您的错误来自行:

current_word ++

Ruby 中没有这样的语法.应该是:

There's no such syntax in Ruby. It should be:

current_word += 1

此外，您错误地创建了正则表达式.应该是:

What's more, you create your regexp incorrectly. It should be:

namecatcher_regex = /^[\.{1}]([A-Z]+)\.{3}/

可能还有一些我没有注意到的其他错误.

There may be some other errors that I didn't notice.