Class: String

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

Instance Method Summary collapse

Instance Method Details

#char_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



7
8
9
10
11
12
13
 
# File 'lib/twitter-text-relative/extractor.rb', line 7

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

#to_char_a ⇒ Object

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



16
17
18
19
20
21
22
23
24
 
# File 'lib/twitter-text-relative/extractor.rb', line 16

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