tycho 0.1.2

A minimal, self-describing and traversable binary data format designed around rust and the serde data model.
Documentation 
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use tokio::io::AsyncRead;

use crate::error::{TychoError, TychoResult};
use crate::read::async_::func::{read_byte_async, read_bytes_async};
use crate::read::async_::length::read_length_async;

pub(crate) async fn read_string_async<R: AsyncRead + Unpin>(reader: &mut R) -> TychoResult<String> {
    let length = read_length_async(reader).await?;
    match String::from_utf8(read_bytes_async(reader, length).await?) {
        Ok(s) => Ok(s),
        Err(e) => Err(TychoError::StringError(e))
    }
}

pub(crate) async fn read_tstring_async<R: AsyncRead + Unpin>(reader: &mut R) -> TychoResult<String> {
    let mut buffer = Vec::new();
    loop {
        let byte = read_byte_async(reader).await?;
        if byte == 0x00 {
            break;
        }
        buffer.push(byte);
    }
    match String::from_utf8(buffer) {
        Ok(s) => Ok(s),
        Err(e) => Err(TychoError::StringError(e))
    }
}

pub(crate) async fn read_char_async<R: AsyncRead + Unpin>(reader: &mut R) -> TychoResult<char> {
    let mut buffer = Vec::new();

    let byte = read_byte_async(reader).await?;
    if byte >> 7 == 0 {
        buffer.push(byte);
    } else {
        let count = if byte & 0b01000000 == 0x00 { 1 }
        else if byte & 0b00100000 == 0x00 { 2 }
        else if byte & 0b00010000 == 0x00 { 3 }
        else if byte & 0b00001000 == 0x00 { 4 }
        else if byte & 0b00000100 == 0x00 { 5 }
        else if byte & 0b00000010 == 0x00 { 6 }
        else { 0 };

        buffer.extend_from_slice(&read_bytes_async(reader, count).await?);
    }

    match String::from_utf8(buffer) {
        Ok(s) => Ok(s.chars().nth(0).unwrap().clone()), //todo: unwrap :(
        Err(e) => Err(TychoError::StringError(e))
    }
}