Class WordUtil

java.lang.Object
cloud.opencode.base.string.naming.WordUtil
public final class WordUtil extends Object
Word Splitting Utility 单词分割工具类

Utility for splitting compound names into individual words.

用于将复合名称分割为单个单词的工具类。

Features | 主要功能:

  • Split camelCase and PascalCase - 分割驼峰命名
  • Split snake_case and kebab-case - 分割蛇形和短横线命名
  • Handle mixed naming styles - 处理混合命名风格
  • Preserve acronyms - 保留缩写词

Usage Examples | 使用示例:

// Split camelCase
String[] words = WordUtil.splitWords("getUserName");
// -> ["get", "User", "Name"]

// Split snake_case
String[] words = WordUtil.splitWords("get_user_name");
// -> ["get", "user", "name"]

// Split with acronyms
String[] words = WordUtil.splitWords("parseHTMLDocument");
// -> ["parse", "HTML", "Document"]

Performance | 性能:

  • Time complexity: O(n) - 时间复杂度: O(n)
  • Space complexity: O(n) - 空间复杂度: O(n)

Security | 安全性:

  • Thread-safe: Yes (stateless utility) - 线程安全: 是（无状态工具类）
  • Null-safe: Yes - 空值安全: 是
Since:
JDK 25, opencode-base-string V1.0.0
Author:
Leon Soo www.LeonSoo.com
See Also:

  • Method Details

    • splitWords

      public static String[] splitWords(String name)
      Split a compound name into words. 将复合名称分割为单词。

      Handles multiple naming conventions:

      处理多种命名约定：

      • camelCase / PascalCase
      • snake_case / UPPER_SNAKE_CASE
      • kebab-case
      • dot.case
      • path/case
      • Space separated

      Examples | 示例:

      splitWords("getUserName")     = ["get", "User", "Name"]
splitWords("get_user_name")   = ["get", "user", "name"]
splitWords("get-user-name")   = ["get", "user", "name"]
splitWords("XMLParser")       = ["XML", "Parser"]
splitWords("parseHTMLDoc")    = ["parse", "HTML", "Doc"]
      Parameters:
      name - the compound name | 复合名称
      Returns:
      array of words | 单词数组

    • joinWords

      public static String joinWords(String[] words, String separator)
      Join words with a separator. 使用分隔符连接单词。

      Examples | 示例:

      joinWords(["get", "user", "name"], "_") = "get_user_name"
joinWords(["get", "user", "name"], "-") = "get-user-name"
      Parameters:
      words - the words to join | 要连接的单词
      separator - the separator | 分隔符
      Returns:
      joined string | 连接后的字符串

    • normalizeWord

      public static String normalizeWord(String word)
      Normalize a word (lowercase and trim). 规范化单词（小写并去除空格）。
      Parameters:
      word - the word to normalize | 要规范化的单词
      Returns:
      normalized word | 规范化后的单词

    • capitalizeWord

      public static String capitalizeWord(String word)
      Capitalize first letter of a word. 将单词首字母大写。
      Parameters:
      word - the word | 单词
      Returns:
      capitalized word | 首字母大写的单词

    • uncapitalizeWord

      public static String uncapitalizeWord(String word)
      Uncapitalize first letter of a word. 将单词首字母小写。
      Parameters:
      word - the word | 单词
      Returns:
      uncapitalized word | 首字母小写的单词