int destSize = dest.length;
    int destIndex = 0;
    int lastEscape = 0;

    // Loop through the rest of the string, replacing when needed into the
    // destination buffer, which gets grown as needed as well.
    for (; index < slen; index++) {

      // Get a replacement for the current character.
      char[] r = escape(s.charAt(index));

      // If no replacement is needed, just continue.

In the next chapters you will see how to add security to your API using those tools provided by **FastAPI**.

  }

  /*
   * We use large numbers to avoid the integer cache. Normally, we'd accomplish that merely by using
   * `new Integer` (as we do) instead of `Integer.valueOf`. However, under J2KT, `new Integer`
   * gets translated back to `Integer.valueOf` because that is the only thing J2KT can support. And
   * anyway, it's nice to avoid `Integer.valueOf` because the Android toolchain optimizes multiple

 * The simplest solution is to use a custom @Named here so it isn't bound under the plain key.
 * This is only necessary for default components using @Typed that want to support overriding.
 *
 * As a non-default component this now gets a negative priority relative to other implementations
 * of the same interface. Since we want to allow overriding this doesn't matter in this case.

import jakarta.mail.Part;
import jakarta.mail.Session;
import jakarta.mail.internet.MailDateFormat;
import jakarta.mail.internet.MimeMessage;
import jakarta.mail.internet.MimeUtility;

/**
 * Gets a text from .eml file.
 *
 * @author shinsuke
 *
 */
public class EmlExtractor extends AbstractExtractor {
    private static final String[] DAY_OF_WEEK = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" };

		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// TODO(bianpengyuan): How do we test ipv6 rules?
			getNs = generateMockGetNsFunc(testSandboxDirectory)
			tmpDir := t.TempDir()
			outputFilePath := filepath.Join(tmpDir, "output.txt")
			if _, err := os.Create(outputFilePath); err != nil {

   *     message is formed by replacing each {@code %s} placeholder in the template with an
   *     argument. These are matched by position - the first {@code %s} gets {@code
   *     errorMessageArgs[0]}, etc. Unmatched arguments will be appended to the formatted message in
   *     square braces. Unmatched placeholders will be left as-is.

   * It is set by a client who only wants to make a request if it can be fully satisfied by the
   * cache. Cached responses that would require validation (ie. conditional gets) are not permitted
   * if this header is set.
   */
  @get:JvmName("onlyIfCached") val onlyIfCached: Boolean,
  @get:JvmName("noTransform") val noTransform: Boolean,
  @get:JvmName("immutable") val immutable: Boolean,

//     higher task limit).
//
//     <S3ConcurrentTaskLimit>
//
//   - Defines how many S3 operations are executed parallel within one Repository Task Slot (and within one backup object
//     that gets offloaded). The same registry key setting overwrites the storage-defined setting.
//     Optional value, default 64, range: 1-unlimited
//
//   - <S3MultiObjectDeleteLimit>

import org.codelibs.fess.crawler.extractor.ExtractorFactory;
import org.codelibs.fess.crawler.helper.MimeTypeHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Gets a text from .doc file.
 *
 * @author shinsuke
 *
 */
public class PdfExtractor extends PasswordBasedExtractor {
    private static final Logger logger = LoggerFactory.getLogger(PdfExtractor.class);