[ZDP] BackTalk to Document The Zope Book (2.5 Edition)/Variables and Advanced DTML

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A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZopeBook/current/AdvDTML.stx#1-2

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  Here's a very tricky error that almost all newbies encounter.
  Imagine you have a DTML Document called *zooName*.  This
  document contains an HTML form like the following::

    <dtml-var standard_html_header>

      <dtml-if zooName>

        <p><dtml-var zooName></p>

      <dtml-else>

        <form action="<dtml-var URL>" method="GET">
          <input name="zooName">
          <input type="submit" value="What is zooName?">
        </form>

      </dtml-if>  

    <dtml-var standard_html_footer>

    % Anonymous User - June 15, 2002 10:02 am:
     Why wouldn't the form action code use a Zope object name instead of the URL variable? I thought that in one
     of the previous examples form actions were more object-oriented than this.

    % Anonymous User - Aug. 24, 2002 5:25 am:
     I recieve:
     Zope has encountered an error while publishing this resource.

     Error Type: SystemError
     Error Value: Excessive recursion

     ?

    % Anonymous User - Sep. 26, 2002 1:35 am:
     :) thats the idea! Cary on reading..