/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

// when     who     what
// 06/27/97 jband   added this header to my code
//

package com.netscape.jsdebugging.ifcui;

import java.io.*;
import netscape.application.*;
import netscape.util.*;


/**
* Static util functions...
*/

public class Util
{
    public static String expandTabs(String aString, int tabstops)
    {
        if( -1 == aString.indexOf('\t') )
            return aString;

        StringBuffer sb = new StringBuffer();
        int i,c;
        char ch;
        int newi;

        for(i=0,newi=0,c=aString.length(); i < c ; i++, newi++ )
        {
            ch = aString.charAt(i);
            if( ch == '\t' )
            {
                int spaces = ((newi+(tabstops-1))%tabstops)+1;
                for( int k = 0; k < spaces; k++ )
                    sb.append(" ");
                newi += spaces-1;
            }
            else
                sb.append(ch);
        }
        return sb.toString();
    }


    /**
    * Searches IFC Archive for root with given classname.
    * returns rootidentifier on success, -1 on failure
    *
    * NOTE: this makes the assupmtion that there will only be one 
    *       rootidentifier for a given classname. I don't think IFC
    *       enforces this. If you want to make that convention and
    *       use this method, then beware.
    *
    */

    public static int RootIdentifierForClassName( Archive a, String n )
    {
        int[] rootIdentifiers = a.rootIdentifiers();
        if( null != rootIdentifiers && 0 != rootIdentifiers.length )
        {
            for( int i = 0; i < rootIdentifiers.length; i++ )
            {
                int id = rootIdentifiers[i];
                if( n.equals(a.classTableForIdentifier(id).className()) )
                    return id;
            }
        }
        return -1;
    }


    public static final String  TEN_ZEROS = "0000000000";
}