RegEx太贪婪

Question

我有要求验证范围。 输入是按以下格式：

string example1 = "anydate between 20100101 ~~ 20100101"; 
string example2 = "anydate between 20100101 and 20100101"; 
string example3 = "docid between 1 ~~ 2"; 

我用正则表达式如下：

 
\b(\w)*(?<operator>Between|contains)\b(?<prefix>.*).*?(?<OP>~~|and)[ ]?\b(?.*)\b 

当用户输入"anydate between 20100101 ~~ 20100101 and test1"它失败，它抓住，直到test1。

如何使我的正则表达式不那么贪婪，直到20100101？

Answer 1

你可以尝试

anydate\b(?<op>(between|contains))\b(?<first>[0-9]*)\b(?<op2>(~~|and))\b(?<second>[0-9]*) 

编辑在什么需要的猜测，但：

(?<func>\w+)\b(?<op>(between|contains))\b(?<first>\w+)\b(?<op2>(~~|and))\b(?<second>\w+)