Class: DiffLCS::WordSplitArray

Inherits:
Array
  • Object
show all
Defined in:
lib/diff_l_c_s/word_split_array.rb

Constant Summary collapse

SEPARATOR =

Used as a separator

"\031"

Instance Method Summary collapse

Constructor Details

#initialize(text) ⇒ WordSplitArray

Splits the words, and treats whitespace correctly.



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# File 'lib/diff_l_c_s/word_split_array.rb', line 11

def initialize(text)
  old_end = 0
  # splits for html-tags, for any non-word-characters & for SEPARATORs
  treated = text.scan(/<\/?\w+>|[^\w<\/>#{SEPARATOR}]+|#{SEPARATOR}/) do |literal|
    match = $~
    if match.begin(0) > old_end
      self.push(text[old_end...match.begin(0)])
    end
    self.push(literal)
    old_end = match.end(0)
  end
  if old_end < text.size
    self.push(text[old_end...text.size])
  end
end

Instance Method Details

#translate_to_pos(positions) ⇒ Object

Translates word-positions to character-positions.



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# File 'lib/diff_l_c_s/word_split_array.rb', line 31

def translate_to_pos(positions)
  word_p = 0
  temp_array = [0]
  i = 0
  while i < self.size
    word_p += self[i].size
    temp_array.push(word_p)
    i += 1
  end
  return PositionRange::List.new(
      positions.collect {|position| position.new_dup(
          temp_array[position.begin], temp_array[position.end])})
end