86 lines
5.0 KiB
Plaintext
86 lines
5.0 KiB
Plaintext
/***************************************************************************
|
|
* Copyright (c) 2013 Jürgen Riegel <juergen.riegel@web.de> *
|
|
* *
|
|
* This library is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU Library General Public *
|
|
* License as published by the Free Software Foundation; either *
|
|
* version 2 of the License, or (at your option) any later version. *
|
|
* *
|
|
* This library 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 Library General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU Library General Public *
|
|
* License along with this library; see the file COPYING.LIB. If not, *
|
|
* write to the Free Software Foundation, Inc., 59 Temple Place, *
|
|
* Suite 330, Boston, MA 02111-1307, USA *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
/* Parser for the FreeCAD Units language */
|
|
|
|
/* Represents the many different ways we can access our data */
|
|
%{
|
|
#define YYSTYPE Quantity
|
|
#define yyparse Quantity_yyparse
|
|
#define yyerror Quantity_yyerror
|
|
%}
|
|
|
|
/* Bison declarations. */
|
|
%token UNIT ONE NUM MINUSSIGN
|
|
%token ACOS ASIN ATAN ATAN2 COS EXP ABS MOD LOG LOG10 POW SIN SINH TAN TANH SQRT;
|
|
%left MINUSSIGN '+'
|
|
%left '*' '/'
|
|
%left NEG /* negation--unary minus */
|
|
%right '^' /* exponentiation */
|
|
%left ONE NUM
|
|
|
|
%start input
|
|
|
|
%%
|
|
|
|
input: { QuantResult = Quantity(std::numeric_limits<double>::min()); /* empty input */ }
|
|
| num { QuantResult = $1; }
|
|
| unit { QuantResult = $1; }
|
|
| quantity { QuantResult = $1; }
|
|
| quantity quantity { QuantResult = $1 + $2; }
|
|
| quantity quantity quantity { QuantResult = $1 + $2 + $3; }
|
|
;
|
|
num: NUM { $$ = $1; }
|
|
| ONE { $$ = $1; }
|
|
| num '+' num { $$ = Quantity($1.getValue() + $3.getValue()); }
|
|
| num MINUSSIGN num { $$ = Quantity($1.getValue() - $3.getValue()); }
|
|
| num '*' num { $$ = Quantity($1.getValue() * $3.getValue()); }
|
|
| num '/' num { $$ = Quantity($1.getValue() / $3.getValue()); }
|
|
| MINUSSIGN num %prec NEG { $$ = Quantity(-$2.getValue()); }
|
|
| num '^' num { $$ = Quantity(pow($1.getValue(), $3.getValue())); }
|
|
| '(' num ')' { $$ = $2; }
|
|
| ACOS '(' num ')' { $$ = Quantity(acos($3.getValue())); }
|
|
| ASIN '(' num ')' { $$ = Quantity(asin($3.getValue())); }
|
|
| ATAN '(' num ')' { $$ = Quantity(atan($3.getValue())); }
|
|
| ABS '(' num ')' { $$ = Quantity(fabs($3.getValue())); }
|
|
| EXP '(' num ')' { $$ = Quantity(exp($3.getValue())); }
|
|
| LOG '(' num ')' { $$ = Quantity(log($3.getValue())); }
|
|
| LOG10 '(' num ')' { $$ = Quantity(log10($3.getValue())); }
|
|
| SIN '(' num ')' { $$ = Quantity(sin($3.getValue())); }
|
|
| SINH '(' num ')' { $$ = Quantity(sinh($3.getValue())); }
|
|
| TAN '(' num ')' { $$ = Quantity(tan($3.getValue())); }
|
|
| TANH '(' num ')' { $$ = Quantity(tanh($3.getValue())); }
|
|
| SQRT '(' num ')' { $$ = Quantity(sqrt($3.getValue())); }
|
|
| COS '(' num ')' { $$ = Quantity(cos($3.getValue())); }
|
|
;
|
|
|
|
unit: UNIT { $$ = $1; }
|
|
| ONE '/' unit { $$ = Quantity(1.0)/$3; }
|
|
| unit '*' unit { $$ = $1 * $3; }
|
|
| unit '/' unit { $$ = $1 / $3; }
|
|
| unit '^' num { $$ = $1.pow ($3); }
|
|
| '(' unit ')' { $$ = $2; }
|
|
;
|
|
quantity: num unit { $$ = $1*$2; }
|
|
| num '/' unit { $$ = Quantity($1)/$3; }
|
|
;
|
|
|
|
%%
|