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libmultiscale/src/parser/algebraic_parser.hh
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algebraic_parser.hh
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/**
* @file algebraic_parser.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date Wed Mar 13 16:53:59 2013
*
* @brief The algebraic expression parser for LM config files
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* LibMultiScale is free software: you can redistribute it and/or modify it
* under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* LibMultiScale 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with LibMultiScale. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __LIBMULTISCALE_ALGEBRAIC_PARSER_HH__
#define __LIBMULTISCALE_ALGEBRAIC_PARSER_HH__
/* -------------------------------------------------------------------------- */
#include "lm_common.hh"
#include <map>
/* -------------------------------------------------------------------------- */
__BEGIN_LIBMULTISCALE__
template <typename T> struct AlgebraicParser;
struct AlgebraicExpressionParser {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
AlgebraicExpressionParser();
~AlgebraicExpressionParser();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
//! parse an expression passed as a string
bool parse(const std::string &str, double &result);
//! access the value of a given variable
Real &operator[](const std::string &var_name);
//! erase a variable from the pool of variables
void eraseVariable(const std::string &var_name);
//! test if a variable is existing
bool doesExist(const std::string &var_name);
//! return map of variables
std::map<std::string, double> &getVariables();
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
AlgebraicParser<std::string::const_iterator> *my_parser;
};
__END_LIBMULTISCALE__
#endif /* __LIBMULTISCALE_ALGEBRAIC_PARSER_HH__ */
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