ios - Regular expression for capturing hashtags in groups

Question

I need a regular expression to capture a #hashtag in multiple groups(group 1-"#" group 2-"hasshtag"). I tried:

"(\\b#)([a-z0-9]{1,})(\\b)"

But this doesn't capture anything.Any suggestions?

标签： iosregex

Answer 1

你可以使用这个正则表达式：

"(\\B#)([a-zA-Z0-9]+)"

\B断言\b不匹配的位置。使用\bbefore#将使匹配失败，除非 before 有单词字符#。

正则表达式演示