add whole word check ("as" hightlighted inside "Database" literal)

[sanzoghenzo]

Hi there, thanks for this plugin!

I just started using it and I noticed a glitch: keywords are highlighted even inside a literal that contains them.

Is it possible to introduce a whole word search to highlight only the real keywords?

[gabeins]

Thanks for the report!

Could you share more context of the diagram so I can reproduce it better please?

It's intriguing because the grammar is the same as the one from https://github.com/monaqa/tree-sitter-mermaid

I just realised that this is the same issue as reported on the original grammar, which I also encountered last year (memory failed me): monaqa/tree-sitter-mermaid#13

So, it's a known issue with the upstream grammar provider. I remember I tried to get a tmLanguage to tree-sitter converter going, but didn't make much progress…