/usr/include/grantlee/outputstream.h is in libgrantlee5-dev 5.1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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This file is part of the Grantlee template system.
Copyright (c) 2010 Stephen Kelly <steveire@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either version
2.1 of the Licence, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRANTLEE_OUTPUTSTREAM_H
#define GRANTLEE_OUTPUTSTREAM_H
#include "grantlee_templates_export.h"
#include <QtCore/QSharedPointer>
#include <QtCore/QTextStream>
namespace Grantlee
{
class SafeString;
/// @headerfile outputstream.h grantlee/outputstream.h
/**
@brief The OutputStream class is used to render templates to a QTextStream
A OutputStream instance may be passed to the render method of a Template to
render
the template to a stream.
@code
QFile outputFile("./output");
outputFile.open(QFile::WriteOnly);
QTextStream tstream( &outputFile );
OutputStream os(&tstream);
t->render( &os, &context );
@endcode
The OutputStream is used to escape the content streamed to it. By default, the
escaping is html escaping, converting "&" to "&" for example. If
generating non-html output, the escape method may be overriden to perform a
different escaping, or non at all.
If overriding the escape method, the clone method must also be overriden to
return an OutputStream with the same escaping behaviour.
@code
class NoEscapeStream : public Grantlee::OutputStream
{
public:
// ...
QString escape( const QString &input ) const
{
return input;
}
QSharedPointer<OutputStream> clone( QTextStream *stream ) const
{
QSharedPointer<OutputStream> clonedStream =
QSharedPointer<OutputStream>( new NoEscapeStream( stream ) );
return clonedStream;
}
};
@endcode
@author Stephen Kelly <steveire@gmail.com>
*/
class GRANTLEE_TEMPLATES_EXPORT OutputStream
{
public:
/**
Creates a null OutputStream. Content streamed to this OutputStream is sent
to /dev/null
*/
OutputStream();
/**
Creates an OutputStream which will stream content to @p stream with
appropriate escaping.
*/
explicit OutputStream(QTextStream *stream);
/**
Destructor
*/
virtual ~OutputStream();
/**
Returns an escaped version of @p input. Does not write anything to the
stream.
*/
virtual QString escape(const QString &input) const;
/**
Returns an escaped version of @p input. Does not write anything to the
stream.
*/
QString escape(const SafeString &input) const;
/**
Returns an cloned OutputStream with the same filtering behaviour.
*/
virtual QSharedPointer<OutputStream> clone(QTextStream *stream) const;
/**
Returns @p after escaping it, unless @p input is "safe", in which case, @p
input is returned unmodified.
*/
QString conditionalEscape(const Grantlee::SafeString &input) const;
/**
Writes @p input to the stream after escaping it.
*/
OutputStream &operator<<(const QString &input);
/**
Writes @p input to the stream after escaping it if necessary.
*/
OutputStream &operator<<(const SafeString &input);
/**
Reads the content of @p stream and writes it unmodified to the result
stream.
*/
OutputStream &operator<<(QTextStream *stream);
private:
QTextStream *m_stream;
Q_DISABLE_COPY(OutputStream)
};
}
#endif
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