Wrong tokenization of extended scss class names

[croccifixio]

• VSCode Version: Code 1.17.2 (b813d12, 2017-10-16T13:57:00.652Z)
• OS Version: Linux x64 4.13.0-16-generic

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Steps to Reproduce:

1. Create a class rule in an SCSS file.
2. Extend the class using nesting and an &.
3. Begin the name of the extension to the class with 2 or more hyphens.

Based on the above screenshot, __element is tokenized as punctuation.definition.entity.css, which I suppose is alright.

However, --modifier is tokenized as variable.css which can lead to unsightly styling issues if the two tokens are styled differently in a particular theme (see the screenshot above).

Reproduces without extensions: Yes

[mxschmitt]

We appreciate it, that you want to contribute, but please read the information in the file header:
https://github.com/Microsoft/vscode/blob/80efcf5fdee32f7249ad23011a2abc4254fc19de/extensions/scss/syntaxes/scss.json#L2-L6
So create a PR there. :)

[aeschli]

This issue was moved to atom/language-sass#241