Free search people software for linux

Search::VectorSpace is a very basic vector-space search engine.

SYNOPSIS

use Search::VectorSpace;

my @docs = ...;
my $engine = Search::VectorSpace->new( docs => @docs, threshold => .04);
$engine->build_index();

while ( my $query = ) {
my %results = $engine->search( $query );
print join "n", keys %results;
}

This module takes a list of documents (in English) and builds a simple in-memory search engine using a vector space model. Documents are stored as PDL objects, and after the initial indexing phase, the search should be very fast. This implementation applies a rudimentary stop list to filter out very common words, and uses a cosine measure to calculate document similarity. All documents above a user-configurable similarity threshold are returned.

Search::Tools are tools for building search applications.

SYNOPSIS

use Search::Tools;

my $re = Search::Tools->regexp(query => the quick brown fox);

my $snipper = Search::Tools->snipper(query => $re);

my $hiliter = Search::Tools->hiliter(query => $re);

for my $result (@search_results)
{
print $hiliter->light( $snipper->snip( $result->summary ) );
}

Search::Tools is a set of utilities for building search applications. Rather than adhering to a particular search application, the goal of Search::Tools is to provide general-purpose methods for common search application features. Think of Search::Tools like a toolbox rather than a hammer.

Examples include:

Parsing search queries for the meaningful keywords
Rich regular expressions for locating keywords in the original indexed documents
Contextual snippets showing query keywords
Highlighting of keywords in context

Search::Tools is derived from some of the features in HTML::HiLiter and SWISH::HiLiter, but has been re-written with an eye to accomodating more general purpose features.

Search::QueryParser parses a query string into a data structure suitable for external search engines.

SYNOPSIS

my $qp = new Search::QueryParser;
my $s = +mandatoryWord -excludedWord +field:word "exact phrase";
my $query = $qp->parse($s) or die "Error in query : " . $qp->err;
$someIndexer->search($query);

# query with comparison operators and implicit plus (second arg is true)
$query = $qp->parse("txt~^foo.* date>=01.01.2001 date<<less