from lxml.includes cimport tree from lxml.includes.tree cimport xmlDoc, xmlDtd cdef extern from "libxml/valid.h" nogil: ctypedef void (*xmlValidityErrorFunc)(void * ctx, const char * msg, ...) ctypedef void (*xmlValidityWarningFunc)(void * ctx, const char * msg, ...) ctypedef struct xmlValidCtxt: void *userData xmlValidityErrorFunc error xmlValidityWarningFunc warning cdef xmlValidCtxt* xmlNewValidCtxt() cdef void xmlFreeValidCtxt(xmlValidCtxt* cur) cdef int xmlValidateDtd(xmlValidCtxt* ctxt, xmlDoc* doc, xmlDtd* dtd) cdef tree.xmlElement* xmlGetDtdElementDesc( xmlDtd* dtd, tree.const_xmlChar* name)