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< h1 > dom-context-item.cpp< / h1 > < p > This example parses a document and sets it as the context item. It then executes an XQuery expression that navigates relative to the context item.< / p >
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< div class = "fragment" > < pre class = "fragment" > < span class = "preprocessor" > #include < iostream> < / span >
< span class = "preprocessor" > #include < < a class = "code" href = "DOM_8hpp.html" > xercesc/dom/DOM.hpp< / a > > < / span >
< span class = "preprocessor" > #include < xercesc/framework/StdOutFormatTarget.hpp> < / span >
< span class = "preprocessor" > #include < < a class = "code" href = "xqilla-dom3_8hpp.html" > xqilla/xqilla-dom3.hpp< / a > > < / span >
XERCES_CPP_NAMESPACE_USE;
< span class = "keywordtype" > int< / span > main(< span class = "keywordtype" > int< / span > argc, < span class = "keywordtype" > char< / span > *argv[]) {
< span class = "comment" > // Initialise Xerces-C and XQilla using XQillaPlatformUtils< / span >
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< a name = "a0" > < / a > < a class = "code" href = "classXQillaPlatformUtils.html#ac769d09556ec43ecb94d1822783ba0b8" title = "Perform XQilla initialization." > XQillaPlatformUtils::initialize< / a > ();
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< span class = "comment" > // Get the XQilla DOMImplementation object< / span >
DOMImplementation *xqillaImplementation =
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DOMImplementationRegistry::getDOMImplementation(X(< span class = "stringliteral" > " XPath2 3.0" < / span > ));
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< span class = "keywordflow" > try< / span > {
< span class = "comment" > // Create a DOMLSParser object< / span >
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< a name = "_a1" > < / a > < a class = "code" href = "classAutoRelease.html" > AutoRelease< DOMLSParser> < / a > parser(xqillaImplementation-> createLSParser(DOMImplementationLS::MODE_SYNCHRONOUS, 0));
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parser-> getDomConfig()-> setParameter(XMLUni::fgDOMNamespaces, < span class = "keyword" > true< / span > );
parser-> getDomConfig()-> setParameter(XMLUni::fgXercesSchema, < span class = "keyword" > true< / span > );
parser-> getDomConfig()-> setParameter(XMLUni::fgDOMValidateIfSchema, < span class = "keyword" > true< / span > );
< span class = "comment" > // Parse a DOMDocument< / span >
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DOMDocument *document = parser-> parseURI(< span class = "stringliteral" > " foo.xml" < / span > );
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< span class = "keywordflow" > if< / span > (document == 0) {
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std::cerr < < < span class = "stringliteral" > " Document not found." < / span > < < std::endl;
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< span class = "keywordflow" > return< / span > 1;
}
< span class = "comment" > // Parse an XPath 2 expression< / span >
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< a class = "code" href = "classAutoRelease.html" > AutoRelease< DOMXPathExpression> < / a > expression(document-> createExpression(X(< span class = "stringliteral" > " foo/bar/@baz" < / span > ), 0));
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< span class = "comment" > // Execute the query< / span >
< a class = "code" href = "classAutoRelease.html" > AutoRelease< DOMXPathResult> < / a > result(expression-> evaluate(document, DOMXPathResult::ITERATOR_RESULT_TYPE, 0));
< span class = "comment" > // Create a DOMLSSerializer to output the nodes< / span >
< a class = "code" href = "classAutoRelease.html" > AutoRelease< DOMLSSerializer> < / a > serializer(xqillaImplementation-> createLSSerializer());
< a class = "code" href = "classAutoRelease.html" > AutoRelease< DOMLSOutput> < / a > output(xqillaImplementation-> createLSOutput());
StdOutFormatTarget target;
output-> setByteStream(& target);
< span class = "comment" > // Iterate over the results, printing them< / span >
< span class = "keywordflow" > while< / span > (result-> iterateNext()) {
serializer-> write(result-> getNodeValue(), output);
std::cout < < std::endl;
}
}
< span class = "keywordflow" > catch< / span > (XQillaException & e) {
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std::cerr < < < span class = "stringliteral" > " XQillaException: " < / span > < < UTF8(e.getString()) < < std::endl;
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< span class = "keywordflow" > return< / span > 1;
}
< span class = "comment" > // Terminate Xerces-C and XQilla using XQillaPlatformUtils< / span >
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< a name = "a2" > < / a > < a class = "code" href = "classXQillaPlatformUtils.html#a0bd04a35d4cb26894497c6ff4d8e2105" title = "Perform XQilla termination." > XQillaPlatformUtils::terminate< / a > ();
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< span class = "keywordflow" > return< / span > 0;
}
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< hr size = "1" / > < address style = "text-align: right;" > < small > Generated on 8 Jul 2015 for XQilla DOM Level 3 API by
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< img class = "footer" src = "doxygen.png" alt = "doxygen" / > < / a > 1.6.1 < / small > < / address >
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