GetDirectoryFromPath.java

/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 **/
/**
 * Implements the CFML Function getdirectoryfrompath
 */
package lucee.runtime.functions.system;

import java.io.File;

import lucee.runtime.PageContext;
import lucee.runtime.ext.function.Function;

public final class GetDirectoryFromPath implements Function {
	public static String call(PageContext pc , String path) {
		return invoke(path);
	}
	
	public static String invoke(String path) {
		int posOfLastDel = path.lastIndexOf('/');
		String parent = "";
		
		if(path.lastIndexOf('\\') > posOfLastDel)
			posOfLastDel = path.lastIndexOf("\\");
		if(posOfLastDel != -1)
			parent = path.substring(0, posOfLastDel + 1);
		else
		if(path.equals(".") || path.equals(".."))
			parent = String.valueOf(File.separatorChar);
		else if(path.startsWith("."))
			parent = String.valueOf(File.separatorChar);
		else
			parent = String.valueOf(File.separatorChar);
		return parent;
	}
}