Class: Langue::Morphemes

Inherits:
Array
  • Object
show all
Defined in:
lib/langue/morphemes.rb

Instance Method Summary collapse

Instance Method Details

#at(index) ⇒ Object 



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# File 'lib/langue/morphemes.rb', line 9

def at(index)
  morpheme = self[index]
  morpheme.nil? || !block_given? ? morpheme : yield(morpheme)
end

#pad(text) ⇒ Object 



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# File 'lib/langue/morphemes.rb', line 14

def pad(text)
  whitespace_regexp = /^([\x09\x0A\x0B\x0D\x20])+/
  differece_error = ArgumentError.new('maybe different from the original text')

  morphemes = Morphemes.new
  index = 0

  while index < size
    morpheme = self[index]
    morpheme_text = morpheme.text

    if text[0, morpheme_text.size] == morpheme_text
      text = text[morpheme_text.size..-1]
      morphemes << morpheme
      index += 1
    elsif text =~ whitespace_regexp
      whitespace = $1
      text = text[whitespace.size..-1]
      morphemes << create_padding(whitespace)
    else
      raise differece_error
    end
  end

  if text =~ /#{whitespace_regexp}$/
    morphemes << create_padding(text)
  elsif !text.empty?
    raise differece_error
  end

  morphemes
end

#valid? ⇒ Boolean 



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# File 'lib/langue/morphemes.rb', line 5

def valid?
  all? { |morpheme| Morpheme === morpheme }
end