A simple library to help you in dealing with bytes, bits and nibbles
BitWiser
Bitwiser is a collection of methods and properties that makes you work with bits
, bytes
and nibbles
a piece of cake
The project is in early stages of development feel free to make pull requests for more funcionalities
FEATURES
- No more bit masking. Access single bit values
- Coverting from bytes array to
Data
and back has never been easier - Print
Data
into hex string - Set, reset, query, toggle each bit
- Subscript
- Chaining methods
- Extensive code coverage
- Multiplatform: iOS, macOS, tvOS, watchOS, Linux, Windows
INSTALLATION
Use Swift package manager.
Add the following dependency to your Package.swift file:
.package(url: "https://github.com/DrAma999/BitWiser.git", from: "0.0.1")
Or simply add the URL from XCode menu Swift packages.
HOW TO USE IT
A Byte
is simply a UInt8
that has been extended to access single bit values.
A Bit
is an enumeration that can assume two values .one
or .zero
.
var value = Byte(0b1010_1010)
let bits = value.bits
print(bits)
// [0, 1, 0, 1, 0, 1, 0, 1]
Note: Bits representation is shown as an array of Bit
where the array index 0 represents the least significant bit
After creating a Byte
you can read in its position in different ways:
Subscript
let bit = value[0]
Method
// Query the value
let bit = value.bit(0)
// Ask if bit is set (equal to one)
let isSet = value.isBitSet(0)
Properties
let bit = value.b0
After creating a mutable Byte
you can write in its position in different ways:
Subscript
value[0] = 1
Method
// Set the specified bit to 1
value.setBit(0)
// Reset the specified bit to 0
value.resetBit(0)
// Toggle the specified bit. If the bit in position zero is one it becomes zero and viceversa
value.resetBit(0)
// Change the value of the specified bit to one
value.changeBit(0, to: .one )
// Chaining modifiers that return a new value without mutating
let newValue = value
.settingBit(0)
.resettingBit(3)
.togglingBit(4)
Properties
value.b0 = .zero
Pretty sure that if you worked in IOT you had an embedded engineer that put some infomration inside a nibble.
With bit wiser you can extract nibbles from a byte:
let value: Byte = 0b01011111
let (msb, lsb) = value.nibbles
There are also a lot of methods and facilities to work with bit bites and nibbles.
CONTRIBUTING
Since I’m working on this project in my spare time any help is appreciated.
Feel free to make a pull request.
THANKS
Icon made by Freepik from www.flaticon.com
LICENSE
MIT License
Copyright (c) 2021 Andrea Finollo
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.