将每个单词的首字母大写，\ b \ w也适用于我

1 回答

• 2

  在语言中间找到真正的单词中断可能会更多一些
  比使用正则表达式边界更复杂 .

  ( \s* [\W_]* )           # (1), Not letters/numbers,
   ( [^\W_] )               # (2), Followed by letter/number
   (                        # (3 start)
        (?:                      # -----------
             \w                       # Letter/number or _
          |                         # or,
             [[:punct:]_-]            # Punctuation
             (?= [\w[:punct:]-] )     #  if followed by punctuation/letter/number or '-'
          |                         #or,
             [?.!]                    # (Add) Special word ending punctuation
        )*                       # ----------- 0 to many times
   )                        # (3 end)
  

  var str = 'This "is the ,input _str,ng, the End ';
  console.log(str);
  console.log(str.replace(/(\s*[\W_]*)([^\W_])((?:\w|[[:punct:]_-](?=[\w[:punct:]-])|[?.!])*)/g, function( match, p1,p2,p3) {return p1 + p2.toUpperCase() + p3;}));
  

  回复于 2024-04-20T07:24:55+08:00