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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /doc/src/examples/xmlstreamlint.qdoc | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'doc/src/examples/xmlstreamlint.qdoc')
-rw-r--r-- | doc/src/examples/xmlstreamlint.qdoc | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/doc/src/examples/xmlstreamlint.qdoc b/doc/src/examples/xmlstreamlint.qdoc new file mode 100644 index 0000000..925a7a0 --- /dev/null +++ b/doc/src/examples/xmlstreamlint.qdoc @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example xml/xmlstreamlint + \title XML Stream Lint Example + + The XML Stream Lint example provides a simple command line utility that + accepts a file name as its single argument and writes it to the standard + output file. + + The specified file is parsed using an QXmlStreamReader object and written + to the standard output file using an QXmlStreamWriter object. If the file + does not contain a well-formed XML document or the use of namespaces in + the document is incorrect, a description of the error is printed to + the standard error file and will appear in the console. + + \section1 Basic Operation + + The main function of the example opens the file specified by the user + for input (\c inputFile), and it uses QFile to access the standard output + file. + + Reading XML is handled by an instance of the QXmlStreamReader class, which + operates on the input file object; writing is handled by an instance of + QXmlStreamWriter operating on the output file object: + + \snippet examples/xml/xmlstreamlint/main.cpp 0 + + The work of parsing and rewriting the XML is done in a while loop, and is + driven by input from the reader: + + \snippet examples/xml/xmlstreamlint/main.cpp 1 + + If more input is available, the next token from the input file is read + and parsed. If an error occurred, information is written to the standard + error file via a stream, and the example exits by returning a non-zero + value from the main function. + + \snippet examples/xml/xmlstreamlint/main.cpp 2 + + For valid input, the writer is fed the current token from the reader, + and this is written to the output file that was specified when it was + constructed. + + When there is no more input, the loop terminates, and the example can + exit successfully. +*/ |