# File lib/spreadsheet/excel/writer/biff8.rb, line 16 def compress_unicode_string data compressed = '' expect_null = false data.each_byte do |byte| if expect_null if byte != 0 return [data, 1] # 1 => Data consists of wide Chars end expect_null = false else compressed << byte expect_null = true end end [compressed, 0] # 0 => Data consists of compressed Chars end