Class: VinaryTree::Libdictenstein::PersistentVocabulary

Inherits:
Dictionary
  • Object
show all
Defined in:
lib/vinary_tree/libdictenstein.rb

Instance Attribute Summary

Attributes inherited from Dictionary

#handle

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Dictionary

#capabilities, #close, #each, #entries, #entry_stream, finalizer, #get, #get_u64, #include?, #include_u64?, #initialize, #keys, #kind, #length, #values, #with_resource

Constructor Details

This class inherits a constructor from VinaryTree::Libdictenstein::Dictionary

Class Method Details

.create(path) ⇒ Object 



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# File 'lib/vinary_tree/libdictenstein.rb', line 456

def self.create(path) = open_native(path, true)

.open(path) ⇒ Object 



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# File 'lib/vinary_tree/libdictenstein.rb', line 457

def self.open(path) = open_native(path, false)

.open_native(path, create) ⇒ Object 



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# File 'lib/vinary_tree/libdictenstein.rb', line 458

def self.open_native(path, create)
  text = File.expand_path(path).b; output = Native.pointer_output
  function = create ? :ldict_persistent_vocab_create : :ldict_persistent_vocab_open
  Libdictenstein.check(Native.public_send(function, text, text.bytesize, output)); new(Native.read_pointer(output))
end

Instance Method Details

#checkpoint ⇒ Object 



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# File 'lib/vinary_tree/libdictenstein.rb', line 472

def checkpoint = @handle.with_pointer { |pointer| Libdictenstein.check(Native.ldict_dictionary_checkpoint(pointer)) }

#put(term, index) ⇒ Object 



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# File 'lib/vinary_tree/libdictenstein.rb', line 463

def put(term, index) = put_text(term, index)

#term(index) ⇒ Object 



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# File 'lib/vinary_tree/libdictenstein.rb', line 464

def term(index)
  length, found = Native.size_output, Native.byte_output
  @handle.with_pointer { |pointer| Libdictenstein.check(Native.ldict_vocab_get_term(pointer, index, 0, 0, length, found)) }
  return nil if found[0].zero?
  output = Fiddle::Pointer.malloc(Native.read_size(length), Fiddle::RUBY_FREE)
  @handle.with_pointer { |pointer| Libdictenstein.check(Native.ldict_vocab_get_term(pointer, index, output, output.size, length, found)) }
  output[0, Native.read_size(length)].force_encoding(Encoding::UTF_8)
end