Class: Igo::Unknown

Inherits:
Object
  • Object
show all
Defined in:
lib/igo/dictionary.rb

Overview

未知語の検索を行うクラス

Instance Method Summary collapse

Constructor Details

#initialize(data_dir) ⇒ Unknown

コンストラクタ

data_dir

辞書ファイルのディレクトリパス



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# File 'lib/igo/dictionary.rb', line 93

def initialize(data_dir)
  # 文字カテゴリ管理クラス
  @category = CharCategory.new(data_dir)

  # 文字カテゴリが空白の文字のID
  @space_id = @category.category(' '.unpack("U*")[0]).id
end

Instance Method Details

#search(text, start, wdic, result) ⇒ Object

検索

text
start
wdic
result


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# File 'lib/igo/dictionary.rb', line 106

def search(text, start, wdic, result)
  if RUBY_VERSION >= '1.9.0'
    txt = text.bytes.to_a
  else
    txt = text.unpack('C*')
  end
  txtu = text.unpack("U*")
  length = txtu.size
  ch = txtu[start]
  ct = @category.category(ch)

  if !result.empty? and !ct.invoke
    return
  end

  is_space = (ct.id == @space_id)
  limit = [length, ct.length + start].min

  for i in start..(limit - 1)
    wdic.search_from_trie_id(ct.id, start, (i - start) + 1, is_space, result)
    
    if((i + 1) != limit and !(@category.compatible?(ch, txt[i + 1])))
      return
    end
  end

  if ct.group and limit < length
    for i in limit..(length - 1)
      if not @category.compatible?(ch, txtu[i])
        wdic.search_from_trie_id(ct.id, start, i - start, is_space, result)
        return
      end
    end
    wdic.search_from_trie_id(ct.id, start, length - start, is_space, result)
  end
end