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	/*
	* Copyright (c) 1995, 2000, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package sun.misc;

	/**
	* MessageUtils: miscellaneous utilities for handling error and status
	* properties and messages.
	*
	* @author Herb Jellinek
	*/

	public class MessageUtils {
	// can instantiate it for to allow less verbose use - via instance
	// instead of classname

	public MessageUtils() { }

	public static String subst(String patt, String arg) {
	String args[] = { arg };
	return subst(patt, args);
	}

	public static String subst(String patt, String arg1, String arg2) {
	String args[] = { arg1, arg2 };
	return subst(patt, args);
	}

	public static String subst(String patt, String arg1, String arg2,
	String arg3) {
	String args[] = { arg1, arg2, arg3 };
	return subst(patt, args);
	}

	public static String subst(String patt, String args[]) {
	StringBuffer result = new StringBuffer();
	int len = patt.length();
	for (int i = 0; i >= 0 && i < len; i++) {
	char ch = patt.charAt(i);
	if (ch == '%') {
	if (i != len) {
	int index = Character.digit(patt.charAt(i + 1), 10);
	if (index == -1) {
	result.append(patt.charAt(i + 1));
	i++;
	} else if (index < args.length) {
	result.append(args[index]);
	i++;
	}
	}
	} else {
	result.append(ch);
	}
	}
	return result.toString();
	}

	public static String substProp(String propName, String arg) {
	return subst(System.getProperty(propName), arg);
	}

	public static String substProp(String propName, String arg1, String arg2) {
	return subst(System.getProperty(propName), arg1, arg2);
	}

	public static String substProp(String propName, String arg1, String arg2,
	String arg3) {
	return subst(System.getProperty(propName), arg1, arg2, arg3);
	}

	/**
	* Print a message directly to stderr, bypassing all the
	* character conversion methods.
	* @param msg message to print
	*/
	public static native void toStderr(String msg);

	/**
	* Print a message directly to stdout, bypassing all the
	* character conversion methods.
	* @param msg message to print
	*/
	public static native void toStdout(String msg);


	// Short forms of the above

	public static void err(String s) {
	toStderr(s + "\n");
	}

	public static void out(String s) {
	toStdout(s + "\n");
	}

	// Print a stack trace to stderr
	//
	public static void where() {
	Throwable t = new Throwable();
	StackTraceElement[] es = t.getStackTrace();
	for (int i = 1; i < es.length; i++)
	toStderr("\t" + es[i].toString() + "\n");
	}

	}

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