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Size: 1.21 KB

Versions: 10

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Contents

module Internals

  module Index

    module File

      # Index data dumped in the text format.
      #
      class Text < Basic

        # Uses the extension "txt".
        #
        def extension
          :txt
        end
        # Text files are used exclusively for
        # prepared data files.
        #
        def load
          raise "Can't load from text file. Use JSON or Marshal."
        end
        # Text files are used exclusively for
        # prepared data files.
        #
        def dump hash
          raise "Can't dump to text file. Use JSON or Marshal."
        end

        # Retrieves prepared index data in the form
        # * id,data\n
        # * id,data\n
        # * id,data\n
        #
        # Yields an id string and a symbol token.
        #
        def retrieve
          id    = nil
          token = nil
          ::File.open(cache_path, 'r:binary') do |file|
            file.each_line do |line|
              id, token = line.split ?,, 2
              yield id, (token.chomp! || token).to_sym
            end
          end
        end

        #
        #
        def open_for_indexing &block
          ::File.open cache_path, 'w:binary', &block
        end


      end

    end

  end

end

Version data entries

10 entries across 10 versions & 1 rubygems

Version Path
picky-2.5.2 lib/picky/internals/index/file/text.rb
picky-2.5.1 lib/picky/internals/index/file/text.rb
picky-2.5.0 lib/picky/internals/index/file/text.rb
picky-2.4.3 lib/picky/internals/index/file/text.rb
picky-2.4.2 lib/picky/internals/index/file/text.rb
picky-2.4.1 lib/picky/internals/index/file/text.rb
picky-2.4.0 lib/picky/internals/index/file/text.rb
picky-2.3.0 lib/picky/internals/index/file/text.rb
picky-2.2.1 lib/picky/internals/index/file/text.rb
picky-2.2.0 lib/picky/internals/index/file/text.rb