Name

html — Optional

Synopsis

<message id="3" to="dj@yak" type="chat">
  <html xmlns="http://www.w3.org/1999/xhtml">
    <body>
      <span style="font-family: Arial; font-size: 10pt">
        This is really <em>nice!</em>
      </span>
      <br/>
    </body>
  </html>
  <body>This is really nice!</body>
</message>

The <html/> tag is for support of messages formatted in Extensible HyperText Markup Language (XHTML). The normal <body/> tag carries plain text; text formatted with XHTML markup can be carried in <message/> elements inside the <html/> subelement.

The markup must be qualified by the XHTML namespace http://www.w3.org/1999/xhtml (as shown in the example) and conform to the markup described in the XHTML-Basic specification defined at http://www.w3.org/TR/xhtml-basic. This is despite the name of the tag being html and not xhtml.

Note that the content of the message must also be repeated in a normal <body/> subelement without formatting, to comply with the “lowest common denominator” support for different Jabber clients—not all of them will be able to interpret the XHTML formatting, so they will need to receive the message content in a way that they can understand.

The <html/> subelement effectively is a wrapper around a second, alternative, <body/> subelement.

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