java - 从字符串中提取单词的正则表达式

Question

我想从 java 字符串中提取所有单词。

单词可以用任何欧洲语言书写，并且不包含空格，只包含字母符号。

虽然它可以包含连字符。

Answer 1

如果您不依赖正则表达式，也可以看看 BreakIterator ，特别是 getWordInstance()方法:

Word boundary analysis is used by search and replace functions, as well as within text editing applications that allow the user to select words with a double click. Word selection provides correct interpretation of punctuation marks within and following words. Characters that are not part of a word, such as symbols or punctuation marks, have word-breaks on both sides.