11 releases
Uses old Rust 2015
0.3.8 | Sep 5, 2023 |
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0.3.7 | Apr 26, 2023 |
0.3.6 | Apr 3, 2022 |
0.3.5 | Jan 6, 2022 |
0.1.0 | Aug 9, 2016 |
#8 in Parser tooling
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BitReader
BitReader is a helper type to extract strings of bits from a slice of bytes.
Here is how you read first a single bit, then three bits and finally four bits from a byte buffer:
use bitreader::BitReader;
let slice_of_u8 = &[0b1000_1111];
let mut reader = BitReader::new(slice_of_u8);
// You obviously should use try! or some other error handling mechanism here
let a_single_bit = reader.read_u8(1).unwrap(); // 1
let more_bits = reader.read_u8(3).unwrap(); // 0
let last_bits_of_byte = reader.read_u8(4).unwrap(); // 0b1111
You can naturally read bits from longer buffer of data than just a single byte.
As you read bits, the internal cursor of BitReader moves on along the stream of bits. Big endian format is assumed when reading the multi-byte values. BitReader supports reading maximum of 64 bits at a time (with read_u64).
License
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.