#bit #pattern

bitpattern

bitwise pattern matching and extracting

1 unstable release

0.1.0 Jul 17, 2020

#1123 in Rust patterns

Download history 142/week @ 2021-07-06 68/week @ 2021-07-13 134/week @ 2021-07-20 87/week @ 2021-07-27 94/week @ 2021-08-03 78/week @ 2021-08-10 83/week @ 2021-08-17 98/week @ 2021-08-24 85/week @ 2021-08-31 169/week @ 2021-09-07 143/week @ 2021-09-14 72/week @ 2021-09-21 121/week @ 2021-09-28 227/week @ 2021-10-05 168/week @ 2021-10-12 150/week @ 2021-10-19

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Used in 3 crates (via h264-profile-level-id)

MIT/Apache

9KB
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bitpattern

bitwise pattern matching and extracting

Actions Status Crates.io Docs.rs

Usage

[dependencies]
bitpattern = "0.1.0"

Example

    let x = 0xacu8; // 10101100

    // '0' means the bit must be 0.
    // '1' means the bit must be 1.
    // '_' can be uses as separator.
    assert_eq!(bitpattern!("1010_1100", x), Some(()));
    assert_eq!(bitpattern!("1010_0100", x), None);

    // '?' means the bit can be 0 or 1.
    assert_eq!(bitpattern!("1?10_1?00", x), Some(()));

    // Other charactors can be used for extracting.
    // 'a' extracts a single bit.
    assert_eq!(bitpattern!("1a10_1100", x), Some(0));
    assert_eq!(bitpattern!("10a0_1100", x), Some(1));

    // Multi-bit extracting by continuous charactors.
    assert_eq!(bitpattern!("1aaa_a100", x), Some(5));

    // Multiple extracting.
    assert_eq!(bitpattern!("1aa0_aa00", x), Some((1, 3)));

    // If the extracting fields are adjacent, the different charactors can be used.
    assert_eq!(bitpattern!("1aab_bccc", x), Some((1, 1, 4)));

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies

~210KB

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