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/* PIA - Lenguajes Modernos de Programación
* FACULTAD DE CIENCIAS FÍSICO MATEMÁTICAS
* Luis Sebastián Martínez Vega - LCC */
#include <string>
#ifndef LEXER_H
#define LEXER_H
enum function_name{
sin,
cos,
tan,
csc,
sec,
ctg
};
enum token_type{
sum,
substraction,
division,
multiplication,
power,
variable,
number,
function,
left_parens,
right_parens,
nil
};
struct Token{
token_type type;
std::string value;
Token(token_type type, const std::string &value) : type(type), value(value){}
};
class Lexer{
private:
char var_name;
std::string text;
size_t current_char;
Token current_token;
bool matchFunction(const std::string &function_name);
std::string createNumber();
public:
Lexer(std::string text = {});
void setText(std::string text);
Token getCurrentToken();
Token match();
Token nextToken();
};
#endif /* LEXER_H */
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