mbyte.h
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1 #ifndef NVIM_MBYTE_H
2 #define NVIM_MBYTE_H
3 
4 #include <stdint.h>
5 #include <stdbool.h>
6 #include <string.h>
7 
8 #include "nvim/iconv.h"
9 #include "nvim/func_attr.h"
10 #include "nvim/os/os_defs.h" // For indirect
11 #include "nvim/types.h" // for char_u
12 
13 /*
14  * Return byte length of character that starts with byte "b".
15  * Returns 1 for a single-byte character.
16  * MB_BYTE2LEN_CHECK() can be used to count a special key as one byte.
17  * Don't call MB_BYTE2LEN(b) with b < 0 or b > 255!
18  */
19 #define MB_BYTE2LEN(b) utf8len_tab[b]
20 #define MB_BYTE2LEN_CHECK(b) (((b) < 0 || (b) > 255) ? 1 : utf8len_tab[b])
21 
22 // max length of an unicode char
23 #define MB_MAXCHAR 6
24 
25 /* properties used in enc_canon_table[] (first three mutually exclusive) */
26 #define ENC_8BIT 0x01
27 #define ENC_DBCS 0x02
28 #define ENC_UNICODE 0x04
29 
30 #define ENC_ENDIAN_B 0x10 /* Unicode: Big endian */
31 #define ENC_ENDIAN_L 0x20 /* Unicode: Little endian */
32 
33 #define ENC_2BYTE 0x40 /* Unicode: UCS-2 */
34 #define ENC_4BYTE 0x80 /* Unicode: UCS-4 */
35 #define ENC_2WORD 0x100 /* Unicode: UTF-16 */
36 
37 #define ENC_LATIN1 0x200 /* Latin1 */
38 #define ENC_LATIN9 0x400 /* Latin9 */
39 #define ENC_MACROMAN 0x800 /* Mac Roman (not Macro Man! :-) */
40 
41 // TODO(bfredl): eventually we should keep only one of the namings
42 #define mb_ptr2len utfc_ptr2len
43 #define mb_char2len utf_char2len
44 #define mb_char2cells utf_char2cells
45 
47 typedef enum {
48  CONV_NONE = 0,
54 } ConvFlags;
55 
56 #define MBYTE_NONE_CONV { \
57  .vc_type = CONV_NONE, \
58  .vc_factor = 1, \
59  .vc_fail = false, \
60 }
61 
63 typedef struct {
64  int vc_type;
65  int vc_factor;
66 # ifdef HAVE_ICONV
67  iconv_t vc_fd;
68 # endif
69  bool vc_fail;
70 } vimconv_T;
72 
73 extern const uint8_t utf8len_tab_zero[256];
74 
75 extern const uint8_t utf8len_tab[256];
76 
77 #ifdef INCLUDE_GENERATED_DECLARATIONS
78 # include "mbyte.h.generated.h"
79 #endif
80 
81 static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
83 
89 static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
90 {
91  return (ic ? mb_stricmp(s1, s2) : strcmp(s1, s2));
92 }
93 #endif // NVIM_MBYTE_H
Definition: mbyte.h:50
int vc_type
Zero or more ConvFlags.
Definition: mbyte.h:64
bool vc_fail
Definition: mbyte.h:69
int vc_factor
Maximal expansion factor.
Definition: mbyte.h:65
int mb_stricmp(const char *s1, const char *s2)
Definition: mbyte.c:1527
static int REAL_FATTR_WARN_UNUSED_RESULT
Definition: typval_encode.c.h:295
#define REAL_FATTR_NONNULL_ALL
Definition: func_attr.h:183
Definition: mbyte.h:49
Definition: mbyte.h:52
Definition: mbyte.h:48
const uint8_t utf8len_tab_zero[256]
Definition: mbyte.c:104
const uint8_t utf8len_tab[256]
Definition: mbyte.c:83
ConvFlags
Flags for vimconv_T.
Definition: mbyte.h:47
#define REAL_FATTR_PURE
Definition: func_attr.h:163
Definition: mbyte.h:53
Definition: mbyte.h:51
Structure used for string conversions.
Definition: mbyte.h:63