Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/twitter-text/extractor.rb

Instance Method Summary collapse

Instance Method Details

#codepoint_length ⇒ Object

Helper function to count the character length by first converting to an array. This is needed because with unicode strings, the return value of length may be incorrect



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# File 'lib/twitter-text/extractor.rb', line 12

def codepoint_length
  if respond_to? :codepoints
    length
  else
    chars.kind_of?(Enumerable) ? chars.to_a.size : chars.size
  end
end

#to_codepoint_a ⇒ Object

Helper function to convert this string into an array of unicode code points.



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# File 'lib/twitter-text/extractor.rb', line 21

def to_codepoint_a
  @to_codepoint_a ||= if chars.kind_of?(Enumerable)
    chars.to_a
  else
    codepoint_array = []
    0.upto(codepoint_length - 1) { |i| codepoint_array << [chars.slice(i)].pack('U') }
    codepoint_array
  end
end