Syntax highlighting of `and`/`or`/`not`/`in` in Starlark

[nicolasstucki]

The following rule matches those keywords but do not result in any highlighting. https://github.com/bazelbuild/vscode-bazel/blob/e5c95e4567a80c82ada48031c9fde5561fc7c957/syntaxes/starlark.tmLanguage.json#L397

These are currently tagged as https://github.com/bazelbuild/vscode-bazel/blob/e5c95e4567a80c82ada48031c9fde5561fc7c957/syntaxes/starlark.tmLanguage.json#L400

[nicolasstucki]

If we change the tag name to the following we get the same highlighting as in a Python file.

- "name": "keyword.operator.logical.starlark" 
+ "name": "keyword.language.logical.starlark"

I am not sure if language is the same category used by the Python extension.

[vogelsgesang]

According to the documentation at https://macromates.com/manual/en/language_grammars (which is referenced by the VSCode docs), keyword.operator.* seems to be the right way to go. I wonder where the keyword.language.* is defined...

[vogelsgesang]

Also VSCode has a lot of mentions of keyword.operator.logical but not a single mention of keyword.language

[nicolasstucki]

I see. My patch probably ended up falling back on keyword and therefore used the same highlighting as in keyword.operator.logical.python. The issue here seems to be that the highlighting of those operators as keywords is special-cased for Python with keyword.operator.logical.python and hence we do not get the same effect with keyword.operator.logical.starlark.

[vogelsgesang]

I wonder if we should use keyword.operator.logical.python.starlark. That way we would inherit the styles from Python by default, but theme authors would still have the option to provide Starlark specific styles, if they wish to do so

[nicolasstucki]

keyword.operator.logical.python.starlark is an interesting approach. If we take this approach would we also change all others .starlark to .python.starlark to inherit all existing highlighings? This would imply changing around 100 names.

[vogelsgesang]

Personally, I would just rename all of them, for consistency. But others might have different opinions... Could you create a PR? And then let's see if anybody dislikes the renaming during the review

[nicolasstucki]

Yes @vogelsgesang, I can create a PR with this change.