scan.ll

Lexx Bison programm Lexx Bison Lexx Bison

%{
/*
scanner spec
*/
#include <math.h>
#include <iostream>
#include <map>
#include "parser.tab.hpp"

class symbol;
extern double variableTable[26];
extern std::map<std::string, symbol> symbolTable;
%}

%%

[\t \n]   {  }
if      { return IF; }
else    { return ELSE; }
elseif  { return ELSEIF; }
endif   { return ENDIF; }
[a-zA-Z] { yylval.variableNumber = yytext[0]-'a'; return ID; }
[0-9]+  { yylval.doubleValue = atof(yytext); return NUMBER; }
= { return opSet; }
== { return opEqual; }
. { return yytext[0]; }

%%