#ifndef MD_FSM_H
#define MD_FSM_H

#include <stdint.h>
#include <stddef.h>
#include "sashidown.h"

#ifndef likely
#define likely(x)   __builtin_expect(!!(x), 1)
#endif
#ifndef unlikely
#define unlikely(x) __builtin_expect(!!(x), 0)
#endif

extern const uint8_t CH_HTML_ESCAPE[256];
extern const uint8_t CH_SCAN_STOP[256];
extern const uint8_t CH_JSON_ESCAPE[256];

int  fsm_append(sashidown_ctx_t *ctx, char c);
int  fsm_append_str(sashidown_ctx_t *ctx, const char *s);
int  fsm_append_len(sashidown_ctx_t *restrict ctx, const char *restrict s, size_t n);

void fsm_append_fast(sashidown_ctx_t *ctx, char c);
void fsm_append_len_fast(sashidown_ctx_t *restrict ctx, const char *restrict s, size_t n);

void fsm_write_begin(sashidown_ctx_t *ctx);
void fsm_write_end(sashidown_ctx_t *ctx);

#define fsm_append_lit(ctx, s) fsm_append_len((ctx), (s), sizeof(s) - 1)

#endif /* MD_FSM_H */