===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/arguments.c,v
retrieving revision 1.54
retrieving revision 1.55
diff -u -r1.54 -r1.55
--- src/usr.bin/tmux/arguments.c	2022/05/30 13:04:24	1.54
+++ src/usr.bin/tmux/arguments.c	2022/06/07 10:02:19	1.55
@@ -1,4 +1,4 @@
-/* $OpenBSD: arguments.c,v 1.54 2022/05/30 13:04:24 nicm Exp $ */
+/* $OpenBSD: arguments.c,v 1.55 2022/06/07 10:02:19 nicm Exp $ */
 
 /*
  * Copyright (c) 2010 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -848,6 +848,41 @@
 	return (ll);
 }
 
+/* Convert an argument value to a number, and expand formats. */
+long long
+args_strtonum_and_expand(struct args *args, u_char flag, long long minval,
+    long long maxval, struct cmdq_item *item, char **cause)
+{
+	const char		*errstr;
+	char			*formatted;
+	long long		 ll;
+	struct args_entry	*entry;
+	struct args_value	*value;
+
+	if ((entry = args_find(args, flag)) == NULL) {
+		*cause = xstrdup("missing");
+		return (0);
+	}
+	value = TAILQ_LAST(&entry->values, args_values);
+	if (value == NULL ||
+	    value->type != ARGS_STRING ||
+	    value->string == NULL) {
+		*cause = xstrdup("missing");
+		return (0);
+	}
+
+	formatted = format_single_from_target(item, value->string);
+	ll = strtonum(formatted, minval, maxval, &errstr);
+	free(formatted);
+	if (errstr != NULL) {
+		*cause = xstrdup(errstr);
+		return (0);
+	}
+
+	*cause = NULL;
+	return (ll);
+}
+
 /* Convert an argument to a number which may be a percentage. */
 long long
 args_percentage(struct args *args, u_char flag, long long minval,
@@ -895,6 +930,73 @@
 		}
 	} else {
 		ll = strtonum(value, minval, maxval, &errstr);
+		if (errstr != NULL) {
+			*cause = xstrdup(errstr);
+			return (0);
+		}
+	}
+
+	*cause = NULL;
+	return (ll);
+}
+
+/*
+ * Convert an argument to a number which may be a percentage, and expand
+ * formats.
+ */
+long long
+args_percentage_and_expand(struct args *args, u_char flag, long long minval,
+    long long maxval, long long curval, struct cmdq_item *item, char **cause)
+{
+	const char		*value;
+	struct args_entry	*entry;
+
+	if ((entry = args_find(args, flag)) == NULL) {
+		*cause = xstrdup("missing");
+		return (0);
+	}
+	value = TAILQ_LAST(&entry->values, args_values)->string;
+	return (args_string_percentage_and_expand(value, minval, maxval, curval,
+		    item, cause));
+}
+
+/*
+ * Convert a string to a number which may be a percentage, and expand formats.
+ */
+long long
+args_string_percentage_and_expand(const char *value, long long minval,
+    long long maxval, long long curval, struct cmdq_item *item, char **cause)
+{
+	const char	*errstr;
+	long long	 ll;
+	size_t		 valuelen = strlen(value);
+	char		*copy, *f;
+
+	if (value[valuelen - 1] == '%') {
+		copy = xstrdup(value);
+		copy[valuelen - 1] = '\0';
+
+		f = format_single_from_target(item, copy);
+		ll = strtonum(f, 0, 100, &errstr);
+		free(f);
+		free(copy);
+		if (errstr != NULL) {
+			*cause = xstrdup(errstr);
+			return (0);
+		}
+		ll = (curval * ll) / 100;
+		if (ll < minval) {
+			*cause = xstrdup("too small");
+			return (0);
+		}
+		if (ll > maxval) {
+			*cause = xstrdup("too large");
+			return (0);
+		}
+	} else {
+		f = format_single_from_target(item, value);
+		ll = strtonum(f, minval, maxval, &errstr);
+		free(f);
 		if (errstr != NULL) {
 			*cause = xstrdup(errstr);
 			return (0);