CodeConverter/TestDotNet/TestComparisonCS.cs at 947ab8c99a1812a3f53da0f024b33df7734989a3 · icsharpcode/CodeConverter · GitHub

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using System;
using Microsoft.VisualBasic.CompilerServices;
using System.Globalization;

class Program
{
    static void Main()
    {
        char testChar = default;
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(Conversions.ToString(testChar), "", CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(Conversions.ToString(testChar), "a", CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare("a", Conversions.ToString(testChar), CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare("ab", Conversions.ToString(testChar), CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);

        char c = 'a';
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(Conversions.ToString(c), "a", CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(Conversions.ToString(c), "ab", CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);

        string s = "";
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(Conversions.ToString(c), s, CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);
        Console.WriteLine(CultureInfo.CurrentCulture.CompareInfo.Compare(Conversions.ToString(testChar), s, CompareOptions.IgnoreCase | CompareOptions.IgnoreKanaType | CompareOptions.IgnoreWidth) == 0);
    }
}