code: def __from_rfc2426(self,data):
          
          data=from_utf8(data)
          lines=data.split("\n")
          started=0
          current=None
          for l in lines:
              if not l:
                  continue
              if l[-1]=="\r":
                  l=l[:-1]
              if not l:
                  continue
              if l[0] in " \t":
                  if current is None:
                      continue
                  current+=l[1:]
                  continue
              if not started and current and current.upper().strip()=="BEGIN:VCARD":
                  started=1
              elif started and current.upper().strip()=="END:VCARD":
                  current=None
                  break
              elif current and started:
                  self._process_rfc2425_record(current)
              current=l
          if started and current:
              self._process_rfc2425_record(current)
docs: Initialize a VCard object from an RFC2426 string.
  
          :Parameters:
              - `data`: vcard to parse.
          :Types:
              - `data`: `libxml2.xmlNode`, `unicode` or `str`