% Purpose
%    converts YYMMDDhhmmss.fff time representation to a time string.
%
% Synopsis
%    time_str = mexeps('totstr',time,format_str)
%
% Description
%    It converts single time from YYMMDDhhmmss.fff format to a time
%    string.  The output format is spefied by input argument format_str.
%    The format string is a short hand notation for how the date and
%    time are to be written.  The position and number of the key letter 
%    determine the string format. 
%
%    A table of the meanings follows.
%
%		D     day formatted as 1-31
%		DD    day formatted as 01-31
%		DDD   day of week as 3 character name
%		DDDD  day of weed, full name
%
%		M     month formatted as 1-12
%		MM    month formatted as 01-12
%		MMM   month formatted as 3 character name
%		MMMM  month formatted as full name
%
%		YY    year written as last 2 digits
%		YYYY  year written as 4 digits
%
%		h     hour written as 1-24
%		hh    hour written as 01-24
%
%		m     minute written as 1-59
%		mm    minute written as 01-59
%
%		s     second written as 1-59
%		ss    second written as 01-59
%
%		f     fraction of second written as 0-9
%		ff    fraction of second written as 00-99
%		fff   fraction of second written as 000-999
%
%    Any character not in the above table is copied to the output 
%    string in the proper relative position.
%
% Examples
%    1.  "D-MM-YY hh:mm"  yields the string "7-02-89 21:16"
%
%       mexeps('totstr',980702211600,'D-MM-YY hh:mm');
%
%    2. "DD MMM YYYY" yields the string "07 FEB 1989"
% 
%       mexeps('totstr',980702211600,'DD MMM YYYY');
% 
% See Also
%    totarray
%