#pragma once

#include <string>

namespace lexer {
// controlled character stream access
class Cursor {
private:
    const std::string &source;
    int position;     // current index in string
    int line;         // current index of line
    int column;       // 

public:
    char current();         // returns current symbol

    char peek(int offset);  // 
    void advance();

    bool eol() const;
    bool eof() const;
};
}