ascii.h
Go to the documentation of this file.
1 #ifndef NVIM_ASCII_H
2 #define NVIM_ASCII_H
3 
4 #include <stdbool.h>
5 
6 #include "nvim/func_attr.h"
7 #include "nvim/macros.h"
8 #include "nvim/os/os_defs.h"
9 
10 // Definitions of various common control characters.
11 
12 #define CHAR_ORD(x) ((uint8_t)(x) < 'a' \
13  ? (uint8_t)(x) - 'A' \
14  : (uint8_t)(x) - 'a')
15 #define CHAR_ORD_LOW(x) ((uint8_t)(x) - 'a')
16 #define CHAR_ORD_UP(x) ((uint8_t)(x) - 'A')
17 #define ROT13(c, a) (((((c) - (a)) + 13) % 26) + (a))
18 
19 #define NUL '\000'
20 #define BELL '\007'
21 #define BS '\010'
22 #define TAB '\011'
23 #define NL '\012'
24 #define NL_STR "\012"
25 #define FF '\014'
26 #define CAR '\015' // CR is used by Mac OS X
27 #define ESC '\033'
28 #define ESC_STR "\033"
29 #define DEL 0x7f
30 #define DEL_STR "\177"
31 #define CSI 0x9b // Control Sequence Introducer
32 #define CSI_STR "\233"
33 #define DCS 0x90 // Device Control String
34 #define STERM 0x9c // String Terminator
35 
36 #define POUND 0xA3
37 
38 #define CTRL_CHR(x) (TOUPPER_ASC(x) ^ 0x40) // '?' -> DEL, '@' -> ^@, etc.
39 #define META(x) ((x) | 0x80)
40 
41 #define CTRL_F_STR "\006"
42 #define CTRL_H_STR "\010"
43 #define CTRL_V_STR "\026"
44 
45 #define Ctrl_AT 0 // @
46 #define Ctrl_A 1
47 #define Ctrl_B 2
48 #define Ctrl_C 3
49 #define Ctrl_D 4
50 #define Ctrl_E 5
51 #define Ctrl_F 6
52 #define Ctrl_G 7
53 #define Ctrl_H 8
54 #define Ctrl_I 9
55 #define Ctrl_J 10
56 #define Ctrl_K 11
57 #define Ctrl_L 12
58 #define Ctrl_M 13
59 #define Ctrl_N 14
60 #define Ctrl_O 15
61 #define Ctrl_P 16
62 #define Ctrl_Q 17
63 #define Ctrl_R 18
64 #define Ctrl_S 19
65 #define Ctrl_T 20
66 #define Ctrl_U 21
67 #define Ctrl_V 22
68 #define Ctrl_W 23
69 #define Ctrl_X 24
70 #define Ctrl_Y 25
71 #define Ctrl_Z 26
72 // CTRL- [ Left Square Bracket == ESC
73 #define Ctrl_BSL 28 // \ BackSLash
74 #define Ctrl_RSB 29 // ] Right Square Bracket
75 #define Ctrl_HAT 30 // ^
76 #define Ctrl__ 31
77 
78 // Character that separates dir names in a path.
79 #ifdef BACKSLASH_IN_FILENAME
80 # define PATHSEP psepc
81 # define PATHSEPSTR pseps
82 #else
83 # define PATHSEP '/'
84 # define PATHSEPSTR "/"
85 #endif
86 
87 static inline bool ascii_iswhite(int)
90 
91 static inline bool ascii_iswhite_or_nul(int)
94 
95 static inline bool ascii_isdigit(int)
98 
99 static inline bool ascii_isxdigit(int)
102 
103 static inline bool ascii_isident(int)
106 
107 static inline bool ascii_isbdigit(int)
110 
111 static inline bool ascii_isspace(int)
114 
118 static inline bool ascii_iswhite(int c)
119 {
120  return c == ' ' || c == '\t';
121 }
122 
126 static inline bool ascii_iswhite_or_nul(int c)
127 {
128  return ascii_iswhite(c) || c == NUL;
129 }
130 
140 static inline bool ascii_isdigit(int c)
141 {
142  return c >= '0' && c <= '9';
143 }
144 
148 static inline bool ascii_isxdigit(int c)
149 {
150  return (c >= '0' && c <= '9')
151  || (c >= 'a' && c <= 'f')
152  || (c >= 'A' && c <= 'F');
153 }
154 
158 static inline bool ascii_isident(int c)
159 {
160  return ASCII_ISALNUM(c) || c == '_';
161 }
162 
166 static inline bool ascii_isbdigit(int c)
167 {
168  return (c == '0' || c == '1');
169 }
170 
174 static inline bool ascii_isodigit(int c)
175 {
176  return (c >= '0' && c <= '7');
177 }
178 
183 static inline bool ascii_isspace(int c)
184 {
185  return (c >= 9 && c <= 13) || c == ' ';
186 }
187 
188 #endif // NVIM_ASCII_H
macros.h
NUL
#define NUL
Definition: ascii.h:19
ASCII_ISALNUM
#define ASCII_ISALNUM(c)
Definition: macros.h:54
REAL_FATTR_CONST
#define REAL_FATTR_CONST
Definition: func_attr.h:167
os_defs.h
func_attr.h
REAL_FATTR_ALWAYS_INLINE
static int REAL_FATTR_WARN_UNUSED_RESULT REAL_FATTR_ALWAYS_INLINE
Definition: typval_encode.c.h:267