View source for Ht-//Dig

{{DISPLAYTITLE:ht-//Dig}} 
{{correct title|reason=namespace|edit=substitution|title=ht://Dig}}
{{Infobox software
| name = {{text|ht|://Dig}}
| logo = HtDig_logo.png
| screenshot = 
| caption = 
| developer = 
| latest_release_version = 3.2.0b6
| latest_release_date = {{Release date and age|2004|06|16|df=yes}}
| operating_system = [[Unix]]
| programming_language = [[C++]]
| genre = [[Web search engine]]
| license = [[GNU General Public License]]
| website = {{URL|http://htdig.sourceforge.net/}}
}}
'''{{text|ht|://Dig}}''' is a [[free software]] [[index (search engine)|index]]ing and [[search engine|searching]] system created in 1995 by Andrew Scherpbier while he was employed at [[San Diego State University]].<ref name="openvms">Winston, A.:"OpenVMS with Apache, OSU and WASD: The Nonstop Webserver", page 179. Digital Press, 2003</ref><ref name="htdig">{{Cite web |url=http://htdig.sourceforge.net/author.html |title=ht://Dig: About the Author |access-date=2020-02-08 |archive-url=https://web.archive.org/web/20070702220848/http://htdig.sourceforge.net/author.html |archive-date=2007-07-02 |url-status=live }}</ref> It can provide a [[search engine]] for a single website.

It includes three groups of files: a set of tools for indexing, a set of tools for searching, and a set of HTML files for building the user interface to access the search engine.<ref name="lnxrev">{{usurped|1=[https://web.archive.org/web/20070216045320/http://www.linux-mag.com/id/510/ Review by "Linux Magazine"]}}</ref> {{text|ht|://Dig}} works differently from most search engines as most engines use a two-step process, building an index and searching it. {{text|ht|://Dig}} indexes pages in full, then processes the pages into a searchable form later using [[soundex]] and [[metaphone]].<ref name="algdesign">Skiena, S.:"The Algorithm Design Manual", page 408. Springer Publishing, 1998</ref> {{text|ht|://Dig}} also stores [[fuzzy logic|fuzzy]] match information instead of using a [[dynamical system|dynamic]] algorithm.<ref>Behcet Sarikaya: "Geographic Location in the Internet", pages 145-146. Springer Publishing, 2002</ref> At one time, over 500 organizations used {{text|ht|://Dig}} to index sites they owned. Notable sites included [[Blizzard Entertainment]], [[Greenpeace]], and [[Mozilla Foundation|The Mozilla Foundation]].<ref name="htuses">[http://htdig.sourceforge.net/uses.html ht://Dig: Sites that Use ht://Dig]</ref>

The last official release is Dig 3.2.0b6 announced on 16 June 2004. Only sporadic maintenance is in evidence since that date at the project's [[software bug|bug]] reporting page. It was used by the [[GNU project]]'s website for a long time but was replaced in 2008 with [[Hyper Estraier]]{{Citation needed|reason=This claim needs a reliable source.|date=October 2013}}.

== See also ==
{{Portal|Free and open-source software}}
* [[Lucene]]
* [[Xapian]]
* [[Apache Solr]]

==References==
{{Reflist}}

==External links==
* {{Official website|http://htdig.sourceforge.net/}}

{{DEFAULTSORT:Ht-  Dig}}
[[Category:Free search engine software]]