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PATH: usr / share / doc / libxml2-python-2.9.1

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

#memory debug specific
libxml2.debugMemory(1)

called = ""

def foo(ctx, x):
    global called

#
    # test that access to the XPath evaluation contexts
    #
    pctxt = libxml2.xpathParserContext(_obj=ctx)
    ctxt = pctxt.context()
    called = ctxt.function()
    return x + 1

def bar(ctxt, x):
    return "%d" % (x + 2)

doc = libxml2.parseFile("tst.xml")
ctxt = doc.xpathNewContext()
res = ctxt.xpathEval("//*")
if len(res) != 2:
    print("xpath query: wrong node set size")
    sys.exit(1)
if res[0].name != "doc" or res[1].name != "foo":
    print("xpath query: wrong node set value")
    sys.exit(1)
libxml2.registerXPathFunction(ctxt._o, "foo", None, foo)
libxml2.registerXPathFunction(ctxt._o, "bar", None, bar)
i = 10000
while i > 0:
    res = ctxt.xpathEval("foo(1)")
    if res != 2:
        print("xpath extension failure")
        sys.exit(1)
    i = i - 1
i = 10000
while i > 0:
    res = ctxt.xpathEval("bar(1)")
    if res != "3":
        print("xpath extension failure got %s expecting '3'")
        sys.exit(1)
    i = i - 1
doc.freeDoc()
ctxt.xpathFreeContext()

if called != "foo":
    print("xpath function: failed to access the context")
    print("xpath function: %s" % (called))
    sys.exit(1)

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

[-] schema.py [edit]
[-] build.py [edit]
[-] relaxng.py [edit]
[-] nsdel.py [edit]
[-] readernext.py [edit]
[-] pushSAX.py [edit]
[-] regexp.py [edit]
[-] reader4.py [edit]
[-] outbuf.py [edit]
[+] ..
[-] tstmem.py [edit]
[-] reader5.py [edit]
[-] apibuild.py [edit]
[-] walker.py [edit]
[-] validate.py [edit]
[-] thread2.py [edit]
[-] compareNodes.py [edit]
[-] python.html [edit]
[-] reader6.py [edit]
[-] reader3.py [edit]
[-] libxml2class.txt [edit]
[-] tstLastError.py [edit]
[-] validRNG.py [edit]
[-] reader2.py [edit]
[-] TODO [edit]
[-] cutnpaste.py [edit]
[-] reader7.py [edit]
[-] push.py [edit]
[-] validDTD.py [edit]
[-] readererr.py [edit]
[-] xpath.py [edit]
[-] serialize.py [edit]
[-] index.py [edit]
[-] xpathret.py [edit]
[-] inbuf.py [edit]
[-] xpathleak.py [edit]
[-] ctxterror.py [edit]
[-] attribs.py [edit]
[-] xpathns.py [edit]
[-] reader8.py [edit]
[-] validSchemas.py [edit]
[-] error.py [edit]
[-] tstxpath.py [edit]
[-] resolver.py [edit]
[-] input_callback.py [edit]
[-] sync.py [edit]
[-] tst.py [edit]
[-] xpathext.py [edit]
[-] tstURI.py [edit]
[-] dtdvalid.py [edit]
[-] reader.py [edit]
[-] pushSAXhtml.py [edit]
[-] indexes.py [edit]