< prev index next >

src/java.scripting/share/classes/com/sun/tools/script/shell/Main.java

Print this page
rev 48074 : 8189102: All tools should support -?, -h and --help
Reviewed-by: kvn, jjg, weijun, alanb, rfield, ksrini
   1 /*
   2  * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 105                 String[] result = new String[numScriptArgs];
 106                 System.arraycopy(args, startScriptArg, result, 0, numScriptArgs);
 107                 return result;
 108             }
 109 
 110             if (arg.startsWith("-D")) {
 111                 String value = arg.substring(2);
 112                 int eq = value.indexOf('=');
 113                 if (eq != -1) {
 114                     System.setProperty(value.substring(0, eq),
 115                             value.substring(eq + 1));
 116                 } else {
 117                     if (!value.equals("")) {
 118                         System.setProperty(value, "");
 119                     } else {
 120                         // do not allow empty property name
 121                         usage(EXIT_CMD_NO_PROPNAME);
 122                     }
 123                 }
 124                 continue;
 125             } else if (arg.equals("-?") || arg.equals("-help")) {




 126                 usage(EXIT_SUCCESS);
 127             } else if (arg.equals("-e")) {
 128                 seenScript = true;
 129                 if (++i == args.length)
 130                     usage(EXIT_CMD_NO_SCRIPT);
 131 
 132                 ScriptEngine se = getScriptEngine(currentLanguage);
 133                 addStringSource(se, args[i]);
 134                 continue;
 135             } else if (arg.equals("-encoding")) {
 136                 if (++i == args.length)
 137                     usage(EXIT_CMD_NO_ENCODING);
 138                 currentEncoding = args[i];
 139                 continue;
 140             } else if (arg.equals("-f")) {
 141                 seenScript = true;
 142                 if (++i == args.length)
 143                     usage(EXIT_CMD_NO_FILE);
 144                 ScriptEngine se = getScriptEngine(currentLanguage);
 145                 if (args[i].equals("-")) {


   1 /*
   2  * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 105                 String[] result = new String[numScriptArgs];
 106                 System.arraycopy(args, startScriptArg, result, 0, numScriptArgs);
 107                 return result;
 108             }
 109 
 110             if (arg.startsWith("-D")) {
 111                 String value = arg.substring(2);
 112                 int eq = value.indexOf('=');
 113                 if (eq != -1) {
 114                     System.setProperty(value.substring(0, eq),
 115                             value.substring(eq + 1));
 116                 } else {
 117                     if (!value.equals("")) {
 118                         System.setProperty(value, "");
 119                     } else {
 120                         // do not allow empty property name
 121                         usage(EXIT_CMD_NO_PROPNAME);
 122                     }
 123                 }
 124                 continue;
 125             } else if (arg.equals("-?") ||
 126                        arg.equals("-h") ||
 127                        arg.equals("--help") ||
 128                        // -help: legacy.
 129                        arg.equals("-help")) {
 130                 usage(EXIT_SUCCESS);
 131             } else if (arg.equals("-e")) {
 132                 seenScript = true;
 133                 if (++i == args.length)
 134                     usage(EXIT_CMD_NO_SCRIPT);
 135 
 136                 ScriptEngine se = getScriptEngine(currentLanguage);
 137                 addStringSource(se, args[i]);
 138                 continue;
 139             } else if (arg.equals("-encoding")) {
 140                 if (++i == args.length)
 141                     usage(EXIT_CMD_NO_ENCODING);
 142                 currentEncoding = args[i];
 143                 continue;
 144             } else if (arg.equals("-f")) {
 145                 seenScript = true;
 146                 if (++i == args.length)
 147                     usage(EXIT_CMD_NO_FILE);
 148                 ScriptEngine se = getScriptEngine(currentLanguage);
 149                 if (args[i].equals("-")) {


< prev index next >