Break or Continue Implemented?

Does the for/foreach loops in ant-contrib support the equivalent of a "break" or "continue" statement? As far as I can tell, they do not.

Are there any viable work-arounds?

Thanks -T

Solution

There is no easy way to implement this behavior, but maybe the following suggestion will help.

use the the for task (i.e. not the foreach)
set the keepgoing attribute to true
use the fail task with a condition so that the items that need to be skipped will fail.

you can obtain something like a break by defining a property myBreakProperty whenever you detect that you need to break

 <for list="a,b,c,d,e" param="letter" keepgoing="true">
    <sequential>
       <if>
         <equals arg1="@{letter}" arg2="c" />
       <then>
         <property name="myBreakProperty" value="nevermind the value"/>
       </then>
     </if>
     <fail if="myBreakProperty"/>
     <echo>Letter @{letter}</echo>
    </sequential>
 </for>

The output will be: Letter a Letter b

To obtain something like a continue :

 <for list="a,b,c,d,e" param="letter" keepgoing="true">
    <sequential>
       <if>
         <equals arg1="@{letter}" arg2="c" />
       <then>
         <fail/>
       </then>
     </if>
     <echo>Letter @{letter}</echo>
    </sequential>
 </for>

The output will be: Letter a Letter b Letter d Letter e