lexer.l

%{
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "y.tab.h"
#include "internals.h"

//extern int return_token(char* identifier);


char* identifier_name;
int op_addr;
int val;
//IDENTIFIER ^[a-zA-Z_][a-zA-Z0-9_]*
//"add"               {op_addr = op_type_add	; return OPERATION;};
//"sub"               {op_addr = op_type_sub	; return OPERATION;};
//"and"               {op_addr = op_type_and	; return OPERATION;};
//"xor"               {op_addr = op_type_xor	; return OPERATION;};
//"or"                {op_addr = op_type_or	; return OPERATION;};
//"not"				{op_addr = op_type_not	; return OPERATION;};
//"shftl"				{op_addr = op_type_shftl; return OPERATION;};
//"shftr"				{op_addr = op_type_shftr; return OPERATION;};
//"load"              return INS;
//"store"             return INS;
//"mov"               return INS;


//append_symbol(&local_table, yytext, 0x00, "none");

%}
%option nounput 
%option yylineno
%option noyywrap

%%
    
"struct"                    return STRUCT;
"byte"                      return BYTE;

[A-Za-z_][A-Za-z_0-9]*      {yylval.id = strdup(yytext); return IDENTIFIER;};
(0-9)*                      {yylval.val=atoi(yytext); return NUMBER;}
(0x)+[A-Fa-f0-9]*           {yylval.val=strtol(yytext,NULL,0); return NUMBER;}


":"                         return ':';
"("                         return '(';
")"                         return ')';
","                         return ',';
";"                         return ';';
"{"                         return '{';
"}"                         return '}';
"."                         return '.';

[\r\n]                      ;
[\n]                        ;
.                           ;
[ \t]+                      ;

%%