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Message-ID: <46A5FC6E.3080006@grafidog.com>
Date: Tue, 24 Jul 2007 07:19:42 -0600
From: Dale Anson <danson@grafidog.com>
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To: Ant Users List <user@ant.apache.org>
Subject: Re: AW: random number generator
References: <EF39D77A486C234B9D9933091CE6D21EDAF797@z011034.bk.fin.local>
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Yet another option, use the math task from antelope 
(http://antelope.tigris.org).  Here's an example from the docs:

    <!-- demo calculating a random number between 0 and 100 -->
    <math result="result">
        <op op="rint">
            <op op="*">
                <num value="100"/>
                <op op="random"/>
            </op>
        </op>
    </math>
    <echo>a random number between 0 and 100: ${result}</echo>


Dale


Jan.Materne@rzf.fin-nrw.de wrote:
> <project>
>     <tempfile property="temp.dir"/>
>     <mkdir dir="${temp.dir}"/>
> </project>    
>
> Jan 
>
>   
>> -----Urspr�ngliche Nachricht-----
>> Von: Mario Madunic [mailto:hajduk@imag.net] 
>> Gesendet: Samstag, 21. Juli 2007 16:25
>> An: Ant Users List
>> Betreff: Re: random number generator
>>
>> Thank you Gilbert,
>>
>> it works like a charm.
>>
>> Mario
>>
>> Quoting Gilbert Rebhan <ant@schillbaer.de>:
>>
>>     
>>> Hi,
>>>
>>> Mario Madunic wrote:
>>>       
>>>> Hi,
>>>>
>>>> I'm trying to generate a random number to be used as a 
>>>>         
>> temporary directory
>>     
>>> name
>>>       
>>>> through a multi step xslt process. I'm using Ant 1.6.5 and 
>>>>         
>> Java 1.6.0-b105
>>     
>>>> I receive the following error
>>>>
>>>>    [random] Jul 20, 2007 9:11:27 PM org.apache.bsf.BSFManager exec
>>>>    [random] SEVERE: Exception :
>>>>    [random] java.security.PrivilegedActionException:
>>>> org.apache.bsf.BSFException: JavaScript Error: Internal Error:
>>>> org.mozilla.javascript.EcmaError: ReferenceError: "self" 
>>>>         
>> is not defined.
>>     
>>> if you're already use BSF with <script> task i would recommend
>>> JRuby, get the JRuby.jar from =
>>>
>>> http://dist.codehaus.org/jruby/jruby-complete-1.0.jar
>>>
>>> so it's a simple as =
>>>
>>> <target name="depends">
>>>    <script language="ruby">
>>>    <![CDATA[
>>>      $project.setProperty "myrand", rand(4711).to_s
>>>    ]]>
>>>    </script>
>>> </target>
>>>
>>> <target name="main" depends="depends">
>>>    <echo>
>>>      $${myrand} == ${myrand}
>>>    </echo>
>>> </target>
>>>
>>> main:
>>>       [echo] ${myrand} == 718
>>> BUILD SUCCESSFUL
>>> Total time: 1 second
>>>
>>> Just put an integer to the Kernel#rand method.
>>> If you want a floating point number, just use
>>> rand without (integer) =
>>>
>>> <script language="ruby">
>>>    <![CDATA[
>>>      $project.setProperty "myrand", rand.to_s
>>>    ]]>
>>>   </script>
>>>
>>>
>>> Regards, Gilbert
>>>
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>>>       
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>>     
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