%{
	#include <stdio.h>
	#include <stdlib.h>
//	#include "pl0yacc.tab.h"
	#include "pl0yacc.tab.hpp"

	void yyerror(char*);

//#define YY_USER_INIT yylloc.first_line = 1;

	/*handle locations */
	int yylcolumn = 1;

	/*The macro YY_USER_INIT is used to define the action to be
	performed before the first scan*/

	#define YY_USER_INIT yylloc.first_line = yylloc.first_column = 1;

	/*The macro YY_USER_ACTION is executed always before the execution
	of the action whenever token is recognized by lex*/

//	#define YY_USER_ACTION yylloc.first_line = yylloc.last_line = yylineno;
//	yylloc.first_column = yylcolumn;
//	yylloc.last_column = yylcolumn+yyleng-1;
//	yylcolumn += yyleng;
%}


number			[0-9]+
identifier		[a-zA-Z][a-zA-Z|0-9]*
ws			[ \t]+
newline			[\r\n]+


%%

":="    	        {
						//printf("ASSIGNMENT");
						//columnCount += 2;
						//yylval.num = columnCount;
						return ASSIGNMENT;
					}
"/"  	            {
						//printf("DIVIDE");
						//++columnCount;
						//yylval.num = columnCount;
						return DIVIDE;
					}
"*"                 {
						//printf("MULTIPLY");
						//++columnCount;
						//yylval.num = columnCount;
						return MULTIPLY;
					}
"-"                 {
						//printf("SUB");
						//++columnCount;
						//yylval.num = columnCount;
						return SUB;
					}
"+"                 {
						///printf("ADD");
						//++columnCount;
						//yylval.num = columnCount;
						return ADD;
					}
")"                 {
						//printf("RB");
						//++columnCount;
						//yylval.num = columnCount;
						return RB;
					}
"("                 {
						//printf("LB");
						//++columnCount;
						//yylval.num = columnCount;
						return LB;
					}

"<>"                {
						//printf("NE");
						//columnCount += 2;
						//yylval.num = columnCount;
						return NE;
					}
">="                {
						//printf("GE");
						//columnCount += 2;
						//yylval.num = columnCount;
						return GE;
					}
"<="                {
						//printf("LE");
						//columnCount += 2;
						//yylval.num = columnCount;
						return LE;
					}
"="                 {
						//printf("EQ");
						//++columnCount;
						///yylval.num = columnCount;
						return EQ;
					}
"<"                 {
						//printf("LT");
						//++columnCount;
						//yylval.num = columnCount;
						return LT;
					}
">"                 {
						//printf("GT");
						///++columnCount;
						//yylval.num = columnCount;
						return GT;
					}

","                 {
						//printf("COMMA");
						//++columnCount;
						//yylval.num = columnCount;
						return COMMA;
					}
"."                 {
						//printf("DOT");
						//++columnCount;
						//yylval.num = columnCount;
						return DOT;
					}
";"                 {
						//printf("SEMICOLON");
						//++columnCount;
						//yylval.num = columnCount;
						return SEMICOLON;
					}

begin|BEGIN         {
						//printf("BEGIN");
						//columnCount += 5;
						//yylval.num = columnCount;
						return BEGN;
					}
call|CALL           {
						//printf("CALL");
						//columnCount += 4;
						//yylval.num = columnCount;
						return CALL;
					}
const|CONST         {
						//printf("CONST");
						//columnCount += 5;
						//yylval.num = columnCount;
						return CONST;
					}
do|DO               {
						//printf("DO");
						//columnCount += 2;
						//yylval.num = columnCount;
						return DO;
					}
end|END             {
						//printf("END");
						//columnCount += 3;
						//yylval.num = columnCount;
						return END;
					}
if|IF               {
						//printf("IF");
						//columnCount += 2;
						//yylval.num = columnCount;
						return IF;
					}
odd|ODD             {
						//printf("ODD");
						//columnCount += 3;
						//yylval.num = columnCount;
						return ODD;
					}
procedure|PROCEDURE {
						//printf("PROCEDURE");
						//columnCount += 9;
						//yylval.num = columnCount;
						return PROCEDURE;
					}
then|THEN           {
						//printf("THEN");
						//columnCount += 4;
						//yylval.num = columnCount;
						return THEN;
					}
var|VAR             {
						//printf("VAR");
						//columnCount += 3;
						//yylval.num = columnCount;
						return VAR;
					}
while|WHILE         {
						//printf("WHILE");
						//columnCount += 5;
						//yylval.num = columnCount;
						return WHILE;
					}

{number}			{
						//int length = strlen(yytext);
						//columnCount += length;
						//yylval.num = atoi(yytext);
						return NUMBER;
						//printf("NUMBER");
					}

{identifier}		{
						yylval.str = strdup(yytext);
						return ID;
						//printf("IDENIFIER");
					}

{ws}$				{
						//printf("WHITE_SPACES_AT_END")
					}

{ws}				{
						//printf("WHITE_SPACES");
					}

{newline}			{
						//yylloc.first_line++;
						//printf("NL");
					}

%%

int yywrap(void) {
	return 1;
}