basic: add STRCASE_IN_SET() which is to STR_IN_SET() what strcaseeq() is to streq()

src/basic/hostname-util.c

@@ -12,6 +12,7 @@
 #include "hostname-util.h"
 #include "macro.h"
 #include "string-util.h"
+#include "strv.h"
 
 bool hostname_is_set(void) {
         struct utsname u;
@@ -180,14 +181,16 @@ bool is_localhost(const char *hostname) {
         /* This tries to identify local host and domain names
          * described in RFC6761 plus the redhatism of localdomain */
 
-        return strcaseeq(hostname, "localhost") ||
-               strcaseeq(hostname, "localhost.") ||
-               strcaseeq(hostname, "localhost.localdomain") ||
-               strcaseeq(hostname, "localhost.localdomain.") ||
-               endswith_no_case(hostname, ".localhost") ||
-               endswith_no_case(hostname, ".localhost.") ||
-               endswith_no_case(hostname, ".localhost.localdomain") ||
-               endswith_no_case(hostname, ".localhost.localdomain.");
+        return STRCASE_IN_SET(
+                        hostname,
+                        "localhost",
+                        "localhost.",
+                        "localhost.localdomain",
+                        "localhost.localdomain.") ||
+                endswith_no_case(hostname, ".localhost") ||
+                endswith_no_case(hostname, ".localhost.") ||
+                endswith_no_case(hostname, ".localhost.localdomain") ||
+                endswith_no_case(hostname, ".localhost.localdomain.");
 }
 
 bool is_gateway_hostname(const char *hostname) {

src/basic/parse-util.c

@@ -18,14 +18,28 @@
 #include "process-util.h"
 #include "stat-util.h"
 #include "string-util.h"
+#include "strv.h"
 
 int parse_boolean(const char *v) {
         if (!v)
                 return -EINVAL;
 
-        if (streq(v, "1") || strcaseeq(v, "yes") || strcaseeq(v, "y") || strcaseeq(v, "true") || strcaseeq(v, "t") || strcaseeq(v, "on"))
+        if (STRCASE_IN_SET(v,
+                           "1",
+                           "yes",
+                           "y",
+                           "true",
+                           "t",
+                           "on"))
                 return 1;
-        else if (streq(v, "0") || strcaseeq(v, "no") || strcaseeq(v, "n") || strcaseeq(v, "false") || strcaseeq(v, "f") || strcaseeq(v, "off"))
+
+        if (STRCASE_IN_SET(v,
+                           "0",
+                           "no",
+                           "n",
+                           "false",
+                           "f",
+                           "off"))
                 return 0;
 
         return -EINVAL;

src/basic/strv.c

@@ -28,6 +28,18 @@ char *strv_find(char * const *l, const char *name) {
         return NULL;
 }
 
+char *strv_find_case(char * const *l, const char *name) {
+        char * const *i;
+
+        assert(name);
+
+        STRV_FOREACH(i, l)
+                if (strcaseeq(*i, name))
+                        return *i;
+
+        return NULL;
+}
+
 char *strv_find_prefix(char * const *l, const char *name) {
         char * const *i;
 

src/basic/strv.h

@@ -14,9 +14,13 @@
 #include "string-util.h"
 
 char *strv_find(char * const *l, const char *name) _pure_;
+char *strv_find_case(char * const *l, const char *name) _pure_;
 char *strv_find_prefix(char * const *l, const char *name) _pure_;
 char *strv_find_startswith(char * const *l, const char *name) _pure_;
 
+#define strv_contains(l, s) (!!strv_find((l), (s)))
+#define strv_contains_case(l, s) (!!strv_find_case((l), (s)))
+
 char **strv_free(char **l);
 DEFINE_TRIVIAL_CLEANUP_FUNC(char**, strv_free);
 #define _cleanup_strv_free_ _cleanup_(strv_freep)
@@ -54,8 +58,6 @@ static inline bool strv_equal(char * const *a, char * const *b) {
         return strv_compare(a, b) == 0;
 }
 
-#define strv_contains(l, s) (!!strv_find((l), (s)))
-
 char **strv_new_internal(const char *x, ...) _sentinel_;
 char **strv_new_ap(const char *x, va_list ap);
 #define strv_new(...) strv_new_internal(__VA_ARGS__, NULL)
@@ -156,6 +158,13 @@ void strv_print(char * const *l);
                 _x && strv_contains(STRV_MAKE(__VA_ARGS__), _x); \
         })
 
+#define STRCASE_IN_SET(x, ...) strv_contains_case(STRV_MAKE(__VA_ARGS__), x)
+#define STRCASEPTR_IN_SET(x, ...)                                    \
+        ({                                                       \
+                const char* _x = (x);                            \
+                _x && strv_contains_case(STRV_MAKE(__VA_ARGS__), _x); \
+        })
+
 #define STARTSWITH_SET(p, ...)                                  \
         ({                                                      \
                 const char *_p = (p);                           \

src/shared/calendarspec.c

@@ -17,6 +17,7 @@
 #include "process-util.h"
 #include "sort-util.h"
 #include "string-util.h"
+#include "strv.h"
 #include "time-util.h"
 
 #define BITS_WEEKDAYS 127
@@ -961,9 +962,10 @@ int calendar_spec_from_string(const char *p, CalendarSpec **spec) {
                 if (r < 0)
                         return r;
 
-        } else if (strcaseeq(p, "annually") ||
-                   strcaseeq(p, "yearly") ||
-                   strcaseeq(p, "anually") /* backwards compatibility */ ) {
+        } else if (STRCASE_IN_SET(p,
+                                  "annually",
+                                  "yearly",
+                                  "anually") /* backwards compatibility */ ) {
 
                 r = const_chain(1, &c->month);
                 if (r < 0)
@@ -1022,10 +1024,11 @@ int calendar_spec_from_string(const char *p, CalendarSpec **spec) {
                 if (r < 0)
                         return r;
 
-        } else if (strcaseeq(p, "biannually") ||
-                   strcaseeq(p, "bi-annually") ||
-                   strcaseeq(p, "semiannually") ||
-                   strcaseeq(p, "semi-annually")) {
+        } else if (STRCASE_IN_SET(p,
+                                  "biannually",
+                                  "bi-annually",
+                                  "semiannually",
+                                  "semi-annually")) {
 
                 r = const_chain(1, &c->month);
                 if (r < 0)