stage1_2/iec_flex.ll
author Mario de Sousa <msousa@fe.up.pt>
Mon, 03 Jul 2017 20:27:15 +0100
changeset 1052 f91488700835
parent 1050 bdc21971f95d
child 1055 ce7b65e24676
permissions -rw-r--r--
Debugging helper class: print value of tokens in debugging output.
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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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/* The '%option debug' makes the generated scanner run in
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 * debug mode.
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%option debug
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 */
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0
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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.hh 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.hh 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.hh"
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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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/* 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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/* 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++;							\
0
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	}
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0
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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...
0
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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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void include_file(const char *include_filename);
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/* The body_state tries to find a ';' before a END_PROGRAM, END_FUNCTION or END_FUNCTION_BLOCK or END_ACTION
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 * To do so, it must ignore comments and pragmas. This means that we cannot do this in a signle lex rule.
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 * However, we must store any text we consume in every rule, so we can push it back into the buffer
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 * once we have decided if we are parsing ST or IL code. The following functions manage that buffer used by
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 * the body_state.
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 */
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void  append_bodystate_buffer(const char *yytext);
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void   unput_bodystate_buffer(void);
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int  isempty_bodystate_buffer(void);
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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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 *       language parsing, or during the declaration of data types,
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 *       function headers, etc. in IL, the syntax parser would crash.
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 *
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 *       We can solve this issue using one of three methods:
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 *        (1) Augment all the syntax that does not accept the EOL
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 *            token to simply ignore it. This makes the syntax
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 *            definition (in iec.y) very cluttered!
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   265
 *        (2) Let the lexical parser figure out which language
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   266
 *            it is parsing, and decide whether or not to issue
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   267
 *            the EOL token. This requires the lexical parser
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   268
 *            to have knowledge of the syntax!, making for a poor
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   269
 *            overall organisation of the code. It would also make it
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   270
 *            very difficult to understand the lexical parser as it
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   271
 *            would use several states, and a state machine to transition
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   272
 *            between the states. The state transitions would be
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   273
 *            intermingled with the lexical parser defintion!
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   274
 *        (3) Use a mixture of (1) and (2). The lexical analyser
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   275
 *            merely distinguishes between function headers and function
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   276
 *            bodies, but no longer makes a distinction between il and
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   277
 *            st language bodies. When parsing a body, it will return
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   278
 *            the EOL token. In other states '\n' will be ignored as
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   279
 *            whitespace.
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   280
 *            The ST language syntax has been augmented in the syntax
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   281
 *            parser configuration to ignore any EOL tokens that it may
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   282
 *            come across!
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   283
 *            This option has both drawbacks of option (1) and (2), but
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   284
 *            much less intensely.
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   285
 *            The syntax that gets cluttered is limited to the ST statements
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   286
 *            (which is rather limited, compared to the function headers and
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   287
 *            data type declarations, etc...), while the state machine in
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   288
 *            the lexical parser becomes very simple. All state transitions
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   289
 *            can be handled within the lexical parser by itself, and can be
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   290
 *            easily identified. Thus knowledge of the syntax required by
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   291
 *            the lexical parser is very limited!
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   292
 *
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   293
 * Amazingly enough, I (Mario) got to implement option (3)
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   294
 * at first, requiring two basic states, decl and body.
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   295
 * The lexical parser will enter the body state when
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   296
 * it is parsing the body of a function/program/function block. The
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   297
 * state transition is done when we find a VAR_END that is not followed
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   298
 * by a VAR! This is the syntax knowledge that gets included in the
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   299
 * lexical analyser with this option!
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etisserant
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   300
 * Unfortunately, getting the st syntax parser to ignore EOL anywhere
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   301
 * where they might appear leads to conflicts. This is due to the fact
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   302
 * that the syntax parser uses the single look-ahead token to remove
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   303
 * possible conflicts. When we insert a possible EOL, the single
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   304
 * look ahead token becomes the EOL, which means the potential conflicts
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   305
 * could no longer be resolved.
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   306
 * Removing these conflicts would make the st syntax parser very convoluted,
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diff changeset
   307
 * and adding the extraneous EOL would make it very cluttered.
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   308
 * This option was therefore dropped in favour of another!
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diff changeset
   309
 *
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   310
 * I ended up implementing (2). Unfortunately the lexical analyser can
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   311
 * not easily distinguish between il and st code, since function
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   312
 * calls in il are very similar to function block calls in st.
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   313
 * We therefore use an extra 'body' state. When the lexical parser
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diff changeset
   314
 * finds that last END_VAR, it enters the body state. This state
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   315
 * must figure out what language is being parsed from the first few
68
b0a43002dcac Adding basic error checking.
mario
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diff changeset
   316
 * tokens, and switch to the correct state (st, il or sfc) according to the
0
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   317
 * language. This means that we insert quite a bit of knowledge of the
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diff changeset
   318
 * syntax of the languages into the lexical parser. This is ugly, but it
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diff changeset
   319
 * works, and at least it is possible to keep all the state changes together
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   320
 * to make it easier to remove them later on if need be.
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   321
 * Once the language being parsed has been identified, 
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mario
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diff changeset
   322
 * the body state returns any matched text back to the buffer with unput(),
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mario
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diff changeset
   323
 * to be later matched correctly by the apropriate language parser (st, il or sfc).
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mario
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diff changeset
   324
 *
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mario
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diff changeset
   325
 * Aditionally, in sfc state it may further recursively enter the body state
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mario
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diff changeset
   326
 * once again. This is because an sfc body may contain ACTIONS, which are then
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mario
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diff changeset
   327
 * written in one of the three languages (ST, IL or SFC), so once again we need
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mario
parents: 58
diff changeset
   328
 * 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
   329
 * 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
   330
 * state once again.
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mario
parents: 58
diff changeset
   331
 * 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
   332
 * the action was written in) the sfc state will become active again. This is done by
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   333
 * pushing and poping the previously active state!
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mario
parents: 58
diff changeset
   334
 *
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mario
parents: 58
diff changeset
   335
 * The sfc_qualifier_state is required because when parsing actions within an
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mario
parents: 58
diff changeset
   336
 * sfc, we will be expecting action qualifiers (N, P, R, S, DS, SD, ...). In order
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   337
 * to bison to work correctly, these qualifiers must be returned as tokens. However,
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mario
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diff changeset
   338
 * these tokens are not reserved keywords, which means it should be possible to
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mario
parents: 58
diff changeset
   339
 * define variables/functions/FBs with any of these names (including 
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mario
parents: 58
diff changeset
   340
 * S and R which are special because they are also IL operators). So, when we are not
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mario
parents: 58
diff changeset
   341
 * expecting any action qualifiers, flex does not return these tokens, and is free
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mario
parents: 58
diff changeset
   342
 * to interpret them as previously defined variables/functions/... as the case may be.
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mario
parents: 58
diff changeset
   343
 *
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   344
 * 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
   345
 * 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
   346
 * 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
   347
 * 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
   348
 * 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
   349
 * 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
   350
 *       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
   351
 *       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
   352
 *       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
   353
 *
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   354
 * The ignore_pou_state state is only used when bison says it is doing the pre-parsing.
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
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diff changeset
   355
 * During pre-parsing, the main state machine will only transition between
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
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diff changeset
   356
 * INITIAL and ignore_pou_state, and from here back to INITIAL. All other
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mjsousa
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diff changeset
   357
 * transitions are inhibited. This inhibition is actually just enforced by making
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mjsousa
parents: 948
diff changeset
   358
 * sure that the INITIAL ---> ignore_pou_state transition is tested before all other
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   359
 * transitions coming out of INITIAL state. All other transitions are unaffected, as they
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   360
 * never get a chance to be evaluated when bison is doing pre-parsing.
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   361
 * Pre-parsing is a first quick scan through the whole input source code simply
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   362
 * to determine the list of POUs and datatypes that will be defined in that
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   363
 * code. Basically, the objective is to fill up the previously_declared_xxxxx
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   364
 * maps, without processing the code itself. Once these maps have been filled up,
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   365
 * bison will throw away the AST (abstract syntax tree) created up to that point, 
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
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diff changeset
   366
 * and scan through the same source code again, but this time creating a correct AST.
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   367
 * This pre-scan allows the source code to reference POUs and datatypes that are
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   368
 * only declared after they are used!
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   369
 * 
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   370
 *
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   371
 * Here is a main state machine...
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   372
 *                                                                         --+  
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
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parents: 948
diff changeset
   373
 *                                                                           |  these states are
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mjsousa
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   374
 *              +------------> get_pou_name_state  ----> ignore_pou_state    |  only active 
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
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   375
 *              |                                            |               |  when bison is 
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   376
 *              |  ------------------------------------------+               |  doing the 
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   377
 *              |  |                                                         |  pre-parsing!!
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parents: 948
diff changeset
   378
 *              |  v                                                       --+
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23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
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parents: 867
diff changeset
   379
 *       +---> INITIAL <-------> config
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
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diff changeset
   380
 *       |        \
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mjsousa
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diff changeset
   381
 *       |        V
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
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diff changeset
   382
 *       |   header_state
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mjsousa
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diff changeset
   383
 *       |        |
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mjsousa
parents: 867
diff changeset
   384
 *       |        V
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mjsousa
parents: 867
diff changeset
   385
 *     vardecl_list_state <------> var_decl
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   386
 *       ^        | 
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   387
 *       |        | [using push()]
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mjsousa
parents: 867
diff changeset
   388
 *       |        |
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   389
 *       |        V
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   390
 *       |       body, 
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   391
 *       |        |
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   392
 *       |        | 
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   393
 *       |   -------------------
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   394
 *       |   |       |         |
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   395
 *       |   v       v         v
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   396
 *       |  st      il        sfc
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   397
 *       |   |       |         |  [using pop() when leaving st/il/sfc => goes to vardecl_list_state]
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   398
 *       |   |       |         |
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   399
 *       -----------------------
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   400
 *
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   401
 * NOTE:- When inside sfc, and an action or transition in ST/IL is found, then 
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   402
 *        we also push() to the body state. This means that sometimes, when pop()ing
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   403
 *        from st and il, the state machine may return to the sfc state!
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   404
 *      - The transitions form sfc to body will be decided by bison, which will
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   405
 *        tell flex to do the transition by calling cmd_goto_body_state().
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   406
 *   
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   407
 * 
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   408
 * Possible state changes are:
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   409
 *   INITIAL -> goto(ignore_pou_state)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   410
 *               (This transition state is only used when bison says it is doing the pre-parsing.)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   411
 *               (This transition takes precedence over all other transitions!)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   412
 *               (when a FUNCTION, FUNCTION_BLOCK, PROGRAM or CONFIGURATION is found)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   413
 * 
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   414
 *   INITIAL -> goto(config_state)
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   415
 *                (when a CONFIGURATION is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   416
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   417
 *   INITIAL -> goto(header_state)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   418
 *               (when a FUNCTION, FUNCTION_BLOCK, or PROGRAM is found)
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   419
 * 
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   420
 *   header_state -> goto(vardecl_list_state)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   421
 *               (When the first VAR token is found, i.e. at begining of first VAR .. END_VAR declaration)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   422
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   423
 *  vardecl_list_state -> push current state (vardecl_list_state), and goto(vardecl_state) 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   424
 *                (when a VAR token is found)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   425
 *   vardecl_state -> pop() to (vardecl_list_state) 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   426
 *                (when a END_VAR token is found)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   427
 * 
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   428
 *   vardecl_list_state -> push current state (vardecl_list_state), and goto(body_state) 
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   429
 *                (when the last END_VAR is found!)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   430
 *
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   431
 *   body_state    -> goto(sfc_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   432
 *                     (when it figures out it is parsing sfc language)
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   433
 *   body_state    -> goto(st_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   434
 *                     (when it figures out it is parsing st language)
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   435
 *   body_state    -> goto(il_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   436
 *                     (when it figures out it is parsing il language)
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   437
 *   st_state      -> pop() to vardecl_list_state
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   438
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, END_PROGRAM,
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   439
 *                      END_ACTION or END_TRANSITION is found)
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   440
 *   il_state      -> pop() to vardecl_list_state
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   441
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, END_PROGRAM,
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   442
 *                      END_ACTION or END_TRANSITION is found)
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   443
 *   sfc_state     -> pop() to vardecl_list_state
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   444
 *                     (when a END_FUNCTION, END_FUNCTION_BLOCK, or END_PROGRAM is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   445
 * 
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   446
 *   ignore_pou_state   -> goto(INITIAL)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   447
 *                         (when a END_FUNCTION, END_FUNCTION_BLOCK, END_PROGRAM or END_CONFIGURATION is found)
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   448
 *   vardecl_list_state -> goto(INITIAL)
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   449
 *                         (when a END_FUNCTION, END_FUNCTION_BLOCK, or END_PROGRAM is found)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   450
 *   config_state       -> goto(INITIAL)
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   451
 *                         (when a END_CONFIGURATION is found)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   452
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   453
 *  
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   454
 *   sfc_state     -> push current state(sfc_state); goto(body_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   455
 *                     (when parsing an action. This transition is requested by bison)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   456
 *   sfc_state     -> push current state(sfc_state); goto(sfc_qualifier_state)
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   457
 *                     (when expecting an action qualifier. This transition is requested by bison)
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   458
 *   sfc_qualifier_state -> pop() to sfc_state
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   459
 *                     (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
   460
 *
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   461
 *   config_state  -> push(config_state); goto(task_init_state)
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   462
 *                     (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
   463
 *   task_init_state -> pop()
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   464
 *                     (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
   465
 *
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   466
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   467
 * There is another secondary state machine for parsing comments, another for file_includes, 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   468
 * and yet another for time literals.
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   469
 */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   470
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   471
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   472
/* Bison is in the pre-parsing stage, and we are parsing a POU. Ignore everything up to the end of the POU! */
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   473
%x ignore_pou_state
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
   474
%x get_pou_name_state
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
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
/* we are parsing a configuration. */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   477
%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
   478
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   479
/* Inside a configuration, we are parsing a task initialisation parameters */
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   480
/* 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
   481
 * 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
   482
 * are not keywords.
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   483
 */
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   484
%s task_init_state
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   485
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   486
/* we are looking for the first VAR inside a function's, program's or function block's declaration */
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   487
/* This is not exclusive (%x) as we must be able to parse the identifier and data types of a function/FB */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   488
%s header_state
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   489
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   490
/* 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
   491
%x vardecl_list_state 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   492
/* 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
   493
%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
   494
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   495
/* we will be parsing a function body/action/transition. Whether il/st/sfc remains to be determined */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   496
%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
   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
/* 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
   499
%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
   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
/* 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
   502
%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
   503
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   504
/* 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
   505
%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
   506
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   507
/* we are parsing sfc code, and expecting an action qualifier.      */
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   508
%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
   509
86
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   510
/* 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
   511
%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
   512
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   513
/* 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
   514
%x time_literal_state
75
0e381bdb8888 Fixing handling of task initialisation.
mario
parents: 74
diff changeset
   515
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   516
/* we are parsing a comment. */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   517
%x comment_state
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   518
75
0e381bdb8888 Fixing handling of task initialisation.
mario
parents: 74
diff changeset
   519
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
/* 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
   522
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   523
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   524
/* 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
   525
 * 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
   526
 * 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
   527
 *  {#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
   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
/* 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
   531
%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
   532
%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
   533
%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
   534
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
file_include_pragma_filename	[^\"]*
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   537
file_include_pragma_beg		"{#include"{st_whitespace}\"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   538
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
   539
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
   540
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   541
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   542
%{
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   543
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   544
/* A counter to track the order by which each token is processed.
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   545
 * NOTE: This counter is not exactly linear (i.e., it does not get incremented by 1 for each token).
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   546
 *       i.e.. it may get incremented by more than one between two consecutive tokens.
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   547
 *       This is due to the fact that the counter gets incremented every 'user action' in flex,
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   548
 *       however not every user action will result in a token being passed to bison.
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   549
 *       Nevertheless this is still OK, as we are only interested in the relative
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   550
 *       ordering of tokens...
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   551
 */
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   552
static long int current_order = 0;
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   553
  
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   554
typedef struct {
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   555
    int eof;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   556
    int lineNumber;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   557
    int currentChar;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   558
    int lineLength;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   559
    int currentTokenStart;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   560
    char *buffer;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   561
    FILE *in_file;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   562
  } tracking_t;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   563
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   564
/* A forward declaration of a function defined at the end of this file. */
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   565
void FreeTracking(tracking_t *tracking);
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   566
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   567
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   568
#define MAX_INCLUDE_DEPTH 16
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
   569
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   570
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
   571
	  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
   572
	  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
   573
	  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
   574
	} 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
   575
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
   576
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
   577
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
   578
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
   579
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   580
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
   581
	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
   582
	".",
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
   583
	"/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
   584
	"/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
   585
	"/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
   586
	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
   587
	};
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   588
%}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   589
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   590
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   591
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   592
/*****************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   593
/* 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
   594
/*****************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   595
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   596
/* PRAGMAS */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   597
/* ======= */
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   598
/* 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
   599
 * 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
   600
 * (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
   601
 * 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
   602
 * 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
   603
 * 
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   604
 * 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
   605
 *  {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
   606
 *    ... prototypes ...
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   607
 *  {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
   608
 * 
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   609
 * 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
   610
 * 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
   611
 * 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
   612
 * 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
   613
 */
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   614
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   615
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
   616
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
   617
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   618
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   619
/* Any other pragma... */
869
d88f47549408 fix definition of pragma.
mjsousa
parents: 868
diff changeset
   620
pragma ("{"[^}]*"}")|("{{"([^}]|"}"[^}])*"}}")
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   621
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   622
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   623
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   624
/* COMMENTS */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   625
/* ======== */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   626
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   627
/* 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
   628
/* 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
   629
 * Whenever a "*)" is found, we pop a state off the stack
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   630
 */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   631
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   632
/* comments... */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   633
comment_beg  "(*"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   634
comment_end  "*)"
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   635
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   636
/* 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
   637
 * invocations with the 'NOT <variable_name> =>' syntax (which needs two look ahead 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   638
 * tokens to be parsed correctly - and bison being LALR(1) only supports one).
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   639
 * The current work around requires flex to completely parse the '<variable_name> =>'
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   640
 * sequence. This sequence includes whitespace and/or comments between the 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   641
 * <variable_name> and the "=>" token.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   642
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   643
 * This flex rule (sendto_identifier_token) uses the whitespace/comment as trailing context,
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   644
 * 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
   645
 * comments.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   646
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   647
 * 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
   648
 * 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
   649
 * construct as trailing context, this definition of comment must not use any
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   650
 * trailing context either.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   651
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   652
 * 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
   653
 * states, so for this particular location, we do NOT support nested comments.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   654
 */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   655
/* 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
   656
 *       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
   657
 *          '(* Testing... ! ***** ******)'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   658
 *       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
   659
 *       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
   660
 *       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
   661
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   662
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
   663
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
   664
asterisk				"*"
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   665
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
   666
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
   667
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   668
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   669
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   670
/* 3.1 Whitespace */
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   671
/* ============== */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   672
/*
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   673
 * Whitespace is clearly defined (see IEC 61131-3 v2, section 2.1.4)
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   674
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   675
 * Whitespace definition includes the newline character.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   676
 * 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   677
 * However, the standard is inconsistent in that in IL the newline character 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   678
 * is considered a token (EOL - end of line). 
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   679
 * In our implementation we therefore have two definitions of whitespace
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   680
 *   - one for ST, that includes the newline character
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   681
 *   - one for IL without the newline character.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   682
 * Additionally, when parsing IL, the newline character is treated as the EOL token.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   683
 * 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
   684
 * some knowledge of the syntax itself.
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   685
 *
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   686
 * NOTE: Our definition of whitespace will only work in ASCII!
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   687
 *
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   688
 * 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
   689
 *         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
   690
 *       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
   691
 *       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
   692
 *       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
   693
 *       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
   694
 *       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
   695
 *       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
   696
 *       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
   697
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   698
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   699
st_whitespace			[ \f\n\r\t\v]*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   700
il_whitespace			[ \f\r\t\v]*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   701
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   702
st_whitespace_or_pragma_or_commentX	({st_whitespace})|({pragma})|({comment})
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   703
il_whitespace_or_pragma_or_commentX	({il_whitespace})|({pragma})|({comment})
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   704
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   705
st_whitespace_or_pragma_or_comment	{st_whitespace_or_pragma_or_commentX}*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   706
il_whitespace_or_pragma_or_comment	{il_whitespace_or_pragma_or_commentX}*
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   707
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   708
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   709
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
   710
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
   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
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   713
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   714
/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   715
/* 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
   716
/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   717
/* 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
   718
 *       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
   719
 *       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
   720
 *       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
   721
 *       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
   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
 *       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
   724
 *       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
   725
 *       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
   726
 *       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
   727
 *       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
   728
 *       [\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
   729
 *       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
   730
 *       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
   731
 *       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
   732
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   733
 *       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
   734
 *       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
   735
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   736
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
   737
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
   738
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
   739
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
   740
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
   741
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   742
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   743
/* 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
   744
/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   745
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
/* 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
   748
/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   749
integer         {digit}((_?{digit})*)
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   750
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   751
/* 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
   752
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
   753
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
   754
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
   755
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
   756
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
   757
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   758
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   759
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
   760
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
   761
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
   762
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
   763
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
   764
/* 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
   765
 * 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
   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
 * 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
   768
 * 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
   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
 * 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
   771
 * 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
   772
 * 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
   773
 * 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
   774
 * 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
   775
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   776
 * 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
   777
 * 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
   778
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   779
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
   780
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   781
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   782
/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   783
/* 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
   784
/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   785
/*
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   786
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
   787
<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
   788
|'$$'
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   789
|'$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
   790
|'$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
   791
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   792
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
   793
	" = 0x22
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   794
	' = 0x27
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   795
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   796
	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
   797
*/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   798
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   799
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
   800
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
   801
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
   802
double_byte_char	(${hex_digit}{hex_digit}{hex_digit}{hex_digit})
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   803
single_byte_char	(${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
   804
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   805
/* WARNING:
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   806
 * 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
   807
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   808
 * 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
   809
 * 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
   810
 * 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
   811
 * 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
   812
 * 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
   813
 * 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
   814
 * 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
   815
 * 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
   816
 * 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
   817
 * 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
   818
 * 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
   819
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   820
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
   821
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
   822
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
   823
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   824
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   825
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
   826
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
   827
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
/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   830
/* 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
   831
/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   832
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
   833
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   834
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   835
/* 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
   836
 *       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
   837
 *       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
   838
 *       definition instead!
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   839
 *
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   840
 *       duration::= ('T' | 'TIME') '#' ['+'|'-'] interval
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   841
 *       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
   842
 *       fixed_point  ::= integer [ '.' integer]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   843
 *       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
   844
 *       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
   845
 *       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
   846
 *       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
   847
 *       milliseconds ::= fixed_point 'ms'
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   848
 * 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   849
 * 
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   850
 *  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
   851
 *       duration ::= ('T' | 'TIME') '#' ['-'] interval
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   852
 *       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
   853
 *       fixed_point  ::= integer [ '.' integer]
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   854
 *       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
   855
 *       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
   856
 *       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
   857
 *       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
   858
 *       milliseconds ::= fixed_point 'ms'
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   859
 */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   860
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   861
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
   862
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
   863
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
   864
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
   865
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   866
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
   867
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
   868
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
   869
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
   870
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
   871
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   872
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
   873
686
9b87606d4c07 Fix processing of TIME literals (submited by Andreas)
Mario de Sousa <msousa@fe.up.pt>
parents: 627
diff changeset
   874
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   875
/* 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
   876
/* 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
   877
 *      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
   878
 *      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
   879
 */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   880
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
   881
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
   882
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   883
/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   884
/* 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
   885
/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   886
/* 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
   887
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   888
location_prefix			[IQM]
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   889
size_prefix			[XBWDL]
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   890
direct_variable_standard	%{location_prefix}({size_prefix}?){integer}((.{integer})*)
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   891
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   892
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   893
/* 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
   894
 * 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
   895
 * 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
   896
 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   897
/* 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
   898
 * 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
   899
 * 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
   900
 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   901
 * 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
   902
 *    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
   903
 *    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
   904
 *    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
   905
 *    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
   906
 *    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
   907
 *    VAR
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   908
 *       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
   909
 *    END_VAR
11
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   910
 *    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
   911
 *    name.
8ce37f36d744 Add support for correct syntax of direct variables.
mario
parents: 9
diff changeset
   912
 */
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   913
/* direct_variable_matplc		%{identifier} */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
   914
/* 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
   915
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
   916
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   917
/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   918
/* 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
   919
/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   920
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
   921
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   922
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   923
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   924
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   925
%%
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   926
	/* 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
   927
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   928
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   929
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   930
	/*****************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   931
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   932
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   933
	/*****   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
   934
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   935
	/*****                                           *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   936
	/*****************************************************/
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
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   940
	/***********************************************************/
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   941
	/* Handle requests sent by bison for flex to change state. */
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   942
	/***********************************************************/
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
   943
	if (get_goto_body_state()) {
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   944
	  yy_push_state(body_state);
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
   945
	  rst_goto_body_state();
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
   946
	}
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
   947
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   948
	if (get_goto_sfc_qualifier_state()) {
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   949
	  yy_push_state(sfc_qualifier_state);
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   950
	  rst_goto_sfc_qualifier_state();
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   951
	}
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   952
86
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   953
	if (get_goto_sfc_priority_state()) {
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   954
	  yy_push_state(sfc_priority_state);
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   955
	  rst_goto_sfc_priority_state();
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   956
	}
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
   957
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   958
	if (get_goto_task_init_state()) {
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   959
	  yy_push_state(task_init_state);
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   960
	  rst_goto_task_init_state();
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   961
	}
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
   962
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   963
	if (get_pop_state()) {
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   964
	  yy_pop_state();
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   965
	  rst_pop_state();
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   966
	}
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   967
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   968
	/***************************/
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   969
	/* Handle the pragmas!     */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
   970
	/***************************/
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   971
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
   972
	/* 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
   973
<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
   974
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
   975
	/* Pragmas sent to syntax analyser (bison) */
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   976
	/* NOTE: In the vardecl_list_state we only process the pragmas between two consecutive VAR .. END_VAR blocks.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   977
	 *       We do not process any pragmas trailing after the last END_VAR. We leave that to the body_state.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   978
	 *       This is because the pragmas are stored in a statement_list or instruction_list (in bison),
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   979
	 *       but these lists must start with the special tokens start_IL_body_token/start_ST_body_token.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   980
	 *       This means that these special tokens must be generated (by the body_state) before processing
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   981
	 *       the pragme => we cannot process the trailing pragmas in the vardecl_list_state state.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   982
	 */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   983
{disable_code_generation_pragma}				return disable_code_generation_pragma_token;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   984
{enable_code_generation_pragma}					return enable_code_generation_pragma_token;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   985
<vardecl_list_state>{disable_code_generation_pragma}/(VAR)	return disable_code_generation_pragma_token; 
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   986
<vardecl_list_state>{enable_code_generation_pragma}/(VAR)	return enable_code_generation_pragma_token;  
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   987
<body_state>{disable_code_generation_pragma}			append_bodystate_buffer(yytext); /* in body state we do not process any tokens, we simply store them for later processing! */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   988
<body_state>{enable_code_generation_pragma}			append_bodystate_buffer(yytext); /* in body state we do not process any tokens, we simply store them for later 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
   989
	/* 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
   990
	/* Note that the <body_state> state is exclusive, so we have to include it here too. */
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   991
<body_state>{pragma}					append_bodystate_buffer(yytext); /* in body state we do not process any tokens, we simply store them for later 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
   992
{pragma}	{/* return the pragmma without the enclosing '{' and '}' */
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
   993
		 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
   994
		 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
   995
		 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
   996
		 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
   997
		}
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
   998
<vardecl_list_state>{pragma}/(VAR) {/* return the pragmma without the enclosing '{' and '}' */
701
562c01f82afb Fix pragma with double bracket token stripping
Laurent Bessard
parents: 637
diff changeset
   999
		 int cut = yytext[1]=='{'?2:1;
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1000
		 yytext[strlen(yytext)-cut] = '\0';
701
562c01f82afb Fix pragma with double bracket token stripping
Laurent Bessard
parents: 637
diff changeset
  1001
		 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
  1002
		 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
  1003
		}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1004
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1005
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
	/* 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
  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_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
  1010
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1011
<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
  1012
			  /* 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
  1013
			  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
  1014
			  /* 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
  1015
			  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
  1016
			  /* 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
  1017
			}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1018
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1019
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1020
<<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
  1021
			       *       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
  1022
			       *       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
  1023
			       *       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
  1024
			       *       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
  1025
			       *       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
  1026
			       *       more END_OF_INPUT tokens.
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1027
			       * 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1028
			       *       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
  1029
			       *       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
  1030
			       *       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
  1031
			       * 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1032
			       *       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
  1033
			       *       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
  1034
			       *       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
  1035
			       * 
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1036
			       *       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
  1037
			       *       bison to close it!
76
ec7799ec929b fixing include bug (only ocured for includes in main program file).
mario
parents: 75
diff changeset
  1038
			       */
ec7799ec929b fixing include bug (only ocured for includes in main program file).
mario
parents: 75
diff changeset
  1039
			  if (include_stack_ptr == 0) {
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1040
			      // fclose(yyin);           // Must not do this!!
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1041
			      // FreeTracking(current_tracking); // Must not do this!!
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1042
			      /* yyterminate() terminates the scanner and returns a 0 to the 
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1043
			       * scanner's  caller, indicating "all done".
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1044
			       *	
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1045
			       * Our syntax parser (written with bison) has the token	
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1046
			       * 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
  1047
			       * we don't explicitly return the token END_OF_INPUT
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1048
			       * calling yyterminate() is equivalent to doing that. 
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
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
			    yyterminate();
737
f6bc5230aadd Fix comments and code alignment
Mario de Sousa <msousa@fe.up.pt>
parents: 686
diff changeset
  1051
			  } else {
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  1052
			    fclose(yyin);
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1053
			    FreeTracking(current_tracking);
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1054
			    --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
  1055
			    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
  1056
			    yy_switch_to_buffer((include_stack[include_stack_ptr]).buffer_state);
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1057
			    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
  1058
			      /* 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
  1059
			       * 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
  1060
			       * 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
  1061
			       * 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
  1062
			       */
286
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
  1063
			    /* 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
  1064
			     *       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
  1065
			     *       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
  1066
			     *       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
  1067
			     *       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
  1068
			     */
a4f4990d5c66 Adding tracking of filename in which token is located.
Mario de Sousa <msousa@fe.up.pt>
parents: 267
diff changeset
  1069
			    /* 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
  1070
			    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
  1071
			    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
  1072
			  }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1073
			}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1074
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1075
<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
  1076
	/* 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
  1077
<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
  1078
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1079
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1080
	/*********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1081
	/* 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
  1082
	/*********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1083
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1084
	/* 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
  1085
<INITIAL>{
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1086
FUNCTION{st_whitespace} 		if (get_preparse_state()) BEGIN(get_pou_name_state); else {BEGIN(header_state);/* printf("\nChanging to header_state\n"); */} return FUNCTION;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1087
FUNCTION_BLOCK{st_whitespace}		if (get_preparse_state()) BEGIN(get_pou_name_state); else {BEGIN(header_state);/* printf("\nChanging to header_state\n"); */} return FUNCTION_BLOCK;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1088
PROGRAM{st_whitespace}			if (get_preparse_state()) BEGIN(get_pou_name_state); else {BEGIN(header_state);/* printf("\nChanging to header_state\n"); */} return PROGRAM;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1089
CONFIGURATION{st_whitespace}		if (get_preparse_state()) BEGIN(get_pou_name_state); else {BEGIN(config_state);/* printf("\nChanging to config_state\n"); */} return CONFIGURATION;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1090
}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1091
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1092
<get_pou_name_state>{
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1093
{identifier}			BEGIN(ignore_pou_state); yylval.ID=strdup(yytext); return identifier_token;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1094
.				BEGIN(ignore_pou_state); unput_text(0);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1095
}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1096
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1097
<ignore_pou_state>{
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1098
END_FUNCTION			unput_text(0); BEGIN(INITIAL);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1099
END_FUNCTION_BLOCK		unput_text(0); BEGIN(INITIAL);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1100
END_PROGRAM			unput_text(0); BEGIN(INITIAL);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1101
END_CONFIGURATION		unput_text(0); BEGIN(INITIAL);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1102
.|\n				{}/* Ignore text inside POU! (including the '\n' character!)) */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1103
}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1104
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1105
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1106
	/* header_state -> (vardecl_list_state) */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1107
	/* NOTE: This transition assumes that all POUs with code (Function, FB, and Program) will always contain
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1108
	 *       at least one VAR_XXX block.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1109
	 *      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
  1110
	 *      - 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
  1111
	 *        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
  1112
	 *        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
  1113
	 *      - 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
  1114
	 *        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
  1115
	 *        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
  1116
	 *      - 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
  1117
	 *        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
  1118
	 *        construct!
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1119
	 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1120
	 *       All the above means that we needn't worry about PROGRAMs, FUNCTIONs or
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1121
	 *       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
  1122
	 *       If the code has an error, and no VAR_END before the body, we will simply
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1123
	 *       continue in the <vardecl_state> state, until 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
  1124
	 *       or PROGAM.
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1125
	 * 
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1126
	 * WARNING: From 2016-05 (May 2016) onwards, matiec supports a non-standard option in which a Function
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1127
	 *          may be declared with no Input, Output or IN_OUT variables. This means that the above 
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1128
	 *          assumption is no longer valid.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1129
	 *          To make things simpler (i.e. so we do not need to change the transition conditions in the flex state machine),
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1130
	 *          when using this non-standard extension matiec requires that Functions must include at least one 
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1131
	 *          VAR .. END_VAR block. This implies that the above assumption remains valid!
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1132
	 *          This limitation of requiring a VAR .. END_VAR block is not really very limiting, as a function
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1133
	 *          with no input and output parameters will probably need to do some 'work', and for that it will
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1134
	 *          probably need some local variables declared in a VAR .. END_VAR block.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1135
	 *          Note however that in the extreme it might make sense to have a function with no variables whatsoever
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1136
	 *          (e.g.: a function that only calls other functions that all return VOID - another non standard extension!).
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1137
	 *          For now we do not consider this!!
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1138
	 */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1139
<header_state>{
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1140
VAR				| /* execute the next rule's action, i.e. fall-through! */
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1141
VAR_INPUT			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1142
VAR_OUTPUT			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1143
VAR_IN_OUT			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1144
VAR_EXTERNAL			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1145
VAR_GLOBAL			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1146
VAR_TEMP			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1147
VAR_CONFIG			|
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1148
VAR_ACCESS			unput_text(0); /* printf("\nChanging to vardecl_list_state\n") */; BEGIN(vardecl_list_state);
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1149
}
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1150
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1151
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1152
	/* vardecl_list_state -> (vardecl_state | body_state | INITIAL) */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1153
<vardecl_list_state>{
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1154
VAR_INPUT			| /* execute the next rule's action, i.e. fall-through! */
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1155
VAR_OUTPUT			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1156
VAR_IN_OUT			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1157
VAR_EXTERNAL			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1158
VAR_GLOBAL			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1159
VAR_TEMP			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1160
VAR_CONFIG			|
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1161
VAR_ACCESS			|
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1162
VAR				unput_text(0); yy_push_state(vardecl_state);
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1163
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1164
END_FUNCTION			unput_text(0); BEGIN(INITIAL);
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1165
END_FUNCTION_BLOCK		unput_text(0); BEGIN(INITIAL);
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1166
END_PROGRAM			unput_text(0); BEGIN(INITIAL);
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1167
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1168
.				unput_text(0); yy_push_state(body_state); //printf("\nChanging to body_state\n");/* anything else, just change to body_state! */
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1169
}
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1170
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1171
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1172
	/* vardecl_list_state -> pop to $previous_state (vardecl_list_state) */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1173
<vardecl_state>{
948
543f8319bdf8 Fix main state machine in flex (states were being pushed without being poped from the stack)
mjsousa
parents: 934
diff changeset
  1174
END_VAR				yy_pop_state(); return END_VAR; /* pop back to vardecl_list_state */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1175
}
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1176
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1177
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1178
	/* body_state -> (il_state | st_state | sfc_state) */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1179
<body_state>{
1020
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1180
{st_whitespace}			{/* In body state we do not process any tokens,
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1181
				  * we simply store them for later processing!
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1182
				  * NOTE: all whitespace in the begining
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1183
				  * of body_state must be removed so we can
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1184
				  * detect ':=' in the beginning of TRANSACTION
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1185
				  * conditions preceded by whitespace.
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1186
				  * => only add to bodystate_buffer when not in beginning.
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1187
				  */
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1188
				  if (!isempty_bodystate_buffer()) 
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1189
				    append_bodystate_buffer(yytext); 
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1190
				}
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1191
	/* 'INITIAL_STEP' always used in beginning of SFCs !! */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1192
INITIAL_STEP			{ if (isempty_bodystate_buffer())	{unput_text(0); BEGIN(sfc_state);}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1193
				  else					{append_bodystate_buffer(yytext);}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1194
				}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1195
 
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1196
	/* ':=', at the very beginning of a 'body', occurs only in transitions and not Function, FB, or Program bodies! */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1197
:=				{ if (isempty_bodystate_buffer())	{unput_text(0); BEGIN(st_state);} /* We do _not_ return a start_ST_body_token here, as bison does not expect it! */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1198
				  else				 	{append_bodystate_buffer(yytext);}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1199
				}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1200
 
1031
ce026aee03e0 fix compilation of SFC transitions written in IL (compiler was entering endless loop)
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1020
diff changeset
  1201
	/* check if ';' occurs before an END_FUNCTION, END_FUNCTION_BLOCK, END_PROGRAM, END_ACTION or END_TRANSITION. (If true => we are parsing ST; If false => parsing IL). */
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1202
END_ACTION			| /* execute the next rule's action, i.e. fall-through! */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1203
END_FUNCTION			|
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1204
END_FUNCTION_BLOCK		|
1031
ce026aee03e0 fix compilation of SFC transitions written in IL (compiler was entering endless loop)
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 1020
diff changeset
  1205
END_TRANSITION   		|
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1206
END_PROGRAM			{ append_bodystate_buffer(yytext); unput_bodystate_buffer(); BEGIN(il_state); /*printf("returning start_IL_body_token\n");*/ return start_IL_body_token;}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1207
.|\n				{ append_bodystate_buffer(yytext);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1208
				  if (strcmp(yytext, ";") == 0)
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1209
				    {unput_bodystate_buffer(); BEGIN(st_state); /*printf("returning start_ST_body_token\n");*/ return start_ST_body_token;}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1210
				}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1211
	/* The following rules are not really necessary. They just make compilation faster in case the ST Statement List starts with one fot he following... */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1212
RETURN				| /* execute the next rule's action, i.e. fall-through! */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1213
IF				|
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1214
CASE				|
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1215
FOR				|
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1216
WHILE				|
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1217
EXIT				|
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1218
REPEAT				{ if (isempty_bodystate_buffer())	{unput_text(0); BEGIN(st_state); return start_ST_body_token;}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1219
				  else				 	{append_bodystate_buffer(yytext);}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1220
				}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1221
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1222
}	/* end of body_state lexical parser */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1223
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1224
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1225
	/* (il_state | st_state) -> pop to $previous_state (vardecl_list_state or sfc_state) */
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1226
<il_state,st_state>{
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1227
END_FUNCTION		yy_pop_state(); unput_text(0);
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1228
END_FUNCTION_BLOCK	yy_pop_state(); unput_text(0);
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1229
END_PROGRAM		yy_pop_state(); unput_text(0);
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1230
END_TRANSITION		yy_pop_state(); unput_text(0);
6
94741aa26423 Changing from decl_state directly to sfc_state
mario
parents: 4
diff changeset
  1231
END_ACTION		yy_pop_state(); unput_text(0);
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1232
}
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1233
868
23f271534a7c Fix the state machine that became broken 2 commits ago (when adding support for nested comments)
mjsousa
parents: 867
diff changeset
  1234
	/* sfc_state -> pop to $previous_state (vardecl_list_state or sfc_state) */
4
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1235
<sfc_state>{
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1236
END_FUNCTION		yy_pop_state(); unput_text(0);
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1237
END_FUNCTION_BLOCK	yy_pop_state(); unput_text(0);
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1238
END_PROGRAM		yy_pop_state(); unput_text(0);
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1239
}
0d71456312ab stack overflow problem corrected
lbessard
parents: 3
diff changeset
  1240
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1241
	/* 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
  1242
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
  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
	/***************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1247
	/* 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
  1248
	/***************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1249
	/* 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
  1250
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1251
	/* The whitespace */
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1252
<INITIAL,header_state,config_state,vardecl_list_state,vardecl_state,st_state,sfc_state,task_init_state,sfc_qualifier_state>{st_whitespace}	/* Eat any whitespace */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1253
<il_state>{il_whitespace}		/* Eat any whitespace */
1020
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1254
 /* NOTE: Due to the need of having the following rule have higher priority,
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1255
  *        the following rule was moved to an earlier position in this file.
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1256
<body_state>{st_whitespace}		{...}
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  1257
 */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1258
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1259
	/* The comments */
952
e984cfdf3b10 Add a pre-parsing phase to stage1_2 (allows source code that references POUs and datatypes before they are declared)
mjsousa
parents: 948
diff changeset
  1260
<get_pou_name_state,ignore_pou_state,body_state,vardecl_list_state>{comment_beg}		yy_push_state(comment_state);
867
a435684a5223 Add option to control support for nested comments (default is off, as defined in IEC 61131-3 v2)
mjsousa
parents: 866
diff changeset
  1261
{comment_beg}						yy_push_state(comment_state);
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1262
<comment_state>{
867
a435684a5223 Add option to control support for nested comments (default is off, as defined in IEC 61131-3 v2)
mjsousa
parents: 866
diff changeset
  1263
{comment_beg}						{if (get_opt_nested_comments()) yy_push_state(comment_state);}
a435684a5223 Add option to control support for nested comments (default is off, as defined in IEC 61131-3 v2)
mjsousa
parents: 866
diff changeset
  1264
{comment_end}						yy_pop_state();
a435684a5223 Add option to control support for nested comments (default is off, as defined in IEC 61131-3 v2)
mjsousa
parents: 866
diff changeset
  1265
.							/* Ignore text inside comment! */
a435684a5223 Add option to control support for nested comments (default is off, as defined in IEC 61131-3 v2)
mjsousa
parents: 866
diff changeset
  1266
\n							/* Ignore text inside comment! */
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1267
}
267
0a1204bcc9af starting to add proper header file with declaration of standard functions
Mario de Sousa <msousa@fe.up.pt>
parents: 264
diff changeset
  1268
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1269
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1270
	/* 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
  1271
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1272
	/* 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
  1273
	 *       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
  1274
	 *       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
  1275
	 *       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
  1276
	 *       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
  1277
	 *       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
  1278
	 *       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
  1279
	 *       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
  1280
	 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1281
	 *       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
  1282
	 *       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
  1283
	 *       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
  1284
	 *
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1285
	 *       However, we have a dilema! Should we here also check for
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1286
	 *       prev_declared_derived_function_name_token?
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1287
	 *       If we do, then the 'MOD' default library function (defined in
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1288
	 *       the standard) will always be returned as a function name, and
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1289
	 *       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
  1290
	 *       in the following ST expression 'X := Y MOD Z;' !
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1291
	 *       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
  1292
	 *       as a funtion as in 'X := MOD(Y, Z);'
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1293
	 *       We solve this by NOT testing for function names here, and
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1294
	 *       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
  1295
	 */
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1296
	/* NOTE: The following code has been commented out as most users do not want matiec
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1297
	 *       to allow the use of 'R1', 'IN' ... IL operators as identifiers, 
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1298
	 *       even though a literal reading of the standard allows this.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1299
	 *       We could add this as a commadnd line option, but it is not yet done.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1300
	 *       For now we just comment out the code, but leave it the commented code
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1301
	 *       in so we can re-activate quickly (without having to go through old commits
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1302
	 *       in the mercurial repository to figure out the missing code!
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1303
	 */
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1304
 /*
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1305
{identifier} 	{int token = get_identifier_token(yytext);
81
de518eb7bc74 removing debug messages left by mistake in previous commit.
mario
parents: 80
diff changeset
  1306
		 // 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
  1307
		 if ((token == prev_declared_variable_name_token) ||
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1308
//		     (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
  1309
		     (token == prev_declared_fb_name_token)) {
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1310
		 // if (token != identifier_token)
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1311
		 // * NOTE: if we replace the above uncommented conditions with
13
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1312
                  *       the simple test of (token != identifier_token), then 
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1313
                  *       'MOD' et al must be removed from the 
77174ccc5471 Many major changes to support SFC!
mario
parents: 11
diff changeset
  1314
                  *       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
  1315
		  * //
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1316
		   yylval.ID=strdup(yytext);
81
de518eb7bc74 removing debug messages left by mistake in previous commit.
mario
parents: 80
diff changeset
  1317
		   // 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
  1318
		   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
  1319
		 }
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1320
		 // 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
  1321
		 // 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
  1322
		 REJECT;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1323
		}
83
aeb7e0e53855 commenting out code no longer required. To be deleted later.
mario
parents: 82
diff changeset
  1324
 */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1325
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1326
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1327
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1328
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1329
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1330
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1331
	/*****   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
  1332
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1333
	/*****                                            *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1334
	/******************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1335
	/******************************************************/
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
934
2a42a68f4b59 Turn support of derefencing operator '^' an option (default is not supported).
mjsousa
parents: 933
diff changeset
  1339
REF	{if (get_opt_ref_standard_extensions()) return REF;        else{REJECT;}}		/* Keyword in IEC 61131-3 v3 */
2a42a68f4b59 Turn support of derefencing operator '^' an option (default is not supported).
mjsousa
parents: 933
diff changeset
  1340
DREF	{if (get_opt_ref_standard_extensions()) return DREF;       else{REJECT;}}		/* Keyword in IEC 61131-3 v3 */
2a42a68f4b59 Turn support of derefencing operator '^' an option (default is not supported).
mjsousa
parents: 933
diff changeset
  1341
REF_TO	{if (get_opt_ref_standard_extensions()) return REF_TO;     else{REJECT;}}		/* Keyword in IEC 61131-3 v3 */
2a42a68f4b59 Turn support of derefencing operator '^' an option (default is not supported).
mjsousa
parents: 933
diff changeset
  1342
NULL	{if (get_opt_ref_standard_extensions()) return NULL_token; else{REJECT;}}		/* Keyword in IEC 61131-3 v3 */
873
dea39ef02847 Add limited support for the REF() operator (defined in v3 of IEC 61131-3)
mjsousa
parents: 869
diff changeset
  1343
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1344
EN	return EN;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1345
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
  1346
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1347
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1348
	/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1349
	/* 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
  1350
	/******************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1351
TRUE		return TRUE;		/* Keyword */
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1352
BOOL#1  	return boolean_true_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1353
BOOL#TRUE	return boolean_true_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1354
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
  1355
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
  1356
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1357
FALSE		return FALSE;		/* Keyword */
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1358
BOOL#0  	return boolean_false_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1359
BOOL#FALSE  	return boolean_false_literal_token;
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1360
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
  1361
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
  1362
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1363
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1364
	/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1365
	/* 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
  1366
	/************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1367
t#		return T_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1368
T#		return T_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1369
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
  1370
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
	/* 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
  1374
	/************************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1375
TIME_OF_DAY	return TIME_OF_DAY;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1376
TOD		return TIME_OF_DAY;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1377
DATE		return DATE;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1378
d#		return D_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1379
D#		return D_SHARP;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1380
DATE_AND_TIME	return DATE_AND_TIME;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1381
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
  1382
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1383
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1384
	/***********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1385
	/* 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
  1386
	/***********************************/
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1387
BOOL		return BOOL;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1388
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1389
BYTE		return BYTE;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1390
WORD		return WORD;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1391
DWORD		return DWORD;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1392
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
  1393
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1394
SINT		return SINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1395
INT		return INT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1396
DINT		return DINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1397
LINT		return LINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1398
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1399
USINT		return USINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1400
UINT		return UINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1401
UDINT		return UDINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1402
ULINT		return ULINT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1403
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1404
REAL		return REAL;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1405
LREAL		return LREAL;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1406
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1407
WSTRING		return WSTRING;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1408
STRING		return STRING;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1409
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1410
TIME		return TIME;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1411
DATE		return DATE;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1412
DT		return DT;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1413
TOD		return TOD;		/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1414
DATE_AND_TIME	return DATE_AND_TIME;	/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1415
TIME_OF_DAY	return TIME_OF_DAY;	/* Keyword (Data Type) */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1416
1014
a61f8f58f612 Add support for non-standard VOID datatype. May ony be used to define functions returning VOID.
mjsousa
parents: 1013
diff changeset
  1417
					/* A non-standard extension! */
a61f8f58f612 Add support for non-standard VOID datatype. May ony be used to define functions returning VOID.
mjsousa
parents: 1013
diff changeset
  1418
VOID		{if (runtime_options.allow_void_datatype) {return VOID;}          else {REJECT;}} 
a61f8f58f612 Add support for non-standard VOID datatype. May ony be used to define functions returning VOID.
mjsousa
parents: 1013
diff changeset
  1419
a61f8f58f612 Add support for non-standard VOID datatype. May ony be used to define functions returning VOID.
mjsousa
parents: 1013
diff changeset
  1420
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1421
	/*****************************************************************/
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1422
	/* Keywords defined in "Safety Software Technical Specification" */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1423
	/*****************************************************************/
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1424
        /* 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1425
         * NOTE: The following keywords are define in 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1426
         *       "Safety Software Technical Specification,
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1427
         *        Part 1: Concepts and Function Blocks,  
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1428
         *        Version 1.0 – Official Release"
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1429
         *        written by PLCopen - Technical Committee 5
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1430
         *
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1431
         *        We only support these extensions and keywords
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1432
         *        if the apropriate command line option is given.
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1433
         */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1434
SAFEBOOL	     {if (get_opt_safe_extensions()) {return SAFEBOOL;}          else {REJECT;}} 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1435
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1436
SAFEBYTE	     {if (get_opt_safe_extensions()) {return SAFEBYTE;}          else {REJECT;}} 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1437
SAFEWORD	     {if (get_opt_safe_extensions()) {return SAFEWORD;}          else {REJECT;}} 
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1438
SAFEDWORD	     {if (get_opt_safe_extensions()) {return SAFEDWORD;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1439
SAFELWORD	     {if (get_opt_safe_extensions()) {return SAFELWORD;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1440
               
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1441
SAFEREAL	     {if (get_opt_safe_extensions()) {return SAFESINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1442
SAFELREAL    	     {if (get_opt_safe_extensions()) {return SAFELREAL;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1443
                  
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1444
SAFESINT	     {if (get_opt_safe_extensions()) {return SAFESINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1445
SAFEINT	             {if (get_opt_safe_extensions()) {return SAFEINT;}           else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1446
SAFEDINT	     {if (get_opt_safe_extensions()) {return SAFEDINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1447
SAFELINT             {if (get_opt_safe_extensions()) {return SAFELINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1448
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1449
SAFEUSINT            {if (get_opt_safe_extensions()) {return SAFEUSINT;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1450
SAFEUINT             {if (get_opt_safe_extensions()) {return SAFEUINT;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1451
SAFEUDINT            {if (get_opt_safe_extensions()) {return SAFEUDINT;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1452
SAFEULINT            {if (get_opt_safe_extensions()) {return SAFEULINT;}         else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1453
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1454
 /* 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
  1455
 /*  so it is best not to support them at all... */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1456
 /*
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1457
SAFEWSTRING          {if (get_opt_safe_extensions()) {return SAFEWSTRING;}       else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1458
SAFESTRING           {if (get_opt_safe_extensions()) {return SAFESTRING;}        else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1459
 */
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1460
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1461
SAFETIME             {if (get_opt_safe_extensions()) {return SAFETIME;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1462
SAFEDATE             {if (get_opt_safe_extensions()) {return SAFEDATE;}          else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1463
SAFEDT               {if (get_opt_safe_extensions()) {return SAFEDT;}            else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1464
SAFETOD              {if (get_opt_safe_extensions()) {return SAFETOD;}           else{REJECT;}}
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
diff changeset
  1465
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
  1466
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
  1467
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1468
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1469
	/* 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
  1470
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1471
	/* 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
  1472
	/* 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
  1473
	 * 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
  1474
	 */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1475
ANY		return ANY;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1476
ANY_DERIVED	return ANY_DERIVED;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1477
ANY_ELEMENTARY	return ANY_ELEMENTARY;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1478
ANY_MAGNITUDE	return ANY_MAGNITUDE;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1479
ANY_NUM		return ANY_NUM;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1480
ANY_REAL	return ANY_REAL;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1481
ANY_INT		return ANY_INT;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1482
ANY_BIT		return ANY_BIT;		/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1483
ANY_STRING	return ANY_STRING;	/* Keyword (Data Type) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1484
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
  1485
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 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
  1489
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1490
":="		return ASSIGN;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1491
".."		return DOTDOT;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1492
TYPE		return TYPE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1493
END_TYPE	return END_TYPE;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1494
ARRAY		return ARRAY;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1495
OF		return OF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1496
STRUCT		return STRUCT;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1497
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
  1498
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1499
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1500
	/*********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1501
	/* 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
  1502
	/*********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1503
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1504
	/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1505
	/* 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
  1506
	/******************************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1507
VAR_INPUT	return VAR_INPUT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1508
VAR_OUTPUT	return VAR_OUTPUT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1509
VAR_IN_OUT	return VAR_IN_OUT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1510
VAR_EXTERNAL	return VAR_EXTERNAL;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1511
VAR_GLOBAL	return VAR_GLOBAL;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1512
END_VAR		return END_VAR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1513
RETAIN		return RETAIN;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1514
NON_RETAIN	return NON_RETAIN;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1515
R_EDGE		return R_EDGE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1516
F_EDGE		return F_EDGE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1517
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
  1518
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1519
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1520
	/***********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1521
	/* 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
  1522
	/***********************/
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1523
	/* Note: The following END_FUNCTION rule includes a BEGIN(INITIAL); command.
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1524
	 *       This is necessary in case the input program being parsed has syntax errors that force
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1525
	 *       flex's main state machine to never change to the il_state or the st_state
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1526
	 *       after changing to the body_state.
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1527
	 *       Ths BEGIN(INITIAL) command forces the flex state machine to re-synchronise with 
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1528
	 *       the input stream even in the presence of buggy code!
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1529
	 */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1530
FUNCTION			return FUNCTION;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1531
END_FUNCTION	BEGIN(INITIAL);	return END_FUNCTION;			/* Keyword */  /* see Note above */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1532
VAR				return VAR;				/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1533
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
  1534
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1535
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1536
	/*****************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1537
	/* 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
  1538
	/*****************************/
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1539
	/* Note: The following END_FUNCTION_BLOCK rule includes a BEGIN(INITIAL); command.
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1540
	 *       This is necessary in case the input program being parsed has syntax errors that force
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1541
	 *       flex's main state machine to never change to the il_state or the st_state
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1542
	 *       after changing to the body_state.
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1543
	 *       Ths BEGIN(INITIAL) command forces the flex state machine to re-synchronise with 
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1544
	 *       the input stream even in the presence of buggy code!
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1545
	 */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1546
FUNCTION_BLOCK				return FUNCTION_BLOCK;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1547
END_FUNCTION_BLOCK	BEGIN(INITIAL);	return END_FUNCTION_BLOCK;	/* Keyword */  /* see Note above */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1548
VAR_TEMP				return VAR_TEMP;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1549
VAR					return VAR;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1550
NON_RETAIN				return NON_RETAIN;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1551
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
  1552
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1553
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1554
	/**********************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1555
	/* 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
  1556
	/**********************/
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1557
	/* Note: The following END_PROGRAM rule includes a BEGIN(INITIAL); command.
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  1558
	 *       This is necessary in case the input program being parsed has syntax errors that force
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1559
	 *       flex's main state machine to never change to the il_state or the st_state
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1560
	 *       after changing to the body_state.
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1561
	 *       Ths BEGIN(INITIAL) command forces the flex state machine to re-synchronise with 
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1562
	 *       the input stream even in the presence of buggy code!
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1563
	 */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1564
PROGRAM				return PROGRAM;				/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1565
END_PROGRAM	BEGIN(INITIAL);	return END_PROGRAM;			/* Keyword */  /* see Note above */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1566
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1567
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1568
	/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1569
	/* 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
  1570
	/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1571
	/* 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
  1572
	.* 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
  1573
	 * 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
  1574
	 * 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
  1575
	 */
1
5d893a68be6e Changes made since Mario visit at LOLITECH. Thanks again !
etisserant
parents: 0
diff changeset
  1576
	 
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1577
ACTION		return ACTION;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1578
END_ACTION	return END_ACTION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1579
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1580
TRANSITION	return TRANSITION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1581
END_TRANSITION	return END_TRANSITION;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1582
FROM		return FROM;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1583
TO		return TO;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1584
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1585
INITIAL_STEP	return INITIAL_STEP;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1586
STEP		return STEP;			/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1587
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
  1588
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1589
	/* 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
  1590
	 * 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
  1591
	 * 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
  1592
	 */
86
1988bf1634da Adding support for use of PRIORITY as identifier inside SFC.
mario
parents: 84
diff changeset
  1593
<sfc_priority_state>PRIORITY	return PRIORITY;
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1594
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1595
<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
  1596
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
  1597
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
  1598
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
  1599
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
  1600
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
  1601
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
  1602
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
  1603
P0		return P0;
e7caa7d32ef5 Adding support for P0 and P1 qualifiers and fixing code generated for SL qualifier
Laurent Bessard
parents: 616
diff changeset
  1604
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
  1605
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
  1606
S		return S;
1
5d893a68be6e Changes made since Mario visit at LOLITECH. Thanks again !
etisserant
parents: 0
diff changeset
  1607
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1608
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1609
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1610
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1611
	/* 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
  1612
	/********************************/
1010
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1613
	/* Note: The following END_CONFIGURATION rule will never get to be used, as we have
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1614
	 *       another identical rule above (closer to the rules handling the transitions
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1615
	 *       of the main state machine) that will always execute before this one.
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1616
	 * Note: The following END_CONFIGURATION rule includes a BEGIN(INITIAL); command.
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1617
	 *       This is nt strictly necessary, but I place it here so it follwos the same
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1618
	 *       pattern used in END_FUNCTION, END_PROGRAM, and END_FUNCTION_BLOCK
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1619
	 */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1620
CONFIGURATION				return CONFIGURATION;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1621
END_CONFIGURATION	BEGIN(INITIAL); return END_CONFIGURATION;	/* Keyword */   /* see 2 Notes above! */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1622
TASK					return TASK;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1623
RESOURCE				return RESOURCE;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1624
ON					return ON;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1625
END_RESOURCE				return END_RESOURCE;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1626
VAR_CONFIG				return VAR_CONFIG;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1627
VAR_ACCESS				return VAR_ACCESS;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1628
END_VAR					return END_VAR;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1629
WITH					return WITH;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1630
PROGRAM					return PROGRAM;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1631
RETAIN					return RETAIN;			/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1632
NON_RETAIN				return NON_RETAIN;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1633
READ_WRITE				return READ_WRITE;		/* Keyword */
242907849850 Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
mjsousa
parents: 952
diff changeset
  1634
READ_ONLY				return READ_ONLY;		/* Keyword */
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1635
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1636
	/* 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
  1637
	 * 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
  1638
	 * 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
  1639
	 */
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1640
<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
  1641
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
  1642
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
  1643
INTERVAL		return INTERVAL;
74
85af9521bf63 fixing identifier issues of PRIORITY, SINGLE, and INTERVAL
mario
parents: 73
diff changeset
  1644
}
0
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
	/* 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
  1648
	/***********************************/
3
38850ee685e6 ST and IL parsing added into flex-bison analyser
lbessard
parents: 1
diff changeset
  1649
<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
  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
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1652
	/*******************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1653
	/* 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
  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
	/* 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
  1656
	 *       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
  1657
	 *       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
  1658
	 *       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
  1659
	 *       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
  1660
	 *       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
  1661
	 *       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
  1662
	 *       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
  1663
	 *       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
  1664
	 *       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
  1665
	 *       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
  1666
	 *       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
  1667
	 *       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
  1668
	 *       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
  1669
	 *       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
  1670
	 */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1671
 /* 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
  1672
 /* They are also keywords! */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1673
AND		return AND;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1674
MOD		return MOD;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1675
OR		return OR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1676
XOR		return XOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1677
NOT		return NOT;		/* Keyword */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1678
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1679
 /* The following tokens clash with Standard Functions */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1680
 /* They are keywords because they are a function name */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1681
<il_state>{
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1682
ADD		return ADD;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1683
DIV		return DIV;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1684
EQ		return EQ;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1685
GE		return GE;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1686
GT		return GT;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1687
LE		return LE;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1688
LT		return LT;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1689
MUL		return MUL;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1690
NE		return NE;		/* Keyword (Standard Function) */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1691
SUB		return SUB;		/* Keyword (Standard Function) */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1692
}
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1693
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1694
 /* The following tokens clash with SFC action qualifiers */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1695
 /* They are not keywords! */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1696
<il_state>{
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1697
S		return S;
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1698
R		return R;
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1699
}
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1700
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1701
 /* The following tokens clash with ST expression operators */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1702
&		return AND2;		/* NOT a Delimiter! */
68
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1703
b0a43002dcac Adding basic error checking.
mario
parents: 58
diff changeset
  1704
 /* The following tokens have no clashes */
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1705
 /* They are not keywords! */
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1706
<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
  1707
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
  1708
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
  1709
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
  1710
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
  1711
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
  1712
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
  1713
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
  1714
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
  1715
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
  1716
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
  1717
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
  1718
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
  1719
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
  1720
&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
  1721
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
  1722
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
  1723
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
  1724
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
  1725
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
  1726
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
  1727
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
  1728
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
  1729
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
  1730
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
  1731
JMPCN		return JMPCN;
73
0e623bbdee95 fixing infinite error loops at library level, and ...
mario
parents: 72
diff changeset
  1732
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1733
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
	/* 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
  1736
	/***********************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1737
"**"		return OPER_EXP;	/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1738
"<>"		return OPER_NE;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1739
">="		return OPER_GE;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1740
"<="		return OPER_LE;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1741
&		return AND2;		/* NOT a Delimiter! */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1742
AND		return AND;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1743
XOR		return XOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1744
OR		return OR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1745
NOT		return NOT;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1746
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
  1747
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1748
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1749
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1750
	/* 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
  1751
	/*****************************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1752
:=		return ASSIGN;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1753
=>		return SENDTO;		/* Delimiter */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1754
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
  1755
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1756
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1757
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1758
	/* 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
  1759
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1760
IF		return IF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1761
THEN		return THEN;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1762
ELSIF		return ELSIF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1763
ELSE		return ELSE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1764
END_IF		return END_IF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1765
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1766
CASE		return CASE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1767
OF		return OF;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1768
ELSE		return ELSE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1769
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
  1770
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1771
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1772
	/********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1773
	/* 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
  1774
	/********************************/
82
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1775
FOR		return FOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1776
TO		return TO;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1777
BY		return BY;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1778
DO		return DO;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1779
END_FOR		return END_FOR;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1780
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1781
WHILE		return WHILE;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1782
DO		return DO;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1783
END_WHILE	return END_WHILE;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1784
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1785
REPEAT		return REPEAT;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1786
UNTIL		return UNTIL;		/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1787
END_REPEAT	return END_REPEAT;	/* Keyword */
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1788
2b6e9eeeff2c Adding some comments.
mario
parents: 81
diff changeset
  1789
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
  1790
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1791
257
90782e241346 Huge change.
Mario de Sousa <msousa@fe.up.pt>
parents: 177
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
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
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1798
	/********************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1799
	/*****                                              *****/
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
	/*****  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
  1802
	/*****                                              *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1803
	/*****                                              *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1804
	/********************************************************/
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
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1808
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1809
	/********************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1810
	/* 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
  1811
	/********************************************/
175
dadda1b5401e Adding support for checking direct variable declared before using
lbessard
parents: 152
diff changeset
  1812
{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
  1813
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1814
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1815
	/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1816
	/* 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
  1817
	/******************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1818
{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
  1819
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1820
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1821
	/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1822
	/* 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
  1823
	/************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1824
{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
  1825
{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
  1826
{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
  1827
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1828
<time_literal_state>{
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1829
{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
  1830
{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
  1831
{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
  1832
{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
  1833
{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
  1834
{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
  1835
{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
  1836
{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
  1837
{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
  1838
{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
  1839
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1840
_			/* 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
  1841
\#			{/*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
  1842
.			{/*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
  1843
\n			{ERROR;}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  1844
}
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1845
	/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1846
	/* 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
  1847
	/*******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1848
{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
  1849
{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
  1850
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1851
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1852
	/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1853
	/* 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
  1854
	/******************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1855
{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
  1856
{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
  1857
{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
  1858
{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
  1859
{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
  1860
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1861
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1862
	/*****************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1863
	/* 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
  1864
	/*****************************************/
866
c8c48ab075e0 Add support for nested comments
mjsousa
parents: 793
diff changeset
  1865
<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
  1866
<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
  1867
{identifier} 				{yylval.ID=strdup(yytext);
75
0e381bdb8888 Fixing handling of task initialisation.
mario
parents: 74
diff changeset
  1868
					 // 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
  1869
					 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
  1870
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1871
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1872
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1873
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1874
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1875
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1876
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1877
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1878
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1879
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1880
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1881
	/*****   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
  1882
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1883
	/*****                                      *****/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1884
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1885
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1886
	/************************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1887
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1888
	/* 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
  1889
	 *
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1890
	 *  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
  1891
	 */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1892
.	{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
  1893
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
%%
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1896
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1897
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1898
/*************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1899
/* Tracking Functions... */
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1900
/*************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1901
880
599e88d12f9a Track of line number correctly when input file has code with very long lines.
mjsousa
parents: 879
diff changeset
  1902
#define MAX_LINE_LENGTH 1024
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1903
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1904
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
  1905
  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
  1906
  new_env->eof = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1907
  new_env->lineNumber = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1908
  new_env->currentChar = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1909
  new_env->lineLength = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1910
  new_env->currentTokenStart = 0;
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1911
  new_env->buffer = (char*)malloc(MAX_LINE_LENGTH);
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1912
  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
  1913
  return new_env;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1914
}
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1915
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1916
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1917
void FreeTracking(tracking_t *tracking) {
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1918
  free(tracking->buffer);
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1919
  delete tracking;
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1920
}
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1921
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1922
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1923
/* 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
  1924
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
  1925
  char *p;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1926
  
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1927
  if (  current_tracking->eof  )
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1928
    return 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1929
  
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1930
  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
  1931
    current_tracking->currentChar = 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1932
    current_tracking->currentTokenStart = 1;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1933
    current_tracking->eof = false;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1934
    
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  1935
    p = fgets(current_tracking->buffer, MAX_LINE_LENGTH, current_tracking->in_file);
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1936
    if (  p == NULL  ) {
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1937
      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
  1938
        return 0;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1939
      current_tracking->eof = true;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1940
      return 0;
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
    current_tracking->lineLength = strlen(current_tracking->buffer);
880
599e88d12f9a Track of line number correctly when input file has code with very long lines.
mjsousa
parents: 879
diff changeset
  1944
    
599e88d12f9a Track of line number correctly when input file has code with very long lines.
mjsousa
parents: 879
diff changeset
  1945
    /* only increment line number if the buffer was big enough to read the whole line! */
599e88d12f9a Track of line number correctly when input file has code with very long lines.
mjsousa
parents: 879
diff changeset
  1946
    char last_char = current_tracking->buffer[current_tracking->lineLength - 1];
599e88d12f9a Track of line number correctly when input file has code with very long lines.
mjsousa
parents: 879
diff changeset
  1947
    if (('\n' == last_char) || ('\r' == last_char))  // '\r' ---> CR, '\n'  ---> LF
599e88d12f9a Track of line number correctly when input file has code with very long lines.
mjsousa
parents: 879
diff changeset
  1948
      current_tracking->lineNumber++;
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1949
  }
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1950
  
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1951
  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
  1952
  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
  1953
    current_tracking->currentTokenStart++;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1954
  current_tracking->currentChar++;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1955
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  1956
  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
  1957
}
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
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1962
/***********************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1963
/* 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
  1964
/***********************************/
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
/* 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
  1967
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
  1968
  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
  1969
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  1970
  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
  1971
    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
  1972
  for (i = include_stack_ptr - 1; i >= 0; i--)
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  1973
    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
  1974
}
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
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
  1977
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
  1978
/* 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
  1979
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
  1980
  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
  1981
    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
  1982
    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
  1983
  }
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
  1984
  
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
  1985
  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
  1986
  
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
  1987
  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
  1988
  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
  1989
  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
  1990
  
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
  1991
  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
  1992
  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
  1993
  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
  1994
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
  1995
  /* 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
  1996
  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
  1997
}
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
  1998
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
  1999
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
  2000
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
  2001
/* 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
  2002
 * 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
  2003
 */
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2004
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
  2005
  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
  2006
  
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
  2007
  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
  2008
    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
  2009
    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
  2010
  }
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
  2011
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
  2012
  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
  2013
  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
  2014
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
  2015
  /* 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
  2016
  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
  2017
//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
  2018
}
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
  2019
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
  2020
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
  2021
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
  2022
/* 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
  2023
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
  2024
  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
  2025
  
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
  2026
  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
  2027
    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
  2028
    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
  2029
    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
  2030
      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
  2031
      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
  2032
    }
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
  2033
    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
  2034
    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
  2035
  }
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
  2036
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
  2037
  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
  2038
    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
  2039
    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
  2040
  }
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
  2041
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
  2042
  /* 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
  2043
  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
  2044
}
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
  2045
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
  2046
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
  2047
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
  2048
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
  2049
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2050
/* 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
  2051
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
  2052
  /* 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
  2053
   * 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
  2054
   * 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
  2055
   * 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
  2056
   * 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
  2057
   */
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  2058
  /*
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  2059
  unsigned int i;
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  2060
  
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2061
  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
  2062
    if (yytext[i] == '\n')
879
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  2063
      current_tracking->lineNumber--;
c61b2e370181 Fix memory leak in lexical parser.
mjsousa
parents: 876
diff changeset
  2064
  */
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2065
  /* 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
  2066
  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
  2067
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2068
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2069
547
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2070
/* 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
  2071
 * 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
  2072
 */
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2073
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
  2074
  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
  2075
  unput(c);
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2076
  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
  2077
    unput(yycopy[i]);
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2078
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2079
  free(yycopy);
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2080
}
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2081
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2082
dab341e80664 Fix parsing os TIME literals & rename the extract_integer() function.
mjsousa <msousa@fe.up.pt>
parents: 415
diff changeset
  2083
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2084
/* The body_state tries to find a ';' before a END_PROGRAM, END_FUNCTION or END_FUNCTION_BLOCK or END_ACTION
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2085
 * To do so, it must ignore comments and pragmas. This means that we cannot do this in a signle lex rule.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2086
 * However, we must store any text we consume in every rule, so we can push it back into the buffer
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2087
 * once we have decided if we are parsing ST or IL code. The following functions manage that buffer used by
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2088
 * the body_state.
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2089
 */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2090
/* The buffer used by the body_state state */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2091
char *bodystate_buffer = NULL;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2092
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2093
/* append text to bodystate_buffer */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2094
void  append_bodystate_buffer(const char *text) {
1020
36fb9443b6ea fix bug introduced by commit 91bef6704b44 (parsing SFCs with transitions in ST and leading whitespace => endless loop)
mjsousa
parents: 1016
diff changeset
  2095
  //printf("<<<append_bodystate_buffer>>> %d <%s><%s>\n", bodystate_buffer, text, (NULL != bodystate_buffer)?bodystate_buffer:"NULL");
1016
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2096
  long int old_len = 0;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2097
  if (NULL != bodystate_buffer) old_len = strlen(bodystate_buffer);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2098
  bodystate_buffer = (char *)realloc(bodystate_buffer, old_len + strlen(text) + 1);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2099
  if (NULL == bodystate_buffer) ERROR;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2100
  strcpy(bodystate_buffer + old_len, text);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2101
  //printf("=<%s> %d %d\n", (NULL != bodystate_buffer)?bodystate_buffer:NULL, old_len + strlen(text) + 1, bodystate_buffer);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2102
}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2103
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2104
/* Return all data in bodystate_buffer back to flex, and empty bodystate_buffer. */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2105
void   unput_bodystate_buffer(void) {
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2106
  if (NULL == bodystate_buffer) ERROR;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2107
  //printf("<<<unput_bodystate_buffer>>>\n%s\n", bodystate_buffer);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2108
  
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2109
  for (long int i = strlen(bodystate_buffer)-1; i >= 0; i--)
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2110
    unput(bodystate_buffer[i]);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2111
  
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2112
  free(bodystate_buffer);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2113
  bodystate_buffer = NULL;
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2114
}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2115
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2116
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2117
/* Return true if bodystate_buffer is empty */
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2118
int  isempty_bodystate_buffer(void) {
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2119
  return (NULL == bodystate_buffer);
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2120
}
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2121
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2122
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2123
91bef6704b44 Add support for functions returning VOID (i.e. non-standard extension, allowing functions that do not return any data)
mjsousa
parents: 1014
diff changeset
  2124
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2125
/* 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
  2126
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
  2127
{
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2128
  /* 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
  2129
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2130
  /* 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
  2131
  /* 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
  2132
   *   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
  2133
   *   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
  2134
   */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2135
737
f6bc5230aadd Fix comments and code alignment
Mario de Sousa <msousa@fe.up.pt>
parents: 686
diff changeset
  2136
  /* 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
  2137
   *   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
  2138
   */
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2139
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2140
  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
  2141
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2142
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2143
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2144
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2145
/*******************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2146
/* Public Interface for Bison. */
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2147
/*******************************/
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2148
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2149
/* 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
  2150
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2151
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
  2152
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2153
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2154
/* 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
  2155
 * 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
  2156
 *
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2157
 * 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
  2158
 * Caller must close the file!
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2159
 */
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2160
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
  2161
  FILE *filehandle = NULL;
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2162
761
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2163
  if((filehandle = fopen(filename, "r")) != NULL) {
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2164
    yyin = filehandle;
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2165
    current_filename = strdup(filename);
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2166
    current_tracking = GetNewTracking(yyin);
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2167
  }
7b52623a2f37 Allow bison to ask for an END_OF_INPUT token multiple times!
mjsousa
parents: 757
diff changeset
  2168
  return filehandle;
757
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2169
}
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2170
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2171
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2172
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2173
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2174
f1fc4aa6f0e3 Code cleanup: move tracking functions to flex.
Mario de Sousa <msousa@fe.up.pt>
parents: 756
diff changeset
  2175
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2176
/*************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2177
/* 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
  2178
/* 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
  2179
/*************************************/
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2180
#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
  2181
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2182
#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
  2183
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2184
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
  2185
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
  2186
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2187
15
0b472e25eb16 Adding changes to make the compiler compatible with bison ver 2.3
mario
parents: 13
diff changeset
  2188
0b472e25eb16 Adding changes to make the compiler compatible with bison ver 2.3
mario
parents: 13
diff changeset
  2189
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2190
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
  2191
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
  2192
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2193
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2194
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
  2195
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2196
  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
  2197
  int res;
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  2198
	
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2199
  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
  2200
    /* 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
  2201
    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
  2202
      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
  2203
  } else {
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2204
    /* 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
  2205
    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
  2206
      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
  2207
      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
  2208
      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
  2209
      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
  2210
    }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2211
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2212
    /* 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
  2213
    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
  2214
    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
  2215
    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
  2216
      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
  2217
      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
  2218
    }
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2219
  }
136
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  2220
	
32bd7ef40897 Adding some improvements:
lbessard
parents: 131
diff changeset
  2221
	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
  2222
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2223
}
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
  2224
#endif