assertEquals("1", "trim", StringUtil.ltrim("zzzytrim", "xyz"));
        assertEquals("2", "", StringUtil.ltrim("xyz", "xyz"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testRtrim() throws Exception {
        assertEquals("trim", StringUtil.rtrim("trimxxxx", "x"));
        assertEquals("", StringUtil.rtrim("xyz", "xyz"));

     *
     * @param text
     *            The text to trim
     * @return The resulting string
     */
    public static final String ltrim(final String text) {
        return ltrim(text, null);
    }

    /**
     * Removes the specified characters from the left side of the string.
     *
     * @param text
     *            The text to trim
     * @param trimText
     *            The characters to remove

                if (buf != null && sitemapUrl != null) {
                    sitemapUrl.setLoc(buf.toString().trim());
                    buf = null;
                }
            } else if (LASTMOD_ELEMENT.equals(elementName)) {
                if (buf != null && sitemapUrl != null) {
                    sitemapUrl.setLastmod(buf.toString().trim());
                    buf = null;
                }

                    }
                    if (pair.length == 2) {
                        String sortValue = pair[1].trim();
                        if (StringUtil.isBlank(sortValue) || "score".equals(sortValue)) {
                            sortValue = "score.desc";
                        }
                        return new Pair<>(pair[0].trim(), sortValue);
                    }

        for (final String path : paths) {
            if (StringUtil.isNotBlank(path) && !path.trim().startsWith("#")) {
                boolean flag = false;
                for (final String protocol : protocols) {
                    if (path.trim().startsWith(protocol.trim())) {
                        flag = true;
                        break;
                    }
                }

        buf.append(LF);
        buf.append(StringEscapeUtils.escapeJson(discloser.getSavedSubject().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```");
        buf.append(LF).append(StringEscapeUtils.escapeJson(discloser.getSavedPlainText().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```\"}");
        return buf.toString();
    }

    /**

                buf.append("</item>");
            }
        }
        buf.append("</list>");
        // TODO support other type
        // TODO trim(default)
        return "<field name=\"" + XmlUtil.escapeXml(name) + "\">" + buf.toString().trim() + "</field>\n";
    }

    /**
     * Returns the additional data for the response.
     * @param responseData The response data.

            final String[] keyValue = StringUtils.split(values[1], ":", 2);
            if (keyValue.length == 2) {
                list.add(new Pair<>(keyValue[0].trim(), keyValue[1].trim()));
            } else if (keyValue.length == 1) {
                list.add(new Pair<>(keyValue[0].trim(), StringUtil.EMPTY));
            } else {
                logger.warn("Unexpected value: value={}", s);
            }
        }));

                        paramMap.put("unknown." + (unknownKey + 1), line.substring(pos + 1).trim());
                        unknownKey++;
                    } else if (pos > 0) {
                        final String key = line.substring(0, pos).trim();
                        if (pos < line.length()) {
                            String data = line.substring(pos + 1).trim();

            final DuplicateHostHelper duplicateHostHelper = ComponentUtil.getDuplicateHostHelper();

            // set urls
            split(urlsStr, "[\r\n]").of(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).distinct().forEach(urlValue -> {
                if (!urlValue.startsWith("#") && protocolHelper.isValidWebProtocol(urlValue)) {
                    final String u = duplicateHostHelper.convert(urlValue);