- /*
- * @(#)$Id: JavaCupRedirect.java,v 1.2 2003/01/27 18:44:55 mkwan Exp $
- *
- * The Apache Software License, Version 1.1
- *
- *
- * Copyright (c) 2001-2003 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xalan" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation and was
- * originally based on software copyright (c) 2001, Sun
- * Microsystems., http://www.sun.com. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
- package com.sun.org.apache.xalan.internal.xsltc.util;
-
- import java.io.FileInputStream;
- import java.io.FileNotFoundException;
- import java.io.InputStream;
-
- /**
- * Utility class to redirect input to JavaCup program.
- *
- * Usage-command line:
- * <code>java com.sun.org.apache.xalan.internal.xsltc.utils.JavaCupRedirect [args] -stdin filename.ext</code>
- *
- * @author Morten Jorgensen
- * @version $Id: JavaCupRedirect.java,v 1.2 2003/01/27 18:44:55 mkwan Exp $
- */
- public class JavaCupRedirect {
-
- private final static String ERRMSG =
- "You must supply a filename with the -stdin option.";
-
- public static void _main (String args[]) {
-
- // If we should call System.exit or not
- //@todo make this settable for use inside other java progs
- boolean systemExitOK = true;
-
- // This is the stream we'll set as our System.in
- InputStream input = null;
-
- // The number of arguments
- final int argc = args.length;
-
- // The arguments we'll pass to the real '_main()'
- String[] new_args = new String[argc - 2];
- int new_argc = 0;
-
- // Parse all parameters passed to this class
- for (int i = 0; i < argc; i++) {
- // Parse option '-stdin <filename>'
- if (args[i].equals("-stdin")) {
- // This option must have an argument
- if ((++i >= argc) || (args[i].startsWith("-"))) {
- System.err.println(ERRMSG);
- doSystemExit(systemExitOK);
- }
- try {
- input = new FileInputStream(args[i]);
- }
- catch (FileNotFoundException e) {
- System.err.println("Could not open file "+args[i]);
- doSystemExit(systemExitOK);
- }
- catch (SecurityException e) {
- System.err.println("No permission to file "+args[i]);
- doSystemExit(systemExitOK);
- }
- }
- else {
- if (new_argc == new_args.length) {
- System.err.println("Missing -stdin option!");
- doSystemExit(systemExitOK);
- }
- new_args[new_argc++] = args[i];
- }
- }
-
- System.setIn(input);
- try {
- com.sun.java_cup.internal.Main.main(new_args);
- }
- catch (Exception e) {
- System.err.println("Error running JavaCUP:");
- e.printStackTrace();
- doSystemExit(systemExitOK);
- }
- }
- public static void doSystemExit (boolean doExit) {
- if (doExit)
- System.exit(-1);
- }
- }
-