--- a/th_args.c	Tue Jan 02 22:57:47 2018 +0200
+++ b/th_args.c	Tue Jan 02 23:09:29 2018 +0200
@@ -23,15 +23,15 @@
  * @param opts options list array
  * @param nopts number of elements in options list array
  * @param handle_option function pointer to callback that handles option arguments
- * @param doProcess if true, actually handle the argument, aka call the handle_option() function. if false, only validity of options are checked.
- * @param isLong true if the option is a --long-format one
+ * @param doProcess if TRUE, actually handle the argument, aka call the handle_option() function. if FALSE, only validity of options are checked.
+ * @param isLong TRUE if the option is a --long-format one
  */
-static bool th_args_process_opt(
+static BOOL th_args_process_opt(
     char *currArg, int *argIndex,
     int argc, char *argv[],
     const th_optarg opts[], int nopts,
-    bool (*handle_option)(int id, char *, char *),
-    bool doProcess, bool isLong)
+    BOOL (*handle_option)(int id, char *, char *),
+    BOOL doProcess, BOOL isLong)
 {
     const th_optarg *opt = NULL;
     char *optArg = NULL;
@@ -85,13 +85,13 @@
                 THERR("Option '%s%s' requires an argument.\n",
                     isLong ? "--" : "-",
                     currArg);
-                return false;
+                return FALSE;
             }
         }
 
         // Option was given succesfully, try to process it
         if (doProcess && !handle_option(opt->id, optArg, currArg))
-            return false;
+            return FALSE;
     }
     else
     {
@@ -100,10 +100,10 @@
             isLong ? "--" : "-",
             currArg);
 
-        return false;
+        return FALSE;
     }
 
-    return true;
+    return TRUE;
 }
 
 
@@ -118,15 +118,15 @@
  * @param handle_option callback function
  * @param handle_other callback function
  * @param flags processing flags
- * @return return true if all is well
+ * @return return TRUE if all is well
  */
-bool th_args_process(int argc, char *argv[],
+BOOL th_args_process(int argc, char *argv[],
      const th_optarg *opts, const int nopts,
-     bool(*handle_option)(int id, char *, char *),
-     bool(*handle_other)(char *), const int flags)
+     BOOL(*handle_option)(int id, char *, char *),
+     BOOL(*handle_other)(char *), const int flags)
 {
     int argIndex, handleFlags = flags & OPTH_ONLY_MASK;
-    bool optionsOK = true, endOfOptions = false;
+    BOOL optionsOK = TRUE, endOfOptions = FALSE;
 
     for (argIndex = 1; argIndex < argc; argIndex++)
     {
@@ -134,8 +134,8 @@
         if (*str == '-' && !endOfOptions)
         {
             // Should we process options?
-            bool doProcess = (handleFlags & OPTH_ONLY_OPTS) || handleFlags == 0;
-            bool isLong;
+            BOOL doProcess = (handleFlags & OPTH_ONLY_OPTS) || handleFlags == 0;
+            BOOL isLong;
 
             str++;
             if (*str == '-')
@@ -144,19 +144,19 @@
                 str++;
                 if (*str == 0)
                 {
-                    endOfOptions = true;
+                    endOfOptions = TRUE;
                     continue;
                 }
 
                 // We have a long option
-                isLong = true;
+                isLong = TRUE;
             }
             else
-                isLong = false;
+                isLong = FALSE;
 
             if (!th_args_process_opt(str, &argIndex, argc, argv,
                 opts, nopts, handle_option, doProcess, isLong))
-                optionsOK = false;
+                optionsOK = FALSE;
         }
         else
         if (handleFlags == OPTH_ONLY_OTHER || handleFlags == 0)
@@ -166,13 +166,13 @@
                 (handle_other != NULL && !handle_other(str)))
             {
                 THERR("Invalid argument '%s'\n", str);
-                optionsOK = false;
+                optionsOK = FALSE;
             }
         }
 
         // Check if we bail out on invalid argument
         if (!optionsOK && (flags & OPTH_BAILOUT))
-            return false;
+            return FALSE;
     }
 
     return optionsOK;