From the NannyMUD documentation

LAST CHANGE

2000-12-19

FUNCTION

NAME
        colourize_string - Add colour codes to a string.


SYNTAX
        string colourize_string(string msg, object player, string class)

DESCRIPTION
	This function adds colour codes to the string, based on the settings
	in the object 'player'.


NOTE
	If the string ends in newline(s), the code for 'end-of-colour' is
	added before those to stop the colour from bleeding down into the
	prompt.