A flexible text-searching library built on top of redis.
Sorted suffix indexing allows you to search for any substring within a set of documents. First, index a collection of documents and associated ids.
require 'scripsi'
Scripsi.connect # connect to a running redis server
ssi = Scripsi::SortedSuffixIndexer.new "myindexer"
ssi.index('1',"Epistulam ad te scripsi.")
ssi.index('2',"I've written you a letter.")
ssi.index('3',"Quisnam Tusculo espistulam me misit?")
ssi.index('4',"Who in Tusculum would've sent me a letter?")
You can then search for any substring, and the indexer will return the ids of the documents where that substring appears.
ssi = Scripsi.indexer "myindexer"
ssi.search("te") # => ["1","2","4"]
ssi.search("Tuscul") # => ["3","4"]
ssi.search("Tusculu") # => ["4"]
ssi.search("you a le") # => ["2"]
If we want to get more information about the match, we can use the matches method:
match = ssi.matches("you a le").first
match.doc # => "2"
match.start # => 13
match.end # => 21
ssi.documents[match.doc][match.start...match.end] # => "you a le"
You can also retrive the stored documents efficiently:
ssi.documents # lazy list of documents
ssi.documents['3'] # document with id '3'