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%{
#include "y.tab.h"
#include "reloc.h" /* Pour MAX_LABEL_LEN */
#include <string.h>
%}
%option nounput
CHIFFRE [0-9]
BLANC [ \t\n]
IDENTIFICATEUR [a-zA-Z][a-zA-Z0-9_]*
%x MLCOMMENT
/* %s : inclusive start condition (inclus aussi les règles sans <cond>)
%x : exclusive start condition (règles sans <cond> inactives)
*/
%%
"/*" BEGIN(MLCOMMENT);
<MLCOMMENT>\n yylineno++;;
<MLCOMMENT>"*/" BEGIN(INITIAL);
<MLCOMMENT>. ;
"//"[^\n]*\n yylineno++; /* Single line Comment*/
if return IF;
else return ELSE;
while return WHILE;
do return DO;
main{BLANC}*\({BLANC}*\) return MAIN;
printf return PRINTF;
\{ return '{';
\} return '}';
const return CONST;
int return INT;
"*" return '*';
"/" return '/';
"+" return '+';
"-" return '-';
">" return '>';
"<" return '<';
"=" return AFF;
"==" return EGALE;
"!=" return DIFFERENT;
\( return '(';
\) return ')';
{IDENTIFICATEUR} {
int lg = strlen(yytext);
if ( lg > MAX_LABEL_LEN ) {
return ERROR;
} else {
yylval.str = malloc(sizeof(char)*lg);
strcpy(yylval.str, yytext);
return IDENTIFICATEUR;
}
}
{CHIFFRE}+ {
yylval.nb = atoi(yytext);
return ENTIER;
}
"," return ',';
";" return ';';
\n yylineno++; /*printf("\n");*/
{BLANC} /*printf("BLANC");*/
[^ \t\n] fprintf(stderr, "LEX : ERROR : unknown char '%c'", yytext[0]); // TODO standardiser le msg d'erreur
/*[ \t] ;*/
%%
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