复杂的“Contains"字符串比较

本文关键字：字符串 比较 quot Contains 复杂 | 更新日期: 2023-09-27 18:01:48

我正在开发一个c# 4.5应用程序，我需要一个函数为以下比较返回true:

"bla lsamonar d/o bla".ComplexContains("leonardo")

换句话说，我需要string.Compare(str1, str2, CultureInfo.InvariantCulture, CompareOptions.IgnoreCase | CompareOptions.IgnoreSymbols | CompareOptions.IgnoreNonSpace)也检查"包含!

有人能帮忙吗?

复杂的“Contains"字符串比较

您可以使用适当的CompareInfo，然后使用CompareInfo.IndexOf(string, string, CompareOptions)并对照-1检查结果。示例:

using System;
using System.Globalization;
class Program
{
    static void Main()
    {
        var compareInfo = CultureInfo.InvariantCulture.CompareInfo;
        var options = CompareOptions.IgnoreCase | 
            CompareOptions.IgnoreSymbols |
            CompareOptions.IgnoreNonSpace;
        var haystack = "bla Lé OnAr d/o bla";
        var needle = "leonardo";
        var index = compareInfo.IndexOf(haystack, needle, options);
        Console.WriteLine(index); // 4
    }
}

或以方法形式:

private static bool ComplexContains(string source, string value)
{
    var index = CultureInfo.InvariantCulture.CompareInfo.IndexOf
        (source, value, CompareOptions.IgnoreCase | 
         CompareOptions.IgnoreSymbols | CompareOptions.IgnoreNonSpace);
    return index != -1;
}
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