102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
// -*- C++ -*-
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/*
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* Copyright © 2006-2011 Ondra Kamenik
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* Copyright © 2019 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dynare. If not, see <https://www.gnu.org/licenses/>.
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*/
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%code requires
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{
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#include "location.hh"
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#define FMLA_LTYPE ogp::location_type
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}
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%code
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{
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#include "formula_parser.hh"
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#include <string>
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void fmla_error(std::string);
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int fmla_lex();
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extern ogp::FormulaParser* fparser;
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}
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%union
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{
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char* string;
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double dvalue;
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int integer;
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}
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%token EQUAL_SIGN
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%left YPLUS YMINUS
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%left YTIMES YDIVIDE
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%precedence YUMINUS YUPLUS
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%right YPOWER
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%token YEXP YLOG YSIN YCOS YTAN YSQRT YERF YERFC YDIFF
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%token <string> DNUMBER NAME
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%type <integer> expression
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%define api.prefix {fmla_}
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%locations
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%defines
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%define parse.error verbose
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%%
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root : equation_list
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| expression
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{fparser->add_formula($1);}
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;
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equation_list : equation_list equation | equation ;
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equation : expression EQUAL_SIGN expression ';'
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{fparser->add_formula(fparser->add_binary(ogp::code_t::MINUS,$1,$3));}
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| expression ';'
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{fparser->add_formula($1);}
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;
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expression : '(' expression ')' { $$ = $2;}
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| expression YPLUS expression {$$=fparser->add_binary(ogp::code_t::PLUS,$1,$3);}
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| expression YMINUS expression {$$=fparser->add_binary(ogp::code_t::MINUS,$1,$3);}
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| expression YTIMES expression {$$=fparser->add_binary(ogp::code_t::TIMES,$1,$3);}
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| expression YDIVIDE expression {$$=fparser->add_binary(ogp::code_t::DIVIDE,$1,$3);}
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| expression YPOWER expression {$$=fparser->add_binary(ogp::code_t::POWER,$1,$3);}
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| YMINUS expression %prec YUMINUS {$$=fparser->add_unary(ogp::code_t::UMINUS,$2);}
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| YPLUS expression %prec YUPLUS {$$ = $2;}
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| YSIN '(' expression ')' {$$=fparser->add_unary(ogp::code_t::SIN,$3);}
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| YCOS '(' expression ')' {$$=fparser->add_unary(ogp::code_t::COS,$3);}
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| YTAN '(' expression ')' {$$=fparser->add_unary(ogp::code_t::TAN,$3);}
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| YEXP '(' expression ')' {$$=fparser->add_unary(ogp::code_t::EXP,$3);}
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| YLOG '(' expression ')' {$$=fparser->add_unary(ogp::code_t::LOG,$3);}
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| YSQRT '(' expression ')' {$$=fparser->add_unary(ogp::code_t::SQRT,$3);}
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| YERF '(' expression ')' {$$=fparser->add_unary(ogp::code_t::ERF,$3);}
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| YERFC '(' expression ')' {$$=fparser->add_unary(ogp::code_t::ERFC,$3);}
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| YDIFF '(' expression ',' NAME ')' {$$=fparser->add_derivative($3, fparser->add_nulary($5));}
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| NAME {$$=fparser->add_nulary($1);}
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| DNUMBER {$$=fparser->add_nulary($1);}
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;
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%%
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void
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fmla_error(std::string s)
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{
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fparser->error(std::move(s));
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}
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