Disable nick and channel colors with hash bound 0

catgirl.1

@@ -1,4 +1,4 @@
-.Dd February 15, 2021
+.Dd March  8, 2021
 .Dt CATGIRL 1
 .Os
 .
@@ -96,12 +96,15 @@ The default is the first available of
 .
 .It Fl H Ar init,bound , Cm hash = Ar init,bound
 Set the initial value of
-the nick color hash function
+the nick and channel
+color hash function
 and the maximum IRC color value used.
 The default is 0,75.
 To use only colors from
 the 16-color terminal set,
 use 0,15.
+To disable nick and channel colors,
+use 0,0.
 .
 .It Fl I Ar pattern , Cm highlight = Ar pattern
 Add a case-insensitive message highlight pattern,

chat.c

@@ -123,7 +123,6 @@ uint32_t hashBound = 75;
 static void parseHash(char *str) {
 	hashInit = strtoul(str, &str, 0);
 	if (*str) hashBound = strtoul(&str[1], NULL, 0);
-	if (hashBound < 2) errx(EX_USAGE, "hash bound must be >= 2");
 }
 
 #ifdef __OpenBSD__

chat.h

@@ -139,6 +139,7 @@ static inline uint idFor(const char *name) {
 extern uint32_t hashInit;
 extern uint32_t hashBound;
 static inline enum Color hash(const char *str) {
+	if (hashBound < Blue) return Default;
 	if (*str == '~') str++;
 	uint32_t hash = hashInit;
 	for (; *str; ++str) {