c# - 如何使用 RegEx 删除可能嵌套的括号？

Question

我有以下文字:

{{ some text {{ with nested text }} and again }} and some more text over here {{remove this too}}

我想匹配最外面的 {{ }} 括号，这样我就剩下:

and some more text over here

这是我目前所拥有的:

var text = Regex.Replace(content, "{{[^}}]*}}",string.Empty);

有什么想法吗？任何帮助将不胜感激。

更新 添加一些可能有用的链接:

{{.+?}} http://www.regexr.com/3941i

{{.+}} http://www.regexr.com/3941f

Answer 1

var text = Regex.Replace(content, "{{.+}}", string.Empty);

编辑(平衡匹配)

string content = @"{{ some text {{ with nested text }} and again }} and some more text over here {{remove this too}}";

Regex re = new Regex(@" {{
    [^{}]*
    (
        (
            (?<Open>{{)
            [^{}]*
        )+
        (
            (?<Close-Open>}})
            [^{}]*
        )+
    )*
    (?(Open)(?!))
    }}", RegexOptions.IgnorePatternWhitespace);

var text = re.Replace(content, string.Empty);

更多详情:http://blogs.msdn.com/b/bclteam/archive/2005/03/15/396452.aspx