stage1_2/iec_flex.ll
author mjsousa
Sat, 15 Feb 2014 23:58:16 +0000
changeset 866 c8c48ab075e0
parent 793 268bf4ca5fa1
child 867 a435684a5223
permissions -rw-r--r--
Add support for nested comments
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/*
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 *  matiec - a compiler for the programming languages defined in IEC 61131-3
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 *
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 *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
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 *
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 *  This program 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 thest_whitespaceLicense, or
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 *  (at your option) any later version.
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 *
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 *  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
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 *
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 *
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 * This code is made available on the understanding that it will not be
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 * used in safety-critical situations without a full and competent review.
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 */
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/*
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 * An IEC 61131-3 compiler.
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 *
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 * Based on the
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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
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 *
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 */
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/*
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 * Stage 1
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 * =======
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 *
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 * This file contains the lexical tokens definitions, from which
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 * the flex utility will generate a lexical parser function.
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 */
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/*****************************/
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/* Lexical Parser Options... */
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/*****************************/
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/* The lexical analyser will never work in interactive mode,
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 * i.e., it will only process programs saved to files, and never
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 * programs being written inter-actively by the user.
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 * This option saves the resulting parser from calling the
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 * isatty() function, that seems to be generating some compile
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 * errors under some (older?) versions of flex.
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 */
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%option never-interactive
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/* Have the lexical analyser use a 'char *yytext' instead of an
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 * array of char 'char yytext[??]' to store the lexical token.
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 */
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%pointer
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/* Have the lexical analyser ignore the case of letters.
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 * This will occur for all the tokens and keywords, but
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 * the resulting text handed up to the syntax parser
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 * will not be changed, and keep the original case
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 * of the letters in the input file.
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 */
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%option case-insensitive
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/* Have the generated lexical analyser keep track of the
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 * line number it is currently analysing.
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 * This is used to pass up to the syntax parser
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 * the number of the line on which the current
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 * token was found. It will enable the syntax parser
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 * to generate more informatve error messages...
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 */
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%option yylineno
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/* required for the use of the yy_pop_state() and
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 * yy_push_state() functions
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 */
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%option stack
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/* The '%option stack' also requests the inclusion of 
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 * the yy_top_state(), however this function is not
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 * currently being used. This means that the compiler
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 * is complaining about the existance of this function.
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 * The following option removes the yy_top_state()
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 * function from the resulting c code, so the compiler 
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 * no longer complains.
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 */
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%option noyy_top_state
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/* We will be using unput() in our flex code, so we cannot set the following option!... */
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/*
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%option nounput
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*/
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/**************************************************/
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/* External Variable and Function declarations... */
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/**************************************************/
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%{
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/* Define TEST_MAIN to include a main() function.
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 * Useful for testing the parser generated by flex.
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 */
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/*
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#define TEST_MAIN
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*/
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/* If lexical parser is compiled by itself, we need to define the following
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 * constant to some string. Under normal circumstances LIBDIRECTORY is set
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 * in the syntax parser header file...
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 */
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#ifdef TEST_MAIN
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#define DEFAULT_LIBDIR "just_testing"
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#endif
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/* Required for strdup() */
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#include <string.h>
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/* Required only for the declaration of abstract syntax classes
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 * (class symbol_c; class token_c; class list_c;)
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 * These will not be used in flex, but the token type union defined
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 * in iec_bison.h contains pointers to these classes, so we must include
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 * it here.
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 */
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#include "../absyntax/absyntax.hh"
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/* iec_bison.h is generated by bison.
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 * Contains the definition of the token constants, and the
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 * token value type YYSTYPE (in our case, a 'const char *')
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 */
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#include "iec_bison.h"
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#include "stage1_2_priv.hh"
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/* Variable defined by the bison parser,
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 * where the value of the tokens will be stored
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 */
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extern YYSTYPE yylval;
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/* The name of the file currently being parsed...
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 * Note that flex accesses and updates this global variable
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 * apropriately whenever it comes across an (*#include <filename> *) directive...
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 */
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const char *current_filename = NULL;
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/* We will not be using unput() in our flex code... */
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/* NOTE: it seems that this #define is no longer needed, It has been 
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 * replaced by %option nounput.
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 * Should we simply delete it?
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 * For now leave it in, in case someone is using an old version of flex.
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 * In any case, the most harm that can result in a warning message
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 * when compiling iec.flex.c:
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 * warning: ‘void yyunput(int, char*)’ defined but not used
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 */
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#define YY_NO_UNPUT
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/* Variable defined by the bison parser.
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 * It must be initialised with the location
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 * of the token being parsed.
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 * This is only needed if we want to keep
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 * track of the locations, in order to give
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 * more meaningful error messages!
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 */
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/*
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 *extern YYLTYPE yylloc;
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b*/
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#define YY_INPUT(buf,result,max_size)  {\
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    result = GetNextChar(buf, max_size);\
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    if (  result <= 0  )\
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      result = YY_NULL;\
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    }
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/* A counter to track the order by which each token is processed.
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 * NOTE: This counter is not exactly linear (i.e., it does not get incremented by 1 for each token).
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 *       i.e.. it may get incremented by more than one between two consecutive tokens.
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 *       This is due to the fact that the counter gets incremented every 'user action' in flex,
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 *       however not every user action will result in a token being passed to bison.
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 *       Nevertheless this is still OK, as we are only interested in the relative
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 *       ordering of tokens...
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 */
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static long int current_order = 0;
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/* Macro that is executed for every action.
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 * We use it to pass the location of the token
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 * back to the bison parser...
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 */
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#define YY_USER_ACTION {\
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	yylloc.first_line = current_tracking->lineNumber;			\
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	yylloc.first_column = current_tracking->currentTokenStart;		\
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	yylloc.first_file = current_filename;					\
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	yylloc.first_order = current_order;					\
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	yylloc.last_line = current_tracking->lineNumber;			\
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	yylloc.last_column = current_tracking->currentChar - 1;			\
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	yylloc.last_file = current_filename;					\
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	yylloc.last_order = current_order;					\
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	current_tracking->currentTokenStart = current_tracking->currentChar;	\
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	current_order++;							\
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	}
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/* Since this lexical parser we defined only works in ASCII based
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 * systems, we might as well make sure it is being compiled on
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 * one...
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 * Lets check a few random characters...
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 */
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#if (('a' != 0x61) || ('A' != 0x41) || ('z' != 0x7A) || ('Z' != 0x5A) || \
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     ('0' != 0x30) || ('9' != 0x39) || ('(' != 0x28) || ('[' != 0x5B))
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#error This lexical analyser is not portable to a non ASCII based system.
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#endif
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/* Function only called from within flex, but defined
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 * in iec.y!
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 * We declare it here...
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 *
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 * Search for a symbol in either of the two symbol tables
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 * and return the token id of the first symbol found.
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 * Searches first in the variables, and only if not found
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 * does it continue searching in the library elements
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 */
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//token_id_t get_identifier_token(const char *identifier_str);
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int get_identifier_token(const char *identifier_str);
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%}
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/***************************************************/
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/* Forward Declaration of functions defined later. */
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/***************************************************/
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%{
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/* return all the text in the current token back to the input stream. */
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void unput_text(unsigned int n);
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/* return all the text in the current token back to the input stream, 
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 * but first return to the stream an additional character to mark the end of the token. 
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 */
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void unput_and_mark(const char c);
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634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
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void include_file(const char *include_filename);
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int GetNextChar(char *b, int maxBuffer);
0
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%}
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/****************************/
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/* Lexical Parser States... */
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/****************************/
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/* NOTE: Our psrser can parse st or il code, intermixed
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 *       within the same file.
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 *       With IL we come across the issue of the EOL (end of line) token.
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 *       ST, and the declaration parts of IL do not use this token!
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 *       If the lexical analyser were to issue this token during ST
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   263
 *       language parsing, or during the declaration of data types,
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   264
 *       function headers, etc. in IL, the syntax parser would crash.
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   265
 *
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   266
 *       We can solve this issue using one of three methods:
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   267
 *        (1) Augment all the syntax that does not accept the EOL
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   268
 *            token to simply ignore it. This makes the syntax
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   269
 *            definition (in iec.y) very cluttered!
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   270
 *        (2) Let the lexical parser figure out which language
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   271
 *            it is parsing, and decide whether or not to issue
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   272
 *            the EOL token. This requires the lexical parser
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   273
 *            to have knowledge of the syntax!, making for a poor
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   274
 *            overall organisation of the code. It would also make it
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   275
 *            very difficult to understand the lexical parser as it
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   276
 *            would use several states, and a state machine to transition
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   277
 *            between the states. The state transitions would be
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   278
 *            intermingled with the lexical parser defintion!
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   279
 *        (3) Use a mixture of (1) and (2). The lexical analyser
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   280
 *            merely distinguishes between function headers and function
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   281
 *            bodies, but no longer makes a distinction between il and
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   282
 *            st language bodies. When parsing a body, it will return
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   283
 *            the EOL token. In other states '\n' will be ignored as
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   284
 *            whitespace.
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   285
 *            The ST language syntax has been augmented in the syntax
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   286
 *            parser configuration to ignore any EOL tokens that it may
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   287
 *            come across!
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   288
 *            This option has both drawbacks of option (1) and (2), but
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   289
 *            much less intensely.
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   290
 *            The syntax that gets cluttered is limited to the ST statements
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   291
 *            (which is rather limited, compared to the function headers and
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   292
 *            data type declarations, etc...), while the state machine in
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   293
 *            the lexical parser becomes very simple. All state transitions
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   294
 *            can be handled within the lexical parser by itself, and can be
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   295
 *            easily identified. Thus knowledge of the syntax required by
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   296
 *            the lexical parser is very limited!
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   297
 *
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   298
 * Amazingly enough, I (Mario) got to implement option (3)
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   299
 * at first, requiring two basic states, decl and body.
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   300
 * The lexical parser will enter the body state when
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   301
 * it is parsing the body of a function/program/function block. The
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   302
 * state transition is done when we find a VAR_END that is not followed
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   303
 * by a VAR! This is the syntax knowledge that gets included in the
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   304
 * lexical analyser with this option!
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   305
 * Unfortunately, getting the st syntax parser to ignore EOL anywhere
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   306
 * where they might appear leads to conflicts. This is due to the fact
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   307
 * that the syntax parser uses the single look-ahead token to remove
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   308
 * possible conflicts. When we insert a possible EOL, the single
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   309
 * look ahead token becomes the EOL, which means the potential conflicts
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   310
 * could no longer be resolved.
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   311
 * Removing these conflicts would make the st syntax parser very convoluted,
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   312
 * and adding the extraneous EOL would make it very cluttered.
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   313
 * This option was therefore dropped in favour of another!
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   314
 *
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   315
 * I ended up implementing (2). Unfortunately the lexical analyser can
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   316
 * not easily distinguish between il and st code, since function
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   317
 * calls in il are very similar to function block calls in st.
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   318
 * We therefore use an extra 'body' state. When the lexical parser
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   319
 * finds that last END_VAR, it enters the body state. This state
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   320
 * must figure out what language is being parsed from the first few
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   321
 * tokens, and switch to the correct state (st, il or sfc) according to the
0
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   322
 * language. This means that we insert quite a bit of knowledge of the
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   323
 * syntax of the languages into the lexical parser. This is ugly, but it
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   324
 * works, and at least it is possible to keep all the state changes together
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   325
 * to make it easier to remove them later on if need be.
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diff changeset
   326
 * Once the language being parsed has been identified, 
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diff changeset
   327
 * the body state returns any matched text back to the buffer with unput(),
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diff changeset
   328
 * to be later matched correctly by the apropriate language parser (st, il or sfc).
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diff changeset
   329
 *
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diff changeset
   330
 * Aditionally, in sfc state it may further recursively enter the body state
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mario
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diff changeset
   331
 * once again. This is because an sfc body may contain ACTIONS, which are then
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diff changeset
   332
 * written in one of the three languages (ST, IL or SFC), so once again we need
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diff changeset
   333
 * to figure out which language the ACTION in the SFC was written in. We already
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mario
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diff changeset
   334
 * ahve all that done in the body state, so we recursively transition to the body 
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mario
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diff changeset
   335
 * state once again.
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diff changeset
   336
 * Note that in this case, when coming out of the st/il state (whichever language
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mario
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diff changeset
   337
 * the action was written in) the sfc state will become active again. This is done by
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mario
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diff changeset
   338
 * pushing and poping the previously active state!
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mario
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diff changeset
   339
 *
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mario
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diff changeset
   340
 * The sfc_qualifier_state is required because when parsing actions within an
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mario
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diff changeset
   341
 * sfc, we will be expecting action qualifiers (N, P, R, S, DS, SD, ...). In order
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mario
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diff changeset
   342
 * to bison to work correctly, these qualifiers must be returned as tokens. However,
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diff changeset
   343
 * these tokens are not reserved keywords, which means it should be possible to
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mario
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diff changeset
   344
 * define variables/functions/FBs with any of these names (including 
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mario
parents: 58
diff changeset
   345
 * S and R which are special because they are also IL operators). So, when we are not
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mario
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diff changeset
   346
 * expecting any action qualifiers, flex does not return these tokens, and is free
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mario
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diff changeset
   347
 * to interpret them as previously defined variables/functions/... as the case may be.
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mario
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diff changeset
   348
 *
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   349
 * The time_literal_state is required because TIME# literals are decomposed into 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   350
 * portions, and wewant to send these portions one by one to bison. Each poertion will 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   351
 * represent the value in days/hours/minutes/seconds/ms.
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   352
 * Unfortunately, some of these portions may also be lexically analysed as an identifier. So,
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   353
 * we need to disable lexical identification of identifiers while parsing TIME# literals!
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   354
 * e.g.:  TIME#55d_4h_56m
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   355
 *       We would like to return to bison the tokens 'TIME' '#' '55d' '_' '4h' '_' '56m'
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   356
 *       Unfortunately, flex will join '_' and '4h' to create a legal {identifier} '_4h',
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   357
 *       and return that identifier instead! So, we added this state!
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   358
 *
866
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mjsousa
parents: 793
diff changeset
   359
 * There is a main state machine (
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diff changeset
   360
 *    +------> INITIAL <-------> config
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parents: 793
diff changeset
   361
 *    |           \
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parents: 793
diff changeset
   362
 *    |           V
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mjsousa
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diff changeset
   363
 *    |     header_state
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parents: 793
diff changeset
   364
 *    |           |
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mjsousa
parents: 793
diff changeset
   365
 *    |           V
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diff changeset
   366
 *    |  vardecl_list_state <------> var_decl
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parents: 793
diff changeset
   367
 *    |           | 
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parents: 793
diff changeset
   368
 *    |           V
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parents: 793
diff changeset
   369
 *    +----------body, 
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diff changeset
   370
 *                ^
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diff changeset
   371
 *                | 
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mjsousa
parents: 793
diff changeset
   372
 *    -----------------------
c8c48ab075e0 Add support for nested comments
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diff changeset
   373
 *    |           |         |
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diff changeset
   374
 *    v           v         v
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diff changeset
   375
 *   st          il       sfc
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diff changeset
   376
 * 
0
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etisserant
parents:
diff changeset
   377
 * Possible state changes are:
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   378
 *   INITIAL -> goto(config_state)
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mario
parents: 58
diff changeset
   379
 *                (when a CONFIGURATION is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   380
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
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diff changeset
   381
 *   INITIAL -> goto(header_state)
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parents: 793
diff changeset
   382
 *               (when a FUNCTION, FUNCTION_BLOCK, or PROGRAM is found)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   383
 *   header_state -> goto(vardecl_list_state)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   384
 *               (When the first VAR token is found, i.e. at begining of first VAR .. END_VAR declaration)
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mjsousa
parents: 793
diff changeset
   385
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   386
 *  vardecl_list_state -> push current state (vardecl_list_state), and goto(vardecl_state) 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   387
 *                (when a VAR token is found)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   388
 *   vardecl_state -> pop() to (vardecl_list_state) 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   389
 *                (when a END_VAR token is found)
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mjsousa
parents: 793
diff changeset
   390
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   391
 *   vardecl_list_state -> goto(body_state) 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   392
 *                (when the last END_VAR is found!)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   393
 *
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   394
 *   body_state    -> push current state(body_state); goto(sfc_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   395
 *                     (when it figures out it is parsing sfc language)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   396
 *   body_state    -> push current state(body_state); goto(st_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   397
 *                     (when it figures out it is parsing st language)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   398
 *   body_state    -> push current state(body_state); goto(il_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   399
 *                     (when it figures out it is parsing il language)
866
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mjsousa
parents: 793
diff changeset
   400
 *   st_state      -> pop() to body_sate
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   401
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, END_PROGRAM,
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   402
 *                      END_ACTION or END_TRANSITION is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   403
 *   il_state      -> pop() to body_sate
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   404
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, END_PROGRAM,
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   405
 *                      END_ACTION or END_TRANSITION is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   406
 *   sfc_state     -> pop() to body_sate
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   407
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, or END_PROGRAM is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   408
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   409
 *   body_sate -> goto(INITIAL)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   410
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, or END_PROGRAM is found)
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   411
 *   config_state  -> goto(INITIAL)
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   412
 *                     (when a END_CONFIGURATION is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   413
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   414
 *  
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   415
 *   sfc_state     -> push current state(sfc_state); goto(body_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   416
 *                     (when parsing an action. This transition is requested by bison)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   417
 *   sfc_state     -> push current state(sfc_state); goto(sfc_qualifier_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   418
 *                     (when expecting an action qualifier. This transition is requested by bison)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   419
 *   sfc_qualifier_state -> pop() to sfc_state
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   420
 *                     (when no longer expecting an action qualifier. This transition is requested by bison)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   421
 *
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   422
 *   config_state  -> push(config_state); goto(task_init_state)
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   423
 *                     (when parsing a task initialisation. This transition is requested by bison)
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   424
 *   task_init_state -> pop()
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   425
 *                     (when no longer parsing task initialisation parameters. This transition is requested by bison)
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   426
 *
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   427
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   428
 * There is another secondary state machine for parsing comments, another for file_includes, 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   429
 * and yet another for time literals.
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   430
 */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   431
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   432
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   433
/* we are parsing a configuration. */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   434
%s config_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   435
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   436
/* Inside a configuration, we are parsing a task initialisation parameters */
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   437
/* This means that PRIORITY, SINGLE and INTERVAL must be handled as
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   438
 * tokens, and not as possible identifiers. Note that the above words
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   439
 * are not keywords.
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   440
 */
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   441
%s task_init_state
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   442
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   443
/* we are looking for the first VAR inside a function's, program's or function block's declaration */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   444
%s header_state
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   445
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   446
/* we are parsing a function, program or function block sequence of VAR..END_VAR delcarations */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   447
%x vardecl_list_state 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   448
/* a substate of the vardecl_list_state: we are inside a specific VAR .. END_VAR */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   449
%s vardecl_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   450
737
f6bc5230aadd Fix comments and code alignment
Mario de Sousa <msousa@fe.up.pt>
parents: 686
diff changeset
   451
/* we will be parsing a function body. Whether il/st/sfc remains to be determined */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   452
%x body_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   453
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   454
/* we are parsing il code -> flex must return the EOL tokens!       */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   455
%s il_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   456
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   457
/* we are parsing st code -> flex must not return the EOL tokens!   */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   458
%s st_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   459
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   460
/* we are parsing sfc code -> flex must not return the EOL tokens!  */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   461
%s sfc_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   462
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   463
/* we are parsing sfc code, and expecting an action qualifier.      */
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   464
%s sfc_qualifier_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   465
86
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   466
/* we are parsing sfc code, and expecting the priority token.       */
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   467
%s sfc_priority_state
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   468
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   469
/* we are parsing a TIME# literal. We must not return any {identifier} tokens. */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   470
%x time_literal_state
75
0e381bdb8888 Fixing handling of task initialisation.
mario
parents: 74
diff changeset
   471
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   472
/* we are parsing a comment. */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   473
%x comment_state
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   474
75
0e381bdb8888 Fixing handling of task initialisation.
mario
parents: 74
diff changeset
   475
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   476
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   477
/* File #include's */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   478
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   479
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   480
/* We extend the IEC 61131-3 standard syntax to allow inclusion
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   481
 * of other files, using the IEC 61131-3 pragma directive...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   482
 * The accepted syntax is:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   483
 *  {#include "<filename>"}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   484
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   485
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   486
/* the "include" states are used for picking up the name of an include file */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   487
%x include_beg
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   488
%x include_filename
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   489
%x include_end
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   490
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   491
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   492
file_include_pragma_filename	[^\"]*
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   493
file_include_pragma_beg		"{#include"{st_whitespace}\"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   494
file_include_pragma_end		\"{st_whitespace}"}"
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   495
file_include_pragma			{file_include_pragma_beg}{file_include_pragma_filename}{file_include_pragma_end}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   496
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   497
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   498
%{
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   499
#define MAX_INCLUDE_DEPTH 16
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   500
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   501
typedef struct {
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   502
    int eof;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   503
    int lineNumber;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   504
    int currentChar;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   505
    int lineLength;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   506
    int currentTokenStart;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   507
    char *buffer;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   508
    FILE *in_file;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   509
  } tracking_t;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   510
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   511
typedef struct {
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   512
	  YY_BUFFER_STATE buffer_state;
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   513
	  tracking_t *env;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   514
	  const char *filename;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   515
	} include_stack_t;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   516
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   517
tracking_t *current_tracking = NULL;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   518
include_stack_t include_stack[MAX_INCLUDE_DEPTH];
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   519
int include_stack_ptr = 0;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   520
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   521
const char *INCLUDE_DIRECTORIES[] = {
40
873a5b60a7ea Fixed -I library include path behavior + removed old lib implementation + added generated lib func names to stage 1_2 + added Makefile.Linux
etisserant
parents: 15
diff changeset
   522
	DEFAULT_LIBDIR,
873a5b60a7ea Fixed -I library include path behavior + removed old lib implementation + added generated lib func names to stage 1_2 + added Makefile.Linux
etisserant
parents: 15
diff changeset
   523
	".",
873a5b60a7ea Fixed -I library include path behavior + removed old lib implementation + added generated lib func names to stage 1_2 + added Makefile.Linux
etisserant
parents: 15
diff changeset
   524
	"/lib",
873a5b60a7ea Fixed -I library include path behavior + removed old lib implementation + added generated lib func names to stage 1_2 + added Makefile.Linux
etisserant
parents: 15
diff changeset
   525
	"/usr/lib",
873a5b60a7ea Fixed -I library include path behavior + removed old lib implementation + added generated lib func names to stage 1_2 + added Makefile.Linux
etisserant
parents: 15
diff changeset
   526
	"/usr/lib/iec",
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   527
	NULL /* must end with NULL!! */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   528
	};
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   529
%}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   530
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   531
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   532
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   533
/*****************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   534
/* Prelimenary constructs... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   535
/*****************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   536
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   537
/* PRAGMAS */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   538
/* ======= */
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   539
/* In order to allow the declaration of POU prototypes (Function, FB, Program, ...),
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   540
 * especially the prototypes of Functions and FBs defined in the standard
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   541
 * (i.e. standard functions and FBs), we extend the IEC 61131-3 standard syntax 
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   542
 * with two pragmas to indicate that the code is to be parsed (going through the 
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   543
 * lexical, syntactical, and semantic analysers), but no code is to be generated.
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   544
 * 
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   545
 * The accepted syntax is:
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   546
 *  {no_code_generation begin}
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   547
 *    ... prototypes ...
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   548
 *  {no_code_generation end}
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   549
 * 
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   550
 * When parsing these prototypes the abstract syntax tree will be populated as usual,
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   551
 * allowing the semantic analyser to correctly analyse the semantics of calls to these
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   552
 * functions/FBs. However, stage4 will simply ignore all IEC61131-3 code
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   553
 * between the above two pragmas.
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   554
 */
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   555
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   556
disable_code_generation_pragma	"{disable code generation}"
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   557
enable_code_generation_pragma	"{enable code generation}"
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   558
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   559
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   560
/* Any other pragma... */
634
736b36a83548 Added double curly braces for pragma (kept single curly braces for compatibility). Added macro def and undef surrounding pragma to simplify user code. Moved useless comment from generated code back to code generator.
Edouard Tisserant
parents: 627
diff changeset
   561
pragma "{"[^}]*"}"|"{{"([^}]|"}"[^}])*"}}"
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   562
/*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   563
pragma "{"[^}]*"}"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   564
*/
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   565
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   566
/* COMMENTS */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   567
/* ======== */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   568
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   569
/* In order to allow nested comments, comments are handled by a specific comment_state state */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   570
/* Whenever a "(*" is found, we push the current state onto the stack, and enter a new instance of the comment_state state.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   571
 * Whenever a "*)" is found, we pop a state off the stack
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   572
 */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   573
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   574
/* comments... */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   575
comment_beg  "(*"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   576
comment_end  "*)"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   577
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   578
/* However, bison has a shift/reduce conflict in bison, when parsing formal function/FB
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   579
 * invocations with the 'NOT <variable_name> =>' syntax (which needs two look ahead 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   580
 * tokens to be parsed correctly - and bison being LALR(1) only supports one).
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   581
 * The current work around requires flex to completely parse the '<variable_name> =>'
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   582
 * sequence. This sequence includes whitespace and/or comments between the 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   583
 * <variable_name> and the "=>" token.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   584
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   585
 * This flex rule (sendto_identifier_token) uses the whitespace/comment as trailing context,
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   586
 * which means we can not use the comment_state method of specifying/finding and ignoring 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   587
 * comments.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   588
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   589
 * For this reason only, we must also define what a complete comment looks like, so
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   590
 * it may be used in this rule. Since the rule uses the whitespace_or_comment
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   591
 * construct as trailing context, this definition of comment must not use any
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   592
 * trailing context either.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   593
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   594
 * Aditionally, it is not possible to define nested comments in flex without the use of
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   595
 * states, so for this particular location, we do NOT support nested comments.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   596
 */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   597
/* NOTE: this seemingly unnecessary complex definition is required
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   598
 *       to be able to eat up comments such as:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   599
 *          '(* Testing... ! ***** ******)'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   600
 *       without using the trailing context command in flex (/{context})
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   601
 *       since {comment} itself will later be used with
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   602
 *       trailing context ({comment}/{context})
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   603
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   604
not_asterisk				[^*]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   605
not_close_parenthesis_nor_asterisk	[^*)]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   606
asterisk				"*"
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   607
comment_text	({not_asterisk})|(({asterisk}+){not_close_parenthesis_nor_asterisk})
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   608
comment		"(*"({comment_text}*)({asterisk}+)")"
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   609
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   610
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   611
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   612
/* 3.1 Whitespace */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   613
/* ============== */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   614
/*
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   615
 * Whitespace is clearly defined (see IEC 61131-3 v2, section 2.1.4)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   616
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   617
 * Whitespace definition includes the newline character.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   618
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   619
 * However, the standard is inconsistent in that in IL the newline character 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   620
 * is considered a token (EOL - end of line). 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   621
 * In our implementation we therefore have two definitions of whitespace
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   622
 *   - one for ST, that includes the newline character
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   623
 *   - one for IL without the newline character.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   624
 * Additionally, when parsing IL, the newline character is treated as the EOL token.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   625
 * This requires the use of a state machine in the lexical parser that needs at least 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   626
 * some knowledge of the syntax itself.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   627
 *
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   628
 * NOTE: Our definition of whitespace will only work in ASCII!
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   629
 *
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   630
 * NOTE: we cannot use
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   631
 *         st_whitespace	[:space:]*
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   632
 *       since we use {st_whitespace} as trailing context. In our case
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   633
 *       this would not constitute "dangerous trailing context", but the
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   634
 *       lexical generator (i.e. flex) does not know this (since it does
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   635
 *       not know which characters belong to the set [:space:]), and will
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   636
 *       generate a "dangerous trailing context" warning!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   637
 *       We use this alternative just to stop the flex utility from
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   638
 *       generating the invalid (in this case) warning...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   639
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   640
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   641
st_whitespace			[ \f\n\r\t\v]*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   642
il_whitespace			[ \f\r\t\v]*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   643
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   644
st_whitespace_or_pragma_or_commentX	({st_whitespace})|({pragma})|({comment})
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   645
il_whitespace_or_pragma_or_commentX	({il_whitespace})|({pragma})|({comment})
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   646
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   647
st_whitespace_or_pragma_or_comment	{st_whitespace_or_pragma_or_commentX}*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   648
il_whitespace_or_pragma_or_comment	{il_whitespace_or_pragma_or_commentX}*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   649
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   650
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   651
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   652
qualified_identifier	{identifier}(\.{identifier})+
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   653
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   654
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   655
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   656
/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   657
/* B.1.1 Letters, digits and identifiers */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   658
/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   659
/* NOTE: The following definitions only work if the host computer
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   660
 *       is using the ASCII maping. For e.g., with EBCDIC [A-Z]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   661
 *       contains non-alphabetic characters!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   662
 *       The correct way of doing it would be to use
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   663
 *       the [:upper:] etc... definitions.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   664
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   665
 *       Unfortunately, further on we need all printable
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   666
 *       characters (i.e. [:print:]), but excluding '$'.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   667
 *       Flex does not allow sets to be composed by excluding
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   668
 *       elements. Sets may only be constructed by adding new
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   669
 *       elements, which means that we have to revert to
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   670
 *       [\x20\x21\x23\x25\x26\x28-x7E] for the definition
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   671
 *       of the printable characters with the required exceptions.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   672
 *       The above also implies the use of ASCII, but now we have
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   673
 *       no way to work around it|
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   674
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   675
 *       The conclusion is that our parser is limited to ASCII
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   676
 *       based host computers!!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   677
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   678
letter		[A-Za-z]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   679
digit		[0-9]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   680
octal_digit	[0-7]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   681
hex_digit	{digit}|[A-F]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   682
identifier	({letter}|(_({letter}|{digit})))((_?({letter}|{digit}))*)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   683
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   684
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   685
/* B.1.2 Constants */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   686
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   687
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   688
/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   689
/* B.1.2.1   Numeric literals */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   690
/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   691
integer         {digit}((_?{digit})*)
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   692
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   693
/* Some helper symbols for parsing TIME literals... */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   694
integer_0_59    (0(_?))*([0-5](_?))?{digit}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   695
integer_0_19    (0(_?))*([0-1](_?))?{digit}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   696
integer_20_23   (0(_?))*2(_?)[0-3]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   697
integer_0_23    {integer_0_19}|{integer_20_23}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   698
integer_0_999   {digit}((_?{digit})?)((_?{digit})?)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   699
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   700
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   701
binary_integer  2#{bit}((_?{bit})*)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   702
bit		[0-1]
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   703
octal_integer   8#{octal_digit}((_?{octal_digit})*)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   704
hex_integer     16#{hex_digit}((_?{hex_digit})*)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   705
exponent        [Ee]([+-]?){integer}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   706
/* The correct definition for real would be:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   707
 * real		{integer}\.{integer}({exponent}?)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   708
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   709
 * Unfortunately, the spec also defines fixed_point (B 1.2.3.1) as:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   710
 * fixed_point		{integer}\.{integer}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   711
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   712
 * This means that {integer}\.{integer} could be interpreted
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   713
 * as either a fixed_point or a real.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   714
 * I have opted to interpret {integer}\.{integer} as a fixed_point.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   715
 * In order to do this, the definition of real has been changed to:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   716
 * real		{integer}\.{integer}{exponent}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   717
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   718
 * This means that the syntax parser now needs to define a real to be
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   719
 * either a real_token or a fixed_point_token!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   720
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   721
real		{integer}\.{integer}{exponent}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   722
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   723
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   724
/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   725
/* B.1.2.2   Character Strings */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   726
/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   727
/*
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   728
common_character_representation :=
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   729
<any printable character except '$', '"' or "'">
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   730
|'$$'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   731
|'$L'|'$N'|'$P'|'$R'|'$T'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   732
|'$l'|'$n'|'$p'|'$r'|'$t'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   733
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   734
NOTE: 	$ = 0x24
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   735
	" = 0x22
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   736
	' = 0x27
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   737
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   738
	printable chars in ASCII: 0x20-0x7E
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   739
*/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   740
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   741
esc_char_u		$L|$N|$P|$R|$T
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   742
esc_char_l		$l|$n|$p|$r|$t
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   743
esc_char		$$|{esc_char_u}|{esc_char_l}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   744
double_byte_char	(${hex_digit}{hex_digit}{hex_digit}{hex_digit})
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   745
single_byte_char	(${hex_digit}{hex_digit})
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   746
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   747
/* WARNING:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   748
 * This definition is only valid in ASCII...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   749
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   750
 * Flex includes the function print_char() that defines
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   751
 * all printable characters portably (i.e. whatever character
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   752
 * encoding is currently being used , ASCII, EBCDIC, etc...)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   753
 * Unfortunately, we cannot generate the definition of
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   754
 * common_character_representation portably, since flex
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   755
 * does not allow definition of sets by subtracting
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   756
 * elements in one set from another set.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   757
 * This means we must build up the defintion of
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   758
 * common_character_representation using only set addition,
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   759
 * which leaves us with the only choice of defining the
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   760
 * characters non-portably...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   761
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   762
common_character_representation		[\x20\x21\x23\x25\x26\x28-\x7E]|{esc_char}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   763
double_byte_character_representation 	$\"|'|{double_byte_char}|{common_character_representation}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   764
single_byte_character_representation 	$'|\"|{single_byte_char}|{common_character_representation}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   765
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   766
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   767
double_byte_character_string	\"({double_byte_character_representation}*)\"
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   768
single_byte_character_string	'({single_byte_character_representation}*)'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   769
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   770
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   771
/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   772
/* B 1.2.3.1 - Duration */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   773
/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   774
fixed_point		{integer}\.{integer}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   775
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   776
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   777
/* NOTE: The IEC 61131-3 v2 standard has an incorrect formal syntax definition of duration,
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   778
 *       as its definition does not match the standard's text.
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   779
 *       IEC 61131-3 v3 (committee draft) seems to have this fixed, so we use that
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   780
 *       definition instead!
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   781
 *
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   782
 *       duration::= ('T' | 'TIME') '#' ['+'|'-'] interval
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   783
 *       interval::= days | hours | minutes | seconds | milliseconds
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   784
 *       fixed_point  ::= integer [ '.' integer]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   785
 *       days         ::= fixed_point 'd' | integer 'd' ['_'] [ hours ]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   786
 *       hours        ::= fixed_point 'h' | integer 'h' ['_'] [ minutes ]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   787
 *       minutes      ::= fixed_point 'm' | integer 'm' ['_'] [ seconds ]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   788
 *       seconds      ::= fixed_point 's' | integer 's' ['_'] [ milliseconds ]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   789
 *       milliseconds ::= fixed_point 'ms'
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   790
 * 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   791
 * 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   792
 *  The original IEC 61131-3 v2 definition is:
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   793
 *       duration ::= ('T' | 'TIME') '#' ['-'] interval
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   794
 *       interval ::= days | hours | minutes | seconds | milliseconds
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   795
 *       fixed_point  ::= integer [ '.' integer]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   796
 *       days         ::= fixed_point 'd' | integer 'd' ['_'] hours
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   797
 *       hours        ::= fixed_point 'h' | integer 'h' ['_'] minutes
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   798
 *       minutes      ::= fixed_point 'm' | integer 'm' ['_'] seconds
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   799
 *       seconds      ::= fixed_point 's' | integer 's' ['_'] milliseconds
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   800
 *       milliseconds ::= fixed_point 'ms'
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   801
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   802
 */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   803
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   804
interval_ms_X		({integer_0_999}(\.{integer})?)ms
686
9b87606d4c07 Fix processing of TIME literals (submited by Andreas)
Mario de Sousa <msousa@fe.up.pt>
parents: 627
diff changeset
   805
interval_s_X		{integer_0_59}s(_?{interval_ms_X})?|({integer_0_59}(\.{integer})?s)
9b87606d4c07 Fix processing of TIME literals (submited by Andreas)
Mario de Sousa <msousa@fe.up.pt>
parents: 627
diff changeset
   806
interval_m_X		{integer_0_59}m(_?{interval_s_X})?|({integer_0_59}(\.{integer})?m)
9b87606d4c07 Fix processing of TIME literals (submited by Andreas)
Mario de Sousa <msousa@fe.up.pt>
parents: 627
diff changeset
   807
interval_h_X		{integer_0_23}h(_?{interval_m_X})?|({integer_0_23}(\.{integer})?h)
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   808
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   809
interval_ms		{integer}ms|({fixed_point}ms)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   810
interval_s		{integer}s(_?{interval_ms_X})?|({fixed_point}s)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   811
interval_m		{integer}m(_?{interval_s_X})?|({fixed_point}m)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   812
interval_h		{integer}h(_?{interval_m_X})?|({fixed_point}h)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   813
interval_d		{integer}d(_?{interval_h_X})?|({fixed_point}d)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   814
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   815
interval		{interval_ms}|{interval_s}|{interval_m}|{interval_h}|{interval_d}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   816
686
9b87606d4c07 Fix processing of TIME literals (submited by Andreas)
Mario de Sousa <msousa@fe.up.pt>
parents: 627
diff changeset
   817
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   818
/* to help provide nice error messages, we also parse an incorrect but plausible interval... */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   819
/* NOTE that this erroneous interval will be parsed outside the time_literal_state, so must not 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   820
 *      be able to parse any other legal lexcial construct (besides a legal interval, but that
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   821
 *      is OK as this rule will appear _after_ the rule to parse legal intervals!).
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   822
 */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   823
fixed_point_or_integer  {fixed_point}|{integer}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   824
erroneous_interval	({fixed_point_or_integer}d_?)?({fixed_point_or_integer}h_?)?({fixed_point_or_integer}m_?)?({fixed_point_or_integer}s_?)?({fixed_point_or_integer}ms)?
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   825
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   826
/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   827
/* B.1.4.1   Directly Represented Variables */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   828
/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   829
/* The correct definition, if the standard were to be followed... */
11
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   830
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   831
location_prefix			[IQM]
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   832
size_prefix			[XBWDL]
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   833
direct_variable_standard	%{location_prefix}({size_prefix}?){integer}((.{integer})*)
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   834
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   835
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   836
/* For the MatPLC, we will accept %<identifier>
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   837
 * as a direct variable, this being mapped onto the MatPLC point
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   838
 * named <identifier>
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   839
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   840
/* TODO: we should not restrict it to only the accepted syntax
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   841
 * of <identifier> as specified by the standard. MatPLC point names
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   842
 * have a more permissive syntax.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   843
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   844
 * e.g. "P__234"
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   845
 *    Is a valid MatPLC point name, but not a valid <identifier> !!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   846
 *    The same happens with names such as "333", "349+23", etc...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   847
 *    How can we handle these more expressive names in our case?
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   848
 *    Remember that some direct variable may remain anonymous, with
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   849
 *    declarations such as:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   850
 *    VAR
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   851
 *       AT %I3 : BYTE := 255;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   852
 *    END_VAR
11
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   853
 *    in which case we are currently using "%I3" as the variable
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   854
 *    name.
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   855
 */
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   856
/* direct_variable_matplc		%{identifier} */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   857
/* direct_variable			{direct_variable_standard}|{direct_variable_matplc} */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   858
direct_variable			{direct_variable_standard}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   859
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   860
/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   861
/* B 1.4.3 - Declaration & Initialisation */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   862
/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   863
incompl_location	%[IQM]\*
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   864
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   865
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   866
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   867
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   868
%%
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   869
	/* fprintf(stderr, "flex: state %d\n", YY_START); */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   870
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   871
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   872
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   873
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   874
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   875
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   876
	/*****   F I R S T    T H I N G S    F I R S T   *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   877
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   878
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   879
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   880
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   881
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   882
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   883
	/***********************************************************/
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   884
	/* Handle requests sent by bison for flex to change state. */
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   885
	/***********************************************************/
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
   886
	if (get_goto_body_state()) {
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   887
	  yy_push_state(body_state);
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
   888
	  rst_goto_body_state();
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
   889
	}
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   890
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   891
	if (get_goto_sfc_qualifier_state()) {
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   892
	  yy_push_state(sfc_qualifier_state);
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   893
	  rst_goto_sfc_qualifier_state();
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   894
	}
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   895
86
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   896
	if (get_goto_sfc_priority_state()) {
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   897
	  yy_push_state(sfc_priority_state);
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   898
	  rst_goto_sfc_priority_state();
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   899
	}
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   900
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   901
	if (get_goto_task_init_state()) {
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   902
	  yy_push_state(task_init_state);
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   903
	  rst_goto_task_init_state();
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   904
	}
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   905
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   906
	if (get_pop_state()) {
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   907
	  yy_pop_state();
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   908
	  rst_pop_state();
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   909
	}
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   910
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   911
	/***************************/
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   912
	/* Handle the pragmas!     */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   913
	/***************************/
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   914
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   915
	/* We start off by searching for the pragmas we handle in the lexical parser. */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   916
<INITIAL>{file_include_pragma}	unput_text(0); yy_push_state(include_beg);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   917
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   918
	/* Pragmas sent to syntax analyser (bison) */
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   919
{disable_code_generation_pragma}               return disable_code_generation_pragma_token;
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   920
{enable_code_generation_pragma}                return enable_code_generation_pragma_token;
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   921
<body_state,vardecl_list_state>{disable_code_generation_pragma}   return disable_code_generation_pragma_token;
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   922
<body_state,vardecl_list_state>{enable_code_generation_pragma}    return enable_code_generation_pragma_token;
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   923
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   924
	/* Any other pragma we find, we just pass it up to the syntax parser...   */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   925
	/* Note that the <body_state> state is exclusive, so we have to include it here too. */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   926
{pragma}	{/* return the pragmma without the enclosing '{' and '}' */
637
1b6f337222e0 Fix bug in code for pragma with double brackets
Laurent Bessard
parents: 634
diff changeset
   927
         int cut = yytext[1]=='{'?2:1;
634
736b36a83548 Added double curly braces for pragma (kept single curly braces for compatibility). Added macro def and undef surrounding pragma to simplify user code. Moved useless comment from generated code back to code generator.
Edouard Tisserant
parents: 627
diff changeset
   928
		 yytext[strlen(yytext)-cut] = '\0';
736b36a83548 Added double curly braces for pragma (kept single curly braces for compatibility). Added macro def and undef surrounding pragma to simplify user code. Moved useless comment from generated code back to code generator.
Edouard Tisserant
parents: 627
diff changeset
   929
		 yylval.ID=strdup(yytext+cut);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   930
		 return pragma_token;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   931
		}
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   932
<body_state,vardecl_list_state>{pragma} {/* return the pragmma without the enclosing '{' and '}' */
701
562c01f82afb Fix pragma with double bracket token stripping
Laurent Bessard
parents: 637
diff changeset
   933
		 int cut = yytext[1]=='{'?2:1;
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   934
		 yytext[strlen(yytext)-cut] = '\0';
701
562c01f82afb Fix pragma with double bracket token stripping
Laurent Bessard
parents: 637
diff changeset
   935
		 yylval.ID=strdup(yytext+cut);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   936
		 return pragma_token;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   937
		}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   938
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   939
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   940
	/*********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   941
	/* Handle the file includes!     */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   942
	/*********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   943
<include_beg>{file_include_pragma_beg}	BEGIN(include_filename);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   944
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   945
<include_filename>{file_include_pragma_filename}	{
756
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
   946
			  /* set the internal state variables of lexical analyser to process a new include file */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
   947
			  include_file(yytext);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   948
			  /* switch to whatever state was active before the include file */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   949
			  yy_pop_state();
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   950
			  /* now process the new file... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   951
			}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   952
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   953
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   954
<<EOF>>			{     /* NOTE: Currently bison is incorrectly using END_OF_INPUT in many rules
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   955
			       *       when checking for syntax errors in the input source code.
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   956
			       *       This means that in reality flex will be asked to carry on reading the input
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   957
			       *       even after it has reached the end of all (including the main) input files.
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   958
			       *       In other owrds, we will be called to return more tokens, even after we have
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   959
			       *       already returned an END_OF_INPUT token. In this case, we must carry on returning
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   960
			       *       more END_OF_INPUT tokens.
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   961
			       * 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   962
			       *       However, in the above case we will be asked to carry on reading more tokens 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   963
			       *       from the main input file, after we have reached the end. For this to work
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   964
			       *       correctly, we cannot close the main input file!
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   965
			       * 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   966
			       *       This is why we WILL be called with include_stack_ptr == 0 multiple times,
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   967
			       *       and why we must handle it as a special case
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   968
			       *       that leaves the include_stack_ptr unchanged, and returns END_OF_INPUT once again.
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   969
			       * 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   970
			       *       As a corollory, flex can never safely close the main input file, and we must ask
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   971
			       *       bison to close it!
76
ec7799ec929b fixing include bug (only ocured for includes in main program file).
mario
parents: 75
diff changeset
   972
			       */
ec7799ec929b fixing include bug (only ocured for includes in main program file).
mario
parents: 75
diff changeset
   973
			  if (include_stack_ptr == 0) {
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   974
			      // fclose(yyin);           // Must not do this!!
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   975
			      // free(current_tracking); // Must not do this!!
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   976
			      /* yyterminate() terminates the scanner and returns a 0 to the 
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   977
			       * scanner's  caller, indicating "all done".
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   978
			       *	
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   979
			       * Our syntax parser (written with bison) has the token	
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   980
			       * END_OF_INPUT associated to the value 0, so even though
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   981
			       * we don't explicitly return the token END_OF_INPUT
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   982
			       * calling yyterminate() is equivalent to doing that. 
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
   983
			       */ 	
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   984
			    yyterminate();
737
f6bc5230aadd Fix comments and code alignment
Mario de Sousa <msousa@fe.up.pt>
parents: 686
diff changeset
   985
			  } else {
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   986
			    fclose(yyin);
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
   987
			    free(current_tracking);
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
   988
			    --include_stack_ptr;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   989
			    yy_delete_buffer(YY_CURRENT_BUFFER);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   990
			    yy_switch_to_buffer((include_stack[include_stack_ptr]).buffer_state);
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
   991
			    current_tracking = include_stack[include_stack_ptr].env;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   992
			      /* removing constness of char *. This is safe actually,
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   993
			       * since the only real const char * that is stored on the stack is
1
5d893a68be6e Changes made since Mario visit at LOLITECH. Thanks again !
etisserant
parents: 0
diff changeset
   994
			       * the first one (i.e. the one that gets stored in include_stack[0],
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   995
			       * which is never free'd!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   996
			       */
286
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
   997
			    /* NOTE: We do __NOT__ free the malloc()'d memory since 
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
   998
			     *       pointers to this filename will be kept by many objects
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
   999
			     *       in the abstract syntax tree.
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
  1000
			     *       This will later be used to provide correct error
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
  1001
			     *       messages during semantic analysis (stage 3)
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
  1002
			     */
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
  1003
			    /* free((char *)current_filename); */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1004
			    current_filename = include_stack[include_stack_ptr].filename;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1005
			    yy_push_state(include_end);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1006
			  }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1007
			}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1008
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1009
<include_end>{file_include_pragma_end}	yy_pop_state();
756
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1010
	/* handle the artificial file includes created by include_string(), which do not end with a '}' */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1011
<include_end>.				unput_text(0); yy_pop_state(); 
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1012
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1013
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1014
	/*********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1015
	/* Handle all the state changes! */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1016
	/*********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1017
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1018
	/* INITIAL -> header_state */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1019
<INITIAL>{
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1020
	/* NOTE: how about functions that do not declare variables, and go directly to the body_state???
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1021
	 *      - According to Section 2.5.1.3 (Function Declaration), item 2 in the list, a FUNCTION
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1022
	 *        must have at least one input argument, so a correct declaration will have at least
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1023
	 *        one VAR_INPUT ... VAR_END construct!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1024
	 *      - According to Section 2.5.2.2 (Function Block Declaration), a FUNCTION_BLOCK
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1025
	 *        must have at least one input argument, so a correct declaration will have at least
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1026
	 *        one VAR_INPUT ... VAR_END construct!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1027
	 *      - According to Section 2.5.3 (Programs), a PROGRAM must have at least one input
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1028
	 *        argument, so a correct declaration will have at least one VAR_INPUT ... VAR_END
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1029
	 *        construct!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1030
	 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1031
	 *       All the above means that we needn't worry about PROGRAMs, FUNCTIONs or
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1032
	 *       FUNCTION_BLOCKs that do not have at least one VAR_END before the body_state.
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1033
	 *       If the code has an error, and no VAR_END before the body, we will simply
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1034
	 *       continue in the <vardecl_state> state, untill the end of the FUNCTION, FUNCTION_BLOCK
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1035
	 *       or PROGAM.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1036
	 */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1037
FUNCTION				BEGIN(header_state); return FUNCTION;
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1038
FUNCTION_BLOCK				BEGIN(header_state); return FUNCTION_BLOCK;
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1039
PROGRAM					BEGIN(header_state); return PROGRAM;
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1040
CONFIGURATION				BEGIN(config_state); return CONFIGURATION;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1041
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1042
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1043
	/* INITIAL -> body_state */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1044
	/* required if the function, program, etc.. has no VAR block! */
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1045
	/* We comment it out since the standard does not allow this.  */
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1046
	/* NOTE: Even if we were to include the following code, it    */
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1047
	/*       would have no effect whatsoever since the above      */
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1048
	/*       rules will take precendence!                         */
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1049
	/*
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1050
<INITIAL>{
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1051
FUNCTION	BEGIN(body_state); return FUNCTION;
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1052
FUNCTION_BLOCK	BEGIN(body_state); return FUNCTION_BLOCK;
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1053
PROGRAM		BEGIN(body_state); return PROGRAM;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1054
}
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1055
	*/
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1056
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1057
	/* header_state -> (vardecl_state | body_state) */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1058
<header_state>{
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1059
VAR				unput_text(0); BEGIN(vardecl_list_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1060
}
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1061
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1062
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1063
<vardecl_list_state>{
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1064
VAR				unput_text(0); yy_push_state(vardecl_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1065
.				unput_text(0); BEGIN(body_state); /* anything else, just change to body_state! */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1066
}
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1067
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1068
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1069
<vardecl_state>{
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1070
END_VAR				yy_pop_state(); return END_VAR; /* pop back to header_state */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1071
}
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1072
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1073
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1074
	/* body_state -> (il_state | st_state) */
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1075
<body_state>{
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1076
END_FUNCTION			BEGIN(INITIAL); return END_FUNCTION;
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1077
END_FUNCTION_BLOCK		BEGIN(INITIAL); return END_FUNCTION_BLOCK;
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1078
END_PROGRAM			BEGIN(INITIAL); return END_PROGRAM;
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1079
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1080
INITIAL_STEP			unput_text(0); yy_push_state(sfc_state); 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1081
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1082
{qualified_identifier}		unput_text(0); yy_push_state(st_state); /* will always be followed by '[' for an array access, or ':=' as the left hand of an assignment statement */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1083
{direct_variable_standard}	unput_text(0); yy_push_state(st_state); /* will always be followed by ':=' as the left hand of an assignment statement */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1084
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1085
RETURN				unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1086
IF				unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1087
CASE				unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1088
FOR				unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1089
WHILE				unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1090
EXIT				unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1091
REPEAT				unput_text(0); yy_push_state(st_state);
151
3b898fb11e73 Bug on language selection in SFC Action fixed
lbessard
parents: 136
diff changeset
  1092
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1093
	/* ':=' occurs only in transitions, and not Function or FB bodies! */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1094
:=				unput_text(0); yy_push_state(st_state);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1095
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1096
{identifier}	{int token = get_identifier_token(yytext);
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1097
		 if ((token == prev_declared_fb_name_token) || (token == prev_declared_variable_name_token)) {
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1098
		   /* the code has a call to a function block OR has an assingment with a variable as the lvalue */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1099
		   unput_text(0); yy_push_state(st_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1100
		 } else
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1101
 		 if (token == prev_declared_derived_function_name_token) {
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1102
		   /* the code has a call to a function - must be IL */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1103
		   unput_text(0); yy_push_state(il_state);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1104
		 } else {
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1105
		   /* Might be a lable in IL, or a bug in ST/IL code. We jump to IL */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1106
		   unput_text(0); yy_push_state(il_state);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1107
		 }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1108
		}
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1109
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1110
.		unput_text(0); yy_push_state(il_state); /* Don't know what it could be. This is most likely a bug. Let's just to a random state... */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1111
}	/* end of body_state lexical parser */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1112
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1113
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1114
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1115
	/* (il_state | st_state) -> $previous_state (vardecl_state or sfc_state) */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1116
<il_state,st_state>{
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1117
END_FUNCTION		yy_pop_state(); unput_text(0);
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1118
END_FUNCTION_BLOCK	yy_pop_state(); unput_text(0);
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1119
END_PROGRAM		yy_pop_state(); unput_text(0);
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1120
END_TRANSITION		yy_pop_state(); unput_text(0);
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1121
END_ACTION		yy_pop_state(); unput_text(0);
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1122
}
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1123
4
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1124
	/* sfc_state -> INITIAL */
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1125
<sfc_state>{
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1126
END_FUNCTION		yy_pop_state(); unput_text(0);
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1127
END_FUNCTION_BLOCK	yy_pop_state(); unput_text(0);
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1128
END_PROGRAM		yy_pop_state(); unput_text(0);
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1129
}
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1130
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1131
	/* config -> INITIAL */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1132
END_CONFIGURATION	BEGIN(INITIAL); return END_CONFIGURATION;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1133
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1134
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1135
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1136
	/***************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1137
	/* Next is to to remove all whitespace */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1138
	/***************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1139
	/* NOTE: pragmas are handled right at the beginning... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1140
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1141
	/* The whitespace */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1142
<INITIAL,header_state,config_state,body_state,vardecl_list_state,vardecl_state,st_state,sfc_state,task_init_state,sfc_qualifier_state>{st_whitespace}	/* Eat any whitespace */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1143
<il_state>{il_whitespace}		/* Eat any whitespace */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1144
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1145
	/* The comments */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1146
<body_state,vardecl_list_state>{comment_beg}	yy_push_state(comment_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1147
{comment_beg}							yy_push_state(comment_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1148
<comment_state>{
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1149
{comment_beg}							yy_push_state(comment_state);
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1150
{comment_end}							yy_pop_state();
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1151
.								/* Ignore text inside comment! */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1152
\n								/* Ignore text inside comment! */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1153
}
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
  1154
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1155
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1156
	/* B.1.1 Letters, digits and identifiers */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1157
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1158
	/* NOTE: 'R1', 'IN', etc... are IL operators, and therefore tokens
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1159
	 *       On the other hand, the spec does not define them as keywords,
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1160
	 *       which means they may be re-used for variable names, etc...!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1161
	 *       The syntax parser already caters for the possibility of these
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1162
	 *       tokens being used for variable names in their declarations.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1163
	 *       When they are declared, they will be added to the variable symbol table!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1164
	 *       Further appearances of these tokens must no longer be parsed
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1165
	 *       as R1_tokens etc..., but rather as variable_name_tokens!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1166
	 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1167
	 *       That is why the first thing we do with identifiers, even before
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1168
	 *       checking whether they may be a 'keyword', is to check whether
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1169
	 *       they have been previously declared as a variable name,
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1170
	 *
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1171
	 *       However, we have a dilema! Should we here also check for
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1172
	 *       prev_declared_derived_function_name_token?
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1173
	 *       If we do, then the 'MOD' default library function (defined in
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1174
	 *       the standard) will always be returned as a function name, and
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1175
	 *       it will therefore not be possible to use it as an operator as 
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1176
	 *       in the following ST expression 'X := Y MOD Z;' !
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1177
	 *       If we don't, then even it will not be possible to use 'MOD'
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1178
	 *       as a funtion as in 'X := MOD(Y, Z);'
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1179
	 *       We solve this by NOT testing for function names here, and
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1180
	 *       handling this function and keyword clash in bison!
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1181
	 */
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1182
 /*
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1183
{identifier} 	{int token = get_identifier_token(yytext);
81
de518eb7bc74 removing debug messages left by mistake in previous commit.
mario
parents: 80
diff changeset
  1184
		 // fprintf(stderr, "flex: analysing identifier '%s'...", yytext); 
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1185
		 if ((token == prev_declared_variable_name_token) ||
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1186
//		     (token == prev_declared_derived_function_name_token) || // DO NOT add this condition!
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1187
		     (token == prev_declared_fb_name_token)) {
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1188
		 // if (token != identifier_token)
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1189
		 // * NOTE: if we replace the above uncommented conditions with
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1190
                  *       the simple test of (token != identifier_token), then 
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1191
                  *       'MOD' et al must be removed from the 
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1192
                  *       library_symbol_table as a default function name!
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1193
		  * //
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1194
		   yylval.ID=strdup(yytext);
81
de518eb7bc74 removing debug messages left by mistake in previous commit.
mario
parents: 80
diff changeset
  1195
		   // fprintf(stderr, "returning token %d\n", token); 
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1196
		   return token;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1197
		 }
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1198
		 // otherwise, leave it for the other lexical parser rules... 
81
de518eb7bc74 removing debug messages left by mistake in previous commit.
mario
parents: 80
diff changeset
  1199
		 // fprintf(stderr, "rejecting\n"); 
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1200
		 REJECT;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1201
		}
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1202
 */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1203
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1204
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1205
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1206
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1207
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1208
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1209
	/*****   N O W    D O   T H E   K E Y W O R D S   *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1210
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1211
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1212
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1213
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1214
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1215
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1216
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1217
EN	return EN;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1218
ENO	return ENO;			/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1219
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1220
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1221
	/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1222
	/* B 1.2.1 - Numeric Literals */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1223
	/******************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1224
TRUE		return TRUE;		/* Keyword */
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1225
BOOL#1  	return boolean_true_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1226
BOOL#TRUE	return boolean_true_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1227
SAFEBOOL#1	{if (get_opt_safe_extensions()) {return safeboolean_true_literal_token;} else{REJECT;}} /* Keyword (Data Type) */ 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1228
SAFEBOOL#TRUE	{if (get_opt_safe_extensions()) {return safeboolean_true_literal_token;} else{REJECT;}} /* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1229
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1230
FALSE		return FALSE;		/* Keyword */
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1231
BOOL#0  	return boolean_false_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1232
BOOL#FALSE  	return boolean_false_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1233
SAFEBOOL#0	{if (get_opt_safe_extensions()) {return safeboolean_false_literal_token;} else{REJECT;}} /* Keyword (Data Type) */ 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1234
SAFEBOOL#FALSE	{if (get_opt_safe_extensions()) {return safeboolean_false_literal_token;} else{REJECT;}} /* Keyword (Data Type) */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1235
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1236
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1237
	/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1238
	/* B 1.2.3.1 - Duration */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1239
	/************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1240
t#		return T_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1241
T#		return T_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1242
TIME		return TIME;		/* Keyword (Data Type) */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1243
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1244
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1245
	/************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1246
	/* B 1.2.3.2 - Time of day and Date */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1247
	/************************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1248
TIME_OF_DAY	return TIME_OF_DAY;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1249
TOD		return TIME_OF_DAY;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1250
DATE		return DATE;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1251
d#		return D_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1252
D#		return D_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1253
DATE_AND_TIME	return DATE_AND_TIME;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1254
DT		return DATE_AND_TIME;	/* Keyword (Data Type) */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1255
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1256
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1257
	/***********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1258
	/* B 1.3.1 - Elementary Data Types */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1259
	/***********************************/
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1260
BOOL		return BOOL;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1261
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1262
BYTE		return BYTE;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1263
WORD		return WORD;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1264
DWORD		return DWORD;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1265
LWORD		return LWORD;		/* Keyword (Data Type) */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1266
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1267
SINT		return SINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1268
INT		return INT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1269
DINT		return DINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1270
LINT		return LINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1271
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1272
USINT		return USINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1273
UINT		return UINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1274
UDINT		return UDINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1275
ULINT		return ULINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1276
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1277
REAL		return REAL;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1278
LREAL		return LREAL;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1279
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1280
WSTRING		return WSTRING;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1281
STRING		return STRING;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1282
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1283
TIME		return TIME;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1284
DATE		return DATE;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1285
DT		return DT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1286
TOD		return TOD;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1287
DATE_AND_TIME	return DATE_AND_TIME;	/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1288
TIME_OF_DAY	return TIME_OF_DAY;	/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1289
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1290
	/*****************************************************************/
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1291
	/* Keywords defined in "Safety Software Technical Specification" */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1292
	/*****************************************************************/
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1293
        /* 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1294
         * NOTE: The following keywords are define in 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1295
         *       "Safety Software Technical Specification,
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1296
         *        Part 1: Concepts and Function Blocks,  
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1297
         *        Version 1.0 – Official Release"
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1298
         *        written by PLCopen - Technical Committee 5
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1299
         *
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1300
         *        We only support these extensions and keywords
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1301
         *        if the apropriate command line option is given.
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1302
         */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1303
SAFEBOOL	     {if (get_opt_safe_extensions()) {return SAFEBOOL;}          else {REJECT;}} 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1304
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1305
SAFEBYTE	     {if (get_opt_safe_extensions()) {return SAFEBYTE;}          else {REJECT;}} 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1306
SAFEWORD	     {if (get_opt_safe_extensions()) {return SAFEWORD;}          else {REJECT;}} 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1307
SAFEDWORD	     {if (get_opt_safe_extensions()) {return SAFEDWORD;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1308
SAFELWORD	     {if (get_opt_safe_extensions()) {return SAFELWORD;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1309
               
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1310
SAFEREAL	     {if (get_opt_safe_extensions()) {return SAFESINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1311
SAFELREAL    	     {if (get_opt_safe_extensions()) {return SAFELREAL;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1312
                  
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1313
SAFESINT	     {if (get_opt_safe_extensions()) {return SAFESINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1314
SAFEINT	             {if (get_opt_safe_extensions()) {return SAFEINT;}           else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1315
SAFEDINT	     {if (get_opt_safe_extensions()) {return SAFEDINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1316
SAFELINT             {if (get_opt_safe_extensions()) {return SAFELINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1317
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1318
SAFEUSINT            {if (get_opt_safe_extensions()) {return SAFEUSINT;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1319
SAFEUINT             {if (get_opt_safe_extensions()) {return SAFEUINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1320
SAFEUDINT            {if (get_opt_safe_extensions()) {return SAFEUDINT;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1321
SAFEULINT            {if (get_opt_safe_extensions()) {return SAFEULINT;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1322
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1323
 /* SAFESTRING and SAFEWSTRING are not yet supported, i.e. checked correctly, in the semantic analyser (stage 3) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1324
 /*  so it is best not to support them at all... */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1325
 /*
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1326
SAFEWSTRING          {if (get_opt_safe_extensions()) {return SAFEWSTRING;}       else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1327
SAFESTRING           {if (get_opt_safe_extensions()) {return SAFESTRING;}        else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1328
 */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1329
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1330
SAFETIME             {if (get_opt_safe_extensions()) {return SAFETIME;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1331
SAFEDATE             {if (get_opt_safe_extensions()) {return SAFEDATE;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1332
SAFEDT               {if (get_opt_safe_extensions()) {return SAFEDT;}            else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1333
SAFETOD              {if (get_opt_safe_extensions()) {return SAFETOD;}           else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1334
SAFEDATE_AND_TIME    {if (get_opt_safe_extensions()) {return SAFEDATE_AND_TIME;} else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1335
SAFETIME_OF_DAY      {if (get_opt_safe_extensions()) {return SAFETIME_OF_DAY;}   else{REJECT;}}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1336
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1337
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1338
	/* B 1.3.2 - Generic data types */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1339
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1340
	/* Strangely, the following symbols do not seem to be required! */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1341
	/* But we include them so they become reserved words, and do not
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1342
	 * get passed up to bison as an identifier...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1343
	 */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1344
ANY		return ANY;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1345
ANY_DERIVED	return ANY_DERIVED;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1346
ANY_ELEMENTARY	return ANY_ELEMENTARY;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1347
ANY_MAGNITUDE	return ANY_MAGNITUDE;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1348
ANY_NUM		return ANY_NUM;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1349
ANY_REAL	return ANY_REAL;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1350
ANY_INT		return ANY_INT;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1351
ANY_BIT		return ANY_BIT;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1352
ANY_STRING	return ANY_STRING;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1353
ANY_DATE	return ANY_DATE;	/* Keyword (Data Type) */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1354
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1355
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1356
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1357
	/* B 1.3.3 - Derived data types */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1358
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1359
":="		return ASSIGN;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1360
".."		return DOTDOT;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1361
TYPE		return TYPE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1362
END_TYPE	return END_TYPE;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1363
ARRAY		return ARRAY;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1364
OF		return OF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1365
STRUCT		return STRUCT;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1366
END_STRUCT	return END_STRUCT;	/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1367
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1368
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1369
	/*********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1370
	/* B 1.4 - Variables */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1371
	/*********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1372
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1373
	/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1374
	/* B 1.4.3 - Declaration & Initialisation */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1375
	/******************************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1376
VAR_INPUT	return VAR_INPUT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1377
VAR_OUTPUT	return VAR_OUTPUT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1378
VAR_IN_OUT	return VAR_IN_OUT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1379
VAR_EXTERNAL	return VAR_EXTERNAL;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1380
VAR_GLOBAL	return VAR_GLOBAL;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1381
END_VAR		return END_VAR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1382
RETAIN		return RETAIN;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1383
NON_RETAIN	return NON_RETAIN;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1384
R_EDGE		return R_EDGE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1385
F_EDGE		return F_EDGE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1386
AT		return AT;		/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1387
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1388
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1389
	/***********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1390
	/* B 1.5.1 - Functions */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1391
	/***********************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1392
FUNCTION	return FUNCTION;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1393
END_FUNCTION	return END_FUNCTION;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1394
VAR		return VAR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1395
CONSTANT	return CONSTANT;	/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1396
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1397
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1398
	/*****************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1399
	/* B 1.5.2 - Function Blocks */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1400
	/*****************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1401
FUNCTION_BLOCK		return FUNCTION_BLOCK;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1402
END_FUNCTION_BLOCK	return END_FUNCTION_BLOCK;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1403
VAR_TEMP		return VAR_TEMP;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1404
VAR			return VAR;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1405
NON_RETAIN		return NON_RETAIN;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1406
END_VAR			return END_VAR;			/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1407
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1408
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1409
	/**********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1410
	/* B 1.5.3 - Programs */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1411
	/**********************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1412
PROGRAM		return PROGRAM;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1413
END_PROGRAM	return END_PROGRAM;		/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1414
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1415
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1416
	/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1417
	/* B 1.6 Sequential Function Chart elements */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1418
	/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1419
	/* NOTE: the following identifiers/tokens clash with the R and S IL operators, as well
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1420
	.* as other identifiers that may be used as variable names inside IL and ST programs.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1421
	 * They will have to be handled when we include parsing of SFC... For now, simply
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1422
	 * ignore them!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1423
	 */
1
5d893a68be6e Changes made since Mario visit at LOLITECH. Thanks again !
etisserant
parents: 0
diff changeset
  1424
	 
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1425
ACTION		return ACTION;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1426
END_ACTION	return END_ACTION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1427
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1428
TRANSITION	return TRANSITION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1429
END_TRANSITION	return END_TRANSITION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1430
FROM		return FROM;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1431
TO		return TO;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1432
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1433
INITIAL_STEP	return INITIAL_STEP;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1434
STEP		return STEP;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1435
END_STEP	return END_STEP;		/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1436
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1437
	/* PRIORITY is not a keyword, so we only return it when 
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1438
	 * it is explicitly required and we are not expecting any identifiers
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1439
	 * that could also use the same letter sequence (i.e. an identifier: piority)
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1440
	 */
86
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
  1441
<sfc_priority_state>PRIORITY	return PRIORITY;
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1442
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1443
<sfc_qualifier_state>{
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1444
L		return L;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1445
D		return D;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1446
SD		return SD;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1447
DS		return DS;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1448
SL		return SL;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1449
N		return N;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1450
P		return P;
627
e7caa7d32ef5 Adding support for P0 and P1 qualifiers and fixing code generated for SL qualifier
Laurent Bessard
parents: 616
diff changeset
  1451
P0		return P0;
e7caa7d32ef5 Adding support for P0 and P1 qualifiers and fixing code generated for SL qualifier
Laurent Bessard
parents: 616
diff changeset
  1452
P1		return P1;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1453
R		return R;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1454
S		return S;
1
5d893a68be6e Changes made since Mario visit at LOLITECH. Thanks again !
etisserant
parents: 0
diff changeset
  1455
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1456
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1457
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1458
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1459
	/* B 1.7 Configuration elements */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1460
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1461
CONFIGURATION		return CONFIGURATION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1462
END_CONFIGURATION	return END_CONFIGURATION;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1463
TASK			return TASK;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1464
RESOURCE		return RESOURCE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1465
ON			return ON;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1466
END_RESOURCE		return END_RESOURCE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1467
VAR_CONFIG		return VAR_CONFIG;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1468
VAR_ACCESS		return VAR_ACCESS;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1469
END_VAR			return END_VAR;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1470
WITH			return WITH;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1471
PROGRAM			return PROGRAM;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1472
RETAIN			return RETAIN;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1473
NON_RETAIN		return NON_RETAIN;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1474
READ_WRITE		return READ_WRITE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1475
READ_ONLY		return READ_ONLY;		/* Keyword */
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1476
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1477
	/* PRIORITY, SINGLE and INTERVAL are not a keywords, so we only return them when 
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1478
	 * it is explicitly required and we are not expecting any identifiers
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1479
	 * that could also use the same letter sequence (i.e. an identifier: piority, ...)
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1480
	 */
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1481
<task_init_state>{
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1482
PRIORITY		return PRIORITY;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1483
SINGLE			return SINGLE;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1484
INTERVAL		return INTERVAL;
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1485
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1486
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1487
	/***********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1488
	/* B 2.1 Instructions and Operands */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1489
	/***********************************/
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1490
<il_state>\n		return EOL;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1491
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1492
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1493
	/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1494
	/* B 2.2 Operators */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1495
	/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1496
	/* NOTE: we can't have flex return the same token for
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1497
	 *       ANDN and &N, neither for AND and &, since
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1498
	 *       AND and ANDN are considered valid variable
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1499
	 *       function or functionblock type names!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1500
	 *       This means that the parser may decide that the
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1501
	 *       AND or ANDN strings found in the source code
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1502
	 *       are being used as variable names
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1503
	 *       and not as operators, and will therefore transform
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1504
	 *       these tokens into indentifier tokens!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1505
	 *       We can't have the parser thinking that the source
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1506
	 *       code contained the string AND (which may be interpreted
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1507
	 *       as a vairable name) when in reality the source code
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1508
	 *       merely contained the character &, so we use two
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1509
	 *       different tokens for & and AND (and similarly
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1510
	 *       ANDN and &N)!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1511
	 */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1512
 /* The following tokens clash with ST expression operators and Standard Functions */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1513
 /* They are also keywords! */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1514
AND		return AND;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1515
MOD		return MOD;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1516
OR		return OR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1517
XOR		return XOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1518
NOT		return NOT;		/* Keyword */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1519
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1520
 /* The following tokens clash with Standard Functions */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1521
 /* They are keywords because they are a function name */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1522
<il_state>{
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1523
ADD		return ADD;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1524
DIV		return DIV;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1525
EQ		return EQ;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1526
GE		return GE;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1527
GT		return GT;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1528
LE		return LE;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1529
LT		return LT;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1530
MUL		return MUL;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1531
NE		return NE;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1532
SUB		return SUB;		/* Keyword (Standard Function) */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1533
}
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1534
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1535
 /* The following tokens clash with SFC action qualifiers */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1536
 /* They are not keywords! */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1537
<il_state>{
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1538
S		return S;
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1539
R		return R;
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1540
}
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1541
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1542
 /* The following tokens clash with ST expression operators */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1543
&		return AND2;		/* NOT a Delimiter! */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1544
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1545
 /* The following tokens have no clashes */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1546
 /* They are not keywords! */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1547
<il_state>{
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1548
LD		return LD;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1549
LDN		return LDN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1550
ST		return ST;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1551
STN		return STN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1552
S1		return S1;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1553
R1		return R1;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1554
CLK		return CLK;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1555
CU		return CU;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1556
CD		return CD;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1557
PV		return PV;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1558
IN		return IN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1559
PT		return PT;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1560
ANDN		return ANDN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1561
&N		return ANDN2;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1562
ORN		return ORN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1563
XORN		return XORN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1564
CAL		return CAL;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1565
CALC		return CALC;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1566
CALCN		return CALCN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1567
RET		return RET;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1568
RETC		return RETC;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1569
RETCN		return RETCN;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1570
JMP		return JMP;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1571
JMPC		return JMPC;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1572
JMPCN		return JMPCN;
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1573
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1574
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1575
	/***********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1576
	/* B 3.1 - Expressions */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1577
	/***********************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1578
"**"		return OPER_EXP;	/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1579
"<>"		return OPER_NE;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1580
">="		return OPER_GE;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1581
"<="		return OPER_LE;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1582
&		return AND2;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1583
AND		return AND;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1584
XOR		return XOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1585
OR		return OR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1586
NOT		return NOT;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1587
MOD		return MOD;		/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1588
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1589
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1590
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1591
	/* B 3.2.2 Subprogram Control Statements */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1592
	/*****************************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1593
:=		return ASSIGN;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1594
=>		return SENDTO;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1595
RETURN		return RETURN;		/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1596
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1597
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1598
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1599
	/* B 3.2.3 Selection Statements */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1600
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1601
IF		return IF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1602
THEN		return THEN;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1603
ELSIF		return ELSIF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1604
ELSE		return ELSE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1605
END_IF		return END_IF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1606
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1607
CASE		return CASE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1608
OF		return OF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1609
ELSE		return ELSE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1610
END_CASE	return END_CASE;	/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1611
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1612
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1613
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1614
	/* B 3.2.4 Iteration Statements */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1615
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1616
FOR		return FOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1617
TO		return TO;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1618
BY		return BY;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1619
DO		return DO;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1620
END_FOR		return END_FOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1621
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1622
WHILE		return WHILE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1623
DO		return DO;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1624
END_WHILE	return END_WHILE;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1625
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1626
REPEAT		return REPEAT;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1627
UNTIL		return UNTIL;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1628
END_REPEAT	return END_REPEAT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1629
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1630
EXIT		return EXIT;		/* Keyword */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1631
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1632
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1633
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1634
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1635
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1636
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1637
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1638
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1639
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1640
	/*****                                              *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1641
	/*****                                              *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1642
	/*****  N O W    W O R K    W I T H    V A L U E S  *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1643
	/*****                                              *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1644
	/*****                                              *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1645
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1646
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1647
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1648
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1649
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1650
	/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1651
	/* B.1.4.1   Directly Represented Variables */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1652
	/********************************************/
175
dadda1b5401e Adding support for checking direct variable declared before using
lbessard
parents: 152
diff changeset
  1653
{direct_variable}   {yylval.ID=strdup(yytext); return get_direct_variable_token(yytext);}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1654
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1655
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1656
	/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1657
	/* B 1.4.3 - Declaration & Initialisation */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1658
	/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1659
{incompl_location}	{yylval.ID=strdup(yytext); return incompl_location_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1660
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1661
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1662
	/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1663
	/* B 1.2.3.1 - Duration */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1664
	/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1665
{fixed_point}		{yylval.ID=strdup(yytext); return fixed_point_token;}
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1666
{interval}		{/*fprintf(stderr, "entering time_literal_state ##%s##\n", yytext);*/ unput_and_mark('#'); yy_push_state(time_literal_state);}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1667
{erroneous_interval}	{return erroneous_interval_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1668
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1669
<time_literal_state>{
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1670
{integer}d		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return integer_d_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1671
{integer}h		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return integer_h_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1672
{integer}m		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return integer_m_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1673
{integer}s		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return integer_s_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1674
{integer}ms		{yylval.ID=strdup(yytext); yylval.ID[yyleng-2] = '\0'; return integer_ms_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1675
{fixed_point}d		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return fixed_point_d_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1676
{fixed_point}h		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return fixed_point_h_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1677
{fixed_point}m		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return fixed_point_m_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1678
{fixed_point}s		{yylval.ID=strdup(yytext); yylval.ID[yyleng-1] = '\0'; return fixed_point_s_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1679
{fixed_point}ms		{yylval.ID=strdup(yytext); yylval.ID[yyleng-2] = '\0'; return fixed_point_ms_token;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1680
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1681
_			/* do nothing - eat it up!*/
616
0c7663fdc8d3 Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents: 547
diff changeset
  1682
\#			{/*fprintf(stderr, "popping from time_literal_state (###)\n");*/ yy_pop_state(); return end_interval_token;}
0c7663fdc8d3 Aloow use of SFC STEPs as variables.
Mario de Sousa <msousa@fe.up.pt>
parents: 547
diff changeset
  1683
.			{/*fprintf(stderr, "time_literal_state: found invalid character '%s'. Aborting!\n", yytext);*/ ERROR;}
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1684
\n			{ERROR;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1685
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1686
	/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1687
	/* B.1.2.2   Character Strings */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1688
	/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1689
{double_byte_character_string} {yylval.ID=strdup(yytext); return double_byte_character_string_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1690
{single_byte_character_string} {yylval.ID=strdup(yytext); return single_byte_character_string_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1691
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1692
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1693
	/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1694
	/* B.1.2.1   Numeric literals */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1695
	/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1696
{integer}		{yylval.ID=strdup(yytext); return integer_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1697
{real}			{yylval.ID=strdup(yytext); return real_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1698
{binary_integer}	{yylval.ID=strdup(yytext); return binary_integer_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1699
{octal_integer} 	{yylval.ID=strdup(yytext); return octal_integer_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1700
{hex_integer} 		{yylval.ID=strdup(yytext); return hex_integer_token;}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1701
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1702
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1703
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1704
	/* B.1.1 Letters, digits and identifiers */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1705
	/*****************************************/
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1706
<st_state>{identifier}/({st_whitespace_or_pragma_or_comment})"=>"	{yylval.ID=strdup(yytext); return sendto_identifier_token;}
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1707
<il_state>{identifier}/({il_whitespace_or_pragma_or_comment})"=>"	{yylval.ID=strdup(yytext); return sendto_identifier_token;}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1708
{identifier} 				{yylval.ID=strdup(yytext);
75
0e381bdb8888 Fixing handling of task initialisation.
mario
parents: 74
diff changeset
  1709
					 // printf("returning identifier...: %s, %d\n", yytext, get_identifier_token(yytext));
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1710
					 return get_identifier_token(yytext);}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1711
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1712
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1713
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1714
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1715
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1716
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1717
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1718
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1719
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1720
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1721
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1722
	/*****   T H E    L E F T O V E R S . . .   *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1723
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1724
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1725
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1726
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1727
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1728
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1729
	/* do the single character tokens...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1730
	 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1731
	 *  e.g.:  ':'  '('  ')'  '+'  '*'  ...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1732
	 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1733
.	{return yytext[0];}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1734
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1735
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1736
%%
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1737
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1738
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1739
/*************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1740
/* Tracking Functions... */
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1741
/*************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1742
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1743
#define MAX_BUFFER_LENGTH 1000
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1744
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1745
tracking_t *GetNewTracking(FILE* in_file) {
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1746
  tracking_t* new_env = new tracking_t;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1747
  new_env->eof = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1748
  new_env->lineNumber = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1749
  new_env->currentChar = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1750
  new_env->lineLength = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1751
  new_env->currentTokenStart = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1752
  new_env->buffer = (char*)malloc(MAX_BUFFER_LENGTH);
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1753
  new_env->in_file = in_file;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1754
  return new_env;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1755
}
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1756
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1758
/* GetNextChar: reads a character from input */
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1759
int GetNextChar(char *b, int maxBuffer) {
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1760
  char *p;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1761
  
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1762
  if (  current_tracking->eof  )
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1763
    return 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1764
  
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1765
  while (  current_tracking->currentChar >= current_tracking->lineLength  ) {
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1766
    current_tracking->currentChar = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1767
    current_tracking->currentTokenStart = 1;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1768
    current_tracking->eof = false;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1769
    
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1770
    p = fgets(current_tracking->buffer, MAX_BUFFER_LENGTH, current_tracking->in_file);
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1771
    if (  p == NULL  ) {
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1772
      if (  ferror(current_tracking->in_file)  )
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1773
        return 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1774
      current_tracking->eof = true;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1775
      return 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1776
    }
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1777
    
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1778
    current_tracking->lineNumber++;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1779
    current_tracking->lineLength = strlen(current_tracking->buffer);
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1780
  }
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1781
  
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1782
  b[0] = current_tracking->buffer[current_tracking->currentChar];
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1783
  if (b[0] == ' ' || b[0] == '\t')
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1784
    current_tracking->currentTokenStart++;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1785
  current_tracking->currentChar++;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1786
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1787
  return b[0]==0?0:1;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1788
}
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1789
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1790
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1791
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1792
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1793
/***********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1794
/* Utility function definitions... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1795
/***********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1796
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1797
/* print the include file stack to stderr... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1798
void print_include_stack(void) {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1799
  int i;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1800
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1801
  if ((include_stack_ptr - 1) >= 0)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1802
    fprintf (stderr, "in file "); 
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1803
  for (i = include_stack_ptr - 1; i >= 0; i--)
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1804
    fprintf (stderr, "included from file %s:%d\n", include_stack[i].filename, include_stack[i].env->lineNumber);
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1805
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1806
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1807
756
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1808
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1809
/* set the internal state variables of lexical analyser to process a new include file */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1810
void handle_include_file_(FILE *filehandle, const char *filename) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1811
  if (include_stack_ptr >= MAX_INCLUDE_DEPTH) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1812
    fprintf(stderr, "Includes nested too deeply\n");
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1813
    exit( 1 );
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1814
  }
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1815
  
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1816
  yyin = filehandle;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1817
  
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1818
  include_stack[include_stack_ptr].buffer_state = YY_CURRENT_BUFFER;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1819
  include_stack[include_stack_ptr].env = current_tracking;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1820
  include_stack[include_stack_ptr].filename = current_filename;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1821
  
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1822
  current_filename = strdup(filename);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1823
  current_tracking = GetNewTracking(yyin);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1824
  include_stack_ptr++;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1825
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1826
  /* switch input buffer to new file... */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1827
  yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1828
}
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1829
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1830
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1831
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1832
/* insert the code (in <source_code>) into the source code we are parsing.
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1833
 * This is done by creating an artificial file with that new source code, and then 'including' the file
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1834
 */
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1835
void include_string_(const char *source_code) {
756
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1836
  FILE *tmp_file = tmpfile();
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1837
  
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1838
  if(tmp_file == NULL) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1839
    perror("Error creating temp file.");
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1840
    exit(EXIT_FAILURE);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1841
  }
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1842
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1843
  fwrite((void *)source_code, 1, strlen(source_code), tmp_file);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1844
  rewind(tmp_file);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1845
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1846
  /* now parse the tmp file, by asking flex to handle it as if it had been included with the (*#include ... *) pragma... */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1847
  handle_include_file_(tmp_file, "");
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1848
//fclose(tmp_file);  /* do NOT close file. It must only be closed when we finish reading from it! */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1849
}
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1850
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1851
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1852
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1853
/* Open an include file, and set the internal state variables of lexical analyser to process a new include file */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1854
void include_file(const char *filename) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1855
  FILE *filehandle = NULL;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1856
  
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1857
  for (int i = 0; (INCLUDE_DIRECTORIES[i] != NULL) && (filehandle == NULL); i++) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1858
    char *full_name;
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1859
    full_name = strdup3(INCLUDE_DIRECTORIES[i], "/", filename);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1860
    if (full_name == NULL) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1861
      fprintf(stderr, "Out of memory!\n");
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1862
      exit( 1 );
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1863
    }
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1864
    filehandle = fopen(full_name, "r");
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1865
    free(full_name);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1866
  }
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1867
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1868
  if (NULL == filehandle) {
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1869
    fprintf(stderr, "Error opening included file %s\n", filename);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1870
    exit( 1 );
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1871
  }
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1872
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1873
  /* now process the new file... */
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1874
  handle_include_file_(filehandle, filename);
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1875
}
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1876
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1877
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1878
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1879
634f476cb60f Insert the auto generated enum datatype conversion functions after the TYPE...END_TYPE, instead of at the end of input file.
Mario de Sousa <msousa@fe.up.pt>
parents: 737
diff changeset
  1880
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1881
/* return all the text in the current token back to the input stream, except the first n chars. */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1882
void unput_text(unsigned int n) {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1883
  /* it seems that flex has a bug in that it will not correctly count the line numbers
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1884
   * if we return newlines back to the input stream. These newlines will be re-counted
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1885
   * a second time when they are processed again by flex.
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1886
   * We therefore determine how many newlines are in the text we are returning,
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1887
   * and decrement the line counter acordingly...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1888
   */
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1889
  /*unsigned int i;
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1890
  
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1891
  for (i = n; i < strlen(yytext); i++)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1892
    if (yytext[i] == '\n')
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1893
      current_tracking->lineNumber--;*/
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1894
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1895
  /* now return all the text back to the input stream... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1896
  yyless(n);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1897
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1898
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1899
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1900
/* return all the text in the current token back to the input stream, 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1901
 * but first return to the stream an additional character to mark the end of the token. 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1902
 */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1903
void unput_and_mark(const char c) {
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1904
  char *yycopy = strdup( yytext ); /* unput() destroys yytext, so we copy it first */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1905
  unput(c);
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1906
  for (int i = yyleng-1; i >= 0; i--)
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1907
    unput(yycopy[i]);
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1908
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1909
  free(yycopy);
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1910
}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1911
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1912
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1913
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1914
/* Called by flex when it reaches the end-of-file */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1915
int yywrap(void)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1916
{
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1917
  /* We reached the end of the input file... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1918
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1919
  /* Should we continue with another file? */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1920
  /* If so:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1921
   *   open the new file...
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1922
   *   return 0;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1923
   */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1924
737
f6bc5230aadd Fix comments and code alignment
Mario de Sousa <msousa@fe.up.pt>
parents: 686
diff changeset
  1925
  /* to stop processing...
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1926
   *   return 1;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1927
   */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1928
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1929
  return 1;  /* Stop scanning at end of input file. */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1930
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1931
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1932
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1933
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1934
/*******************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1935
/* Public Interface for Bison. */
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1936
/*******************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1937
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1938
/* The following functions will be called from inside bison code! */
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1939
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1940
void include_string(const char *source_code) {include_string_(source_code);}
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1941
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1942
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1943
/* Tell flex which file to parse. This function will not imediately start parsing the file.
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1944
 * To parse the file, you then need to call yyparse()
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1945
 *
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1946
 * Returns NULL on error opening the file (and a valid errno), or 0 on success.
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1947
 * Caller must close the file!
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1948
 */
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1949
FILE *parse_file(const char *filename) {
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1950
  FILE *filehandle = NULL;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1951
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1952
  if((filehandle = fopen(filename, "r")) != NULL) {
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1953
    yyin = filehandle;
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1954
    current_filename = strdup(filename);
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1955
    current_tracking = GetNewTracking(yyin);
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1956
  }
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1957
  return filehandle;
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1958
}
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1959
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1960
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1961
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1962
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1963
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1964
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1965
/*************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1966
/* Include a main() function to test */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1967
/* the token parsing by flex....     */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1968
/*************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1969
#ifdef TEST_MAIN
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1970
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1971
#include "../util/symtable.hh"
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1972
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1973
yystype yylval;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1974
YYLTYPE yylloc;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1975
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1976
15
0b472e25eb16 Adding changes to make the compiler compatible with bison ver 2.3
mario
parents: 13
diff changeset
  1977
0b472e25eb16 Adding changes to make the compiler compatible with bison ver 2.3
mario
parents: 13
diff changeset
  1978
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1979
int get_identifier_token(const char *identifier_str) {return 0;}
175
dadda1b5401e Adding support for checking direct variable declared before using
lbessard
parents: 152
diff changeset
  1980
int get_direct_variable_token(const char *direct_variable_str) {return 0;}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1981
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1982
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1983
int main(int argc, char **argv) {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1984
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1985
  FILE *in_file;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1986
  int res;
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1987
	
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1988
  if (argc == 1) {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1989
    /* Work as an interactive (command line) parser... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1990
    while((res=yylex()))
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1991
      fprintf(stderr, "(line %d)token: %d\n", yylineno, res);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1992
  } else {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1993
    /* Work as non-interactive (file) parser... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1994
    if((in_file = fopen(argv[1], "r")) == NULL) {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1995
      char *errmsg = strdup2("Error opening main file ", argv[1]);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1996
      perror(errmsg);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1997
      free(errmsg);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1998
      return -1;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1999
    }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2000
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2001
    /* parse the file... */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2002
    yyin = in_file;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2003
    current_filename = argv[1];
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2004
    while(1) {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2005
      res=yylex();
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2006
      fprintf(stderr, "(line %d)token: %d (%s)\n", yylineno, res, yylval.ID);
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2007
    }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2008
  }
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  2009
	
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  2010
	return 0;
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2011
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2012
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2013
#endif