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import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathExpressionException;
import java.util.Collection;
import java.util.Stack;
public class Main
{
private static final XPathExpression XPE_FIND_ALL_VHDL_FILES;
private static Parameters PARAMETERS;
private static Document root;
static
{
XPE_FIND_ALL_VHDL_FILES =
XMLManager.compile_or_die
(
//"./*/*/el[@kind=\"design_file\"][@file]"
"//el[@kind=\"design_file\"][@file]"
);
}
public static void main (final String... args)
{
final Collection<Node> vhdl_files;
PARAMETERS = new Parameters(args);
if (!PARAMETERS.are_valid())
{
return;
}
try
{
root = XMLManager.get_document(PARAMETERS.get_xml_file());
}
catch (final Exception e)
{
System.err.println
(
"[E] Could not load XML file \""
+ PARAMETERS.get_xml_file()
+ "\":"
);
e.printStackTrace();
return;
}
try
{
vhdl_files =
XMLManager.node_list_to_node_collection
(
(NodeList) XPE_FIND_ALL_VHDL_FILES.evaluate
(
root,
XPathConstants.NODESET
)
);
}
catch (final XPathExpressionException xpee)
{
System.err.println
(
"[E] Something went wrong when looking for the VHDL files:"
);
xpee.printStackTrace();
return;
}
parse_content(vhdl_files);
}
private static void parse_content (final Collection<Node> vhdl_files)
{
/* Stack highly recommended over FIFO (you don't want to grow large). */
final Stack<ParsableXML> waiting_list;
waiting_list = new Stack<ParsableXML>();
for (final Node f: vhdl_files)
{
System.out.println("New VHDL file in the waiting list.");
waiting_list.push(new VHDLFile(null, f));
}
while (!waiting_list.isEmpty())
{
final Collection<ParsableXML> children;
try
{
System.out.println("Parsing XML...");
children = waiting_list.pop().parse();
}
catch (final XPathExpressionException xpee)
{
System.err.println
(
"[E] Something went wrong while parsing the XML file:"
);
xpee.printStackTrace();
return;
}
for (final ParsableXML c: children)
{
waiting_list.push(c);
}
}
}
public static boolean node_is_function_or_literal (final String xml_id)
{
/* TODO */
return false;
}
public static Document get_xml_root ()
{
return root;
}
}
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