## Advanced description from docstring { #advanced-description-from-docstring }

You can limit the lines used from the docstring of a *path operation function* for OpenAPI.

Adding an `\f` (an escaped "form feed" character) causes **FastAPI** to truncate the output used for OpenAPI at this point.

It won't show up in the documentation, but other tools (such as Sphinx) will be able to use the rest.

    /**
     * A map of field rules.
     */
    protected Map<String, String> fieldRuleMap = new LinkedHashMap<>();

    /** a flag to trim a space characters. */
    protected boolean trimSpaceEnabled = true;

    /**
     * The charset name.
     */
    protected String charsetName = Constants.UTF_8;

    /**

        // Verify query was processed
        // Note: Field logging behavior depends on implementation
    }

    public void test_convertPhraseQuery_withSpecialCharacters() {
        // Test with special characters in query
        PhraseQuery.Builder builder = new PhraseQuery.Builder();
        builder.add(new Term(Constants.DEFAULT_FIELD, "test@#$"));
        PhraseQuery phraseQuery = builder.build();

    assertThat(formEncode(255)).isEqualTo("%C3%BF")
  }

  @Throws(IOException::class)
  private fun formEncode(codePoint: Int): String {
    // Wrap the codepoint with regular printable characters to prevent trimming.
    val body =
      FormBody
        .Builder()
        .add("a", String(intArrayOf('b'.code, codePoint, 'c'.code), 0, 3))
        .build()
    val buffer = Buffer()

            new LookupTranslator(EntityArrays.HTML40_EXTENDED_UNESCAPE), new NumericEntityUnescaper());

    /**
     * Default character encoding for content extraction.
     */
    protected String encoding = Constants.UTF_8;

    /**
     * The preload size for charset detection.
     */
    protected int preloadSizeForCharset = 2048;

        set(Calendar.SECOND, second)
        set(Calendar.MILLISECOND, 0)
        return timeInMillis
      }
    }

    /**
     * Returns the index of the next date character in `input`, or if `invert` the index
     * of the next non-date character in `input`.
     */
    private fun dateCharacterOffset(
      input: String,
      pos: Int,
      limit: Int,
      invert: Boolean,
    ): Int {

constraints.Past.message = {item} deve essere una data passata.
constraints.Pattern.message = {item} non corrisponde a "{regexp}".
constraints.Size.message = La dimensione di {item} deve essere compresa tra {min} e {max} caratteri.
# ----------------------------------------------------------
# Hibernate Validator
# -------------------
constraints.CreditCardNumber.message = {item} non è un numero di carta di credito valido.

        assertEquals("", chain.changePasswordCalls.get(0).getKey());
        assertEquals("", chain.changePasswordCalls.get(0).getValue());
    }

    // Test changePassword with special characters
    public void test_changePassword_specialCharacters() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.changePasswordResult = true;

        // Each should be a different instance
        assertNotSame(provider1, provider2);
        assertNotSame(provider2, provider3);
        assertNotSame(provider1, provider3);
    }

    // Test with special characters in time adjustment string
    public void test_specialCharactersInTimeAdjustment() {
        FessConfig specialConfig = new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

        assertNotNull(settings);
    }

    @Test
    public void testSpecialCharactersInIndexName() {
        // Test index name with special characters
        builder.setSettingsIndexName("Test-Index_Name.2024");
        assertEquals("test-index_name.2024", builder.settingsIndexName);

        // Test index name with spaces (should be lowercased)