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  • Committer: Bazaar Package Importer
  • Author(s): Colin Watson
  • Date: 2008-06-19 01:25:07 UTC
  • Revision ID: james.westby@ubuntu.com-20080619012507-adt75omul1shucde
Tags: 0.6.9ubuntu1
* Resynchronise with Debian. Remaining changes:
  - Recommends: firefox-3.0.
  - Exit zero if the bdb module is not available; this usually indicates
    that dhelp is not configured yet.

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tmp/xapian/simplesearch.rb
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#!/usr/bin/env ruby
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require 'xapian'
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class Index
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  def initialize(path)
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    @path = path
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    @xapian_database = Xapian::Database.new(@path)
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  end
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  def search(terms, user_opts={})
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    opts = {:offset => 0, :limit => 10}.merge(user_opts)
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    query_parser = Xapian::QueryParser.new
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    query_parser.database = @xapian_database
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    query_parser.stemmer = Xapian::Stem.new("english")
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    query_parser.stemming_strategy = Xapian::QueryParser::STEM_SOME
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    enquire = Xapian::Enquire.new(@xapian_database)
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    enquire.query = query_parser.parse_query(terms)
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    return XapianResultSet.new(enquire.mset(opts[:offset], opts[:limit]))
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  end
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end
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class SearchResultSet; end
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class XapianResultSet < SearchResultSet
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  def initialize(mset)
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    @mset = mset
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  end
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  def each(&blk)
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    @mset.matches.each &blk
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  end
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  def page_size
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    @mset.size
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  end
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  def total_results
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    @mset.matches_estimated
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  end
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end
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if ARGV.size < 2
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  $stderr.puts "Usage: #{$0} PATH_TO_DATABASE QUERY"
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  exit 99
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end
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# Open the database for searching.
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database = Index.new(ARGV[0])
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result_set = database.search(ARGV[1..-1].join(' '))
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# Display the results.
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puts "#{result_set.total_results} results found."
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puts "Matches 1-#{result_set.page_size}:\n"
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result_set.each {|m|
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  puts "#{m.rank + 1}: #{m.percent}% docid=#{m.docid} [#{m.document.data}]\n"
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}