*
     * @param pattern a <a href="../util/Formatter.html#syntax">format string</a>
     * @param args arguments referenced by the format specifiers in the format string
     * @return the current builder
     */
    @Nonnull
    default MessageBuilder format(String pattern, Object... args) {
        return append(String.format(pattern, args));
    }

    /**
     * Set the buffer length.

<component name="DependencyValidationManager">
    <!-- The source of truth for this pattern is `build-logic/basics/src/main/kotlin/gradlebuild/basics/PublicApi.kt` file, please keep them in sync -->
    <scope name="Gradle public API"

import org.gradle.api.tasks.Internal
import org.gradle.api.tasks.OutputDirectory
import org.gradle.api.tasks.PathSensitive
import org.gradle.api.tasks.PathSensitivity
import org.gradle.api.tasks.TaskAction
import java.util.regex.Pattern
import javax.inject.Inject

/**
 * This task scans the main source set and findd samples in javadoc with `class='autoTested'`,

Теперь вы знаете, что когда они понадобятся, вы сможете использовать их в **FastAPI**.

### `regex` из Pydantic v1 вместо `pattern` { #pydantic-v1-regex-instead-of-pattern }

До Pydantic версии 2 и до FastAPI 0.100.0 этот параметр назывался `regex`, а не `pattern`, но сейчас он устарел.

Вы всё ещё можете встретить такой код:

//// tab | Pydantic v1

        private
        val isoTimestampFormat = newSimpleDateFormatUTC("yyyy-MM-dd HH:mm:ss z")

        private
        fun newSimpleDateFormatUTC(pattern: String) = SimpleDateFormat(pattern).apply {
            timeZone = TimeZone.getTimeZone("UTC")
        }

        fun readBuildReceiptFromString(buildReceipt: String) =
            Properties().apply { load(buildReceipt.reader()) }

  }

  @Suppress("NAME_SHADOWING")
  companion object {
    private val YEAR_PATTERN = Pattern.compile("(\\d{2,4})[^\\d]*")
    private val MONTH_PATTERN =
      Pattern.compile("(?i)(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec).*")
    private val DAY_OF_MONTH_PATTERN = Pattern.compile("(\\d{1,2})[^\\d]*")
    private val TIME_PATTERN = Pattern.compile("(\\d{1,2}):(\\d{1,2}):(\\d{1,2})[^\\d]*")

    private fun domainMatch(

from typing import Annotated

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(
    q: Annotated[
        str | None, Query(min_length=3, max_length=50, pattern="^fixedquery$")
    ] = None,
):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})

Agora você sabe que, sempre que precisar delas, pode usá-las no **FastAPI**.

### Pydantic v1 `regex` em vez de `pattern` { #pydantic-v1-regex-instead-of-pattern }

Antes da versão 2 do Pydantic e antes do FastAPI 0.100.0, o parâmetro se chamava `regex` em vez de `pattern`, mas agora está descontinuado.

Você ainda pode ver algum código usando isso:

//// tab | Pydantic v1

  }

  @GwtIncompatible // java.util.regex.Pattern
  public void testContains_equals() {
    new EqualsTester()
        .addEqualityGroup(
            Predicates.contains(Pattern.compile("foo")), Predicates.containsPattern("foo"))
        .addEqualityGroup(Predicates.contains(Pattern.compile("foo", Pattern.CASE_INSENSITIVE)))
        .addEqualityGroup(Predicates.containsPattern("bar"))

        destinationDirectory.mkdirs();

        Path adocDir = getDocumentationRoot().get().getAsFile().toPath();
        getDocumentationFiles().getAsFileTree().matching(pattern -> pattern.include("**/*.adoc")).forEach(adocFile -> {
            String adocFileName = adocFile.getName();
            // getting_started.adoc -> getting_started-docinfo.html