we should support stylesheets with errors

[jogibear9988]

at the monent a styleshee like this:

  * {
  aa;
  display: block;
  }

or this:

  * {
  aa;
  display: block;
  }

crashes the parser. but we should look if we could still continue parseing and return the valid styles (same as the browser does)

[holblin]

Yes, I agree, I wonder if at some point some rewrite might be necessary and maybe have some sort of multi-step parsing that will allow general CSS syntax parsing and then try to specifically give them meaning or generate unknown nodes (so that will OOTB support CSS extensions or new CSS rules as long as they are close to general CSS syntax)

[jogibear9988]

If someone would does a rewrite, we could look as how es-module-shim created a very fast lexer https://guybedford.com/es-module-shims-production-import-maps for ideas how this could be done for css.