Now that we understand our data representation and errors, lets write our first parser! As mentioned several times,RESP is a word based protocol. So lets write a word parser! The only thing we care about is finding theposition (index) of the next CLRF.
As this is infallible, we don't necessary need to use the
RedisResult
Image exif editor 5 0 0 download. type. So our function can have the following signature:2012 Chevrolet Cruze LS 1.8L L4 - Flex Catalog; New Vehicle; Search All Vehicles; Clear Recent Vehicles; Search Bar 2. ダウンロードリンクを修正してください jj78o.CopyLess.2.12.1.dmg Supreme. Downloadchik, 申し訳ありませんが、修正 Vasilyok. よし!:) 発見! Machi.
So we'll take the tokio provided buffer
buf
, and our current position pos
,and if we can, output Some((next_pos, BufSplit))
. We'll use burntsushi's fantastic memchr
crate to accelerate searching for CLRF (rn
):![Copyless 1 8 45 Copyless 1 8 45](https://blogs.riverdale.edu/lit/files/2018/12/Screenshot-2018-12-17-at-1.07.38-PM.png)
Great! We can now efficiently grab individual words from our input buffer. Even better, simple strings and errors are simple type transformations of this:
![Copyless 1 8 4 x 4 Copyless 1 8 4 x 4](https://copyless.net/wp-content/uploads/2017/01/Favorites_compressed.png)
If that syntax isn't super familiar, both of the above are equivalent to:
So all we're doing is wrapping the
BufSplit
returned by word
in the appropriate RedisBufSplit
type.Copyless 1 8 45
Copyless 1 8 4 X 4
Nice! So our easy types are out of the way. We now need to parse ints, bulk strings, and finally arrays.