strv: add calls to add two entries to an strv at once

[elogind.git] / src / shared / strv.h

diff --git a/src/shared/strv.h b/src/shared/strv.h
index 4d117f82c53e8eaad2177a998af1ccacbc03c66e..2c0280b71307ccab1624ef2ff196cb62c1f8ba47 100644 (file)
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -28,24 +28,31 @@
 
 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_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_;
 
-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_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_pair(char ***l, char *a, char *b);
+int strv_push_prepend(char ***l, char *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_remove_prefix(char **l, const char *s);
 char **strv_uniq(char **l);
 
+bool strv_equal(char **a, char **b);
+
 #define strv_contains(l, s) (!!strv_find((l), (s)))
 
 char **strv_new(const char *x, ...) _sentinel_;
@@ -60,9 +67,10 @@ static inline bool strv_isempty(char * const *l) {
 }
 
 char **strv_split(const char *s, const char *separator);
-char **strv_split_quoted(const char *s);
 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);
 
@@ -75,11 +83,59 @@ bool strv_overlap(char **a, char **b) _pure_;
         for ((s) = (l); (s) && *(s); (s)++)
 
 #define STRV_FOREACH_BACKWARDS(s, l)            \
-        for (; (l) && ((s) >= (l)); (s)--)
+        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];                                       \
+        }))