node_modules/css-tree/lib/syntax/node/Operator.js

// '/' | '*' | ',' | ':' | '+' | '-'
module.exports = {
    name: 'Operator',
    structure: {
        value: String
    },
    parse: function() {
        var start = this.scanner.tokenStart;

        this.scanner.next();

        return {
            type: 'Operator',
            loc: this.getLocation(start, this.scanner.tokenStart),
            value: this.scanner.substrToCursor(start)
        };
    },
    generate: function(node) {
        this.chunk(node.value);
    }
};