Extracting individual tokens after using stringtokenizer

I am trying to extract individual tokens in ANT after using stringtokenizer to separate the tokens out.  Is it possible? How do I do it without using any other external ant libraries like ant-contrib?

I attempted to do below, but am stuck at extracting individual tokens

<property name="dirlist" value="./src:./.apt_generated:abc" />
<loadresource property="dirseplist">
      <string value="${dirlist}" />
      <filterchain>
            <tokenfilter>
            <stringtokenizer  delims=":" id="dirliststr"/>
            <replaceregex pattern="(.+)" replace="[\1]" />
            </tokenfilter>
      </filterchain>
</loadresource>
<echo level="info" message="dirlist: '${dirlist}'" />
<echo level="info" message="dirseplist : '${dirseplist}'" />

And the output is
     [echo] dirlist: './src:./.apt_generated:abc'
     [echo] dirseplist : '[./src]:[./.apt_generated]:[abc]'

Thanks





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