val c = name[i]
    require(c in '\u0021'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in header name: $name"
    }
  }
}

internal fun headersCheckValue(
  value: String,
  name: String,
) {
  for (i in value.indices) {
    val c = value[i]
    require(c == '\t' || c in '\u0020'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in $name value" +

          connectionPool = connectionPool,
          readTimeoutMillis = client.readTimeoutMillis,
          writeTimeoutMillis = client.writeTimeoutMillis,
          socketConnectTimeoutMillis = chain.connectTimeoutMillis,
          socketReadTimeoutMillis = chain.readTimeoutMillis,
          pingIntervalMillis = client.pingIntervalMillis,
          retryOnConnectionFailure = client.retryOnConnectionFailure,
          fastFallback = client.fastFallback,

        }
        return Encdec.dec_uint16be(tmp, 0) & 0xFFFF;
    }

    @Override
    public final char readChar() throws SmbException {
        if (read(tmp, 0, 2) < 0) {
            throw new SmbException("EOF");
        }
        return (char) Encdec.dec_uint16be(tmp, 0);
    }

    @Override
    public final int readInt() throws SmbException {
        if (read(tmp, 0, 4) < 0) {

import java.io.FilterWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import org.jspecify.annotations.NullUnmarked;

/**
 * A char sink for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class TestCharSink extends CharSink implements TestStreamSupplier {

  private final TestByteSink byteSink;

  @BeforeEach
  fun setUp() {
    client =
      OkHttpClient
        .Builder()
        .addNetworkInterceptor(
          Interceptor { chain ->
            when {
              extraNetworkInterceptor != null -> extraNetworkInterceptor!!.intercept(chain)
              else -> chain.proceed(chain.request())
            }
          },
        ).addNetworkInterceptor(networkInterceptor)
        .addInterceptor(applicationInterceptor)

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 = "\"\"";

    private KuromojiCSVUtil() {

If you can help me with that, **you are helping me maintain FastAPI** and making sure it keeps **advancing faster and better**. 🚀

## Join the chat { #join-the-chat }

Join the 👥 <a href="https://discord.gg/VQjSZaeJmf" class="external-link" target="_blank">Discord chat server</a> 👥 and hang out with others in the FastAPI community.

/// tip

                }
            }
            return null;
        };
    }

    @SafeVarargs
    static UnaryOperator<String> chain(UnaryOperator<String>... functions) {
        return chain(List.of(functions));
    }

    /**
     * Memoizes a given function that takes a String input and produces a String output.

  private XmlEscapers() {}

  private static final char MIN_ASCII_CONTROL_CHAR = 0x00;
  private static final char MAX_ASCII_CONTROL_CHAR = 0x1F;

  // For each xxxEscaper() method, please add links to external reference pages
  // that are considered authoritative for the behavior of that escaper.

  /**
   * Returns an {@link Escaper} instance that escapes special characters in a string so it can

    // Capture the connection so that we can later make it stale.
    var connection: RealConnection? = null
    client =
      client
        .newBuilder()
        .addNetworkInterceptor(
          Interceptor { chain ->
            connection = chain.connection() as RealConnection
            chain.proceed(chain.request())
          },
        ).build()

    server.enqueue(