-sub FILE-SPEC ( ',' FILE-SPEC )*

/**
 * Answer a list of builders that represent this file or a list of files
 * specified in -sub. This list can be empty. These builders represents to
 * be created artifacts and are each scoped to such an artifacts. The
 * builders can be used to build the bundles or they can be used to find out
 * information about the to be generated bundles.
 *
 * @return List of 0..n builders representing artifacts.
 * @throws Exception
 */
public List<Builder> getSubBuilders() throws Exception {
	String sub = getProperty(SUB);
	if (sub == null || sub.trim().length() == 0 || EMPTY_HEADER.equals(sub))
		return Arrays.asList(this);

	List<Builder> builders = new ArrayList<Builder>();
	if (isTrue(getProperty(NOBUNDLES)))
		return builders;

	Parameters subsMap = parseHeader(sub);
	for (Iterator<String> i = subsMap.keySet().iterator(); i.hasNext();) {
		File file = getFile(i.next());
		if (file.isFile() && !file.getName().startsWith(".")) {
			builders.add(getSubBuilder(file));
			i.remove();
		}
	}

	Instructions instructions = new Instructions(subsMap);

	List<File> members = new ArrayList<File>(Arrays.asList(getBase().listFiles()));

	nextFile: while (members.size() > 0) {

		File file = members.remove(0);

		// Check if the file is one of our parents
		@SuppressWarnings("resource")
		Processor p = this;
		while (p != null) {
			if (file.equals(p.getPropertiesFile()))
				continue nextFile;
			p = p.getParent();
		}

		for (Iterator<Instruction> i = instructions.keySet().iterator(); i.hasNext();) {

			Instruction instruction = i.next();
			if (instruction.matches(file.getName())) {

				if (!instruction.isNegated()) {
					builders.add(getSubBuilder(file));
				}

				// Because we matched (even though we could be negated)
				// we skip any remaining searches
				continue nextFile;
			}
		}
	}
	return builders;
}

public Builder getSubBuilder(File file) throws Exception {
	Builder builder = getSubBuilder();
	if (builder != null) {
		builder.setProperties(file);
		addClose(builder);
	}
	return builder;
}

public Builder getSubBuilder() throws Exception {
	Builder builder = new Builder(this);
	builder.setBase(getBase());

	for (Jar file : getClasspath()) {
		builder.addClasspath(file);
	}

	return builder;
}