Class: MigemoStaticDict

Inherits:
MigemoDict show all
Defined in:
lib/migemo-dict.rb

Instance Method Summary collapse

Constructor Details

#initialize(filename) ⇒ MigemoStaticDict

Returns a new instance of MigemoStaticDict.



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# File 'lib/migemo-dict.rb', line 48

def initialize (filename)
  super(filename)
  @index = File.new(filename + ".idx").read.unpack "N*"
end

Instance Method Details

#lookup(pattern) ⇒ Object 



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# File 'lib/migemo-dict.rb', line 53

def lookup (pattern)
  range = @index.bsearch_range do |idx| 
    key, values = decompose(get_line(idx))
    key.prefix_match(pattern)
  end
  if range 
    range.each do |i| 
      key, values = decompose(get_line(@index[i]))
      yield(MigemoDictItem.new(key, values)) 
    end
  end
end