}
                        alphanumSize = 0;
                        symbolSize = 0;
                    } else if (c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z') {
                        if (duplicateTermRemoved && symbolSize > 0) {
                            isSpace = removeLastDuplication(buf, symbolSize, isSpace, termCache);
                        }
                        // alphanum