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compiler-the-translators/grammar.y

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/* Syntax Analyzer with Bison (3.8.1) */
/* (referenced Bison manual for file boilerplate [3.1]) */
// Prologue
%{
#include <stdio.h>
#include "symbol_table.c"
extern int yylex(void);
void yyerror(const char *err);
extern char* yytext;
extern int yychar;
SymbolTable * st;
%}
%token ID 101
%token T_INTEGER
%token T_ADDRESS 202
%token T_BOOLEAN 203
%token T_CHARACTER 204
%token T_STRING 205
%token C_INTEGER 301
%token C_NULL 302
%token C_CHARACTER 303
%token C_STRING 304
%token C_TRUE 305
%token C_FALSE 306
%token WHILE 401
%token IF 402
%token THEN 403
%token ELSE 404
%token TYPE 405
%token FUNCTION 406
%token RETURN 407
%token EXTERNAL 408
%token AS 409
%token L_PAREN 501
%token R_PAREN 502
%token L_BRACKET 503
%token R_BRACKET 504
%token L_BRACE 505
%token R_BRACE 506
%token SEMI_COLON 507
%token COLON 508
%token COMMA 509
%token ARROW 510
%token ADD 601
%token SUB_OR_NEG 602
%token MUL 603
%token DIV 604
%token REM 605
%token LESS_THAN 606
%token EQUAL_TO 607
%token ASSIGN 608
%token NOT 609
%token AND 610
%token OR 611
%token DOT 612
%token RESERVE 613
%token RELEASE 614
%token COMMENT 700
%%
start: /*empty for now*/
OPTIONAL;
OPTIONAL:
L_BRACKET {printf("success");};
//
%%
void yyerror(const char *err) {
fprintf(stderr, "Error: %s\n", err);
}
int main() {
st=CreateScope(NULL,1,1);
int a;
while ((a = yyparse()) != EOF){
printf("%d = a: yytext = %s: yychar = %d\n", a, yytext, yychar);
if(yytext[0] == '!'){
print_symbol_table(getAncestor(st),stdout);
break;
}
}
return 0;
}