{
    "extends": ["stylelint-config-standard"],
    "rules": {
        "selector-class-pattern": [
            "^[a-z]([-]?[a-z0-9]+)*(__[a-z0-9]([-]?[a-z0-9]+)*)?(--[a-z0-9]([-]?[a-z0-9]+)*)?$",
            {
                "resolveNestedSelectors": true,
                "message": "Expected class selector \"%s\" to match BEM CSS pattern https://en.bem.info/methodology/css. Selector validation tool: https://regexr.com/3apms"
            }
        ]
    }
}