uchar.h

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#ifndef TRO_UCHAR_H_
#define TRO_UCHAR_H_
 
#include "tro/private/api.h"
 
#include <stdint.h>
#include <stddef.h>
 
TRO__C_API_BEGIN

typedef uint8_t tro_u8code;

#define TRO_MULTI_U8CODE_MAX 4

typedef uint16_t tro_u16code;

#define TRO_MULTI_U16CODE_MAX 2

typedef uint32_t tro_urune;

#define TRO_URUNE_MAX 0x10FFFF

#define TRO_URUNE_IS_VALID(rune)                                               \
        ((rune < 0xD800 || 0xDFFF < rune) && rune <= TRO_URUNE_MAX)

TRO__API size_t tro_urune_to_u8codes(tro_urune rune, tro_u8code *out);

TRO__API size_t tro_u8codes_to_urune(const tro_u8code *seq, size_t seqlen,
                                     tro_urune *out);

TRO__API size_t tro_urune_to_u16codes(tro_urune rune, tro_u16code *out);

TRO__API size_t tro_u16codes_to_urune(const tro_u16code *seq, size_t seqlen,
                                      tro_urune *out);
TRO__API size_t tro_u8codes_to_u16codes(const tro_u8code *seq, size_t seqlen,
                                        tro_u16code *out, size_t *outlen);

TRO__API size_t tro_u16codes_to_u8codes(const tro_u16code *seq, size_t seqlen,
                                        tro_u8code *out, size_t *outlen);

typedef uint16_t tro_char16;

TRO__API size_t tro_str8_urune_len(const char *str, size_t strl);

TRO__API size_t tro_str16_urune_len(const tro_char16 *str, size_t strl);
 
TRO__C_API_END
 
#endif // TRO_UCHAR_H_