-Preprocessor directives are similar to a [[WikiLink]] in form, except they
-contain spaces and parameters. The general form is:
-
-\\[[directive param="value" param="value"]]
-
-This gets expanded before the rest of the page is processed, and can be used
-to transform the page in various ways.
-
-The quotes around values can be omitted if the value is a simple word.
-Also, some directives may use parameters without values, for example:
-
-\\[[tag foo]]
-
-Note that if a preprocessor directive has no parameters, a space still must
-be put after its name, to avoid confusion with a [[WikiLink]]. For example:
-
-\\[[pagecount ]]