return "^" + Pattern.quote(s.substring(1, s.length() - 1)) + "$";
        }
        if (s.startsWith("^")) {
            return "^" + Pattern.quote(s.substring(1));
        }
        if (s.endsWith("$")) {
            return Pattern.quote(s.substring(0, s.length() - 1)) + "$";
        }
        return Pattern.quote(s);
    }

    /**

            logger.warn("Failed to write a suggest elevate word.", e);
        }
    }

    /**
     * Safely retrieves a value from a list at the specified index, handling bounds checking
     * and cleaning up quoted strings.
     *
     * @param list the list to retrieve the value from
     * @param index the index of the value to retrieve
     * @return the cleaned value at the specified index, or empty string if index is out of bounds

 *  Fix: Add a leading `.` for better domain matching in `JavaNetCookieJar`.
 *  Fix: Gracefully recover from HTTP/2 connection shutdowns at start of request.
 *  Fix: Be lenient if a `MediaType`'s character set is `'single-quoted'`.
 *  Fix: Allow horizontal tab characters in header values.
 *  Fix: When parsing HTTP authentication headers permit challenge parameters in any order.


## Version 3.4.2

_2016-11-03_

      }
    }

    // Build the content escaper first and then add quote escaping for the
    // general escaper.
    builder.addEscape('&', "&");
    builder.addEscape('<', "&lt;");
    builder.addEscape('>', "&gt;");
    XML_CONTENT_ESCAPER = builder.build();
    builder.addEscape('\'', "&apos;");
    builder.addEscape('"', "&quot;");
    builder.addEscape('\t', "&#x9;");
    builder.addEscape('\n', "&#xA;");

    }

    public void test_escapeXml_allSpecialChars() {
        // Test all special characters
        String input = "Test & < > \"quote\" 'apos'";
        String expected = "Test &amp; &lt; &gt; &quot;quote&quot; &apos;apos&apos;";
        assertEquals(expected, XmlUtil.escapeXml(input));
    }

    public void test_escapeXml_noSpecialChars() {
        // Test string without special characters

    }

    private boolean processQuote() {
        if (peekc == QUOTE) {
            ttype = QUOTE;
            int i = 0;
            int d = read();
            int c = d;
            while (d >= 0) {
                if (d == QUOTE) {
                    final int d2 = read();
                    if (d2 == QUOTE) {
                        c = QUOTE;
                    } else {
                        d = d2;

h3,\nblockquote.quote-cyan h4,\nblockquote.quote-cyan h5,\nblockquote.quote-cyan h6 {\n  color: #17a2b8;\n}\n\nblockquote.quote-white {\n  border-color: #fff;\n}\n\nblockquote.quote-white h1,\nblockquote.quote-white h2,\nblockquote.quote-white h3,\nblockquote.quote-white h4,\nblockquote.quote-white h5,\nblockquote.quote-white h6 {\n  color: #fff;\n}\n\nblockquote.quote-gray {\n  border-color: #6c757d;\n}\n\nblockquote.quote-gray h1,\nblockquote.quote-gray h2,\nblockquote.quote-gray h3,\nblockquote.quote-gray h4...

import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Utility class for parsing CSV text
 */
public final class KuromojiCSVUtil {
    private static final char QUOTE = '"';

    private static final char COMMA = ',';

    private static final Pattern QUOTE_REPLACE_PATTERN = Pattern.compile("^\"([^\"]+)\"$");

    private static final String ESCAPED_QUOTE = "\"\"";

  enum WorkerRunningState {
    /** Runnable is not running and not queued for execution */
    IDLE,
    /** Runnable is not running, but is being queued for execution */
    QUEUING,
    /** runnable has been submitted but has not yet begun execution */
    QUEUED,
    RUNNING,
  }

  /** Underlying executor that all submitted Runnable objects are run on. */

  enum WorkerRunningState {
    /** Runnable is not running and not queued for execution */
    IDLE,
    /** Runnable is not running, but is being queued for execution */
    QUEUING,
    /** runnable has been submitted but has not yet begun execution */
    QUEUED,
    RUNNING,
  }

  /** Underlying executor that all submitted Runnable objects are run on. */