Similar：一个 Diffing 库

Similar 是一个针对 Rust 的无依赖项 crate，它实现了不同的 diffing 算法和高级接口。它基于 Patience 算法的 pijul 实现，并从中借鉴了一些想法。它还结合了由 Brandon Williams 大量编写的 Myers diff 算法。此库是为 insta 快照测试库 构建的。

use similar::{ChangeTag, TextDiff};

fn main() {
    let diff = TextDiff::from_lines(
        "Hello World\nThis is the second line.\nThis is the third.",
        "Hallo Welt\nThis is the second line.\nThis is life.\nMoar and more",
    );

    for change in diff.iter_all_changes() {
        let sign = match change.tag() {
            ChangeTag::Delete => "-",
            ChangeTag::Insert => "+",
            ChangeTag::Equal => " ",
        };
        print!("{}{}", sign, change);
    }
}

截图

盒子里有什么？

• Myer's diff
• 耐心 diff
• Hunt–McIlroy / Hunt–Szymanski LCS diff
• 在任意可比较序列上 diff
• 行、单词、字符和字形级别 diff
• 文本和字节 diff
• 生成统一 diff

相关项目

• insta 快照测试库
• similar-asserts 断言库

许可证和链接

• 文档
• 问题跟踪器
• 示例
• 许可证： Apache-2.0