docs: def package_regex_filter(config, message, pattern=None, *args, **kw):
      """ All packages matching a regular expression
  
      Use this rule to include messages that relate to packages that match
      particular regular expressions
      (*i.e., (maven|javapackages-tools|maven-surefire)*).
      """
  
      pattern = kw.get('pattern', pattern)
      if pattern:
          packages = fmn.rules.utils.msg2packages(message, **config)
          regex = fmn.rules.utils.compile_regex(pattern.encode('utf-8'))
          return any([regex.search(p.encode('utf-8')) for p in packages])