Query the filter list to see if a given filter (by name) will run.
The built-in filters "crlf" and "ident" can be queried, otherwise this
is the name of the filter specified by the filter attribute.
This will return 0 if the given filter is not in the list, or 1 if
the filter will be applied.
Query the filter list to see if a given filter (by name) will run. The built-in filters "crlf" and "ident" can be queried, otherwise this is the name of the filter specified by the filter attribute.
This will return 0 if the given filter is not in the list, or 1 if the filter will be applied.