content: Replace the content of an element
  
  Syntax

    'tal:content' syntax::
  
      argument ::= (['text'] | 'structure') expression
  
  Description

    Rather than replacing an entire element, you can insert text or
    structure in place of its children with the 'tal:content'
    statement.  The statement argument is exactly like that of
    'tal:replace', and is interpreted in the same fashion.  If the
    expression evaluates to *nothing*, the statement element is left
    childless.  If the expression evaluates to *default*, then the
    element's contents are unchanged.

    *Note: The default replacement behavior is 'text'.*

  Examples

    Inserting the user name::

      <p tal:content="user/getUserName">Fred Farkas</p>

    Inserting HTML/XML::

      <p tal:content="structure here/getStory">marked <b>up</b>
      content goes here.</p>

  See Also

    "'tal:replace'":tal-replace.stx