/*
 * Ant utilities for jedit build environment.
 * :tabSize=2:indentSize=2:noTabs=true:
 * :folding=explicit:collapseFolds=1:
 *
 * Copyright (C) 2001 Slava Pestov
 * Copyright (C) 2012 Jarek Czekalski jarekczek@poczta.onet.pl
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package org.jedit.ant;

import java.io.File;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.Resource;
import org.apache.tools.ant.types.resources.FileResource;
import org.apache.tools.ant.types.resources.FileResource;

public class Misc
{
  
  //{{{ getProjectFile method
  public static File getProjectFile(Project p, String path)
  {
    Resource r = p.getResource(path);
    if (r == null) { return null; }
    FileResource fr = (FileResource)r.as(FileResource.class);
    if (fr == null) { return null; }
    return fr.getFile();
  } //}}}

  //{{{ compareStrings method
	/**
	 * Compares two strings. Copied from org.gjt.sp.StandardUtilities.
	 * Last modified in r3881 in org.gjt.sp.jedit.MiscUtilities.
	 * Author: Slava Pestov.<p>
	 *
	 * Unlike <function>String.compareTo()</function>,
	 * this method correctly recognizes and handles embedded numbers.
	 * For example, it places "My file 2" before "My file 10".<p>
	 *
	 * @param str1 The first string
	 * @param str2 The second string
	 * @param ignoreCase If true, case will be ignored
	 * @return negative If str1 < str2, 0 if both are the same,
	 * positive if str1 > str2
	 * @since jEdit 4.3pre5
	 */
	public static int compareStrings(String str1, String str2, boolean ignoreCase)
	{
		char[] char1 = str1.toCharArray();
		char[] char2 = str2.toCharArray();

		int len = Math.min(char1.length,char2.length);

		for(int i = 0, j = 0; i < len && j < len; i++, j++)
		{
			char ch1 = char1[i];
			char ch2 = char2[j];
			if(Character.isDigit(ch1) && Character.isDigit(ch2)
				&& ch1 != '0' && ch2 != '0')
			{
				int _i = i + 1;
				int _j = j + 1;

				for(; _i < char1.length; _i++)
				{
					if(!Character.isDigit(char1[_i]))
					{
						//_i--;
						break;
					}
				}

				for(; _j < char2.length; _j++)
				{
					if(!Character.isDigit(char2[_j]))
					{
						//_j--;
						break;
					}
				}

				int len1 = _i - i;
				int len2 = _j - j;
				if(len1 > len2)
					return 1;
				else if(len1 < len2)
					return -1;
				else
				{
					for(int k = 0; k < len1; k++)
					{
						ch1 = char1[i + k];
						ch2 = char2[j + k];
						if(ch1 != ch2)
							return ch1 - ch2;
					}
				}

				i = _i - 1;
				j = _j - 1;
			}
			else
			{
				if(ignoreCase)
				{
					ch1 = Character.toLowerCase(ch1);
					ch2 = Character.toLowerCase(ch2);
				}

				if(ch1 != ch2)
					return ch1 - ch2;
			}
		}

		return char1.length - char2.length;
	} //}}}
  //}}}
  
}