% [bonds,status] = abg2cbg(system_name, system_type, full_name, port_bonds, infofile)

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.14  1996/12/31 16:20:42  peterg
% %% Just write causality information at top level -- it gets a bit
% %% voluminous if written at deeper levels.
% %%
% %% Revision 1.13  1996/12/31 11:49:09  peterg
% %% Don't copy port bond causality if already set -- allows subsystem
% %% causality to be preset directely on named SS.
% %%
% %% Revision 1.12  1996/12/31 11:42:36  peterg
% %% *** empty log message ***
% %%

% If not at top level, then sort out the port bonds.
if at_top_level==0 
  % Find number of port bonds
  [n_port_bonds,columns] = size(port_bonds);

  % Check compatibility - if ok copy port bonds to the internal bonds list.
  if n_port_bonds~=n_ports
    mtt_info(sprintf('%1.0f port bonds incompatible with %1.0f ports', ...
	n_port_bonds, n_ports), infofile);
    mtt_info(sprintf('%s: %1.0f port bonds incompatible with %1.0f ports', ...
	full_name, n_port_bonds, n_ports), infofile);
  else % Copy the port bonds -- but only if not set already
    for i = 1:n_ports      % The port SSs come first
      j = abs(components(i,1)); % Get the bonds attached to the ports
      direction = -sign(components(i,1));
      for k=1:2
	if bonds(j,k)==0 % causality not set yet - so copy.
	  bonds(j,k) = direction*port_bonds(i,k);