ant store variable in scriptdef or call task in script def - variables

Question

My knowledge of ant is close to nothing.
i do understand it should not be used as a programming language but i'm a consumer of a certain ant project and want to modify something in my own project while using the libraries that project offers me.
the main point i want to do is I have a string and need to modify it before sending it to the parent project target.
i'll try providing a code easy to understand, but at the moment the part i have left is:
either store the value in a variable instead of a property (not sure how to do this)
directly call the other target from my javascript function.
so this is the code:
<target name="deploy-custom" depends="init">
<scriptdef name="replaceString" language="javascript">
<attribute name="fileIn" />
<attribute name="directoryFile" />
<![CDATA[echo = project.createTask("echo");
var fileName = attributes.get("filein"); //get attribute for scriptdef
var directoryIn = attributes.get("directoryfile"); //get attribute for scriptdef
echo.setMessage("file name: " + fileName );
echo.perform( );
echo.setMessage("dir in " + directoryIn );
echo.perform( );
var fileOut = fileName.replace(directoryIn, "");
echo.setMessage("replace " + fileOut );
echo.perform( );
project.setProperty("undeploy_name", fileOut);]]>
</scriptdef>
<echo message="executing target deploy-custom" />
<for param="file">
<path>
<fileset dir="${mydir}/content/custom-deploy">
<include name="*.war" />
</fileset>
</path>
<sequential>
<replaceString fileIn="#{file}" directoryFile="${mydir}/content/custom-deploy/" />
<JBossCLI port="${jboss.port.management-native}">
<undeploy namePattern="${undeploy_name}" />
</JBossCLI>
<deployToLiferay file="#{file}" />
</sequential>
</for>
<echo>ABRS custom banklets deployed!</echo>
</target>
so my question is at the time i try to save the undeploy_name property can I just call the target deployToLiferay? if not is there a way i can save that in a variable instead a property?
i don't mind using other language instead of javascript but not really sure how can i do what i need to do.
based on the info i found in here i'm now trying to focus on the using the script directly. this is the info i get:
https://coderanch.com/t/108191/call-ant-macrodef-groovy-script
i tried to modify my script to something like this:
<macrodef name="undeploy">
<attribute name="undplPattern" />
<sequential>
<echo message="undeploy undplPattern #{undplPattern}" />
<JBossCLI port="${jboss.port.management-native}">
<undeploy namePattern="#{undplPattern}" />
</JBossCLI>
</sequential>
</macrodef>
<scriptdef name="undeploy-pattern" language="javascript">
<attribute name="fileIn" />
<attribute name="directoryFile" />
<![CDATA[
var echo = project.createTask("echo");
var fileName = attributes.get("filein"); //get attribute for scriptdef
var directoryIn = attributes.get("directoryfile"); //get attribute for scriptdef
echo.setMessage("file name: " + fileName );
echo.perform( );
echo.setMessage("dir in " + directoryIn );
echo.perform( );
var fileOut = fileName.replace(directoryIn, "");
fileOut = fileOut.replace(/\d+/g, "");
fileOut = fileOut.replace("..",".*");
fileOut = fileOut.replace(/[.]/g,"\\.");
fileOut = fileOut.replace("web-\\.*\\.war","web.*");
echo.setMessage("undeploy pattern transformation: " + fileOut );
echo.perform( );
var undeploy_t = project.createTask("undeploy");
undeploy_t.setDynamicAttribute("undplPattern", fileOut);
undeploy_t.perform( );
]]>
</scriptdef>
called from:
<echo message="item #{file}" />
<undeploy-pattern fileIn="#{file}" directoryFile="${currentScriptDirectory}/content/custom-banklets/" />
<deployToLiferay file="#{file}" />
after this modifications it now fails when i try to set setDynamicAttribute and perform that task.
08:01:18.492: item /data/com.client-dshbrd-banklet-web-0.0.1.war
08:01:18.509: file name: /data/com.client-dshbrd-banklet-web-0.0.1.war
08:01:18.510: dir in /data/
08:01:18.520: undeploy pattern transformation: com\.client-dshbrd-banklet-web.*
08:01:18.528: COMMAND 'deploy-custom-banklets' FAILED (execution time: 2 seconds)
08:01:18.528: * /data/contribution.xml:250: The following error occurred while executing this line:
08:01:18.528: * /data/contribution.xml:259: required attribute undplpattern not set

Answer 1

I don't think you need an embedded script. I reviewed the logic and I think it would be simpler to use the ANT basename task in order to obtain the file name.
Example
├── build.xml
└── src
└── files
└── file1.war
Project run as follows
$ ant
build:
[echo] file1.war
build.xml
<project name="demo" default="build">
<target name="build">
<basename property="undeploy_name" file="src/files/file1.war"/>
<echo>${undeploy_name}</echo>
</target>
</project>