slice-diff-patch 1.2.4

This crate provides the Change enum as an abstraction for diff::Result, lcs_diff::DiffResult, and wu_diff::DiffResult; the diff_changes(), diff_diff(), lcs_changes(), lcs_diff(), wu_changes(), and wu_diff() functions to calculate or process diffs between a and b slices via LCS (Longest Common Subsequence) or Wu diff algorithms into a Vec<Change>, the patch() function to reproduce b from the a slice and Vec<Change>, and the insert() and remove() functions to enable writing a custom changes function.

use slice_diff_patch::*;

let a = vec!["one", "TWO", "three", "four"];
let b = vec!["zero", "one", "two", "four"];

let diff = diff_diff(&a, &b);
assert_eq!(
    diff,
    vec![
        Change::Insert((0, "zero")),
        Change::Remove(2),
        Change::Update((2, "two")),
    ],
);
assert_eq!(patch(&a, &diff), b);

let lcs = lcs_diff(&a, &b);
assert_eq!(
    lcs,
    vec![
        Change::Insert((0, "zero")),
        Change::Update((2, "two")),
        Change::Remove(3),
    ],
);
assert_eq!(patch(&a, &lcs), b);

let wu = wu_diff(&a, &b);
assert_eq!(
    wu,
    vec![
        Change::Insert((0, "zero")),
        Change::Remove(2),
        Change::Update((2, "two")),
    ],
);
assert_eq!(patch(&a, &wu), b);