% Purpose
%    gets variable information from epic.key file.
%
% Synopsis
%    mexeps('inqcode',varcode)
%    [sname, lname, gname, frmt, units] = mexeps('inqcode',varcode)
%
% Description
%    It returns the variable information from the epic.key file. 
%    The variable is refered to by variable code, varcode, which
%    must be presented in epic.key file. If no output argument on
%    the left side, the result will be printed on screen in form:
%
%       code:short name:long name:generic name:format:units
%
%    When there are 5 output arguments on left side, it returns 
%    above information to them (variable code is not included).
%
% Examples
%    Get the variable code 20 information from the epic.key file
%
%       mexeps('inqcode',20)
%
% See Also
%    inqvar, inqaxis
%