final String xpath = xpathConfigMap.get(XPath.DEFAULT_LANG);
        if (StringUtil.isNotBlank(xpath)) {
            return xpath;
        }
        return fessConfig.getCrawlerDocumentHtmlLangXpath();
    }

    protected String getContentXpath(final FessConfig fessConfig, final Map<String, String> xpathConfigMap) {
        final String xpath = xpathConfigMap.get(XPath.DEFAULT_CONTENT);

 *
 * @see javax.xml.xpath.XPath
 * @see javax.xml.xpath.XPathFactory
 * @see javax.xml.xpath.XPathExpressionException
 */
public class XPathAPI {

    private final XPath xPath;

    public XPathAPI() {
        xPath = createXPath(f -> {});
    }

    /**
     * Creates an instance of {@link XPath} using the provided {@link Consumer} to configure the {@link XPathFactory}.

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.xml.xpath.XPathEvaluationResult;
import javax.xml.xpath.XPathException;
import javax.xml.xpath.XPathNodes;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.BeanUtil;

        }

        return url.replaceAll("([^:])/+", "$1/");
    }

    protected boolean isValidPath(final String path) {
        if (StringUtil.isBlank(path)) {
            return false;
        }

        final Matcher matcher = invalidUrlPattern.matcher(path);
        if (matcher.find()) {
            return false;
        }

        return true;
    }

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import javax.xml.xpath.XPathEvaluationResult;
import javax.xml.xpath.XPathException;
import javax.xml.xpath.XPathNodes;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;

    # Remove empty testcases
    for p in testsuite._elem.xpath(".//testcase"):
      if not len(p):  # pylint: disable=g-explicit-length-test
        testsuite._elem.remove(p)
    # Change "testsuite > testcase,system-out" to "testsuite > testcase > error"
    for p in testsuite._elem.xpath(".//system-out"):
      for c in p.getparent().xpath(".//error | .//failure"):
        c.text = p.text
      p.getparent().remove(p)

import javax.xml.XMLConstants;
import javax.xml.namespace.NamespaceContext;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathNodes;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.BeanUtil;

        }

        // xpath.*
        public static class XPath {
            public static final String DEFAULT_LANG = "default.lang";
            public static final String DEFAULT_CONTENT = "default.content";
            public static final String DEFAULT_DIGEST = "default.digest";
            // xapth.<field>=<value>
        }

        // config.*

 * It uses XPath expressions to extract text content from HTML documents.
 * <p>
 * This class provides methods to configure the XPath expressions, parser features, and properties.
 * It also includes caching mechanism for XPathAPI instances to improve performance.
 * </p>
 * <p>
 * The extracted text is obtained from the nodes selected by the {@code targetNodePath} XPath expression.

import org.lastaflute.core.security.PrimaryCipher;

public class ParameterUtil {
    private static final String CIPHER_PREFIX = "{cipher}";

    protected static final String XPATH_PREFIX = "field.xpath.";

    protected static final String META_PREFIX = "field.meta.";

    protected static final String VALUE_PREFIX = "field.value.";

    protected static final String SCRIPT_PREFIX = "field.script.";