Gestionnaire de fichiers - Editer - /usr/share/doc/libxml2-python-2.9.1/tstxpath.py
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#!/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()
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