ExtendsMacro.java

package net.asfun.jangod.lib.macro;

import java.io.IOException;

import net.asfun.jangod.base.ResourceManager;
import net.asfun.jangod.lib.Macro;
import net.asfun.jangod.parse.ParseException;
import net.asfun.jangod.parse.TokenParser;
import net.asfun.jangod.tree.Node;
import net.asfun.jangod.tree.TreeParser;
import net.asfun.jangod.tree.TreeRebuilder;
import net.asfun.jangod.util.HelperStringTokenizer;

public class ExtendsMacro implements Macro {

    final String MACRONAME = "extends";

    @Override
    public String getEndMacroName() {
	return null;
    }

    @Override
    public void refactor(Node current, String helpers, TreeRebuilder rebuilder)
	    throws ParseException {
	String[] helper = new HelperStringTokenizer(helpers).allTokens();
	if (helper.length != 1) {
	    throw new ParseException("Macro 'extends' expects 1 helper >>> "
		    + helper.length);
	}
	String templateFile = rebuilder.resolveString(helper[0]);
	try {
	    String fullName = ResourceManager.getFullName(templateFile,
		    rebuilder.getWorkspace(), rebuilder.getConfiguration()
			    .getWorkspace());
	    // TODO STOP LOOP EXTENDS
	    Node extendsRoot = TreeParser.parser(new TokenParser(
		    ResourceManager.getResource(fullName, rebuilder
			    .getConfiguration().getEncoding())));
	    extendsRoot = rebuilder.derive().refactor(extendsRoot);

	    rebuilder.parent = extendsRoot;
	    rebuilder.nodeRemove(current);
	} catch (IOException e) {
	    throw new ParseException(e.getMessage());
	}
    }

    @Override
    public String getName() {
	return MACRONAME;
    }

}