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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
/*!
\example xmlstreamlint
\title XML Stream Lint Example
\ingroup xml-examples
\brief A commandline tool reading from an input file and writing to
the standard output file.
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 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 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 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.
*/
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