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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 XML_ROOT;
private static OutputFile MAIN_OUTPUT;
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
{
XML_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;
}
MAIN_OUTPUT =
OutputFile.new_output_file
(
PARAMETERS.get_main_output_filename()
);
try
{
vhdl_files =
XMLManager.node_list_to_node_collection
(
(NodeList) XPE_FIND_ALL_VHDL_FILES.evaluate
(
XML_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);
OutputFile.close_all();
}
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)
{
waiting_list.push(new VHDLFile(null, f));
}
while (!waiting_list.isEmpty())
{
final Collection<ParsableXML> children;
try
{
waiting_list.pop().parse(waiting_list);
}
catch (final XPathExpressionException xpee)
{
System.err.println
(
"[E] Something went wrong while parsing the XML file:"
);
xpee.printStackTrace();
return;
}
}
}
public static boolean node_is_function_or_literal (final String xml_id)
throws XPathExpressionException
{
final XPathExpression xpe_find_el_from_id;
final Node n;
final String kind;
xpe_find_el_from_id =
XMLManager.compile_or_die
(
".//el[@id=\""
+ xml_id
+ "\"]"
);
n =
(Node) xpe_find_el_from_id.evaluate
(
XML_ROOT,
XPathConstants.NODE
);
if (n == (Node) null)
{
return true;
}
kind = XMLManager.get_attribute(n, "kind");
if (kind.equals("function_declaration"))
{
return true;
}
else if (kind.equals("enumeration_literal"))
{
return true;
}
return false;
}
public static Document get_xml_root ()
{
return XML_ROOT;
}
public static OutputFile get_main_output ()
{
return MAIN_OUTPUT;
}
}
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