src/basic/nulstr-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <errno.h>
   5 #include <macro.h>
   6 #include <stdbool.h>
   7 #include <string.h>
   8
   9 #include "set.h"
  10
  11 #define NULSTR_FOREACH(i, l)                                    \
  12         for (typeof(*(l)) *(i) = (l); (i) && *(i); (i) = strchr((i), 0)+1)
  13
  14 #define NULSTR_FOREACH_PAIR(i, j, l)                             \
  15         for (typeof(*(l)) *(i) = (l), *(j) = strchr((i), 0)+1; (i) && *(i); (i) = strchr((j), 0)+1, (j) = *(i) ? strchr((i), 0)+1 : (i))
  16
  17 const char* nulstr_get(const char *nulstr, const char *needle);
  18 static inline bool nulstr_contains(const char *nulstr, const char *needle) {
  19         return nulstr_get(nulstr, needle);
  20 }
  21
  22 char** strv_parse_nulstr_full(const char *s, size_t l, bool drop_trailing_nuls);
  23 static inline char** strv_parse_nulstr(const char *s, size_t l) {
  24         return strv_parse_nulstr_full(s, l, false);
  25 }
  26 char** strv_split_nulstr(const char *s);
  27 static inline int strv_from_nulstr(char ***ret, const char *nulstr) {
  28         char **t;
  29
  30         assert(ret);
  31
  32         t = strv_split_nulstr(nulstr);
  33         if (!t)
  34                 return -ENOMEM;
  35
  36         *ret = t;
  37         return 0;
  38 }
  39
  40 int strv_make_nulstr(char * const *l, char **p, size_t *n);
  41 int set_make_nulstr(Set *s, char **ret, size_t *ret_size);