roza/lib/lexer.h

#ifndef RZ_LEXER_H
#define RZ_LEXER_H

#include "commons.h"
#include "node.h"
#include "err.h"

typedef struct {
  err_t* err;
  char* source;
  size_t cursor;
  int line;
} lexer_t;

void lexer_init(lexer_t* lexer, char const* source, err_t* err);
void lexer_free(lexer_t* lexer);

node_t* lexer_try_new_next(lexer_t* lexer);
NodeType lexer_peek(lexer_t* lexer, int lookahead);
void lexer_skip_spaces(lexer_t* lexer);
void lexer_skip_next(lexer_t* lexer);

node_t* lexer_try_new_keyword(lexer_t* lexer, char* kw,
                              NodeType type, int has_value,
                              int is_kw);

node_t* lexer_try_new_str(lexer_t* lexer);
node_t* lexer_try_new_ident(lexer_t* lexer);

int lexer_is_sep(lexer_t* lexer, size_t idx);

#endif