src/shared/strv.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #ifndef foostrvhfoo
   4 #define foostrvhfoo
   5
   6 /***
   7   This file is part of systemd.
   8
   9   Copyright 2010 Lennart Poettering
  10
  11   systemd is free software; you can redistribute it and/or modify it
  12   under the terms of the GNU Lesser General Public License as published by
  13   the Free Software Foundation; either version 2.1 of the License, or
  14   (at your option) any later version.
  15
  16   systemd is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   Lesser General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  23 ***/
  24
  25 #include <stdarg.h>
  26 #include <stdbool.h>
  27
  28 #include "macro.h"
  29
  30 char *strv_find(char **l, const char *name);
  31 char *strv_find_prefix(char **l, const char *name);
  32
  33 void strv_free(char **l);
  34 char **strv_copy(char **l) _malloc_;
  35 unsigned strv_length(char **l);
  36
  37 char **strv_merge(char **a, char **b);
  38 char **strv_merge_concat(char **a, char **b, const char *suffix);
  39 char **strv_append(char **l, const char *s);
  40
  41 char **strv_remove(char **l, const char *s);
  42 char **strv_remove_prefix(char **l, const char *s);
  43 char **strv_uniq(char **l);
  44
  45 #define strv_contains(l, s) (!!strv_find((l), (s)))
  46
  47 char **strv_new(const char *x, ...) _sentinel_ _malloc_;
  48 char **strv_new_ap(const char *x, va_list ap) _malloc_;
  49
  50 static inline bool strv_isempty(char **l) {
  51         return !l || !*l;
  52 }
  53
  54 char **strv_split(const char *s, const char *separator) _malloc_;
  55 char **strv_split_quoted(const char *s) _malloc_;
  56
  57 char *strv_join(char **l, const char *separator) _malloc_;
  58
  59 char **strv_env_merge(unsigned n_lists, ...);
  60 char **strv_env_delete(char **x, unsigned n_lists, ...);
  61
  62 char **strv_env_set(char **x, const char *p);
  63 char **strv_env_unset(char **l, const char *p);
  64
  65 char *strv_env_get_with_length(char **l, const char *name, size_t k);
  66 char *strv_env_get(char **x, const char *n);
  67
  68 char **strv_env_clean(char **l);
  69
  70 char **strv_parse_nulstr(const char *s, size_t l);
  71
  72 bool strv_overlap(char **a, char **b);
  73
  74 #define STRV_FOREACH(s, l)                      \
  75         for ((s) = (l); (s) && *(s); (s)++)
  76
  77 #define STRV_FOREACH_BACKWARDS(s, l)            \
  78         for (; (l) && ((s) >= (l)); (s)--)
  79
  80 #endif