]>
git.ipfire.org Git - thirdparty/systemd.git/blob - src/basic/string-table.h
1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
11 #include "parse-util.h"
12 #include "string-util.h"
14 ssize_t
string_table_lookup(const char * const *table
, size_t len
, const char *key
);
16 /* For basic lookup tables with strictly enumerated entries */
17 #define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
18 scope const char* name##_to_string(type i) { \
19 if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
21 return name##_table[i]; \
24 #define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
25 scope type name##_from_string(const char *s) { \
26 return (type) string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \
29 #define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN(name,type,yes,scope) \
30 scope type name##_from_string(const char *s) { \
33 int b = parse_boolean(s); \
38 return (type) string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \
41 #define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING_FALLBACK(name,type,max,scope) \
42 scope int name##_to_string_alloc(type i, char **str) { \
44 if (i < 0 || i > max) \
46 if (i < (type) ELEMENTSOF(name##_table) && name##_table[i]) { \
47 s = strdup(name##_table[i]); \
50 } else if (asprintf(&s, "%i", i) < 0) \
56 #define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_FALLBACK(name,type,max,scope) \
57 scope type name##_from_string(const char *s) { \
62 i = (type) string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \
65 if (safe_atou(s, &u) < 0) \
72 #define _DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
73 _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
74 _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope)
76 #define _DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(name,type,yes,scope) \
77 _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
78 _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN(name,type,yes,scope)
80 #define DEFINE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,)
81 #define DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,)
82 #define DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,)
83 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,static)
84 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,static)
85 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,static)
87 #define DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(name,type,yes) _DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(name,type,yes,)
88 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(name,type,yes) _DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(name,type,yes,static)
89 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN(name,type,yes) \
90 _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_BOOLEAN(name,type,yes,static)
92 /* For string conversions where numbers are also acceptable */
93 #define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
94 _DEFINE_STRING_TABLE_LOOKUP_TO_STRING_FALLBACK(name,type,max,) \
95 _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_FALLBACK(name,type,max,)
96 #define DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_WITH_FALLBACK(name,type,max) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_FALLBACK(name,type,max,)
98 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING_FALLBACK(name,type,max) \
99 _DEFINE_STRING_TABLE_LOOKUP_TO_STRING_FALLBACK(name,type,max,static)
100 #define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING_FALLBACK(name,type,max) \
101 _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING_FALLBACK(name,type,max,static)
103 #define DUMP_STRING_TABLE(name,type,max) \
106 for (type _k = 0; _k < (max); _k++) { \
108 _t = name##_to_string(_k); \
111 fputs_unlocked(_t, stdout); \
112 fputc_unlocked('\n', stdout); \
114 funlockfile(stdout); \