jdk8-mips64-public/nashorn: samples/shell.js@f109bb255b80

     1 /*

     2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  *

     8  *   - Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer.

    10  *

    11  *   - Redistributions in binary form must reproduce the above copyright

    12  *     notice, this list of conditions and the following disclaimer in the

    13  *     documentation and/or other materials provided with the distribution.

    14  *

    15  *   - Neither the name of Oracle nor the names of its

    16  *     contributors may be used to endorse or promote products derived

    17  *     from this software without specific prior written permission.

    18  *

    19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

    20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    26  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    27  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    28  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    29  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    30  */

    32 /**

    33  * This is a simple shell tool in JavaScript.

    34  *

    35  * Runs any operating system command using Java "exec". When "eval" command is

    36  * used, evaluates argument(s) as JavaScript code.

    37  */

    39 var imports = new JavaImporter(java.io, java.lang, java.util);

    41 function prompt() {

    42     java.lang.System.out.print(">");

    43 }

    45 with (imports) {

    46     var reader = new BufferedReader(new InputStreamReader(System["in"]));

    47     var line = null;

    48     prompt();

    49     while ((line = reader.readLine()) != null) {

    50         if (line != "") {

    51             var args = line.split(" ");

    52             try {

    53                 if (args[0] == "eval") {

    54                     var code = line.substring("eval".length);

    55                     var res = eval(code);

    56                     if (res != undefined) {

    57                         print(res);

    58                     }

    59                 } else {

    60                     var argList = new ArrayList();

    61                     for (i in args) { argList.add(args[i]); }

    62                     var procBuilder = new ProcessBuilder(argList);

    63                     procBuilder.redirectErrorStream();

    64                     var proc = procBuilder.start();

    65                     var out = new BufferedReader(new InputStreamReader(proc.getInputStream()));

    66                     var line = null;

    67                     while ((line = out.readLine()) != null) {

    68                         System.out.println(line);

    69                     }

    70                     proc.waitFor();

    71                 }

    72             } catch (e) {

    73                 print(e);

    74             }

    75         }

    76         prompt();

    77     }

    78 }

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