private void read()
{
this.reset();
object obj = this.rule; // xref or xref_empty or xref_xri_reference or xref_IRI
// xref or xref_empty or xref_xri_reference or xref_IRI ?
if (obj is Parser.Parser.xref)
{
IList<Rule> list_xref = ((Parser.Parser.xref)obj).rules;
if (list_xref.Count < 1)
return;
obj = list_xref[0]; // xref_empty or xref_xri_reference or xref_IRI
}
else if (obj is Parser.Parser.xref_empty)
{
}
else if (obj is Parser.Parser.xref_xri_reference)
{
}
else if (obj is Parser.Parser.xref_IRI)
{
}
else
{
throw new InvalidCastException(obj.GetType().Name);
}
// xref_empty or xref_xri_reference or xref_IRI ?
if (obj is Parser.Parser.xref_empty)
{
}
else if (obj is Parser.Parser.xref_xri_reference)
{
// read xri_reference from xref_xri_reference
IList<Rule> list_xref_xri_reference = ((Parser.Parser.xref_xri_reference)obj).rules;
if (list_xref_xri_reference.Count < 2)
return;
obj = list_xref_xri_reference[1]; // xri_reference
this.xriReference = new XRI3Reference((Parser.Parser.xri_reference)obj);
}
else if (obj is Parser.Parser.xref_IRI)
{
// read IRI from xref_IRI
IList<Rule> list_xref_IRI = ((Parser.Parser.xref_IRI)obj).rules;
if (list_xref_IRI.Count < 2)
return;
obj = list_xref_IRI[1]; // IRI
this.iri = ((Parser.Parser.IRI)obj).spelling;
}
else
{
throw new InvalidCastException(obj.GetType().Name);
}
}
private void reset()
{
this.xriReference = null;
this.iri = null;
}
