1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include "alloc-util.h"
#include "macro.h"
#include "string-util-fundamental.h"
/* What is interpreted as whitespace? */
#define WHITESPACE " \t\n\r"
#define NEWLINE "\n\r"
#define QUOTES "\"\'"
#define COMMENTS "#;"
#define GLOB_CHARS "*?["
#define DIGITS "0123456789"
#define LOWERCASE_LETTERS "abcdefghijklmnopqrstuvwxyz"
#define UPPERCASE_LETTERS "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define LETTERS LOWERCASE_LETTERS UPPERCASE_LETTERS
#define ALPHANUMERICAL LETTERS DIGITS
#define HEXDIGITS DIGITS "abcdefABCDEF"
static inline char* strstr_ptr(const char *haystack, const char *needle) {
if (!haystack || !needle)
return NULL;
return strstr(haystack, needle);
}
static inline const char* strempty(const char *s) {
return s ?: "";
}
static inline const char* strnull(const char *s) {
return s ?: "(null)";
}
static inline const char *strna(const char *s) {
return s ?: "n/a";
}
static inline const char* true_false(bool b) {
return b ? "true" : "false";
}
static inline const char* plus_minus(bool b) {
return b ? "+" : "-";
}
static inline const char* one_zero(bool b) {
return b ? "1" : "0";
}
static inline const char* enable_disable(bool b) {
return b ? "enable" : "disable";
}
static inline const char *empty_to_null(const char *p) {
return isempty(p) ? NULL : p;
}
static inline const char *empty_to_dash(const char *str) {
return isempty(str) ? "-" : str;
}
static inline bool empty_or_dash(const char *str) {
return !str ||
str[0] == 0 ||
(str[0] == '-' && str[1] == 0);
}
static inline const char *empty_or_dash_to_null(const char *p) {
return empty_or_dash(p) ? NULL : p;
}
char *first_word(const char *s, const char *word) _pure_;
char *strnappend(const char *s, const char *suffix, size_t length);
char *strjoin_real(const char *x, ...) _sentinel_;
#define strjoin(a, ...) strjoin_real((a), __VA_ARGS__, NULL)
#define strjoina(a, ...) \
({ \
const char *_appendees_[] = { a, __VA_ARGS__ }; \
char *_d_, *_p_; \
size_t _len_ = 0; \
size_t _i_; \
for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
_len_ += strlen(_appendees_[_i_]); \
_p_ = _d_ = newa(char, _len_ + 1); \
for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \
_p_ = stpcpy(_p_, _appendees_[_i_]); \
*_p_ = 0; \
_d_; \
})
char *strstrip(char *s);
char *delete_chars(char *s, const char *bad);
char *delete_trailing_chars(char *s, const char *bad);
char *truncate_nl(char *s);
static inline char *skip_leading_chars(const char *s, const char *bad) {
if (!s)
return NULL;
if (!bad)
bad = WHITESPACE;
return (char*) s + strspn(s, bad);
}
char ascii_tolower(char x);
char *ascii_strlower(char *s);
char *ascii_strlower_n(char *s, size_t n);
char ascii_toupper(char x);
char *ascii_strupper(char *s);
int ascii_strcasecmp_n(const char *a, const char *b, size_t n);
int ascii_strcasecmp_nn(const char *a, size_t n, const char *b, size_t m);
bool chars_intersect(const char *a, const char *b) _pure_;
static inline bool _pure_ in_charset(const char *s, const char* charset) {
assert(s);
assert(charset);
return s[strspn(s, charset)] == '\0';
}
bool string_has_cc(const char *p, const char *ok) _pure_;
char *ellipsize_mem(const char *s, size_t old_length_bytes, size_t new_length_columns, unsigned percent);
static inline char *ellipsize(const char *s, size_t length, unsigned percent) {
return ellipsize_mem(s, strlen(s), length, percent);
}
char *cellescape(char *buf, size_t len, const char *s);
/* This limit is arbitrary, enough to give some idea what the string contains */
#define CELLESCAPE_DEFAULT_LENGTH 64
char* strshorten(char *s, size_t l);
char *strreplace(const char *text, const char *old_string, const char *new_string);
char *strip_tab_ansi(char **ibuf, size_t *_isz, size_t highlight[2]);
char *strextend_with_separator_internal(char **x, const char *separator, ...) _sentinel_;
#define strextend_with_separator(x, separator, ...) strextend_with_separator_internal(x, separator, __VA_ARGS__, NULL)
#define strextend(x, ...) strextend_with_separator_internal(x, NULL, __VA_ARGS__, NULL)
char *strrep(const char *s, unsigned n);
int split_pair(const char *s, const char *sep, char **l, char **r);
int free_and_strdup(char **p, const char *s);
static inline int free_and_strdup_warn(char **p, const char *s) {
if (free_and_strdup(p, s) < 0)
return log_oom();
return 0;
}
int free_and_strndup(char **p, const char *s, size_t l);
bool string_is_safe(const char *p) _pure_;
static inline size_t strlen_ptr(const char *s) {
if (!s)
return 0;
return strlen(s);
}
DISABLE_WARNING_STRINGOP_TRUNCATION;
static inline void strncpy_exact(char *buf, const char *src, size_t buf_len) {
strncpy(buf, src, buf_len);
}
REENABLE_WARNING;
/* Like startswith(), but operates on arbitrary memory blocks */
static inline void *memory_startswith(const void *p, size_t sz, const char *token) {
assert(token);
size_t n = strlen(token);
if (sz < n)
return NULL;
assert(p);
if (memcmp(p, token, n) != 0)
return NULL;
return (uint8_t*) p + n;
}
/* Like startswith_no_case(), but operates on arbitrary memory blocks.
* It works only for ASCII strings.
*/
static inline void *memory_startswith_no_case(const void *p, size_t sz, const char *token) {
assert(token);
size_t n = strlen(token);
if (sz < n)
return NULL;
assert(p);
for (size_t i = 0; i < n; i++)
if (ascii_tolower(((char *)p)[i]) != ascii_tolower(token[i]))
return NULL;
return (uint8_t*) p + n;
}
static inline char* str_realloc(char **p) {
/* Reallocate *p to actual size */
if (!*p)
return NULL;
char *t = realloc(*p, strlen(*p) + 1);
if (!t)
return NULL;
return (*p = t);
}
char* string_erase(char *x);
int string_truncate_lines(const char *s, size_t n_lines, char **ret);
int string_extract_line(const char *s, size_t i, char **ret);
int string_contains_word_strv(const char *string, const char *separators, char **words, const char **ret_word);
static inline int string_contains_word(const char *string, const char *separators, const char *word) {
return string_contains_word_strv(string, separators, STRV_MAKE(word), NULL);
}
|
