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/*
_____ __ _____________ _______ ______ ___________
/ \| | \____ \__ \\_ __ \/ ___// __ \_ __ \
| Y Y \ | / |_> > __ \| | \/\___ \\ ___/| | \/
|__|_| /____/| __(____ /__| /____ >\___ >__|
\/ |__| \/ \/ \/
Copyright (C) 2004 - 2020 Ingo Berg
Redistribution and use in source and binary forms, with or without modification, are permitted
provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list of
conditions and the following disclaimer.
* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR
CONTRIBUTORS 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 MU_PARSER_INT_H
#define MU_PARSER_INT_H
#include "muParserBase.h"
#include <vector>
/** \file
\brief Definition of a parser using integer value.
*/
namespace mu
{
/** \brief Mathematical expressions parser.
This version of the parser handles only integer numbers. It disables the built in operators thus it is
slower than muParser. Integer values are stored in the double value_type and converted if needed.
*/
class ParserInt : public ParserBase
{
private:
static int Round(value_type v) { return (int)(v + ((v >= 0) ? 0.5 : -0.5)); };
static value_type Abs(value_type);
static value_type Sign(value_type);
static value_type Ite(value_type, value_type, value_type);
// !! The unary Minus is a MUST, otherwise you can't use negative signs !!
static value_type UnaryMinus(value_type);
// Functions with variable number of arguments
static value_type Sum(const value_type* a_afArg, int a_iArgc); // sum
static value_type Min(const value_type* a_afArg, int a_iArgc); // minimum
static value_type Max(const value_type* a_afArg, int a_iArgc); // maximum
// binary operator callbacks
static value_type Add(value_type v1, value_type v2);
static value_type Sub(value_type v1, value_type v2);
static value_type Mul(value_type v1, value_type v2);
static value_type Div(value_type v1, value_type v2);
static value_type Mod(value_type v1, value_type v2);
static value_type Pow(value_type v1, value_type v2);
static value_type Shr(value_type v1, value_type v2);
static value_type Shl(value_type v1, value_type v2);
static value_type LogAnd(value_type v1, value_type v2);
static value_type LogOr(value_type v1, value_type v2);
static value_type And(value_type v1, value_type v2);
static value_type Or(value_type v1, value_type v2);
static value_type Xor(value_type v1, value_type v2);
static value_type Less(value_type v1, value_type v2);
static value_type Greater(value_type v1, value_type v2);
static value_type LessEq(value_type v1, value_type v2);
static value_type GreaterEq(value_type v1, value_type v2);
static value_type Equal(value_type v1, value_type v2);
static value_type NotEqual(value_type v1, value_type v2);
static value_type Not(value_type v1);
static int IsHexVal(const char_type* a_szExpr, int* a_iPos, value_type* a_iVal);
static int IsBinVal(const char_type* a_szExpr, int* a_iPos, value_type* a_iVal);
static int IsVal(const char_type* a_szExpr, int* a_iPos, value_type* a_iVal);
/** \brief A facet class used to change decimal and thousands separator. */
template<class TChar>
class change_dec_sep : public std::numpunct<TChar>
{
public:
explicit change_dec_sep(char_type cDecSep, char_type cThousandsSep = 0, int nGroup = 3)
:std::numpunct<TChar>()
, m_cDecPoint(cDecSep)
, m_cThousandsSep(cThousandsSep)
, m_nGroup(nGroup)
{}
protected:
virtual char_type do_decimal_point() const
{
return m_cDecPoint;
}
virtual char_type do_thousands_sep() const
{
return m_cThousandsSep;
}
virtual std::string do_grouping() const
{
// fix for issue 4: https://code.google.com/p/muparser/issues/detail?id=4
// courtesy of Jens Bartsch
// original code:
// return std::string(1, (char)m_nGroup);
// new code:
return std::string(1, (char)(m_cThousandsSep > 0 ? m_nGroup : CHAR_MAX));
}
private:
int m_nGroup;
char_type m_cDecPoint;
char_type m_cThousandsSep;
};
public:
ParserInt();
virtual void InitFun();
virtual void InitOprt();
virtual void InitConst();
virtual void InitCharSets();
};
} // namespace mu
#endif
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