#ifndef LIBREGEXIS024_CODESET_H
#define LIBREGEXIS024_CODESET_H

#include <vector>
#include <utility>
#include <stdint.h>
#include <string>

typedef std::vector<std::pair<uint32_t, uint32_t>> codeset_t;

codeset_t invert_set(const codeset_t& X);
codeset_t merge_sets(const codeset_t& A, const codeset_t& B);
codeset_t intersect_sets(const codeset_t& A, const codeset_t& B);
codeset_t subtract_sets(const codeset_t& A, const codeset_t& B);

/* Aborts if segment in question hit the edge (unsafe function) */
bool is_inside(uint32_t start, uint32_t end, codeset_t& X);

codeset_t set_add_char(const codeset_t& X, uint32_t cp);
codeset_t set_add_range(const codeset_t& X, uint32_t start, uint32_t end);

codeset_t codeset_of_one_char(uint32_t ch);
#define codeset_of_all          codeset_t({{0, UINT32_MAX}})

std::string stringifyCodesetBase10(const codeset_t& CS);

#endif //LIBREGEXIS024_CODESET_H