Amatch is a library for approximate string matching and searching in strings. Several algorithms can be used to do this, and it's also possible to compute a similarity metric number between 0.0 and 1.0 for two given strings.

SimpleSearch is a simple vector space text search engine.

Pimki in a Personal Information Manager based on Instiki's Wiki technology. Besides all the rich features and excellent look of Instiki, a few features have been added, such as: a personal blog, todo lists, graphical mapping, quick-links, advanced search and others.

XDCC-Fetch, written entirely in Ruby, is an intuitive, no-nonsense tool for searching, collecting and downloading XDCC announcements within IRC channels. XDCC-Fetch is released under the BSD license and available for free.

RSI is a simple full text search engine implementation in Ruby. It aims to be easily useful within other programs: simple to set up, simple to use. An emphasis has been placed on getting functionality out the door, rather than heavy optimization (that can come later). It still appears to be re...

FxRi is an FXRuby interface to the RI documentation, with a search engine that allows for search-on-typing.

GeoIP searches a GeoIP database for a given host or IP address, and returns information about the country where the IP address is allocated, and the city, ISP and other information, if you have that database version.

Generates Rails code implementing a search system using SimpleSearch for your Rails app.

Ruby/Odeum is a simple full text reverse indexer that lets you index a set of files and then search through them very quickly.

rb_cdio is a library for Ruby that creates a module CdIo and several classes to use the libcdio and libccdb library. The use of libcddb is optional. The libcdio package contains a library which encapsulates CD-ROM reading and control. Applications wishing to be oblivious of the OS- and device-dep...

RailStat generator creates a real-time web site statistics system. Features: - Page views paths on each session - Number of total hits / unique hits - Operating system and browser - Countries and languages - Referrers and search strings - Flash / JavaVM / Javascript / ScreenWidth / ColorDepth

An acts-as Mixin for easy applying and searching tags/folksnomies on Active Record objects

Ferret is a super fast, highly configurable search library.

OpenSearch is simple format of sharing of search results by A9. See opensearch.a9.com/ for detail. This library is for OpenSearch version 1.0 or 1.1

Gonzui is a source code search engine for accelerating open source software development. Gonzui for Emacs is an EmacsRuby program to use gonzui in Emacs.

acts_as_searchable adds fulltext searching capabilities based on Hyper Estraier to an ActiveRecord module.

Client for the Search/Retrieve via URL (SRU) protocol. http://www.loc.gov/standards/sru/

An interface to Yahoo's Search services.

Full-text search of Subversion commit logs

Langhelp creates an index of documents of various programming languages and shell commands. Languages enables you to search documents instantly in Emacs. If you are a programmer, then you may sometimes wonder, what is the usage of this function? If you use Unices, then you may wonder, what is the...