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#!/usr/bin/env python3 # # this tests the Expand() API of the xmlTextReader interface # this extract the Dragon bibliography entries from the XML specification # import setup_test import libxml2 import os import sys # Memory debug specific libxml2.debugMemory(1) expect="""<bibl id="Aho" key="Aho/Ullman">Aho, Alfred V., Ravi Sethi, and Jeffrey D. Ullman. <emph>Compilers: Principles, Techniques, and Tools</emph>. Reading: Addison-Wesley, 1986, rpt. corr. 1988.</bibl>""" basedir = os.path.dirname(os.path.realpath(__file__)) f = open(os.path.join(basedir, '../../test/valid/REC-xml-19980210.xml'), 'rb') input = libxml2.inputBuffer(f) reader = input.newTextReader("REC") res="" while reader.Read() > 0: while reader.Name() == 'bibl': node = reader.Expand() # expand the subtree if node.xpathEval("@id = 'Aho'"): # use XPath on it res = res + node.serialize() if reader.Next() != 1: # skip the subtree break; if res != expect: print("Error: didn't get the expected output") print("got '%s'" % (res)) print("expected '%s'" % (expect)) # # cleanup # del input del reader # Memory debug specific libxml2.cleanupParser() if libxml2.debugMemory(1) == 0: print("OK") else: print("Memory leak %d bytes" % (libxml2.debugMemory(1)))