Method isHexEscapeSequence

src/main/java/org/dynjs/parser/js/Lexer.java:523–529

(int start)

    }

    private boolean isHexEscapeSequence(int start) {
        if (start != '\\') {
            return false;
        }

        return (la(2) == 'x' && isHexDigit(la(3)) && isHexDigit(la(4)));
    }

    private boolean isNonEscapeSequence(int start) {
        if (la(3) == '0' && la(4) == '0' && la(5) == '0' && (la(6) == 'A' || la(6) == 'D')) {