* lib: add mu_str_parse_arglist + unit tests

lib/mu-str.h

@@ -281,6 +281,21 @@ GSList* mu_str_to_list (const char *str, char sepa, gboolean strip);
 GSList* mu_str_esc_to_list (const char *str);
 
 
+
+/**
+ * Parse a list of <key>:<value> arguments, where <value> supports
+ * quoting and escaping.
+ *
+ * @param args a list of arguments
+ * @param err receives error information
+ *
+ * @return a hash table with key->value, or NULL in case of
+ * error. Free with g_hash_table_destroy.
+ */
+GHashTable* mu_str_parse_arglist (const char *args, GError **err)
+G_GNUC_WARN_UNUSED_RESULT;
+
+
 /**
  * free a GSList consisting of allocated strings
  *