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Diffstat (limited to 'src/install/strv.h')
| -rw-r--r-- | src/install/strv.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/install/strv.h b/src/install/strv.h new file mode 100644 index 0000000..cf99f5d --- /dev/null +++ b/src/install/strv.h @@ -0,0 +1,118 @@ +#pragma once + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <stdarg.h> +#include <stdbool.h> + +#include "util.h" + +char *strv_find(char **l, const char *name) _pure_; +char *strv_find_prefix(char **l, const char *name) _pure_; + +void strv_free(char **l); +DEFINE_TRIVIAL_CLEANUP_FUNC(char **, strv_free); +#define _cleanup_strv_free_ _cleanup_(strv_freep) + +char **strv_copy(char *const *l); +unsigned int strv_length(char *const *l) _pure_; + +char **strv_merge(char **a, char **b); +char **strv_merge_concat(char **a, char **b, const char *suffix); +char **strv_append(char **l, const char *s); +int strv_extend(char ***l, const char *value); +int strv_push(char ***l, char *value); + +char **strv_remove(char **l, const char *s); +char **strv_remove_prefix(char **l, const char *s); +char **strv_uniq(char **l); + +#define strv_contains(l, s) (!!strv_find((l), (s))) + +char **strv_new(const char *x, ...) _sentinel_; +char **strv_new_ap(const char *x, va_list ap); + +static inline const char *STRV_IFNOTNULL(const char *x) +{ + return x ? x : (const char *)-1; +} + +static inline bool strv_isempty(char *const *l) +{ + return !l || !*l; +} + +char **strv_split(const char *s, const char *separator); +char **strv_split_quoted(const char *s); +char **strv_split_newlines(const char *s); + +char *strv_join(char **l, const char *separator); + +char **strv_parse_nulstr(const char *s, size_t l); +char **strv_split_nulstr(const char *s); + +bool strv_overlap(char **a, char **b) _pure_; + +#define STRV_FOREACH(s, l) \ + for ((s) = (l); (s) && *(s); (s)++) + +#define STRV_FOREACH_BACKWARDS(s, l) \ + STRV_FOREACH(s, l) \ + ; \ + for ((s)--; (l) && ((s) >= (l)); (s)--) + +#define STRV_FOREACH_PAIR(x, y, l) \ + for ((x) = (l), (y) = (x+1); (x) && *(x) && *(y); (x) += 2, (y) = (x + 1)) + +char **strv_sort(char **l); +void strv_print(char **l); + +#define STRV_MAKE(...) ((char**) ((const char*[]) { __VA_ARGS__, NULL })) + +#define STRV_MAKE_EMPTY ((char*[1]) { NULL }) + +#define strv_from_stdarg_alloca(first) \ + ({ \ + char **_l; \ + \ + if (!first) \ + _l = (char**) &first; \ + else { \ + unsigned int _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; \ + }) |