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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_REPORTDESIGN_INC_CONDITIONALEXPRESSION_HXX
#define INCLUDED_REPORTDESIGN_INC_CONDITIONALEXPRESSION_HXX
#include "dllapi.h"
#include <rtl/ustring.hxx>
#include <map>
#include <memory>
namespace rptui
{
// = ConditionalExpression
class REPORTDESIGN_DLLPUBLIC ConditionalExpression
{
private:
const OUString m_sPattern;
public:
ConditionalExpression( const char* _pAsciiPattern );
/** assembles an expression string from a field data source, and one or two operands
*/
OUString assembleExpression( const OUString& _rFieldDataSource, const OUString& _rLHS, const OUString& _rRHS ) const;
/** matches the given expression string to the expression pattern represented by the object
@param _rExpression
the expression to match
@param _rFieldDataSource
the field data source
@param _out_rLHS
output parameter taking the left hand side operand, if successful
@param _out_rRHS
output parameter taking the right hand side operand, if successful
@return
<TRUE/> if and only if the expression string could be successfully matched to
the pattern.
*/
bool matchExpression( std::u16string_view _rExpression, const std::u16string_view _rFieldDataSource, OUString& _out_rLHS, OUString& _out_rRHS ) const;
};
//= ConditionType
enum ConditionType
{
eFieldValueComparison = 0,
eExpression = 1
};
//= ComparisonOperation
enum ComparisonOperation
{
eBetween = 0,
eNotBetween = 1,
eEqualTo = 2,
eNotEqualTo = 3,
eGreaterThan = 4,
eLessThan = 5,
eGreaterOrEqual = 6,
eLessOrEqual = 7
};
typedef std::shared_ptr< ConditionalExpression > PConditionalExpression;
typedef ::std::map< ComparisonOperation, PConditionalExpression > ConditionalExpressions;
// = ConditionalExpressionFactory
class REPORTDESIGN_DLLPUBLIC ConditionalExpressionFactory
{
public:
/// fills the given map with all ConditionalExpressions which we know
static size_t getKnownConditionalExpressions( ConditionalExpressions& _out_rCondExp );
private:
ConditionalExpressionFactory( const ConditionalExpressionFactory& ) = delete;
ConditionalExpressionFactory& operator=( const ConditionalExpressionFactory& ) = delete;
};
} // namespace rptui
#endif // INCLUDED_REPORTDESIGN_INC_CONDITIONALEXPRESSION_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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