--- a/th_args.h	Fri Apr 07 02:49:08 2017 +0300
+++ b/th_args.h	Wed May 10 21:00:37 2017 +0300
@@ -5,6 +5,8 @@
  *
  * Please read file 'COPYING' for information on license and distribution.
  */
+/// @file
+/// @brief Simple commandline argument processing function
 #ifndef TH_ARGS
 #define TH_ARGS
 
@@ -15,27 +17,29 @@
 extern "C" {
 #endif
 
-/* Option flags
+/** @def Option argument flags
  */
-#define OPT_NONE             (0)    // Simple option with no arguments
-#define OPT_ARGREQ           (1)    // Option requires an argument
-#define OPT_ARGMASK          (1)    // Mask for option argument flags
+#define OPT_NONE             (0)    ///< Simple option with no arguments
+#define OPT_ARGREQ           (1)    ///< Option requires an argument
+#define OPT_ARGMASK          (1)    ///< Mask for option argument flags
 
-#define OPTH_BAILOUT         0x0001 // Bail out on errors
-#define OPTH_ONLY_OPTS       0x0010 // Handle only options
-#define OPTH_ONLY_OTHER      0x0020 // Handle only "non-options"
-#define OPTH_ONLY_MASK       0x00f0 // Mask
+/** @def Option processing flags
+ */
+#define OPTH_BAILOUT         0x0001 ///< Bail out on errors
+#define OPTH_ONLY_OPTS       0x0010 ///< Handle only options
+#define OPTH_ONLY_OTHER      0x0020 ///< Handle only "non-options"
+#define OPTH_ONLY_MASK       0x00f0 ///< Mask
 
 
-/* Option argument structure
+/** Option argument structure
  */
 typedef struct
 {
-    int id;
-    char o_short;
-    char *o_long;
-    char *desc;
-    int flags;
+    int id;           ///< Option ID (should be unique for each option)
+    char o_short;     ///< Short option name (one character)
+    char *o_long;     ///< Long option name
+    char *desc;       ///< Option description
+    int flags;        ///< Flags (see OPT_*)
 } th_optarg;