Module: ZhongwenTools::Unicode

Defined in:
lib/zhongwen_tools/unicode.rb

Class Method Summary collapse

Class Method Details

.ascii?(str) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zhongwen_tools/unicode.rb', line 17

def self.ascii?(str)
  str.chars.to_a.size == str.bytes.to_a.size
end

.from_codepoint(str) ⇒ Object 



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# File 'lib/zhongwen_tools/unicode.rb', line 9

def self.from_codepoint(str)
  results = (str.split(/\\?u/) - ['']).map do |s|
    [s.hex].pack("U")
  end

  results.join
end

.multibyte?(str) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zhongwen_tools/unicode.rb', line 21

def self.multibyte?(str)
  !ascii?(str)
end

.to_codepoint(str) ⇒ Object 



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# File 'lib/zhongwen_tools/unicode.rb', line 5

def self.to_codepoint(str)
  str.chars.map{ |c| "\\u%04x" % c.unpack("U")[0] }.join
end