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To: ant-user@jakarta.apache.org
Subject: Re: FW: properties that are not set
References: <CD76D57533C8D311A22300508B62C68771FE4A@SESTOMSX01>
From: Stefan Bodewig <bodewig@bost.de>
Date: 28 Sep 2000 13:25:47 +0200
In-Reply-To: Wim Bervoets's message of "Thu, 28 Sep 2000 13:11:36 +0200"
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Wim, I've seen your message before but thought somebody could offer a
solution.

>>>>> "WB" == Wim Bervoets <wim.bervoets@iconmedialab.com> writes:

 WB> So I use {$1}, {$2}, {$3} and create a directory with that name
 WB> each time.

To do something like this, you'd need a loop construct of some
kind. There is nothing like this built into Ant, all you could do is
to use scripting. I'm not sure how one would go about to see whether a
variable is actually set in a scripting language - JavaScript's not
really my toy.

Something like

<script language="javascript"><![CDATA[
    i = 0;
    while (VARIABLE_WITH_NAME_I_EXISTS) {
       mkdir = project.createTask("mkdir");
       mkdir.setDir(i);
       mkdir.execute();
       i++;
    }
]]></script>

would probably work - if you get the VARIABLE_WITH_NAME_I_EXISTS part
filled in, that is.

You can write your own task in Java to do this, this would probably
look like this (in execute())

    int i = 0;
    while (project.getProperty(i+"") != null) {
       Mkdir mkdir = (Mkdir) project.createTask("mkdir");
       mkdir.setDir(i+"");
       mkdir.execute();
       i++;
    }

Stefan