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#!/usr/bin/python -u
import libxml2
import sys

# Memory debug specific
libxml2.debugMemory(1)

schema="""<?xml version="1.0" encoding="iso-8859-1"?>
<schema xmlns = "http://www.w3.org/2001/XMLSchema">
	<element name = "Customer">
		<complexType>
			<sequence>
				<element name = "FirstName" type = "string" />
				<element name = "MiddleInitial" type = "string" />
				<element name = "LastName" type = "string" />
			</sequence>
			<attribute name = "customerID" type = "integer" />
		</complexType>
	</element>
</schema>"""

instance="""<?xml version="1.0" encoding="iso-8859-1"?>
<Customer customerID = "24332">
	<FirstName>Raymond</FirstName>
	<MiddleInitial>G</MiddleInitial>
	<LastName>Bayliss</LastName>
</Customer>	
"""

ctxt_parser = libxml2.schemaNewMemParserCtxt(schema, len(schema))
ctxt_schema = ctxt_parser.schemaParse()
ctxt_valid  = ctxt_schema.schemaNewValidCtxt()
doc = libxml2.parseDoc(instance)
ret = doc.schemaValidateDoc(ctxt_valid)
if ret != 0:
    print("error doing schema validation")
    sys.exit(1)

doc.freeDoc()
del ctxt_parser
del ctxt_schema
del ctxt_valid
libxml2.schemaCleanupTypes()

# Memory debug specific
libxml2.cleanupParser()
if libxml2.debugMemory(1) == 0:
    print("OK")
else:
    print("Memory leak %d bytes" % (libxml2.debugMemory(1)))
    libxml2.dumpMemory()