rt.so

Description

Deprecated in Essentia version 3.1.0.3. Eliminated emod modules and incorporated available functions by default.

rt.so is a module for aq_pp‘s -emod option. It provides callable RT functions for aq_pp‘s evaluation options.

Synopsis

The module is loaded by aq_pp in this way:

aq_pp -emod rt ... -eval ...

The module loading syntax is “-emod ModSpec” where ModSpec is simply “rt”, no module argument is necessary. The module file is “rt.so”. It is usually supplied and installed along with aq_pp. The module requires some support files to operate. A set of default support files are supplied along with the module.

Module functions

The evaluation functions supplied by this module are:

SearchKey(Url)

  • Extract search key from the given Url (string).
  • Return the extracted search key (string). A blank is returned if the Url does not match that of any known search engine. A “-” is returned if the Url matches that of a search engine but there is no seach key.
  • Url can be a string column’s name, a literal quoted with double quotes or an expression that evaluates to a string.
  • The value of Url must be in the form “domain/[path[?query]]”.

SearchKey2(Site, Path)

  • Same as SearchKey(Url) except that the Url argument is separated into site and path (i.e., Site+Path=Url).
  • Site is the site’s domain. Path is “/[path[?query]]”.

IpToCountry(Ip)

  • Lookup and return “country_code[:region_code]” info (string) for the given Ip.
  • Ip can be a IP column’s name, a literal IP or an expression that evaluates to an IP.

AgentParse(Agent)

  • Parse the given user-agent string and return a “browser[:OS[:DeviveType:DeviceName]]” string.
  • Agent can be a string column’s name, a literal quoted with double quotes or an expression that evaluates to a string.

AgentParse2(Agent, Ip)

  • Same as “AgentParse(Agent)” except for an additional source IP argument. The source IP is used in crawler matching, it can help improve crawler match accuracy.
  • Ip can be a IP column’s name, a literal IP or an expression that evaluates to an IP.

See Also

  • aq_pp - Record preprocessor
  • udbd - User (Bucket) Database server
  • aq_udb - Interface to Udb server