mechanical / automated way to convert VSCode tmLanguage.json to Lezer ?

ide5kllc · November 9, 2022, 11:54pm

Are there any tools to mechanically / automatically convert VSCode tmLanguage.json definitions to Lezer?

For example:

microsoft/vscode/blob/main/extensions/javascript/syntaxes/JavaScript.tmLanguage.json

{
	"information_for_contributors": [
		"This file has been converted from https://github.com/microsoft/TypeScript-TmLanguage/blob/master/TypeScriptReact.tmLanguage",
		"If you want to provide a fix or improvement, please create a pull request against the original repository.",
		"Once accepted there, we are happy to receive an update request."
	],
	"version": "https://github.com/microsoft/TypeScript-TmLanguage/commit/c2744520e325330d0608fc1d1993d7fe98e66202",
	"name": "JavaScript (with React support)",
	"scopeName": "source.js",
	"patterns": [
		{
			"include": "#directives"
		},
		{
			"include": "#statements"
		},
		{
			"include": "#shebang"
		}
	],

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marijn · November 10, 2022, 6:57am

No, those are not at all like context-free grammars, so that’s probably not a thing that can be done.