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#ifndef NVIM_MBYTE_H
#define NVIM_MBYTE_H
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include "nvim/iconv.h"
#include "nvim/func_attr.h"
#include "nvim/os/os_defs.h" // For indirect
#include "nvim/types.h" // for char_u
/*
* Return byte length of character that starts with byte "b".
* Returns 1 for a single-byte character.
* MB_BYTE2LEN_CHECK() can be used to count a special key as one byte.
* Don't call MB_BYTE2LEN(b) with b < 0 or b > 255!
*/
#define MB_BYTE2LEN(b) utf8len_tab[b]
#define MB_BYTE2LEN_CHECK(b) (((b) < 0 || (b) > 255) ? 1 : utf8len_tab[b])
// max length of an unicode char
#define MB_MAXCHAR 6
/* properties used in enc_canon_table[] (first three mutually exclusive) */
#define ENC_8BIT 0x01
#define ENC_DBCS 0x02
#define ENC_UNICODE 0x04
#define ENC_ENDIAN_B 0x10 /* Unicode: Big endian */
#define ENC_ENDIAN_L 0x20 /* Unicode: Little endian */
#define ENC_2BYTE 0x40 /* Unicode: UCS-2 */
#define ENC_4BYTE 0x80 /* Unicode: UCS-4 */
#define ENC_2WORD 0x100 /* Unicode: UTF-16 */
#define ENC_LATIN1 0x200 /* Latin1 */
#define ENC_LATIN9 0x400 /* Latin9 */
#define ENC_MACROMAN 0x800 /* Mac Roman (not Macro Man! :-) */
// TODO(bfredl): eventually we should keep only one of the namings
#define mb_ptr2len utfc_ptr2len
#define mb_char2len utf_char2len
#define mb_char2cells utf_char2cells
/// Flags for vimconv_T
typedef enum {
CONV_NONE = 0,
CONV_TO_UTF8 = 1,
CONV_9_TO_UTF8 = 2,
CONV_TO_LATIN1 = 3,
CONV_TO_LATIN9 = 4,
CONV_ICONV = 5,
} ConvFlags;
#define MBYTE_NONE_CONV { \
.vc_type = CONV_NONE, \
.vc_factor = 1, \
.vc_fail = false, \
}
/// Structure used for string conversions
typedef struct {
int vc_type; ///< Zero or more ConvFlags.
int vc_factor; ///< Maximal expansion factor.
# ifdef HAVE_ICONV
iconv_t vc_fd; ///< Value for CONV_ICONV.
# endif
bool vc_fail; ///< What to do with invalid characters: if true, fail,
///< otherwise use '?'.
} vimconv_T;
extern const uint8_t utf8len_tab_zero[256];
extern const uint8_t utf8len_tab[256];
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "mbyte.h.generated.h"
#endif
static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
REAL_FATTR_NONNULL_ALL REAL_FATTR_PURE REAL_FATTR_WARN_UNUSED_RESULT;
/// Compare strings
///
/// @param[in] ic True if case is to be ignored.
///
/// @return 0 if s1 == s2, <0 if s1 < s2, >0 if s1 > s2.
static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
{
return (ic ? mb_stricmp(s1, s2) : strcmp(s1, s2));
}
#endif // NVIM_MBYTE_H
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