css and script bodies should be optional

[Dave Anderson]

Thanks for writing this parser! I'm using it to make an emacs templ mode, and while working on it I saw that css and script functions that have no body get marked as parse errors by treesitter:

css noStyle() {}

script noScript() {}

According to the upstream templ parser, these definitions are valid. Obviously they're a bit useless, but when you're defining a new css/script func, with the current grammar the entire function gets marked as a syntax error briefly while you're typing, until you start writing a body.

I'm still a noob at tree-sitter, but I think a correct fix would be to make the css and script body elements zero-or-one in the grammar?

[Dave Anderson]

Oops, sorry, brain fart: css already accepts empty bodies in the grammar, it's only script that errors. Sorry!

[Vincent Rischmann]

Hi, thanks for reporting the issue.

I'll look into it.