if (buf.length() == 0) {
            return false;
        }
        return buf.charAt(buf.length() - 1) == ' ';
    }

    private static boolean removeLastDuplication(final StringBuilder buf, final int size, final boolean isSpace,
            final Set<String> termCache) {
        final String target = rightString(buf, size);
        if (!termCache.contains(target)) {

            buf.append("-");
            buf.append(i);
            buf.append(".html\">File ");
            buf.append(count);
            buf.append("-");
            buf.append(i);
            buf.append("</a><br>");
            buf.append("<a href=\"dir");
            buf.append(count);
            buf.append("-");
            buf.append(i);
            buf.append("/index.html\">Dir ");
            buf.append(count);

            final StringBuilder buf = new StringBuilder(100);
            if (strings.length > 1) {
                for (int i = 0; i < strings.length - 1; i++) {
                    if (buf.length() != 0) {
                        buf.append('.');
                    }
                    buf.append(strings[i]);
                }
                filePrefix = buf.toString();

            buf.append("-");
            buf.append(i);
            buf.append(".html\">File ");
            buf.append(count);
            buf.append("-");
            buf.append(i);
            buf.append("</a><br>");
            buf.append("<a href=\"dir");
            buf.append(count);
            buf.append("-");
            buf.append(i);
            buf.append("/index.html\">Dir ");
            buf.append(count);

                break;
            case ':':
                buf.append("%3a");
                break;
            case '/':
                buf.append("%2f");
                break;
            default:
                buf.append(c);
                break;
            }
        }
        return buf.toString();
    }

    /**

        }

        if (!list.isEmpty()) {
            final StringBuilder buf = new StringBuilder();
            for (final String value : list) {
                if (buf.length() > 0) {
                    buf.append(',');
                }
                buf.append(value);
            }
            System.setProperty(SPRING_PROFILES_ACTIVE, buf.toString());
        }
    }

        final StringBuilder buf = new StringBuilder();
        buf.append("<list>");
        if (values != null && !values.isEmpty()) {
            for (final String value : values) {
                buf.append("<item>");
                buf.append(trimSpace(XmlUtil.escapeXml(value)));
                buf.append("</item>");
            }
        }
        buf.append("</list>");
        // TODO support other type

     */
    public String getPathPrefix() {
        final StringBuilder buf = new StringBuilder(100);
        buf.append("smb1://");
        if (server != null) {
            buf.append(server);
            if (port > 0) {
                buf.append(':');
                buf.append(port);
            }
            buf.append('/');
        }
        return buf.toString();
    }

    /**

                final StringBuilder buf = new StringBuilder(100);
                buf.append(tokenUrl);
                if (StringUtil.isNotBlank(tokenReqParams)) {
                    if (tokenUrl.indexOf('?') >= 0) {
                        buf.append('&');
                    } else {
                        buf.append('?');
                    }
                    buf.append(tokenReqParams);
                }

                            map.put(ExtractData.RESOURCE_NAME_KEY, filename);
                            buf.append(extractor.getText(new IgnoreCloseInputStream(is), map).getContent());
                            buf.append('\n');
                        } catch (final Exception e) {
                            if (logger.isDebugEnabled()) {