c# - 正则表达式用 标签替换多个换行符

Question

我有一个字符串如下:

\r\n \r\n Some text blahblah \r\n \r\n \r\n \r\n Some other text \r\n \r\n \r\n \r\n blah blah blah \r\n

我想用一个 <br> 替换多个换行符的任何实例标记以及任何单个\r\n 到 <br>

所以上面的文字应该是这样的:

<br>  Some text blahblah <br><br> Some other text <br><br> blah blah blah <br>

我已经试过了，但它没有考虑到之间的空格:\r\n\r\n

Regex.Replace(text, @"[\r\n]+", "<br>")

Answer 1

也许试试这个(不是正则表达式，但有效:))，这将支持 \r\n 的奇数/偶数，并且如果 \r 则将标签添加到开始和结束\n 丢失。

 var result = string.Concat(text.Split(new char[] { '\r', '\n' })
                .Where(l => !string.IsNullOrWhiteSpace(l))
                .Select(s => string.Format("<br> {0} <br>",s)));

结果:

\r\n \r\n Some text blahblah \r\n \r\n \r\n \r\n Some other text \r\n \r\n \r\n \r\n blah blah blah \r\n
"<br> Some text blahblah <br><br> Some other text <br><br> blah blah blah <br>"

 \r\n \r\n Some text \r\n Some other \r\n \r\n \r\n  blah blah blah 
"<br> Some text <br><br> Some other <br><br> blah blah blah <br>"