m_option: add function to check whether parameters are required

To avoid that it will be duplicated with m_option.c and m_config.c.

3 files changed, 11 insertions, 4 deletions

diff --git a/core/m_config.c b/core/m_config.c
index 65d60bdab9..3781a92b90 100644
--- a/core/m_config.c
+++ b/core/m_config.c
@@ -585,10 +585,7 @@ int m_config_option_requires_param(struct m_config *config, bstr name)
     if (opt) {
         if (bstr_endswith0(name, "-clr"))
             return 0;
-        if (((opt->flags & M_OPT_OPTIONAL_PARAM) ||
-             (opt->type->flags & M_OPT_TYPE_OPTIONAL_PARAM)))
-            return 0;
-        return 1;
+        return m_option_required_params(opt);
     }
     return M_OPT_UNKNOWN;
 }
diff --git a/core/m_option.c b/core/m_option.c
index 2feaa5a4b1..36baeb7444 100644
--- a/core/m_option.c
+++ b/core/m_option.c
@@ -59,6 +59,14 @@ char *m_option_strerror(int code)
     }
 }
 
+int m_option_required_params(const m_option_t *opt)
+{
+    if (((opt->flags & M_OPT_OPTIONAL_PARAM) ||
+            (opt->type->flags & M_OPT_TYPE_OPTIONAL_PARAM)))
+        return 0;
+    return 1;
+}
+
 static const struct m_option *m_option_list_findb(const struct m_option *list,
                                                   struct bstr name)
 {
diff --git a/core/m_option.h b/core/m_option.h
index dd1dbd3d75..0026406569 100644
--- a/core/m_option.h
+++ b/core/m_option.h
@@ -464,6 +464,8 @@ static inline void m_option_free(const m_option_t *opt, void *dst)
         opt->type->free(dst);
 }
 
+int m_option_required_params(const m_option_t *opt);
+
 // Cause a compilation warning if typeof(expr) != type.
 // Should be used with pointer types only.
 #define MP_EXPECT_TYPE(type, expr) (0 ? (type)0 : (expr))