mbyte.h
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1 #ifndef NVIM_MBYTE_H
2 #define NVIM_MBYTE_H
3 
4 #include <stdbool.h>
5 #include <stdint.h>
6 #include <string.h>
7 
8 #include "nvim/func_attr.h"
9 #include "nvim/iconv.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 
42 typedef enum {
43  CONV_NONE = 0,
49 } ConvFlags;
50 
51 #define MBYTE_NONE_CONV { \
52  .vc_type = CONV_NONE, \
53  .vc_factor = 1, \
54  .vc_fail = false, \
55 }
56 
58 typedef struct {
59  int vc_type;
60  int vc_factor;
61 #ifdef HAVE_ICONV
62  iconv_t vc_fd;
63 #endif
64  bool vc_fail;
65 } vimconv_T;
67 
68 extern const uint8_t utf8len_tab_zero[256];
69 
70 extern const uint8_t utf8len_tab[256];
71 
72 #ifdef INCLUDE_GENERATED_DECLARATIONS
73 # include "mbyte.h.generated.h"
74 #endif
75 
76 static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
78 
84 static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
85 {
86  return (ic ? mb_stricmp(s1, s2) : strcmp(s1, s2));
87 }
88 #endif // NVIM_MBYTE_H
types.h
mb_stricmp
int mb_stricmp(const char *s1, const char *s2)
Definition: mbyte.c:1564
CONV_9_TO_UTF8
@ CONV_9_TO_UTF8
Definition: mbyte.h:45
CONV_TO_LATIN1
@ CONV_TO_LATIN1
Definition: mbyte.h:46
vimconv_T
Structure used for string conversions.
Definition: mbyte.h:58
CONV_TO_LATIN9
@ CONV_TO_LATIN9
Definition: mbyte.h:47
REAL_FATTR_NONNULL_ALL
#define REAL_FATTR_NONNULL_ALL
Definition: func_attr.h:183
utf8len_tab_zero
const uint8_t utf8len_tab_zero[256]
Definition: mbyte.c:102
vimconv_T::vc_factor
int vc_factor
Maximal expansion factor.
Definition: mbyte.h:60
CONV_NONE
@ CONV_NONE
Definition: mbyte.h:43
utf8len_tab
const uint8_t utf8len_tab[256]
Definition: mbyte.c:81
vimconv_T::vc_fail
bool vc_fail
Definition: mbyte.h:64
vimconv_T::vc_type
int vc_type
Zero or more ConvFlags.
Definition: mbyte.h:59
iconv.h
ConvFlags
ConvFlags
Flags for vimconv_T.
Definition: mbyte.h:42
os_defs.h
CONV_ICONV
@ CONV_ICONV
Definition: mbyte.h:48
REAL_FATTR_PURE
#define REAL_FATTR_PURE
Definition: func_attr.h:163
CONV_TO_UTF8
@ CONV_TO_UTF8
Definition: mbyte.h:44
func_attr.h
REAL_FATTR_WARN_UNUSED_RESULT
static int REAL_FATTR_WARN_UNUSED_RESULT
Definition: typval_encode.c.h:300