将字符串与通配符进行比较
本文关键字:比较 通配符 字符串 | 更新日期: 2023-09-27 17:58:53
我需要比较几个字符串。
我有一个通配符"%",可以替换任何数字(数字可以是任何大小)。
string str1 = "STRUCT[1].VARSTRUCT[10].VAR[1]";
string str2 = "STRUCT[%].VARSTRUCT[%].VAR[%]";
string str3 = "STRUCT[%].VARSTRUCT[%].VAR[2]";
CompareStrings(str1, str2); // Should return TRUE;
CompareStrings(str2, str3); // Should return TRUE;
CompareStrings(str1, str3); // SHould return FALSE;
以下是如何对包含数字和表示数字的通配符的任意两个字符串执行此操作:
private static bool CompareStrings(string str1, string str2)
{
var ar1 = Regex.Matches(str1, @"['d%]+").Cast<Match>().Select(m => m.Value).ToArray();
var ar2 = Regex.Matches(str2, @"['d%]+").Cast<Match>().Select(m => m.Value).ToArray();
if (ar1.Length != ar2.Length)
return false;
// Check wildcards and numbers
for (int i = 0; i < ar1.Length; i++)
if (ar1[i] != ar2[i] && ar1[i] != "%" && ar2[i] != "%")
return false;
// Remove wildcards and numbers to check the other characters
if (Regex.Replace(str1, @"['d%]+", String.Empty) != Regex.Replace(str2, @"['d%]+", String.Empty))
return false;
return true;
}
一个关于如何做类似事情的非常快速且粗略的例子。。但它可以
class Program
{
static void Main(string[] args)
{
string str1 = "STRUCT[1].VARSTRUCT[10].VAR[1]";
string str2 = "STRUCT[%].VARSTRUCT[%].VAR[%]";
string str3 = "STRUCT[%].VARSTRUCT[%].VAR[2]";
Console.WriteLine("str1 - str2: " + SpecialComparers.AreEqual(str1, str2));
Console.WriteLine("str2 - str3: " + SpecialComparers.AreEqual(str2, str3));
Console.WriteLine("str1 - str3: " + SpecialComparers.AreEqual(str1, str3));
}
}
class SpecialComparers
{
public static bool AreEqual(String in1, String in2)
{
Regex re = new Regex(@"STRUCT'[('d+|%)']'.VARSTRUCT'[('d+|%)']'.VAR'[('d+|%)']");
var values1 = re.Match(in1).Groups;
var values2 = re.Match(in2).Groups;
if (values1.Count != values2.Count) return false;
for (int i = 1; i <= values1.Count; i++ )
{
if (!values1[i].ToString().Equals(values2[i].ToString())
&& !values1[i].ToString().Equals("%")
&& !values2[i].ToString().Equals("%")
)
return false;
}
return true;
}
}