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8BitMUSH
Below are various snippets of code that demonstrate implementation of the IBM/OEM code page 437 extended characters as per the FANSI 2.0 specifications. Specification information can be found on the Specifications page.

Array Of Unicode Characters
Converting all characters based upon their ascii value into the character present in the below array will allow client developers to display the Unicode equivalent of FANSI extended characters in non-IBM/non-Terminal fonts. The blank characters are characters not used by FANSI.
        String[] Characters = new String[] { "", "☺", "", "♥", "♦", "♣", "♠", "", "", "", "", "", "", "", "♫", "☼", "►", 
            "◄", "↕", "‼", "¶", "§", "‗", "↨", "↑", "↓", "→", " ", "∟", "↔", "▲", "▼" ," ", "!","\"", "#","$","%","&","'","(",")","*",
            "+",",","-",".","/","0","1","2",
            "3","4","5","6","7","8","9",":",";","<","=",">","?","@","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q",
            "R","S","T","U","V","W","X","Y","Z","[","\\",@"]","^","_","`","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p",
            "q","r","s","t","u","v","w","x","y","z", "{", 
            "|", "}", "~", "⌂", "Ç", "ü", "é", "â", "ä", "à", "å", "ç", "ê", "ë", "è", "ï", "î", "ì", "Ä", "Å", "É", "æ", "Æ", "ô", "ö", 
            "ò", "û", "ù", "ÿ", "Ö", "Ü", "¢", "£", "¥", "₧", "ƒ", "á", "í", "ó", "ú", "ñ", "Ñ", "ª", "º", "¿", "⌐", "¬", "½", "¼", "¡", 
            "«", "»", "░", "▒", "▓", "│", "┤", "╡", "╢", "╖", "╕", "╣", "║", "╗", "╝", "╜", "╛", "┐", "└", "┴", "┬", "├", "─", "┼", "╞", 
            "╟", "╚", "╔", "╩", "╦", "╠", "═", "╬", "╧", "╨", "╤", "╥", "╙", "╘", "╒", "╓", "╫", "╪", "┘", "┌", "█", "▄", "▌", "▐", "▀", 
            "α", "β", "Γ", "π", "Σ", "δ", "μ", "τ", "Ф", "θ", "Ω", "δ", "∞", "ø", "Є", "∩", "≡", "±", "≥", "≤", "⌠", "⌡", "÷", "≈", "º", 
            "•", "·", "√", "ⁿ", "²", "■", "" };
C() function for PennMUSH
This is a simple version of a C() function for PennMUSH. It accepts either one or two arguments, the first being the ascii value of the character to display, the second optional argument being the number of times to repeat it.
void
local_functions()
{
    function_add("C", local_fun_c, 1, 2, FN_REG);
}
FUNCTION(local_fun_c) 
{ 
  int times, c;
  int result = 0;

  if (!is_integer(args[1]) || (is_integer(args[1]) && parse_integer(args[1]) < 1)) { 
    times = 1; 
  } else { 
	times = parse_integer(args[1]); 
  }

	 while(times--) { 
		 if(result) break; 

		 if (is_integer(args[0]) && parse_integer(args[0]) > 0) { 
				c = parse_integer(args[0]); 

			   if (!((c == 1 || (c >= 3 && c <= 6) || (c >= 14 && c <= 254 && c != 27)))) { 
				 result = 1; 
					safe_str(T("No such FANSI character!"), buff, bp); 
			   } 
			   else 
			   {
					result = safe_chr(c, buff, bp);
			   }
		   } 
	 }
}