Ruby Code Snippets

basic.rb

#Strip HTML tags
  def strip_html(allowed = [])
    str = self.strip || ''
    str.gsub(/<(\/|\s)*[^(#{allowed.join('|') << '|\/'})][^>]*>/,'')
  end

security.rb

#Clean UTF-8 string
#
# -> iconvert(csv, "latin1", "utf8")
  def iconvert(str, encoding_from, encoding_to = "utf8")
    i = Iconv.new encoding_to, encoding_from
    utf_str = ""
    begin
      utf_str << i.iconv(str)
    rescue Exception => e
      utf_str << e.success
      ch, str = e.failed.split(//, 2)
      utf_str << "?"
    end
    return utf_str
  end