- if the transformation returns FALSE, it indicates an error,   so try to check what error it is (with libxml_get_last_error()) and if this   fails, throw a TransformerException indicating transformation failure.   Error messages have been thrown to the XP error handler and are available   in the stacktrace.
- if the transformation returns FALSE, it indicates an error,
  so try to check what error it is (with libxml_get_last_error()) and if this
  fails, throw a TransformerException indicating transformation failure.
  Error messages have been thrown to the XP error handler and are available
  in the stacktrace.

git-svn-id: 526f3b90ad6d9b1dfe840af828070ca3d99521ac@9471 d2cacbed-c0f6-0310-851a-9dad52fc623a

johannes85/core