Hello all!
Is it possible to get the number of bytes parsed from nom
? I am trying to use nom
inside an implementation of tokio_io::codec::Decoder
and I need to know how many bytes were parsed in order to remove them from a growing BytesMut
.
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Doesn't nom return both what bytes we're parsed and the remaining slice? You can just call .len()
on that no?
2 Likes
nom
parsers return the parsed object which could be of any type. For example nom::be_u64 parses a big-endian u64
and returns a u64
, not 8 bytes.
You know what? I think taking the len()
of the original BytesMut
and subtracting the len()
of the unparsed slice might give me the length of the parsed slice.
Thanks @cbreeden