# Script Task

## Script

### Description

Execute a script in a BSF supported language.

Note: This task depends on external libraries not included in the Ant distribution. See Library Dependencies for more information.

All items (tasks, targets, etc) of the running project are accessible from the script, using either their `name` or `id` attributes. The name "project" is a pre-defined reference to the Project, which can be used instead of the project name.

Scripts can do almost anything a task written in Java could do.

### Parameters

Attribute | Description | Required
language | The programming language the script is written in. Must be a supported BSF language | No
src | The location of the script as a file, if not inline | No

### Examples

>     <project name="squares" default="main" basedir=".">

>       <target name="setup">

>         <script language="javascript"> <![CDATA[

>           for (i=1; i<=10; i++) {
>             echo = squares.createTask("echo");
>             main.addTask(echo);
>             echo.setMessage(i*i);
>           }

>         ]]> </script>

>       </target>

>       <target name="main" depends="setup"/>

>     </project>

generates

>     setup:

>     main:
>     1
>     4
>     9
>     16
>     25
>     36
>     49
>     64
>     81
>     100

>     BUILD SUCCESSFUL

Another example, using references by id and two different scripting languages:

>     <project name="testscript" default="main">
>       <target name="sub">
>         <echo id="theEcho"/>
>       </target>

>       <target name="sub1">
>         <script language="netrexx"><![CDATA[
>           theEcho.setMessage("In sub1")
>           sub.execute
>         ]]></script>
>       </target>

>       <target name="sub2">
>         <script language="javascript"><![CDATA[
>           theEcho.setMessage("In sub2");
>           sub.execute();
>         ]]></script>
>       </target>

>       <target name="main" depends="sub1,sub2"/>
>     </project>

generates

>     sub1:
>     In sub1

>     sub2:
>     In sub2

>     main:

>     BUILD SUCCESSFUL

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