01_make_char_constants.rb

def printable(c)
  c.sub!(/\d/) { |d| "_#{d}" }
  {
    '/' => '_slash_',
    '_' => '_underscore_'
  }[c] || c
end

(0..127).each do |n|
  c = printable(n.chr)
  printf "        private const byte %s = 0x%02x;\n", c, n if c =~ /^\w+$/
end

02_char_constants.cs

        private const byte _slash_ = 0x2f;
        private const byte _0 = 0x30;
        private const byte _1 = 0x31;
        private const byte _2 = 0x32;
        private const byte _3 = 0x33;
        private const byte _4 = 0x34;
        private const byte _5 = 0x35;
        private const byte _6 = 0x36;
        private const byte _7 = 0x37;
        private const byte _8 = 0x38;
        private const byte _9 = 0x39;
        private const byte A = 0x41;
        private const byte B = 0x42;
        private const byte C = 0x43;
        private const byte D = 0x44;
        private const byte E = 0x45;
        private const byte F = 0x46;
        private const byte G = 0x47;
        private const byte H = 0x48;
        private const byte I = 0x49;
        private const byte J = 0x4a;
        private const byte K = 0x4b;
        private const byte L = 0x4c;
        private const byte M = 0x4d;
        private const byte N = 0x4e;
        private const byte O = 0x4f;
        private const byte P = 0x50;
        private const byte Q = 0x51;
        private const byte R = 0x52;
        private const byte S = 0x53;
        private const byte T = 0x54;
        private const byte U = 0x55;
        private const byte V = 0x56;
        private const byte W = 0x57;
        private const byte X = 0x58;
        private const byte Y = 0x59;
        private const byte Z = 0x5a;
        private const byte _ = 0x5f;
        private const byte a = 0x61;
        private const byte b = 0x62;
        private const byte c = 0x63;
        private const byte d = 0x64;
        private const byte e = 0x65;
        private const byte f = 0x66;
        private const byte g = 0x67;
        private const byte h = 0x68;
        private const byte i = 0x69;
        private const byte j = 0x6a;
        private const byte k = 0x6b;
        private const byte l = 0x6c;
        private const byte m = 0x6d;
        private const byte n = 0x6e;
        private const byte o = 0x6f;
        private const byte p = 0x70;
        private const byte q = 0x71;
        private const byte r = 0x72;
        private const byte s = 0x73;
        private const byte t = 0x74;
        private const byte u = 0x75;
        private const byte v = 0x76;
        private const byte w = 0x77;
        private const byte x = 0x78;
        private const byte y = 0x79;
        private const byte z = 0x7a;