public override int evalNodeSet(VTDNav vn)
{
switch (opCode)
{
case FuncName.CURRENT:
if (state == START)
{
vn.loadCurrentNode();
state = END;
return vn.getCurrentIndex2();
}
else
{
return -1;
}
// break;
case FuncName.DOCUMENT:
if (argCount1 == 1)
{
if (!argumentList.e.NodeSet)
{
if (state == START)
{
String s = argumentList.e.evalString(vn);
if (s.Length == 0)
{
newVN = xslVN;
newVN.context[0] = -1;
}
else if (vg.parseFile(s, true))
{
newVN = vg.getNav();
newVN.context[0] = -1;
newVN.URIName = s;
}
else
{
state = END;
return -1;
}
state = END;
return 0;
}
else
{
return -1;
}
}
else
{
try
{
if (state != END)
{
a = argumentList.e.evalNodeSet(vn);
if (a != -1)
{
String s = vn.toString(getStringVal(vn, a));
if (s.Length == 0)
{
newVN = xslVN;
newVN.context[0] = -1;
}
else if (vg.parseFile(s, true))
{
newVN = vg.getNav();
newVN.context[0] = -1;
newVN.URIName = s;
}
else
{
state = END;
return -1;
}
state = END;
return 0;
}
else
{
state = END;
return -1;
}
}
else
return -1;
}
catch (NavException e)
{
}
}
}
break;
case FuncName.KEY:
throw new XPathEvalException(" key() not yet implemented ");
// break;
}
throw new XPathEvalException(" Function Expr can't eval to node set ");
}
