#ifndef KERNAUX_INCLUDED_PRINTF_FMT
#define KERNAUX_INCLUDED_PRINTF_FMT

#ifdef __cplusplus
extern "C" {
#endif

#include <stdbool.h>

#define KERNAUX_PRINTF_FMT_FLAGS_ZEROPAD   (1u <<  0u)
#define KERNAUX_PRINTF_FMT_FLAGS_LEFT      (1u <<  1u)
#define KERNAUX_PRINTF_FMT_FLAGS_PLUS      (1u <<  2u)
#define KERNAUX_PRINTF_FMT_FLAGS_SPACE     (1u <<  3u)
#define KERNAUX_PRINTF_FMT_FLAGS_HASH      (1u <<  4u)
#define KERNAUX_PRINTF_FMT_FLAGS_UPPERCASE (1u <<  5u)
#define KERNAUX_PRINTF_FMT_FLAGS_CHAR      (1u <<  6u)
#define KERNAUX_PRINTF_FMT_FLAGS_SHORT     (1u <<  7u)
#define KERNAUX_PRINTF_FMT_FLAGS_LONG      (1u <<  8u)
#define KERNAUX_PRINTF_FMT_FLAGS_LONG_LONG (1u <<  9u)
#define KERNAUX_PRINTF_FMT_FLAGS_PRECISION (1u << 10u)
#define KERNAUX_PRINTF_FMT_FLAGS_ADAPT_EXP (1u << 11u)

enum KernAux_PrintfFmt_Type {
    KERNAUX_PRINTF_FMT_TYPE_NONE,
    KERNAUX_PRINTF_FMT_TYPE_INT,
    KERNAUX_PRINTF_FMT_TYPE_UINT,
    KERNAUX_PRINTF_FMT_TYPE_FLOAT,
    KERNAUX_PRINTF_FMT_TYPE_EXP,
    KERNAUX_PRINTF_FMT_TYPE_CHAR,
    KERNAUX_PRINTF_FMT_TYPE_STR,
    KERNAUX_PRINTF_FMT_TYPE_PTR,
    KERNAUX_PRINTF_FMT_TYPE_PERCENT,
};

struct KernAux_PrintfFmt_Spec {
    unsigned int flags;
    unsigned int width;
    unsigned int precision;
    enum KernAux_PrintfFmt_Type type;
    unsigned int base;

    bool set_width;
    bool set_precision;
};

struct KernAux_PrintfFmt_Spec KernAux_PrintfFmt_Spec_create();
void KernAux_PrintfFmt_Spec_init(struct KernAux_PrintfFmt_Spec *spec);

const char *KernAux_PrintfFmt_Spec_parse(struct KernAux_PrintfFmt_Spec *spec, const char *format);

void KernAux_PrintfFmt_Spec_parse_flags(struct KernAux_PrintfFmt_Spec *spec, const char **format);
void KernAux_PrintfFmt_Spec_parse_width(struct KernAux_PrintfFmt_Spec *spec, const char **format);
void KernAux_PrintfFmt_Spec_parse_precision(struct KernAux_PrintfFmt_Spec *spec, const char **format);
void KernAux_PrintfFmt_Spec_parse_length(struct KernAux_PrintfFmt_Spec *spec, const char **format);
void KernAux_PrintfFmt_Spec_parse_type(struct KernAux_PrintfFmt_Spec *spec, const char **format);

void KernAux_PrintfFmt_Spec_set_width(struct KernAux_PrintfFmt_Spec *spec, int width);
void KernAux_PrintfFmt_Spec_set_precision(struct KernAux_PrintfFmt_Spec *spec, int precision);

#ifdef __cplusplus
}
#endif

#endif