{!> ../../docs_src/query_params_str_validations/tutorial003.py!}
```

////

## Add regular expressions

You can define a <abbr title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">regular expression</abbr> `pattern` that the parameter should match:

//// tab | Python 3.10+

```Python hl_lines="11"
{!> ../../docs_src/query_params_str_validations/tutorial004_an_py310.py!}

          </plugins>
      </build>
    </profile>
    <profile>
      <!--
          Passes JDK 11-12-specific `no-module-directories` flag to Javadoc tool,
          which is required to make symbol search work correctly in the generated
          pages.

          This flag does not exist on 9-10 and 13+ (https://bugs.openjdk.java.net/browse/JDK-8215582).

          </plugins>
      </build>
    </profile>
    <profile>
      <!--
          Passes JDK 11-12-specific `no-module-directories` flag to Javadoc tool,
          which is required to make symbol search work correctly in the generated
          pages.

          This flag does not exist on 9-10 and 13+ (https://bugs.openjdk.java.net/browse/JDK-8215582).

import org.eclipse.aether.util.artifact.ArtifactIdUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * An implementation of a workspace reader that knows how to search the Maven reactor for artifacts, either as packaged
 * jar if it has been built, or only compile output directory if packaging hasn't happened yet.
 *
 */
@Named(ReactorReader.HINT)
@SessionScoped

    "capabilities": {
        "testCapability": false
    },
    "ipam": {
        "type": "testIPAM"
    },
    "dns": {
        "nameservers": ["testNameServer"],
        "domain": "testDomain",
        "search": ["testSearch"],
        "options": ["testOption"]
    },
    "prevResult": {
        "cniversion": "%s",
        "interfaces": [
            {
                "name": "%s",
                "sandbox": "%s"

        0x9c221d09, 0x6e2e10f7, 0x7dd67004, 0x8fda7dfa,
      },
    };

    // Value x picked so computeForWord(x) == ~0, found by exhaustive search.
    static final int INVERSE_COMPUTE_FOR_WORD_OF_ALL_1S = 0xeee3ddcd;

    static int computeForWord(int word) {
      return STRIDE_TABLE[3][word & 0xFF]
          ^ STRIDE_TABLE[2][(word >>> 8) & 0xFF]

  public static final String KEEP_ALIVE = "Keep-Alive";
  /**
   * The HTTP <a href="https://github.com/WICG/nav-speculation/blob/main/no-vary-search.md">{@code
   * No-Vary-Seearch}</a> header field name.
   *
   * @since 32.0.0
   */
  public static final String NO_VARY_SEARCH = "No-Vary-Search";
  /**
   * The HTTP <a href="https://googlechrome.github.io/OriginTrials/#header">{@code Origin-Trial}</a>
   * header field name.
   *

	// Prefer Equal to Compare for equality comparisons.
	if bytes.Equal(a, b) {
		// a equal b
	}
	if !bytes.Equal(a, b) {
		// a not equal b
	}
}

func ExampleCompare_search() {
	// Binary search to find a matching byte slice.
	var needle []byte
	var haystack [][]byte // Assume sorted
	_, found := slices.BinarySearchFunc(haystack, needle, bytes.Compare)
	if found {
		// Found it!
	}
}

          val staticIndex = NAME_TO_FIRST_INDEX[name]
          if (staticIndex != null) {
            headerNameIndex = staticIndex + 1
            if (headerNameIndex in 2..7) {
              // Only search a subset of the static header table. Most entries have an empty value, so
              // it's unnecessary to waste cycles looking at them. This check is built on the

        final String value = type + ComponentUtil.getFessConfig().getCanonicalLdapName(name);
        if (logger.isDebugEnabled()) {
            logger.debug("Search Role: {}:{}={}", type, name, value);
        }
        return value;
    }

    public void reloadConfiguration() {
        reloadConfiguration(true);
    }