Small Caps Generator

smallcaps.cs

using System;
using System.Text;

Console.WriteLine("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
Console.WriteLine(SmallCaps("ABCDEFGHIJKLMNOPQRSTUVWXYZ"));

/// <summary>
/// Gets a the first match in capital letters as small caps.
/// </summary>
/// <param name="text">The text.</param>
/// <returns>The first match with all capital letters in small caps.</returns>
static string SmallCaps(string text)
{
  StringBuilder sb = new StringBuilder();
  foreach (char c in text)
  {
    sb.Append(c switch
      {
        'A' => '\u1D00',
        'B' => '\u0299',
        'C' => '\u1D04',
        'D' => '\u1D05',
        'E' => '\u1D07',
        'F' => '\uA730',
        'G' => '\u0262',
        'H' => '\u029C',
        'I' => '\u026A',
        'J' => '\u1D0A',
        'K' => '\u1D0B',
        'L' => '\u029F',
        'M' => '\u1D0D',
        'N' => '\u0274',
        'O' => '\u1D0F',
        'P' => '\u1D18',
        'Q' => '\uA7AF',
        'R' => '\u0280',
        'S' => '\uA731',
        'T' => '\u1D1B',
        'U' => '\u1D1C',
        'V' => '\u1D20',
        'W' => '\u1D21',
        'X' => 'x',
        'Y' => '\u028F',
        'Z' => '\u1D22',
        _ => c,
      });
  }

  return sb.ToString();
}