vmime/vmime/parameter.hpp
2013-05-12 16:51:40 +02:00

154 lines
3.5 KiB
C++

//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002-2013 Vincent Richard <vincent@vmime.org>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library. Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//
#ifndef VMIME_PARAMETER_HPP_INCLUDED
#define VMIME_PARAMETER_HPP_INCLUDED
#include "vmime/base.hpp"
#include "vmime/component.hpp"
#include "vmime/word.hpp"
namespace vmime
{
class VMIME_EXPORT parameter : public component
{
friend class parameterizedHeaderField;
private:
parameter(const parameter&);
public:
parameter(const string& name);
parameter(const string& name, const word& value);
parameter(const string& name, const string& value);
#ifndef VMIME_BUILDING_DOC
/** A single section of a multi-section parameter,
* as defined in RFC-2231/3. This is used when
* calling parse() on the parameter.
*/
struct valueChunk
{
bool encoded;
string data;
};
#endif // VMIME_BUILDING_DOC
ref <component> clone() const;
void copyFrom(const component& other);
parameter& operator=(const parameter& other);
const std::vector <ref <component> > getChildComponents();
/** Return the name of this parameter.
*
* @return name of this parameter
*/
const string& getName() const;
/** Return the raw value of this parameter.
*
* @return read-only value
*/
const word& getValue() const;
/** Return the value of this object in the specified type.
* For example, the following code:
*
* <pre>
* getParameter("creation-date")->getValueAs <vmime::dateTime>()
* </pre>
*
* is equivalent to:
*
* <pre>
* ref <vmime::word> rawValue = getParameter("creation-date");
*
* vmime::dateTime theDate;
* theDate.parse(rawValue->getBuffer());
* </pre>
*
* @param T type to which convert the value
* @return value
*/
template <typename T>
const T getValueAs() const
{
T ret;
ret.parse(m_value->getBuffer());
return ret;
}
/** Set the value of this parameter.
*
* @param value new value
*/
void setValue(const component& value);
/** Set the raw value of this parameter.
*
* @param value new value
*/
void setValue(const word& value);
protected:
void parseImpl
(const parsingContext& ctx,
const string& buffer,
const string::size_type position,
const string::size_type end,
string::size_type* newPosition = NULL);
void generateImpl
(const generationContext& ctx,
utility::outputStream& os,
const string::size_type curLinePos = 0,
string::size_type* newLinePos = NULL) const;
private:
void parse(const parsingContext& ctx, const std::vector <valueChunk>& chunks);
string m_name;
ref <word> m_value;
};
} // vmime
#endif // VMIME_PARAMETER_HPP_INCLUDED