diff-match-patch-typescript

import { DiffMatchPatch, DiffOperation } from 'diff-match-patch-typescript'; const dmp = new DiffMatchPatch(); // Example 1: Compute a diff between two strings const text1 = 'The quick brown fox jumps over the lazy dog.'; const text2 = 'A quick brown cat jumps over the agile fox.'; console.log('--- Diff Example ---'); const diffs = dmp.diff_main(text1, text2); console.log('Diff result:', JSON.stringify(diffs)); // Expected output: array of [operation, text] tuples // e.g., [[-1,"The"],[1,"A"],[0," quick brown "],[-1,"fox"],[1,"cat"],[0," jumps over the "]...] // Example 2: Find a match within a text const mainText = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.'; const pattern = 'consectetur'; const startIndex = 0; console.log('\n--- Match Example ---'); const position = dmp.match_main(mainText, pattern, startIndex); console.log(`Pattern '${pattern}' found at position: ${position}`); // Expected output: 28 (index of 'c' in 'consectetur') // Example 3: Apply a patch to a text const originalText = 'Hello World'; const newDesiredText = 'Hello TypeScript'; console.log('\n--- Patch Example ---'); const patches = dmp.patch_make(originalText, newDesiredText); console.log('Generated patches:', JSON.stringify(patches)); const [patchedText, results] = dmp.patch_apply(patches, originalText); console.log(`Original: '${originalText}', Patched: '${patchedText}', Success: ${results[0]}`); // Expected output: newText: "Hello TypeScript", results: [true]