Example code

Example in CommonJS module format

In this example module a diff-function is exported as the only member of a CommonJS module. The function operates on XML documents, uses the skelmatch algorithm and produces patch files in XML format.

// CommonJS imports
var diffcmd = require('./delta/diff');
var diffmod = require('./delta/diff-skelmatch-factory');
var docmod = require('./delta/doc-xml-factory');
var deltamod = require('./delta/delta-xml-factory');

// Instantiate factory methods
var difffact = new diffmod.DiffSkelmatchFactory();
var docfact = new docmod.DocumentXMLFactory();
var deltafact = new deltamod.DeltaXMLFactory();

module.exports = function(origcontent, changedcontent) {
    // Load documents
    var doc1 = docfact.loadOriginalDocument(origcontent);
    var doc2 = docfact.loadInputDocument(changedcontent);

    // Construct patch
    var d = new diffcmd.Diff(difffact, docfact, deltafact);
    var deltadoc = d.diff(doc1, doc2);

    // Serialize patch
    return deltafact.serializeDocument(deltadoc);
};

Example in AWM module format

In this example module a diff-function is exported as the only member of a CommonJS module. The function operates on XML documents, uses the XCC diff algorithm and produces patch files in XML format.

define([
    './delta/diff',
    './delta/diff-xcc-factory',
    './delta/doc-xml-factory',
    './delta/delta-xml-factory'],
function(diffcmd, diffmod, docmod, deltamod) {
    // Instantiate factory methods
    var difffact = new diffmod.DiffXCCFactory();
    var docfact = new docmod.DocumentXMLFactory();
    var deltafact = new deltamod.DeltaXMLFactory();

    // This module simply exports one XML diff function
    return function(origcontent, changedcontent) {
        // Load documents
        var doc1 = docfact.loadOriginalDocument(origcontent);
        var doc2 = docfact.loadInputDocument(chanchedcontent);

        // Construct patch
        var d = new diffcmd.Diff(difffact, docfact, deltafact);
        var deltadoc = d.diff(doc1, doc2);

        // Serialize patch
        return deltafact.serializeDocument(deltadoc);
    };
});