1  #!/usr/bin/env python3
       2  #
       3  # this tests the Expand() API of the xmlTextReader interface
       4  # this extract the Dragon bibliography entries from the XML specification
       5  #
       6  import setup_test
       7  import libxml2
       8  import os
       9  import sys
      10  
      11  # Memory debug specific
      12  libxml2.debugMemory(1)
      13  
      14  expect="""<bibl id="Aho" key="Aho/Ullman">Aho, Alfred V., 
      15  Ravi Sethi, and Jeffrey D. Ullman.
      16  <emph>Compilers:  Principles, Techniques, and Tools</emph>.
      17  Reading:  Addison-Wesley, 1986, rpt. corr. 1988.</bibl>"""
      18  
      19  basedir = os.path.dirname(os.path.realpath(__file__))
      20  f = open(os.path.join(basedir, '../../test/valid/REC-xml-19980210.xml'), 'rb')
      21  input = libxml2.inputBuffer(f)
      22  reader = input.newTextReader("REC")
      23  res=""
      24  while reader.Read() > 0:
      25      while reader.Name() == 'bibl':
      26          node = reader.Expand()            # expand the subtree
      27          if node.xpathEval("@id = 'Aho'"): # use XPath on it
      28              res = res + node.serialize()
      29          if reader.Next() != 1:            # skip the subtree
      30              break;
      31  
      32  if res != expect:
      33      print("Error: didn't get the expected output")
      34      print("got '%s'" % (res))
      35      print("expected '%s'" % (expect))
      36      
      37  
      38  #
      39  # cleanup
      40  #
      41  del input
      42  del reader
      43  
      44  # Memory debug specific
      45  libxml2.cleanupParser()
      46  if libxml2.debugMemory(1) == 0:
      47      print("OK")
      48  else:
      49      print("Memory leak %d bytes" % (libxml2.debugMemory(1)))