/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #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_; char *strv_find_startswith(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 strv_length(char * const *l) _pure_; int strv_extend_strv(char ***a, char **b); int strv_extend_strv_concat(char ***a, char **b, const char *suffix); int strv_extend(char ***l, const char *value); int strv_extendf(char ***l, const char *format, ...) _printf_(2,0); int strv_push(char ***l, char *value); int strv_push_prepend(char ***l, char *value); int strv_consume(char ***l, char *value); int strv_consume_prepend(char ***l, char *value); char **strv_remove(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_newlines(const char *s); int strv_split_quoted(char ***t, const char *s, bool relax); char *strv_join(char **l, const char *separator); char *strv_join_quoted(char **l); 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 _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 FOREACH_STRING(x, ...) \ for (char **_l = ({ \ char **_ll = STRV_MAKE(__VA_ARGS__); \ x = _ll ? _ll[0] : NULL; \ _ll; \ }); \ _l && *_l; \ x = ({ \ _l ++; \ _l[0]; \ }))