| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 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 org.apache.xalan.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 org.apache.xalan.xsltc.utils.JavaCupRedirect [args] -stdin filename.ext</code> |
| * |
| * @author Morten Jorgensen |
| * @version $Id$ |
| */ |
| 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 { |
| java_cup.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); |
| } |
| } |