问题描述
我需要执行通配符( *
,?
等)搜索的字符串。这是我做了什么:
I need to perform Wildcard (*
, ?
, etc.) search on a string.This is what I have done:
string input = "Message";
string pattern = "d*";
Regex regex = new Regex(pattern, RegexOptions.IgnoreCase);
if (regex.IsMatch(input))
{
MessageBox.Show("Found");
}
else
{
MessageBox.Show("Not Found");
}
通过上面的code找到块击中,但实际上它不应该!
With the above code "Found" block is hitting but actually it should not!
如果我的模式是E *则只有发现应该打。
If my pattern is "e*" then only "Found" should hit.
我的理解或要求D *搜索应该查找包含后跟任意字符的文本D。
My understanding or requirement is d* search should find the text containing "d" followed by any characters.
我应该改变我的模式为D。*和e。*?是否有任何的.NET支持外卡同时使用正则表达式类,它内部是不是?
Should I change my pattern as "d.*" and "e.*"? Is there any support in .NET for Wild Card which internally does it while using Regex class?
推荐答案
这不是很难。从<一个href="http://www.$c$cproject.com/KB/recipes/wildcardtoregex.aspx">http://www.$c$cproject.com/KB/recipes/wildcardtoregex.aspx:
public static string WildcardToRegex(string pattern)
{
return "^" + Regex.Escape(pattern)
.Replace(@"\*", ".*")
.Replace(@"\?", ".")
+ "$";
}
因此,像富的* .xls?
将得到转化为 ^富。* \。xls的。$
这篇关于需要执行通配符(*,?等)搜索使用正则表达式的字符串的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!