https://github.com/hathibelagal-dev/leb128

A Dart package that lets you encode and decode LEB128 integers
https://github.com/hathibelagal-dev/leb128

encoding-decoding leb128

Last synced: about 2 months ago
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A Dart package that lets you encode and decode LEB128 integers

• Host: GitHub
• URL: https://github.com/hathibelagal-dev/leb128
• Owner: hathibelagal-dev
• License: apache-2.0
• Created: 2019-02-20T17:03:25.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2023-05-20T18:34:25.000Z (over 1 year ago)
• Last Synced: 2023-08-20T22:29:26.198Z (over 1 year ago)
• Topics: encoding-decoding, leb128
• Language: C++
• Homepage: https://pub.dev/packages/leb128
• Size: 305 KB
• Stars: 5
• Watchers: 0
• Forks: 2
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# LEB128 Encoder/Decoder

This package offers easy-to-use methods that let you encode and decode LEB128 data. LEB128, which is short for **Little Endian Base 128**, is a code compression algorithm that is used in a variety of file formats. The most well-known are WebAssembly's binary `.wasm` and Android's `.dex` files.

## Usage

- You can call the `Leb128.encodeSigned()` method to convert a Dart `int` value into an LEB128 list of bytes. The list is a `Uint8List` object. Use this method for both positive and negative values.

- You can call the `Leb128.encodeUnsigned()` method to convert a Dart `int` value, which is positive, into an LEB128 list of bytes.

- You can call the `Leb128.decodeSigned()` method to convert a `Uint8List` object into a Dart `int` value. Use this method for signed LEB128 integers only.

- You can call the `Leb128.decodeUnsigned()` method to convert a `Uint8List` object into a Dart `int` value. Use this method for unsigned LEB128 integers only.

This package also offers two utility methods named`Leb128.decodeVarint7()` and `Leb128.decodeVaruint7()`, which are easier to use if you need to convert a single byte of data.