- CEL regex patterns in x-kubernetes-valiation rules are compiled when CRDs are created/updated if the pattern is provided as a string constant in the expression. Any regex compile errors are reported as a CRD create/update validation error. ([#108617](https://github.com/kubernetes/kubernetes/pull/108617), [@jpbetz](https://github.com/jpbetz))...

```Python hl_lines="10"
{!../../../docs_src/query_params_str_validations/tutorial003.py!}
```

## Adicionando expressões regulares

Você pode definir uma <abbr title="Uma expressão regular, regex ou regexp é uma sequência de caracteres que define um parâmetro de busca para textos.">expressão regular</abbr> que combine com um padrão esperado pelo parâmetro:

```Python hl_lines="11"

      .assertLogMatch(Regex("""User-Agent: okhttp/.+"""))
      .assertLogEqual("--> END GET")
      .assertLogMatch(Regex("""<-- 200 OK $url \(\d+ms\)"""))
      .assertLogEqual("Content-Type: text/html; charset=0")
      .assertLogMatch(Regex("""Content-Length: \d+"""))
      .assertLogMatch(Regex(""))
      .assertLogEqual("Body with unknown charset")
      .assertLogMatch(Regex("""<-- END HTTP \(\d+ms, 25-byte body\)"""))

```Python hl_lines="9"
{!../../../docs_src/query_params_str_validations/tutorial003.py!}
```

## Ajouter des validations par expressions régulières

On peut définir une <abbr title="Une expression régulière, regex ou regexp est une suite de caractères qui définit un pattern de correspondance pour les chaînes de caractères.">expression régulière</abbr> à laquelle le paramètre doit correspondre :

```Python hl_lines="10"

internal fun MediaType.commonHashCode(): Int = mediaType.hashCode()

private const val TOKEN = "([a-zA-Z0-9-!#$%&'*+.^_`{|}~]+)"
private const val QUOTED = "\"([^\"]*)\""
private val TYPE_SUBTYPE = Regex("$TOKEN/$TOKEN")
private val PARAMETER = Regex(";\\s*(?:$TOKEN=(?:$TOKEN|$QUOTED))?")

/**
 * Returns a media type for this string.
 *
 * @throws IllegalArgumentException if this is not a well-formed media type.
 */

  docs: {{ (files | allDocs) or (files | match(regex=r/\.adoc$/) | every) }} # This won't catch a mix of .adoc and non .adoc changes, see: https://github.com/linear-b/gitstream/issues/93
  tests: {{ files | allTests }}

  # Exclude anything under samples/snippets sourceSets, or any sort of test resource file

org.checkerframework.checker.nullness.compatqual
org.checkerframework.checker.nullness.qual
org.checkerframework.checker.propkey
org.checkerframework.checker.propkey.qual
org.checkerframework.checker.regex
org.checkerframework.checker.regex.qual
org.checkerframework.checker.signature
org.checkerframework.checker.signature.qual
org.checkerframework.checker.signedness
org.checkerframework.checker.signedness.qual

org.checkerframework.checker.nullness.compatqual
org.checkerframework.checker.nullness.qual
org.checkerframework.checker.propkey
org.checkerframework.checker.propkey.qual
org.checkerframework.checker.regex
org.checkerframework.checker.regex.qual
org.checkerframework.checker.signature
org.checkerframework.checker.signature.qual
org.checkerframework.checker.signedness
org.checkerframework.checker.signedness.qual

    ```Python hl_lines="10"
    {!> ../../../docs_src/query_params_str_validations/tutorial003.py!}
    ```

## Reguläre Ausdrücke hinzufügen

Sie können einen <abbr title="Ein regulärer Ausdruck, auch regex oder regexp genannt, ist eine Zeichensequenz, die ein Suchmuster für Strings definiert.">Regulären Ausdruck</abbr> `pattern` definieren, mit dem der Parameter übereinstimmen muss:

=== "Python 3.10+"

    ```Python hl_lines="11"

      |--simple boundary
      |
      |abcd
      |--simple boundary
      |
      |efgh
      |--simple boundary--
      """.trimMargin()
        .replace("\n", "\r\n")
        .replace(Regex("(?m)abcd\r\n"), "abcd\n")

    val parts =
      MultipartReader(
        boundary = "simple boundary",
        source = Buffer().writeUtf8(multipart),
      )

    val part = parts.nextPart()!!