* determine addressability of any host, clients of this class will need to perform their own DNS
 * lookups.
 *
 * <p>During construction, names are normalized in two ways:
 *
 * <ol>
 *   <li>ASCII uppercase characters are converted to lowercase.
 *   <li>Unicode dot separators other than the ASCII period ({@code '.'}) are converted to the ASCII
 *       period.
 * </ol>
 *

### 코드 수정

이건 매우 간단한 프로그램입니다.

그런데 처음부터 작성한다고 생각을 해봅시다.

여러분은 매개변수를 준비했고, 함수를 정의하기 시작했을 겁니다.

이때 "첫 글자를 대문자로 바꾸는 함수"를 호출해야 합니다.

`upper`였나? 아니면 `uppercase`? `first_uppercase`? `capitalize`?

그때 개발자들의 오랜 친구, 에디터 자동완성을 시도해봅니다.

당신은 `first_name`를 입력한 뒤 점(`.`)을 입력하고 자동완성을 켜기 위해서 `Ctrl+Space`를 눌렀습니다.

하지만 슬프게도 아무런 도움이 되지 않습니다:

<img src="/img/python-types/image01.png">

            // Then
            assertNotNull(parsedMessage);
            assertEquals(TEST_TARGET.toUpperCase(), parsedMessage.getTarget()); // OEM encoding often means uppercase
        }

        @Test
        @DisplayName("parse should handle message with no target name")
        void testParse_NoTargetName() throws IOException {
            // Given

		{"contains-$-dollar", true},
		{".starts-with-a-dot", true},
		{"ends-with-a-dot.", true},
		{"ends-with-a-dash-", true},
		{"-starts-with-a-dash", true},
		{"THIS-BEINGS-WITH-UPPERCASe", true},
		{"tHIS-ENDS-WITH-UPPERCASE", true},
		{"ThisBeginsAndEndsWithUpperCase", true},
		{"una ñina", true},
		{"lalalallalallalalalallalallalala-theString-size-is-greater-than-64", true},
		// cases for which test should fail.

### 編集

これはとても簡単なプログラムです。

しかし、今、あなたがそれを一から書いていたと想像してみてください。

パラメータの準備ができていたら、そのとき、関数の定義を始めていたことでしょう...

しかし、そうすると「最初の文字を大文字に変換するあのメソッド」を呼び出す必要があります。

それは`upper`でしたか？`uppercase`でしたか？それとも`first_uppercase`？または`capitalize`？

そして、古くからプログラマーの友人であるエディタで自動補完を試してみます。

関数の最初のパラメータ`first_name`を入力し、ドット(`.`)を入力してから、`Ctrl+Space`を押すと補完が実行されます。

しかし、悲しいことに、これはなんの役にも立ちません:

static String strip(String, String); public static String[] stripAll(String[]); public static String[] stripAll(String[], String); public static String stripEnd(String, String); public static String stripStart(String, String); public static String upperCase(String); public static String lowerCase(String); public static String uncapitalise(String); public static String capitalise(String); public static String swapCase(String); public static String capitaliseAllWords(String); public static String unc...

      .isEqualTo("http://%25:%25@host/%25?%25#%25")
    assertThat(url.resolve("").toString()).isEqualTo("http://%25:%25@host/%25?%25")
  }

  /**
   * Although HttpUrl prefers percent-encodings in uppercase, it should preserve the exact structure
   * of the original encoding.
   */
  @Test
  fun rawEncodingRetained() {
    val urlString = "http://%6d%6D:%6d%6D@host/%6d%6D?%6d%6D#%6d%6D"

text-align: left !important;\n  }\n  .text-xl-right {\n    text-align: right !important;\n  }\n  .text-xl-center {\n    text-align: center !important;\n  }\n}\n\n.text-lowercase {\n  text-transform: lowercase !important;\n}\n\n.text-uppercase {\n  text-transform: uppercase !important;\n}\n\n.text-capitalize {\n  text-transform: capitalize !important;\n}\n\n.font-weight-light {\n  font-weight: 300 !important;\n}\n\n.font-weight-lighter {\n  font-weight: lighter !important;\n}\n\n.font-weight-normal {\n...

            <ul>
            <li>{@code length(string)}: Returns the length of the given string.</li>
            <li>{@code upper(string)}: Converts the string to uppercase.</li>
            <li>{@code lower(string)}: Converts the string to lowercase.</li>
            <li>{@code substring(string, start, [end])}: Returns a substring of the given string.</li>

enter{text-align:center!important}}@media (min-width:1200px){.text-xl-left{text-align:left!important}.text-xl-right{text-align:right!important}.text-xl-center{text-align:center!important}}.text-lowercase{text-transform:lowercase!important}.text-uppercase{text-transform:uppercase!important}.text-capitalize{text-transform:capitalize!important}.font-weight-light{font-weight:300!important}.font-weight-lighter{font-weight:lighter!important}.font-weight-normal{font-weight:400!important}.font-weight-bo...