Fixed bug in DATE_AND_TIME_TO_TIME_OF_DAY and DATE_AND_TIME_TO_DATE when date and time is before 1970-01-01-00:00:00
/*
* matiec - a compiler for the programming languages defined in IEC 61131-3
*
* Copyright (C) 2003-2011 Mario de Sousa (msousa@fe.up.pt)
* Copyright (C) 2007-2011 Laurent Bessard and Edouard Tisserant
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
* This code is made available on the understanding that it will not be
* used in safety-critical situations without a full and competent review.
*/
/*
* An IEC 61131-3 compiler.
*
* Based on the
* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
*
*/
/* Decomposes a variable instance name into its constituents,
* example:
* window.points[1].coordinate.x
*
* will succesfully return
* - window
* - points
* - coordinate
* - x
* on succesive calls to decompose_var_instance_name_c::next_part()
*/
#include "../absyntax/visitor.hh"
class decompose_var_instance_name_c: null_visitor_c {
public:
/***********************************/
/* B 1.2 - Operators */
/***********************************/
static identifier_c LD_operator_name;
static identifier_c S_operator_name;
static identifier_c R_operator_name;
static identifier_c S1_operator_name;
static identifier_c R1_operator_name;
static identifier_c CLK_operator_name;
static identifier_c CU_operator_name;
static identifier_c CD_operator_name;
static identifier_c PV_operator_name;
static identifier_c IN_operator_name;
static identifier_c PT_operator_name;
private:
symbol_c *variable_name;
symbol_c *next_variable_name;
symbol_c *current_recursive_variable_name;
symbol_c *previously_returned_variable_name;
public:
decompose_var_instance_name_c(symbol_c *variable_instance_name);
symbol_c *next_part(bool increment = true);
private:
/*************************/
/* B.1 - Common elements */
/*************************/
/*******************************************/
/* B 1.1 - Letters, digits and identifiers */
/*******************************************/
void *visit(identifier_c *symbol);
/*********************/
/* B 1.4 - Variables */
/*********************/
void *visit(symbolic_variable_c *symbol);
/********************************************/
/* B.1.4.1 Directly Represented Variables */
/********************************************/
void *visit(direct_variable_c *symbol);
/*************************************/
/* B.1.4.2 Multi-element Variables */
/*************************************/
/* subscripted_variable '[' subscript_list ']' */
// SYM_REF2(array_variable_c, subscripted_variable, subscript_list)
void *visit(array_variable_c *symbol);
/* record_variable '.' field_selector */
/* WARNING: input and/or output variables of function blocks
* may be accessed as fields of a tructured variable!
* Code handling a structured_variable_c must take
* this into account!
*/
//SYM_REF2(structured_variable_c, record_variable, field_selector)
void *visit(structured_variable_c *symbol);
/********************************/
/* B 2.2 - Operators */
/********************************/
void *visit(LD_operator_c *symbol);
void *visit(S_operator_c *symbol);
void *visit(R_operator_c *symbol);
void *visit(S1_operator_c *symbol);
void *visit(R1_operator_c *symbol);
void *visit(CLK_operator_c *symbol);
void *visit(CU_operator_c *symbol);
void *visit(CD_operator_c *symbol);
void *visit(PV_operator_c *symbol);
void *visit(IN_operator_c *symbol);
void *visit(PT_operator_c *symbol);
}; // decompose_var_instance_name_c