Question about Document.validate

[sbalaji1996]

I have a decently sized xsd file (~7 mb) that I'm using to validate various xml documents that I'm constructing. My code looks something like this

async function validateXML(xmlString) {
    const xsdString = (await fs.readFile(xsdFilePath)).toString();
    const xsd = libxmljs.parseXml(xsdString);
    const xml = libxmljs.parseXml(xmlString);
    xml.validate(xsd);
}

I'm finding that after I invoke validate, the majority of the time spent during validation (a few hundred milliseconds) is in the xmlSchemaParse function here, based on some console statements that I've added to test performance:

libxmljs/lib/document.ts

Line 267 in 6507332

const schema = xmlSchemaParse(parser_ctxt);

My question is - if the xsd file is static, is there a way to provide the library that file (or a reference to that file) once and just have it reference that instead of attempting to parse the xsd every time I invoke validate?

[rchipka]

There isn't currently a way, but we could provide a function to parse and return schema documents then overload Document.validate to accept an already-parsed schema document

[axel-capodaglio]

Hi, is there any update on this?

[CCheminaud]

I have the same need on my side, here is a PR: #656.
Probably it could be improved, I'm open to suggestions.