Method: RTF::TextNode#to_rtf

Defined in:
lib/rtf/node.rb

#to_rtf ⇒ Object

This method generates the RTF equivalent for a TextNode object. This method escapes any special sequences that appear in the text.



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# File 'lib/rtf/node.rb', line 120

def to_rtf
  rtf=(@text == nil ? '' : @text.gsub("{", "\\{").gsub("}", "\\}").gsub("\\", "\\\\"))
  # This is from lfarcy / rtf-extensions
  # I don't see the point of coding different 128<n<256 range

  #f1=lambda { |n| n < 128 ? n.chr : n < 256 ? "\\'#{n.to_s(16)}" : "\\u#{n}\\'3f" }
  # Encode as Unicode.

  f=lambda { |n| n < 128 ? n.chr : "\\u#{n}\\'3f" }
  # Ruby 1.9 is safe, cause detect original encoding
  # and convert text to utf-16 first
  if RUBY_VERSION>"1.9.0"
    return rtf.encode("UTF-16LE", :undef=>:replace).each_codepoint.map(&f).join('')
  else
    # You SHOULD use UTF-8 as input, ok?
    return rtf.unpack('U*').map(&f).join('')
  end
end