Provides a means of filtering out data, as well as doing search replace. Both filters and search replace use regular expressions.
The name of the variable to apply filters to.
An arbitrary number of regular expressions, which if any are matched against the filter_var, will cause it to be blocked from being sent to the parent module.
The name of the variable to the apply search/replace to.
An arbitrary number of regular expressions to be searched for. When found they will be replaced by the "replace with" parameter.