libraries/muparser/include/muParser.h

/*

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	/     \|  |  \____ \__  \\_  __ \/  ___// __ \_  __ \
   |  Y Y  \  |  /  |_> > __ \|  | \/\___ \\  ___/|  | \/
   |__|_|  /____/|   __(____  /__|  /____  >\___  >__|
		 \/      |__|       \/           \/     \/
   Copyright (C) 2004 - 2022 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_H
#define MU_PARSER_H

//--- Standard includes ------------------------------------------------------------------------
#include <vector>

//--- Parser includes --------------------------------------------------------------------------
#include "muParserBase.h"
#include "muParserTemplateMagic.h"

/** \file
	\brief Definition of the standard floating point parser.
*/

namespace mu
{
	/** \brief Mathematical expressions parser.

	  Standard implementation of the mathematical expressions parser.
	  Can be used as a reference implementation for subclassing the parser.
	*/
	class API_EXPORT_CXX Parser : public ParserBase
	{
	public:

		Parser();

		void InitCharSets() override;
		void InitFun() override;
		void InitConst() override;
		void InitOprt() override;
		void OnDetectVar(string_type* pExpr, int& nStart, int& nEnd) override;

		value_type Diff(value_type* a_Var, value_type a_fPos, value_type a_fEpsilon = 0) const;

	protected:

		static int IsVal(const char_type* a_szExpr, int* a_iPos, value_type* a_fVal);
	};
} // namespace mu

#endif