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#!/usr/bin/python -u
#
# this tests the Expand() API of the xmlTextReader interface
# this extract the Dragon bibliography entries from the XML specification
#
import libxml2
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>"""
f = open('../../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)))
libxml2.dumpMemory()