The filter-by-regex function supports regular expression pattern matching. It allows resources that match the given regular expression. The supported regular expression syntax is defined by the POSIX.1 specification. The regular expression \\\\* matches anything.
The parameters used with the filter-by-regex function and their description are:
Source of information.
Contains a string for prefix comparison.
The following example denies all resources from sites in the government domain:
MetaData fn=filter-by-regex src=host deny=\\\\*.gov