Model can be saved as a XML document. The resulting file uses the extension “.xml”.

Using the XML format is possible to write incomplete script having functors whose input and output ports are not completely bound. This allows saving models in the first development stages.

The XML document is written according to the following DTD ¹⁾:

<?xml version="1.0"?>
<!DOCTYPE script [
    <!ELEMENT script (property*, functor*, containerfunctor*)>
 
    <!ELEMENT functor (property*, inputport*, outputport*)>
        <!ATTLIST functor
            name   CDATA  #REQUIRED>
 
    <!ELEMENT containerfunctor (property*, inputport*, outputport*, internalinputport*, internaloutputport*, functor*)>
        <!ATTLIST containerfunctor
            name   CDATA  #REQUIRED>
 
    <!ELEMENT property EMPTY>
        <!ATTLIST property
            key    CDATA  #REQUIRED
            value  CDATA  #REQUIRED>
 
    <!ELEMENT inputport (#PCDATA)>
        <!ATTLIST inputport
            name   CDATA  #REQUIRED
            peerid IDREFS #IMPLIED>
    <!ELEMENT outputport EMPTY>
        <!ATTLIST outputport
            name   CDATA  #REQUIRED
            id     ID     #REQUIRED>
     <!ELEMENT internalinputport EMPTY>
        <!ATTLIST internalinputport
            name   CDATA  #REQUIRED
            peerid IDREFS #IMPLIED>
    <!ELEMENT internaloutputport EMPTY>
        <!ATTLIST internaloutputport
            name   CDATA  #REQUIRED
            id     ID     #REQUIRED>
]>

The resulting document is not formated using tabs, spaces or newlines. Those characters are written only when they are inside the definition content, not in the content boundaries.