kdelibs/khtml/xpath/functions.h
2014-11-13 01:04:59 +02:00

81 lines
2.4 KiB
C++

/*
* functions.h - Copyright 2005 Frerich Raabe <raabe@kde.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FUNCTIONS_H
#define FUNCTIONS_H
#include "expression.h"
#include <QHash>
#include <QList>
#include "dom/dom_string.h"
#include "xml/dom_stringimpl.h"
namespace khtml {
namespace XPath {
class Function : public Expression
{
public:
void setArguments( const QList<Expression *> &args );
void setName( const DOM::DOMString &name );
virtual QString dump() const;
protected:
Expression *arg( int pos );
const Expression *arg( int pos ) const;
unsigned int argCount() const;
DOM::DOMString name() const;
private:
DOM::DOMString m_name;
};
class FunctionLibrary
{
friend struct FunctionMapping;
public:
static FunctionLibrary &self();
Function *getFunction( const DOM::DOMString& name,
const QList<Expression *> &args = QList<Expression *>() ) const;
private:
struct FunctionRec;
FunctionLibrary();
FunctionLibrary( const FunctionLibrary &rhs );
FunctionLibrary &operator=( const FunctionLibrary &rhs );
QHash<DOM::DOMString, FunctionRec> m_functionDict;
};
} // namespace XPath
} // namespace khtml
#endif // FUNCTIONS_H