New Rule: no-irregular-whitespace

[thecalamiity]

Rule details

Disallow irregular whitespaces.

What type of rule is this?

Warns about a potential problem

Example code

    .firstClass .secondClass {}
/**            ↑
 * Irregular whitespace. Selector would fail to match '.firstClass' */

Prior Art

no-irregular-whitespace

Participation

• I am willing to submit a pull request to implement this rule.

Additional comments

Various whitespace characters can be inputted by programmers by mistake for example from copying or keyboard shortcuts. Pressing Alt + Space on macOS adds in a non breaking space character for example.

[nzakas]

Thanks for the suggestion. I don't think it makes sense to implement this rule. We already have no-irregular-whitespace in ESLint, and there's probably a way to make it generic so it can be used in any language. I'd rather focus on that instead of duplicating the logic for each language.