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