Function escape_into 

pub fn escape_into<I>(out: &mut [u8], i: I) -> Result<usize, EscapeIntoError>
where
    I: IntoIterator,
    I::Item: Borrow<u8>,

Escape the bytes into the slice.

See crate for the exact rules.

Returns the number of bytes written to the slice.

Errors

If the slice is not large enough to receive the escaped value. No information is provided to support continuing escaping into a new buffer from where it stops. Use the Escape iterator directly if that is needed.