Proper way to inject customTags through the service

[ejfasting]

Hello,

I'm working on an LSP server and I'm testing if i can leverage the parseHtmlDocument from this service.
To do that i need to add some customData/customTags that are recognized by the service, but I'm having some issues figuring out how to inject it properly.

I've tried initializing the languageService witha IHTMLDataProvider object:

// Define custom tags
const customTags = [
	{ name: '<%', kind: 'startTag' },
	{ name: '%>', kind: 'endTag' }
];

// Custom data provider function
const customDataProvider: html.IHTMLDataProvider = {
	getId: () => 'customDataProvider',
	isApplicable: () => true,
	provideTags: () => {
		return customTags.map(tag => ({
			name: tag.name,
			kind: tag.kind,
			selfClosing: false,
			attributes: [] // empty array for attributes
		}));
	},
	provideAttributes: () => [], // empty array for attributes
	provideValues: () => [] // empty array for values
};

// Initialize language service options with custom data provider
const languageServiceOptions: html.LanguageServiceOptions = {
	customDataProviders: [customDataProvider]
};

// Initialize language service
const htmlLs = html.getLanguageService(languageServiceOptions);

What's the proper way of doing it?

//Eivind