trcat(<span class="string">'s_'</span>,list_solid{i},<span class="string">'=s;'</span>))
0043     <span class="keyword">else</span>
0044         eval(strcat(<span class="string">'s_'</span>,list_solid{i},<span class="string">'=s_'</span>,list_solid{i-1},<span class="string">'+1;'</span>))
0045     <span class="keyword">end</span>
0046 <span class="keyword">end</span>
0047 
0048 <span class="comment">% find the number of the mother from the attachment point name</span>
0049 <span class="keyword">if</span> ~n