Selecting multiple NamespaceNodes throws 'Unexpected: could not determine node order'

[marklagendijk]

const xpath = require('xpath');
const DOMParser = require('xmldom').DOMParser;

const xml = '<book xmlns:book1="http://example.com/book1" xmlns:book2="http://example.com/book2"><title>Harry Potter</title></book>';
const document = new DOMParser().parseFromString(xml);
const nodes = xpath.select('/*/namespace::*', document);

console.log(nodes[0].localName + ': ' + nodes[0].firstChild.data);
console.log('Node: ' + nodes[0].toString());

Throws

Error: Unexpected: could not determine node order
    at nodeOrder (/test/node_modules/xpath/xpath.js:3021:11)
    at AVLTree.add (/test/node_modules/xpath/xpath.js:3029:10)
    at XNodeSet.buildTree (/test/node_modules/xpath/xpath.js:3147:23)
    at XNodeSet.toArray (/test/node_modules/xpath/xpath.js:3188:23)
    at new XPathResult (/test/node_modules/xpath/xpath.js:4391:20)
    at XPathExpression.evaluate (/test/node_modules/xpath/xpath.js:4316:9)
    at Object.exports.selectWithResolver (/test/node_modules/xpath/xpath.js:4738:26)
    at Object.exports.select (/test/node_modules/xpath/xpath.js:4718:17)
    at Object.<anonymous> (/test/test.js:6:21)
    at Module._compile (module.js:652:30)

The issue is that the function nodeOrder is not able to determine in which order it should return multiple NamespaceNodes, and therefore throws an Error.

[JLRishe]

I'm sorry that it has taken so long to fix this and I imagine the fix is probably no longer relevant to you, but it is fixed now in version 0.0.34. Thank you for reporting it.