62 lines
2.3 KiB
Markdown
62 lines
2.3 KiB
Markdown
# Likewise: A Diffing Library
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> This crate is a fork of [similar](https://github.com/mitsuhiko/similar) library, which, as of 11/9/25, is rather inactive.
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[](https://crates.io/crates/likewise)
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[](https://github.com/frozen/likewise/blob/main/LICENSE)
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[](https://img.shields.io/badge/rust-1.65%2B-orange.svg)
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[](https://docs.rs/likewise)
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Likewise is a dependency free crate for Rust that implements different diffing
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algorithms and high level interfaces for it. It is based on the
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[pijul](https://pijul.org/) implementation of the Patience algorithm and
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inherits some ideas from there. It also incorporates the Myers' diff
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algorithm which was largely written by Brandon Williams. This library was
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built for the [insta snapshot testing library](https://insta.rs).
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```rust
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use likewise::{ChangeTag, TextDiff};
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fn main() {
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let diff = TextDiff::from_lines(
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"Hello World\nThis is the second line.\nThis is the third.",
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"Hallo Welt\nThis is the second line.\nThis is life.\nMoar and more",
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);
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for change in diff.iter_all_changes() {
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let sign = match change.tag() {
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ChangeTag::Delete => "-",
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ChangeTag::Insert => "+",
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ChangeTag::Equal => " ",
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};
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print!("{}{}", sign, change);
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}
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}
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```
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## Screenshot
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## What's in the box?
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* Myers' diff
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* Patience diff
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* Hunt–McIlroy / Hunt–Szymanski LCS diff
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* Diffing on arbitrary comparable sequences
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* Line, word, character and grapheme level diffing
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* Text and Byte diffing
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* Unified diff generation
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## Related Projects
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* [similar](https://github.com/mitsuhiko/similar)
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* [insta](https://insta.rs) snapshot testing library
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* [similar-asserts](https://github.com/mitsuhiko/similar-asserts) assertion library
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## License and Links
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* [Documentation](https://docs.rs/likewise/)
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* [Issue Tracker](https://github.com/barrett-ruth/likewise/issues)
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* [Examples](https://github.com/barrett-ruth/likewise/tree/main/examples)
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* License: [Apache-2.0](https://github.com/barrett-ruth/likewise/blob/main/LICENSE)
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