Function decimalExponentSign

lib/parse.js:532–540

()

    },

    decimalExponentSign () {
        if (util.isDigit(c)) {
            buffer += read()
            lexState = 'decimalExponentInteger'
            return
        }

        throw invalidChar(read())
    },

    decimalExponentInteger () {
        if (util.isDigit(c)) {