None))
26}
fixed_buffer/deframe_line.rs

fixed_buffer/
deframe_line.rs
