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Diffstat (limited to 'src/basic/strv.h')
-rw-r--r-- | src/basic/strv.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/src/basic/strv.h b/src/basic/strv.h new file mode 100644 index 0000000..6b3e8e7 --- /dev/null +++ b/src/basic/strv.h @@ -0,0 +1,240 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include <fnmatch.h> +#include <stdarg.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> + +#include "alloc-util.h" +#include "extract-word.h" +#include "hashmap.h" +#include "macro.h" +#include "string-util.h" + +char *strv_find(char * const *l, const char *name) _pure_; +char *strv_find_case(char * const *l, const char *name) _pure_; +char *strv_find_prefix(char * const *l, const char *name) _pure_; +char *strv_find_startswith(char * const *l, const char *name) _pure_; + +#define strv_contains(l, s) (!!strv_find((l), (s))) +#define strv_contains_case(l, s) (!!strv_find_case((l), (s))) + +char **strv_free(char **l); +DEFINE_TRIVIAL_CLEANUP_FUNC(char**, strv_free); +#define _cleanup_strv_free_ _cleanup_(strv_freep) + +char **strv_free_erase(char **l); +DEFINE_TRIVIAL_CLEANUP_FUNC(char**, strv_free_erase); +#define _cleanup_strv_free_erase_ _cleanup_(strv_free_erasep) + +char **strv_copy(char * const *l); +size_t strv_length(char * const *l) _pure_; + +int strv_extend_strv(char ***a, char * const *b, bool filter_duplicates); +int strv_extend_strv_concat(char ***a, char * const *b, const char *suffix); +int strv_prepend(char ***l, const char *value); +int strv_extend(char ***l, const char *value); +int strv_extendf(char ***l, const char *format, ...) _printf_(2,0); +int strv_extend_front(char ***l, const char *value); +int strv_push(char ***l, char *value); +int strv_push_pair(char ***l, char *a, char *b); +int strv_insert(char ***l, size_t position, char *value); + +static inline int strv_push_prepend(char ***l, char *value) { + return strv_insert(l, 0, value); +} + +int strv_consume(char ***l, char *value); +int strv_consume_pair(char ***l, char *a, char *b); +int strv_consume_prepend(char ***l, char *value); + +char **strv_remove(char **l, const char *s); +char **strv_uniq(char **l); +bool strv_is_uniq(char * const *l); + +int strv_compare(char * const *a, char * const *b); +static inline bool strv_equal(char * const *a, char * const *b) { + return strv_compare(a, b) == 0; +} + +char **strv_new_internal(const char *x, ...) _sentinel_; +char **strv_new_ap(const char *x, va_list ap); +#define strv_new(...) strv_new_internal(__VA_ARGS__, NULL) + +#define STRV_IGNORE ((const char *) POINTER_MAX) + +static inline const char* STRV_IFNOTNULL(const char *x) { + return x ? x : STRV_IGNORE; +} + +static inline bool strv_isempty(char * const *l) { + return !l || !*l; +} + +char **strv_split_newlines(const char *s); + +int strv_split_full(char ***t, const char *s, const char *separators, ExtractFlags flags); +static inline char **strv_split(const char *s, const char *separators) { + char **ret; + int r; + + r = strv_split_full(&ret, s, separators, 0); + if (r < 0) + return NULL; + + return ret; +} + +/* Given a string containing white-space separated tuples of words themselves separated by ':', + * returns a vector of strings. If the second element in a tuple is missing, the corresponding + * string in the vector is an empty string. */ +int strv_split_colon_pairs(char ***t, const char *s); + +char *strv_join_full(char * const *l, const char *separator, const char *prefix, bool escape_separtor); +static inline char *strv_join(char * const *l, const char *separator) { + return strv_join_full(l, separator, NULL, false); +} + +char **strv_parse_nulstr(const char *s, size_t l); +char **strv_split_nulstr(const char *s); +int strv_make_nulstr(char * const *l, char **p, size_t *n); + +static inline int strv_from_nulstr(char ***a, const char *nulstr) { + char **t; + + t = strv_split_nulstr(nulstr); + if (!t) + return -ENOMEM; + *a = t; + return 0; +} + +bool strv_overlap(char * const *a, char * const *b) _pure_; + +#define STRV_FOREACH(s, l) \ + for ((s) = (l); (s) && *(s); (s)++) + +#define STRV_FOREACH_BACKWARDS(s, l) \ + for (s = ({ \ + typeof(l) _l = l; \ + _l ? _l + strv_length(_l) - 1U : NULL; \ + }); \ + (l) && ((s) >= (l)); \ + (s)--) + +#define STRV_FOREACH_PAIR(x, y, l) \ + for ((x) = (l), (y) = (x) ? (x+1) : NULL; (x) && *(x) && *(y); (x) += 2, (y) = (x + 1)) + +char **strv_sort(char **l); +void strv_print(char * const *l); + +#define strv_from_stdarg_alloca(first) \ + ({ \ + char **_l; \ + \ + if (!first) \ + _l = (char**) &first; \ + else { \ + size_t _n; \ + va_list _ap; \ + \ + _n = 1; \ + va_start(_ap, first); \ + while (va_arg(_ap, char*)) \ + _n++; \ + va_end(_ap); \ + \ + _l = newa(char*, _n+1); \ + _l[_n = 0] = (char*) first; \ + va_start(_ap, first); \ + for (;;) { \ + _l[++_n] = va_arg(_ap, char*); \ + if (!_l[_n]) \ + break; \ + } \ + va_end(_ap); \ + } \ + _l; \ + }) + +#define STR_IN_SET(x, ...) strv_contains(STRV_MAKE(__VA_ARGS__), x) +#define STRPTR_IN_SET(x, ...) \ + ({ \ + const char* _x = (x); \ + _x && strv_contains(STRV_MAKE(__VA_ARGS__), _x); \ + }) + +#define STRCASE_IN_SET(x, ...) strv_contains_case(STRV_MAKE(__VA_ARGS__), x) +#define STRCASEPTR_IN_SET(x, ...) \ + ({ \ + const char* _x = (x); \ + _x && strv_contains_case(STRV_MAKE(__VA_ARGS__), _x); \ + }) + +#define STARTSWITH_SET(p, ...) \ + ({ \ + const char *_p = (p); \ + char *_found = NULL, **_i; \ + STRV_FOREACH(_i, STRV_MAKE(__VA_ARGS__)) { \ + _found = startswith(_p, *_i); \ + if (_found) \ + break; \ + } \ + _found; \ + }) + +#define ENDSWITH_SET(p, ...) \ + ({ \ + const char *_p = (p); \ + char *_found = NULL, **_i; \ + STRV_FOREACH(_i, STRV_MAKE(__VA_ARGS__)) { \ + _found = endswith(_p, *_i); \ + if (_found) \ + break; \ + } \ + _found; \ + }) + +#define FOREACH_STRING(x, y, ...) \ + for (char **_l = STRV_MAKE(({ x = y; }), ##__VA_ARGS__); \ + x; \ + x = *(++_l)) + +char **strv_reverse(char **l); +char **strv_shell_escape(char **l, const char *bad); + +bool strv_fnmatch_full(char* const* patterns, const char *s, int flags, size_t *matched_pos); +static inline bool strv_fnmatch(char* const* patterns, const char *s) { + return strv_fnmatch_full(patterns, s, 0, NULL); +} + +static inline bool strv_fnmatch_or_empty(char* const* patterns, const char *s, int flags) { + assert(s); + return strv_isempty(patterns) || + strv_fnmatch_full(patterns, s, flags, NULL); +} + +char ***strv_free_free(char ***l); +DEFINE_TRIVIAL_CLEANUP_FUNC(char***, strv_free_free); + +char **strv_skip(char **l, size_t n); + +int strv_extend_n(char ***l, const char *value, size_t n); + +int fputstrv(FILE *f, char * const *l, const char *separator, bool *space); + +#define strv_free_and_replace(a, b) \ + ({ \ + strv_free(a); \ + (a) = (b); \ + (b) = NULL; \ + 0; \ + }) + +extern const struct hash_ops string_strv_hash_ops; +int _string_strv_hashmap_put(Hashmap **h, const char *key, const char *value HASHMAP_DEBUG_PARAMS); +int _string_strv_ordered_hashmap_put(OrderedHashmap **h, const char *key, const char *value HASHMAP_DEBUG_PARAMS); +#define string_strv_hashmap_put(h, k, v) _string_strv_hashmap_put(h, k, v HASHMAP_DEBUG_SRC_ARGS) +#define string_strv_ordered_hashmap_put(h, k, v) _string_strv_ordered_hashmap_put(h, k, v HASHMAP_DEBUG_SRC_ARGS) |