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function ports = comp_ports(comp_type)
function ports = comp_ports(comp_type,N)
%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%%%% Model Transformation Tools %%%%%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Matlab function comp_ports
% ports = comp_ports(comp_type)
% Returns the port list for simple components
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.2 1997/08/28 08:08:24 peterg
% %% Added RS component to the two-port list
% %%
% %% Revision 1.1 1997/08/02 19:35:47 peterg
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
junctions = '-zero-one-';
one_ports = '-SS-R-C-I-';
one_ports = '-SS-';
two_ports = '-TF-GY-AE-AF-FMR-RS-';
N_ports = '-R-C-I-';
comp_type = ['-', comp_type, '-'];
if length(findstr(comp_type,junctions))==1
ports = ['undefined]'];
elseif length(findstr(comp_type,one_ports))==1
ports = ['in'];
elseif length(findstr(comp_type,two_ports))==1
ports = ['in';'out'];
elseif length(findstr(comp_type,'[-EMTF-]'))==1
ports = ['in';'out';'mod'];
elseif length(findstr(comp_type,'[-ES-]'))==1
ports = ['e';'s'];
elseif length(findstr(comp_type,N_ports))==1
if N==1
ports = ['in'];
elseif N==2
ports = ['in';'out'];
elseif N>2
ports = '1';
for i=2:N
ports = [ports; sprintf("%i",i)];
end;
end;
end;
end;
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