atom/language-c member operator

[tmatijevich]

(No atom/language-c discussion board yet)

How does your dot . operator distinguish between a floating point number and a structure member?

In atom/language-c/grammars/tree-sitter-c.cson line 149, I see you have an explicit string.

'"."': 'keyword.operator.member'

^^^ I'm thinking there's no work done by the tree-sitter grammar when using string literals directly in the atom language.

And on 121 you have your number_literal node for the decimals and floating points.

'number_literal': 'constant.numeric.decimal'

For my floating point numbers, it's matching both my number node and the literal string '"."', highlighting with both selectors constant.numeric and keyword.operator.member even with a precedence on the number node. This ultimately applies the color for the member operators.

[tmatijevich]

I'm thinking it's something to do with the language specificity.
Lines 64-66 of atom/language-c/grammar/tree-sitter-c.cson.

'identifier': [
  {match: '^[A-Z\\d_]+$', scopes: 'constant.other'}
]

tree-sitter's build-in word function.
Line 51 of tree-sitter-c/grammar.js.

word: $ => $.identifier,

[tmatijevich]

Wrapping the number node function in tree-sitter with a token call addresses this distinction.

number: $ => {
  //...
  return token(choice(
  //...
  ))
},