of open element

Syntax
of open element namespace-modifier? (element-name | element-name-list)


Purpose

of open element is an element qualifier that selects the current element or one of its ancestors using element-name, or by using the first name in element-name-list that matches the current element or one of its ancestors. If there is more than one opened element with the same name in the element stack of the currently-active parse, it will always refer to the innermost one.

For example, in the following XML fragment, when parsing the innermost title element, 

  <manual>
    <chapter>
      <title>First Chapter</title>
      <p>Introduction paragraph</p>
      <section id="S01.01">
        <title>First Section</title>
        <section id="S01.01.01">
          <title>Nested Section</title>
          ...
        </section>
        ...
      </section>
    </chapter>
  </manual>

of open element can refer to elements title, section, chapter, or manual. Additionally, when parsing the innermost title, the expression attribute "id" of open element "section" would evaluate to S01.01.01.

Related Syntax