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From jke...@apache.org
Subject cvs commit: jakarta-commons/cli/src/test/org/apache/commons/cli ApplicationTest.java
Date Wed, 19 Jun 2002 21:25:41 GMT
jkeyes      2002/06/19 14:25:40

  Added:       cli/src/java/org/apache/commons/cli GnuParser.java
               cli/src/test/org/apache/commons/cli ApplicationTest.java
  Log:
  GNU parser, one unit test for Ant
  
  Revision  Changes    Path
  1.1                  jakarta-commons/cli/src/java/org/apache/commons/cli/GnuParser.java
  
  Index: GnuParser.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-commons/cli/src/java/org/apache/commons/cli/GnuParser.java,v
1.1 2002/06/19 21:25:40 jkeyes Exp $
   * $Revision: 1.1 $
   * $Date: 2002/06/19 21:25:40 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2001 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 acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", 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 names without prior written
   *    permission of the Apache Group.
   *
   * 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.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  package org.apache.commons.cli;
  
  import java.util.Iterator;
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * GnuParser parses the command line arguments using the GNU style.
   * For example, -buildfile can only be interpreted as the option
   * 'buildfile'.
   *
   * @author John Keyes (jbjk at mac.com)
   */
  public class GnuParser implements CommandLineParser {
  
      /**
       * Parse the arguments according to the specified options.
       * @param options the specified Options
       * @param arguments the command line arguments
       * @return the list of atomic option and value tokens
       */
      public List parse( Options options, List arguments ) {
          return parse( options, arguments, false );
      }
  
      /**
       * Parse the arguments according to the specified options.
       * @param options the specified Options
       * @param arguments the command line arguments
       * @param stopAtNonOption specifies whether to continue parsing the
       * arguments if a non option is encountered.
       * @return the list of atomic option and value tokens
       */
      public List parse( Options options, List arguments, boolean stopAtNonOption ) {
          List args = new LinkedList();
  
          Iterator argIter = arguments.iterator();
          String   eachArg = null;
          
          boolean eatTheRest = false;
          
          while ( argIter.hasNext() ) {
              eachArg = (String) argIter.next();
              
              if ( eachArg.equals("--") ) {
                  // Look for -- to indicate end-of-options, and
                  // just stuff it, along with everything past it
                  // into the returned list.
                  
                  args.add( eachArg );
                  eatTheRest = true;
              }
              else if ( eachArg.startsWith("--") ) {
                  // It's a long-option, so doesn't need any
                  // bursting applied to it.
                  
                  args.add( eachArg );
              }
              else if ( eachArg.startsWith("-") ) {
                  
                  if ( eachArg.length() == 1) {
                      // It's not really an option, so
                      // just drop it on the list
                      
                      if ( stopAtNonOption ) {
                          eatTheRest = true;
                      }
                      else {
                          args.add( eachArg );
                      }
                  }
                  else if ( eachArg.length() == 2 ) {
                      args.add( eachArg );
                  }
                  else {
                      String charOpt = eachArg.substring( 1, 2 );
  
                      if( options.getOption( charOpt ) != null
                          && options.getOption( eachArg ) == null )
                      {
                          args.add( "-" + charOpt );
                          args.add( eachArg.substring( 2, eachArg.length() ) );
                      }
                      else {
                          args.add( eachArg );
                      }
                  }
              }
              else {
                  // It's just a normal non-option arg,
                  // so dump it into the list of returned
                  // values.
                  
                  args.add( eachArg );
                  
                  if ( stopAtNonOption ) {
                      eatTheRest = true;
                  }
              }
              
              if ( eatTheRest ) {
                  while ( argIter.hasNext() ) {
                      args.add( argIter.next() );
                  }
              }
          }
          
          return args;
      }
  }
  
  
  1.1                  jakarta-commons/cli/src/test/org/apache/commons/cli/ApplicationTest.java
  
  Index: ApplicationTest.java
  ===================================================================
  package org.apache.commons.cli;
  
  import junit.framework.Test;
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  public class ApplicationTest extends TestCase {
  
      static {
          System.setProperty( "org.apache.commons.cli.parser",
                              "org.apache.commons.cli.GnuParser");
      }
  
      public static Test suite() { 
          return new TestSuite(ApplicationTest.class); 
      }
  
      public ApplicationTest(String name)
      {
          super(name);
      }
  
      public void testAnt() {
          Options options = new Options();
          options.addOption( "help", false, "print this message" );
          options.addOption( "projecthelp", false, "print project help information" );
          options.addOption( "version", false, "print the version information and exit" );
          options.addOption( "quiet", false, "be extra quiet" );
          options.addOption( "verbose", false, "be extra verbose" );
          options.addOption( "debug", false, "print debug information" );
          options.addOption( "version", false, "produce logging information without adornments"
);
          options.addOption( "logfile", true, "use given file for log" );
          options.addOption( "logger", true, "the class which is to perform the logging" );
          options.addOption( "listener", true, "add an instance of a class as a project listener"
);
          options.addOption( "buildfile", true, "use given buildfile" );
          options.addOption( "D", true, "use value for given property" );
          options.addOption( "find", true, "search for buildfile towards the root of the filesystem
and use it" );
  
          String[] args = new String[]{ "-buildfile", "mybuild.xml" };
  
          try {
              CommandLine line = options.parse( args );
              assertTrue( "mybuild.xml" == line.getOptionValue( "buildfile" ) );
          }
          catch( ParseException exp ) {
              fail( "Unexpected exception:" + exp.getMessage() );
          }
  
          args = new String[]{ "-buildfile", "mybuild.xml",
          "-Dproperty=value" };
      
          try {
              CommandLine line = options.parse( args );
              assertEquals( line.getOptionValue( "D" ), "property=value" );
          }
          catch( ParseException exp ) {
              fail( "Unexpected exception:" + exp.getMessage() );
          }
      }
  
  }
  
  

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