vendor/flate2-0.2.20/examples/gzdecoder-bufread.rs

   1 extern crate flate2;
   2
   3 use std::io::prelude::*;
   4 use std::io;
   5 use flate2::Compression;
   6 use flate2::write::GzEncoder;
   7 use flate2::bufread::GzDecoder;
   8
   9 // Compress a sample string and print it after transformation.
  10 fn main() {
  11     let mut e = GzEncoder::new(Vec::new(), Compression::Default);
  12     e.write(b"Hello World").unwrap();
  13     let bytes = e.finish().unwrap();
  14     println!("{}", decode_reader(bytes).unwrap());
  15 }
  16
  17 // Uncompresses a Gz Encoded vector of bytes and returns a string or error
  18 // Here &[u8] implements BufRead
  19 fn decode_reader(bytes: Vec<u8>) -> io::Result<String> {
  20     let mut gz = GzDecoder::new(&bytes[..])?;
  21     let mut s = String::new();
  22     gz.read_to_string(&mut s)?;
  23     Ok(s)
  24 }