Queries can be constrained to items of a particular format. The XML representation for these constraints is:
<format> format </format>Index items are classified according to basic format, as follows:
HTML – Simple HTML of any style
Text – Raw text format
PDF – Adobe format
XHTML – w3.org XML schema for HTML
XML – XML format
Other – Any other format, typically from word or data processing software, such as Word, Power Point or Excel
All – Any type
The format operand can be one of the above types.
