dte test coverage

Directory: ./
File: src/util/ascii.h
Date: 2025-10-16 19:09:21
Exec Total Coverage
Lines: 37 37 100.0%
Functions: 12 12 100.0%
Branches: 14 14 100.0%
Line Branch Exec Source
1 #ifndef UTIL_ASCII_H
2 #define UTIL_ASCII_H
3
4 #include <stdbool.h>
5 #include <stddef.h>
6 #include <stdint.h>
7 #include "macros.h"
8
9 extern const uint8_t ascii_table[256];
10
11 typedef enum {
12 ASCII_SPACE = 0x01,
13 ASCII_DIGIT = 0x02,
14 ASCII_CNTRL = 0x04,
15 ASCII_REGEX = 0x08, // [$()*+.?[^{|\]
16 ASCII_LOWER = 0x10,
17 ASCII_UPPER = 0x20,
18 ASCII_PUNCT = 0x40,
19 ASCII_UNDERSCORE = 0x80,
20 ASCII_ALPHA = ASCII_LOWER | ASCII_UPPER,
21 ASCII_ALNUM = ASCII_ALPHA | ASCII_DIGIT,
22 ASCII_NONWORD = ASCII_SPACE | ASCII_CNTRL | ASCII_PUNCT,
23 } AsciiCharType;
24
25 #define ascii_isspace(x) ascii_test(x, ASCII_SPACE)
26 #define ascii_iscntrl(x) ascii_test(x, ASCII_CNTRL)
27 #define ascii_islower(x) ascii_test(x, ASCII_LOWER)
28 #define ascii_isupper(x) ascii_test(x, ASCII_UPPER)
29 #define ascii_isalpha(x) ascii_test(x, ASCII_ALPHA)
30 #define ascii_isalnum(x) ascii_test(x, ASCII_ALNUM)
31 #define ascii_ispunct(x) ascii_test(x, ASCII_PUNCT | ASCII_UNDERSCORE)
32
33 #define is_alpha_or_underscore(x) ascii_test(x, ASCII_ALPHA | ASCII_UNDERSCORE)
34 #define is_alnum_or_underscore(x) ascii_test(x, ASCII_ALNUM | ASCII_UNDERSCORE)
35 #define is_regex_special_char(x) ascii_test(x, ASCII_REGEX)
36 #define is_word_byte(x) !ascii_test(x, ASCII_NONWORD) // See comment in ascii.c
37
38 108592 static inline bool ascii_test(unsigned char c, AsciiCharType mask)
39 {
40 108592 return (ascii_table[c] & mask) != 0;
41 }
42
43 277 static inline bool ascii_isprint(unsigned char c)
44 {
45 277 return c >= ' ' && c <= '~';
46 }
47
48 9842 static inline bool ascii_isblank(unsigned char c)
49 {
50 9842 return c == ' ' || c == '\t';
51 }
52
53 1930 static inline bool ascii_isdigit(unsigned char c)
54 {
55 1930 return c >= '0' && c <= '9';
56 }
57
58 84 static inline bool ascii_is_digit_or_dot(unsigned char c)
59 {
60
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 84 return ascii_isdigit(c) || c == '.';
61 }
62
63 16 static inline bool ascii_is_nonspace_cntrl(unsigned char c)
64 {
65 16 return ascii_table[c] == ASCII_CNTRL;
66 }
67
68 67023 static inline unsigned char ascii_tolower(unsigned char c)
69 {
70 67023 static_assert(ASCII_UPPER == 0x20);
71 67023 return c + (ascii_table[c] & ASCII_UPPER);
72 }
73
74 334 static inline unsigned char ascii_toupper(unsigned char c)
75 {
76 334 static_assert(ASCII_LOWER << 1 == 0x20);
77 334 return c - ((ascii_table[c] & ASCII_LOWER) << 1);
78 }
79
80 NONNULL_ARGS
81 11730 static inline int ascii_strcmp_icase(const char *s1, const char *s2)
82 {
83 11730 unsigned char c1, c2;
84 19360 do {
85 19360 c1 = ascii_tolower(*s1++);
86 19360 c2 = ascii_tolower(*s2++);
87
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 19360 } while (c1 && c1 == c2);
88
89 11730 return c1 - c2;
90 }
91
92 NONNULL_ARGS
93 11264 static inline bool ascii_streq_icase(const char *s1, const char *s2)
94 {
95 11264 return ascii_strcmp_icase(s1, s2) == 0;
96 }
97
98 26 static inline size_t ascii_type_prefix_length (
99 const char *str,
100 size_t len,
101 AsciiCharType mask
102 ) {
103 26 size_t i = 0;
104
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 197 while (i < len && ascii_test(str[i], mask)) {
105 171 i++;
106 }
107 26 return i;
108 }
109
110 10300 static inline size_t ascii_blank_prefix_length(const char *str, size_t len)
111 {
112 10300 size_t i = 0;
113
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 10775 while (i < len && ascii_isblank(str[i])) {
114 475 i++;
115 }
116 10300 return i;
117 }
118
119 #endif
120