lq-text 1.17

lq-text is a full-text retrieval package.

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LICENSE TYPE:
LGPL (GNU Lesser General Public License) 
USER RATING:
3.9/5 12
DEVELOPED BY:
Liam R. E. Quin
HOMEPAGE:
www.holoweb.net
CATEGORY:
ROOT \ Text Editing&Processing \ Markup
lq-text is a full-text retrieval package. The project makes an inverted index of your files, and can then later find words or phrases in those files. This is also sometimes called a full-text (or fulltext) database, or an information retrieval system. I don't use those terms because lq-text is not ACID-compliant (database), and the phrase "information retrieval" seems overly broad.

lq-text can produce extracts from the files it matches, for example highlighting every occurrence of matched words, or producing one-line keyword-in-context (KWIC) indexes.

A higher level summary might say that lq-text is a search engine used in text information retrieval systems, based on a fulltext index.

Commands include:

lqaddfile -- add files to the database at any time
lqfile -- information about files that have been indexed
lqword -- information about words
lqphrase -- look up phrases
lqrank -- combine phrase searches, and sort the results
lqquery -- supports wildcards in phrases, after running "sortwids"
sortwids -- run after lqaddfile to enable lqquery
lqkwic -- creates keyword-in-context indexes (this is fun!)
lqshow -- show the matches on the screen (uses curses)
lqwordlist -- search the stored vocabulary
lqtext -- curses-based front end.
lq -- shell-script front end
lqcat -- fetch and print files by lq-text FID or document name

Last updated on February 4th, 2008

#text retrieval #find words #find phrases #text #word #phrase #retrieval

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