diff-match-patch

What is diff-match-patch?

The diff-match-patch library offers robust algorithms to perform the operations required for synchronizing plain text. With diff-match-patch, you can compute character-based diffs, efficient patch application, and real-time merging of text documents. This library is useful for text editors, version control systems, and for applications that need to handle text patching and diff operations.

What are diff-match-patch's main functionalities?

Diff

Computes the difference between two texts and returns the result. It can also clean up the diff for a more human-readable format.

const DiffMatchPatch = require('diff-match-patch');
const dmp = new DiffMatchPatch();
const diff = dmp.diff_main('Hello World', 'Hallo Welt');
dmp.diff_cleanupSemantic(diff);
console.log(diff);

Patch

Creates and applies patches to a text. Patches can be used to transform text to its updated version efficiently.

const DiffMatchPatch = require('diff-match-patch');
const dmp = new DiffMatchPatch();
const patches = dmp.patch_make('Hello World', 'Hallo Welt');
const results = dmp.patch_apply(patches, 'Hello World');
console.log(results);

Match

Finds the best match of a shorter text within a longer one. This can be used for fuzzy searching or auto-correction.

const DiffMatchPatch = require('diff-match-patch');
const dmp = new DiffMatchPatch();
const match = dmp.match_main('Hello World', 'ell', 1);
console.log(match);

Other packages similar to diff-match-patch

jsdiff

jsdiff (also known as 'diff') is a library that provides a set of functions for calculating text differences and generating text patches. It is similar to diff-match-patch but focuses more on the diffing aspect and does not include the match and patch functionalities.

fast-diff

fast-diff is a simple and efficient library for computing text differences. It is faster and less feature-rich compared to diff-match-patch, which offers a more comprehensive set of tools for handling diffs, patches, and matches.

google-diff-match-patch

google-diff-match-patch is the original library that diff-match-patch npm package is based on. It provides the same functionality but is designed for use in a browser environment, whereas diff-match-patch is adapted for use with Node.js.

README

diff-match-patch

npm package for https://code.google.com/p/google-diff-match-patch/

Installation

npm install diff-match-patch

API

https://code.google.com/p/google-diff-match-patch/wiki/API

var DiffMatchPatch = require('diff-match-patch');
var dmp = new DiffMatchPatch();
//use the methods that dmp has
//see: https://code.google.com/p/google-diff-match-patch/wiki/API

//You can also use the following properties:

DiffMatchPatch.DIFF_DELETE = -1;
DiffMatchPatch.DIFF_INSERT = 1;
DiffMatchPatch.DIFF_EQUAL = 0;

License

http://www.apache.org/licenses/LICENSE-2.0