Nodes

The nodes section is enclosed in the cards:

    begin: nodes;
        ...
    end: nodes;

Every node card has the following format:

    <card> :: = <node_type> : <node_label> ,
                              <arglist>
                              [ , output , { yes | no } ] ;

where node_type is one of the following:

• structural
• electric
• abstract
• parameter
• hydraulic

The data manager reads the node type and the label and checks for duplication. If the node is not defined yet, the proper read function is called, which parses the rest of the card and constructs the node. The nodes are read as follows: