function [bonds,components] = rbg2abg(name,rbonds,rstrokes,rcomponents,port_coord,port_name,infofile)

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.25  1998/04/12 15:01:04  peterg
% %% Converted to uniform port notation - always use []
% %%
% %% Revision 1.24  1998/02/19 08:57:16  peterg
% %% Fixed mtt-info bug -- confused filename with number
% %%
% %% Revision 1.23  1997/12/04 14:24:22  peterg
% %% Removed error message about through-pointing arrows
% %%
% %% Revision 1.22  1997/09/18 19:49:37  peterg

[n_bonds,junk] = size(bonds);
n_exp_ports=n_ports;
exp_port_name="";
exp_port_bond = [];
%exp_comps = [];
for i=1:n_ports
  port_name_i = port_name(i,:)
  [subport,n_subports] = split_port(port_name_i, ','); % Find the components of the vector port


  if n_subports==1 % an ordinary port
    exp_port_name = [exp_port_name; subport(1,:)]; % Write out the only port
    exp_port_bond = [exp_port_bond; port_bond(i)]; % and the port_bond
  else % its a vector port
    % Check that there is a corresponding vector port at the other end of the
    % bond
    signed_bond_index = port_bond(i);
    [other_bond_index,n_other] = getindex(port_bond,-signed_bond_index);
    if n_other == 1
      other_port_name = port_name(other_bond_index,:);
      [other_subport,n_other_subports] = split_port(other_port_name, ',');

      if n_other_subports~=n_subports
	mtt_info(['Vector ports ', port_name_i, ' and ', other_port_name, 'are not compatible'],fnum);
      end
    else 
      mtt_info(['Vector port ', port_name_i, ' has no matching port'], fnum);
    end;