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mod.rs
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mod.rs
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//! The encoder and decoder of the DEFLATE format and algorithm.
//!
//! The DEFLATE is defined in [RFC-1951](https://tools.ietf.org/html/rfc1951).
//!
//! # Examples
//! ```
//! use core2::io::{Read, Write};
//! use libflate::deflate::{Encoder, Decoder};
//!
//! // Encoding
//! let mut encoder = Encoder::new(Vec::new());
//! encoder.write_all(b"Hello World!".as_ref()).unwrap();
//! let encoded_data = encoder.finish().into_result().unwrap();
//!
//! // Decoding
//! let mut decoder = Decoder::new(&encoded_data[..]);
//! let mut decoded_data = Vec::new();
//! decoder.read_to_end(&mut decoded_data).unwrap();
//!
//! assert_eq!(decoded_data, b"Hello World!");
//! ```
pub use self::decode::Decoder;
pub use self::encode::EncodeOptions;
pub use self::encode::Encoder;
pub use self::encode::DEFAULT_BLOCK_SIZE;
mod decode;
mod encode;
pub(crate) mod symbol;
#[cfg(test)]
pub(crate) mod test_data;
#[derive(Debug, Clone, Copy)]
enum BlockType {
Raw = 0b00,
Fixed = 0b01,
Dynamic = 0b10,
}
#[cfg(test)]
mod tests {
use super::*;
use crate::lz77;
use alloc::vec::Vec;
use core2::io::{Read, Write};
#[test]
fn encode_and_decode_works() {
let plain = (0..lz77::MAX_DISTANCE as u32 * 32)
.map(|i| i as u8)
.collect::<Vec<_>>();
let buffer = Vec::new();
let mut encoder = Encoder::new(buffer);
encoder.write_all(&plain[..]).expect("encode");
let encoded = encoder.finish().into_result().unwrap();
let mut buffer = Vec::new();
let mut decoder = Decoder::new(&encoded[..]);
decoder.read_to_end(&mut buffer).expect("decode");
assert_eq!(buffer, plain);
}
}