#ifndef LEXER_H
#define LEXER_H

#include <string>
#include <fstream>

using std::string;
using std::ifstream;

enum TokenKind { ident, number, text, separator, eos };

class Lexer
{
private:
   ifstream f;
   char ch;
   void nextChar ();

public:
   TokenKind kind;
   string token;
   void nextToken ();
   void error (string msg);

   bool isSeparator (char c);
   void checkSeparator (char c);
   string readIdent ();
   string readText ();


public:
    Lexer (string fileName);
};

#endif // LEXER_H