CMinilan.l

Lexer for mini language CMinilan (Lex)

// Author: Overxfl0w13 //
BEGGIN	begin
END	end
DIGIT	[0-9]
LETTER	[a-zA-Z]
BLANK	[ \t]
LINE	\n
SCOMMENT	("//"({LETTER}|{BLANK})*)
MCOMMENT	("/**"({LETTER}|{BLANK}|{LINE})*"**/")
EOS	";"
INTEGER {DIGIT}+
REAL	({INTEGER}"."{INTEGER})
MINUS	"-"
MULT	"*"
DIV	"/"
PLUS	"+"
LP	"("
RP	")"
PRINT	print
LT	"<"
GT	">"
EQ	"=="
SET	"="
VARIABLE	({LETTER}+({LETTER}|{DIGIT})*)
PARSEERROR .

%{
	#include <stdio.h>
	#include "y.tab.h"
%}

%%

{INTEGER}	{ 
				printf("SCANNER:: INTEGER %d\n",atoi(yytext));
				yylval = atoi(yytext);
				return INTEGER;
			}
{REAL}		{ 
				printf("SCANNER:: REAL %f\n",atof(yytext)); 
				yylval = atof(yytext);
				return FLOAT;
			}
{MINUS}		{ 
				printf("SCANNER:: MINUS\n"); 
				return MINUS;
			}
{PLUS}		{ 
				printf("SCANNER:: PLUS\n"); 
				return PLUS;
			}
{MULT}		{ 
				printf("SCANNER:: MULT\n"); 
				return MULT;
			}
{DIV}		{ 
				printf("SCANNER:: DIV\n"); 
				return DIV;
			}
{RP}		{ 
				printf("SCANNER:: RP\n"); 
				return RP;
			}
{LP}		{ 
				printf("SCANNER:: LP\n"); 
				return LP;
			}
{PRINT}		{ 
				printf("SCANNER:: PRINT\n"); 
				yylval = *yytext; // No seguro //
				return PRINT;
			}
{BEGGIN}	{ 
				printf("SCANNER:: BEGIN\n"); 
				return BEGGIN;
			}
{END}		{ 
				printf("SCANNER:: END\n"); 
				return END;
			}
{EOS}		{ 
				printf("SCANNER:: EOS\n"); 
				return EOS;
			}
{LT}		{ 
				printf("SCANNER:: LT\n");
				return *yytext; 
			}
{GT}		{ 
				printf("SCANNER:: GT\n"); 
				return *yytext;
			}
{EQ}		{ 
				printf("SCANNER:: EQ\n");
				return *yytext;
			}
{SET}		{ 
				printf("SCANNER:: SET\n"); 
				return *yytext;
				 
			}
{VARIABLE}	{ 
				printf("SCANNER:: ID <%s> \n",yytext);
				yylval = *yytext;
				return VARIABLE;
			}
{SCOMMENT} 	{ 
				printf("SCANNER:: SIMPLE COMMENT,ignoring: <%s>\n",yytext); 
			}
{MCOMMENT}  { 
				printf("SCANNER:: MULT COMMENT,ignoring: <%s>\n",yytext); 
			}
{PARSEERROR} {
				printf("SCANNER:: Unmatched input: <%s> \n",yytext); 
			 }
%%

int yywrap(void){ return 1; }

//int main(void){
//	yylex();
//	return 0;
//}