@@ -8,9 +8,9 @@
 
 /* input types */
 
 typedef struct kcli_opt {
-	codepoint id;
+	rune id;
 	const char* name;
 	enum kcli_opt_kind {
 		kcli_opt_none /* flag is disabled and hidden */,
 		kcli_opt_string /* flag takes a string argument */,
@@ -49,11 +49,14 @@
 			kcli_param_hex = kcli_param_int | 16,
 	} kind;
 	enum kcli_rule {
 		kcli_rule_forbidden,
-		kcli_rule_optional,
 		kcli_rule_required,
+		kcli_rule_optional,
+		kcli_rule_overflow,
 	} rule;
+	void* val;
+	const char* desc;
 } kcli_param;
 
 typedef struct kcli_set {
 	const char*       name;
@@ -71,8 +74,9 @@
 	kcli_cond_extra /* parse succeded, but arguments or
 	                   flags were left over */,
 	kcli_cond_fail /* unspecified error */,
 	kcli_cond_parse /* bad syntax, parse failed */,
+	kcli_cond_overlong /* a string in the configuration structures is longer than allowed */,
 } kcli_cond;
 
 typedef enum kcli_flag {
 	kcli_flag_off = 0,