1 use flate2::bufread::ZlibDecoder;
2 use flate2::write::ZlibEncoder;
3 use flate2::Compression;
4 use std::io;
5 use std::io::prelude::*;
6 
7 // Compress a sample string and print it after transformation.
main()8 fn main() {
9     let mut e = ZlibEncoder::new(Vec::new(), Compression::default());
10     e.write_all(b"Hello World").unwrap();
11     let bytes = e.finish().unwrap();
12     println!("{}", decode_bufreader(bytes).unwrap());
13 }
14 
15 // Uncompresses a Zlib Encoded vector of bytes and returns a string or error
16 // Here &[u8] implements BufRead
decode_bufreader(bytes: Vec<u8>) -> io::Result<String>17 fn decode_bufreader(bytes: Vec<u8>) -> io::Result<String> {
18     let mut z = ZlibDecoder::new(&bytes[..]);
19     let mut s = String::new();
20     z.read_to_string(&mut s)?;
21     Ok(s)
22 }
23