73 lines
2.6 KiB
Plaintext
73 lines
2.6 KiB
Plaintext
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:FDL$
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** GNU Free Documentation License
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** Alternatively, this file may be used under the terms of the GNU Free
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** Documentation License version 1.3 as published by the Free Software
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** Foundation and appearing in the file included in the packaging of
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** this file.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms
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** and conditions contained in a signed written agreement between you
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** and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/*!
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\example xml/xmlstreamlint
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\title XML Stream Lint Example
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The XML Stream Lint example provides a simple command line utility that
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accepts a file name as its single argument and writes it to the standard
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output file.
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The specified file is parsed using an QXmlStreamReader object and written
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to the standard output file using an QXmlStreamWriter object. If the file
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does not contain a well-formed XML document or the use of namespaces in
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the document is incorrect, a description of the error is printed to
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the standard error file and will appear in the console.
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\section1 Basic Operation
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The main function of the example opens the file specified by the user
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for input (\c inputFile), and it uses QFile to access the standard output
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file.
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Reading XML is handled by an instance of the QXmlStreamReader class, which
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operates on the input file object; writing is handled by an instance of
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QXmlStreamWriter operating on the output file object:
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\snippet examples/xml/xmlstreamlint/main.cpp 0
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The work of parsing and rewriting the XML is done in a while loop, and is
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driven by input from the reader:
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\snippet examples/xml/xmlstreamlint/main.cpp 1
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If more input is available, the next token from the input file is read
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and parsed. If an error occurred, information is written to the standard
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error file via a stream, and the example exits by returning a non-zero
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value from the main function.
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\snippet examples/xml/xmlstreamlint/main.cpp 2
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For valid input, the writer is fed the current token from the reader,
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and this is written to the output file that was specified when it was
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constructed.
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When there is no more input, the loop terminates, and the example can
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exit successfully.
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*/
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