Retrieves archive link content based on predefined or custom code.The format can be one of four styles. The 'link' for head element, 'option'
for use in the select element, 'html' for use in list (either ol or ul HTML
elements). Custom content is also supported using the before and after
parameters.
The 'link' format uses the `` HTML element with the **archives**
relationship. The before and after parameters are not used. The text
parameter is used to describe the link.
The 'option' format uses the option HTML element for use in select element.
The value is the url parameter and the before and after parameters are used
between the text description.
The 'html' format, which is the default, uses the li HTML element for use in
the list HTML elements. The before parameter is before the link and the after
parameter is after the closing link.
The custom format uses the before parameter before the link ('a' HTML
element) and the after parameter after the closing link tag. If the above
three values for the format are not used, then custom format is assumed.