You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: m_patch.m
    path of file: ./repos/matlab_owc/lib/m_map1.4/m_map1.4_mod
    
    the code of the file until where you have to start completion: function h=m_patch(long,lat,C,varargin);
% M_PATCH Create patches on a map
%    M_PATCH(LONG,LAT,C) is a drop-in replacement for PATCH that uses 
%    longitude/latitude coordinates to draw a patch on the current map. 
%    See PATCH for more details about the way in which patch colours and 
%    properties should be specified.
%
%    Currently you cannot specify C to be other than a string or 1x3 RGB
%    vector.
%
%    See also M_LINE, M_LL2XY

% Rich Pawlowicz (rich@ocgy.ubc.ca) 3/Sep/98

    
function h=m_patch(long,lat,C,varargin);
% M_PATCH Create patches on a map
%    M_PATCH(LONG,LAT,C) is a drop-in replacement for PATCH that uses 
%    longitude/latitude coordinates to draw a patch on the current map. 
%    See PATCH for more details about the way in which patch colours and 
%    properties should be specified.
%
%    Currently you cannot specify C to be other than a string or 1x3 RGB
%    vector.
%
%    See also M_LINE, M_LL2XY

% Rich Pawlowicz (rich@ocgy.ubc.ca) 3/Sep/98
% 
% This software is provided "as is" without warranty of any kind. But
% it's mine, so you can't sell it.

%  10/Mar/99 - changed order of calls ('c' not handled correctly in mu_coast otherwise)
% 6/Nov/00 - eliminate returned stuff if ';' neglected (thx to D Byrne)

[m,n]=size(long);

if m==1 & n>1,
  h=mu_coast('vector',[long' lat';long(1) lat(1)],'patch',C,'tag','m_patch',varargin{:});
elseif m>1 & n==1,
  h=mu_coast('vector',[long lat;long(1) lat(1)],'patch',C,'tag','m_patch',varargin{:});
else
  h=mu_coast('vector',[reshape([long;long(1,:);NaN+ones(1,n)],(m+2)*n,1),...
                     reshape([lat;lat(1,:);NaN+ones(1,n)],(m+2)*n,1)],'patch',C,'tag','m_patch',varargin{:});
end