private boolean is00() {
            byte[] last5 = get();
            for (byte b : last5) {
                if (b != 0x00) {
                    return false;
                }
            }
            return true;
        }
Provides a view on the previous 5 bytes
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-cad-module/src/main/java/org/apache/tika/parser/prt/PRTParser.java