diff options
Diffstat (limited to 'src/xmlpatterns/doc/snippets/code/src_xmlpatterns_api_qxmlquery.cpp')
-rw-r--r-- | src/xmlpatterns/doc/snippets/code/src_xmlpatterns_api_qxmlquery.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/xmlpatterns/doc/snippets/code/src_xmlpatterns_api_qxmlquery.cpp b/src/xmlpatterns/doc/snippets/code/src_xmlpatterns_api_qxmlquery.cpp new file mode 100644 index 0000000..e51582d --- /dev/null +++ b/src/xmlpatterns/doc/snippets/code/src_xmlpatterns_api_qxmlquery.cpp @@ -0,0 +1,198 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//! [0] + QXmlNamePool namePool(query.namePool()); + query.bindVariable(QXmlName(namePool, localName), value); +//! [0] + + +{ +//! [1] + QByteArray myDocument; + QBuffer buffer(&myDocument); // This is a QIODevice. + buffer.open(QIODevice::ReadOnly); + QXmlQuery query; + query.bindVariable("myDocument", &buffer); + query.setQuery("doc($myDocument)"); +//! [1] +} + + +{ + QIODevice *device = 0; +//! [2] + QXmlNamePool namePool(query.namePool()); + query.bindVariable(QXmlName(namePool, localName), device); +//! [2] + +} + +{ + QIODevice *myOutputDevice = 0; +//! [3] + QFile xq("myquery.xq"); + + QXmlQuery query; + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlSerializer serializer(query, myOutputDevice); + query.evaluateTo(&serializer); +//! [3] +} + +{ + QIODevice *myOutputDevice = 0; +//! [4] + QFile xq("myquery.xq"); + QString fileName("the filename"); + QString publisherName("the publisher"); + qlonglong year = 1234; + + QXmlQuery query; + + query.bindVariable("file", QVariant(fileName)); + query.bindVariable("publisher", QVariant(publisherName)); + query.bindVariable("year", QVariant(year)); + + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlSerializer serializer(query, myOutputDevice); + query.evaluateTo(&serializer); +//! [4] +} + +{ +//! [5] + QFile xq("myquery.xq"); + QString fileName("the filename"); + QString publisherName("the publisher"); + qlonglong year = 1234; + + QXmlQuery query; + + query.bindVariable("file", QVariant(fileName)); + query.bindVariable("publisher", QVariant(publisherName)); + query.bindVariable("year", QVariant(year)); + + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlResultItems result; + query.evaluateTo(&result); + QXmlItem item(result.next()); + while (!item.isNull()) { + if (item.isAtomicValue()) { + QVariant v = item.toAtomicValue(); + switch (v.type()) { + case QVariant::LongLong: + // xs:integer + break; + case QVariant::String: + // xs:string + break; + default: + // error + break; + } + } + else if (item.isNode()) { +#ifdef qdoc + QXmlNodeModelIndex i = item.toNodeModelIndex(); + // process node +#endif // qdoc + } + item = result.next(); + } +//! [5] +} + +{ +//! [6] + QFile xq("myquery.xq"); + + QXmlQuery query; + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlResultItems result; + query.evaluateTo(&result); + QXmlItem item(result.next()); + while (!item.isNull()) { + if (item.isAtomicValue()) { + QVariant v = item.toAtomicValue(); + switch (v.type()) { + case QVariant::LongLong: + // xs:integer + break; + case QVariant::String: + // xs:string + break; + default: + if (v.userType() == qMetaTypeId<QXmlName>()) { +#ifdef qdoc + QXmlName n = qvariant_cast<QXmlName>(v); + // process QXmlName n... +#endif // qdoc + } + else { + // error + } + break; + } + } + else if (item.isNode()) { +#ifdef qdoc + QXmlNodeModelIndex i = item.toNodeModelIndex(); + // process node +#endif // qdoc + } + item = result.next(); + } +//! [6] +} + +{ + QIODevice *out = 0; +//! [7] + QXmlQuery query(QXmlQuery::XSLT20); + query.setFocus(QUrl("myInput.xml")); + query.setQuery(QUrl("myStylesheet.xsl")); + query.evaluateTo(out); +//! [7] +} |