From 5c080072bc1a7e3e7179fc092700fb1975e0f8d7 Mon Sep 17 00:00:00 2001
From: WormHeamer
Date: Sat, 8 Nov 2025 02:49:24 -0500
Subject: don't truncate too much; relocate UTF8_* to utf8 section

---
 vui.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/vui.c b/vui.c
index a73e15f..7afd974 100644
--- a/vui.c
+++ b/vui.c
@@ -320,10 +320,6 @@ static void vui_outf(const char *fmt, ...) {
  *      len(cp) = 1 + (0xFFEAA550000 >> (2 * (32 - clz(cp)))) & 3
  */
 
-#define UTF8_CP_LEN_BITS   ((uint64_t)0xFFEAA550000)
-#define UTF8_CP_SHIFT(cp)  ((32 - stdc_leading_zeros((uint32_t)(cp))) << 1)
-#define UTF8_CP_LEN(cp)    (1 + ((UTF8_CP_LEN_BITS >> UTF8_CP_SHIFT(cp)) & 3))
-
 static inline void vui_outc(char c) {
 	vui_out_fit(vui_outn + 1);
 	vui_out[vui_outn++] = c;
@@ -618,12 +614,12 @@ static void truncate_span(int *x, unsigned *nptr) {
 		*nptr = 0;
 		return;
 	}
-	if (*x + n >= (int)COLS) {
-		n = COLS - *x - 1;
+	if (*x + n > (int)COLS) {
+		n = COLS - *x;
 	}
 	if (n < 0) n = 0;
 	assert(n >= 0);
-	assert(*x + n < (int)COLS);
+	//assert(*x + n < (int)COLS);
 	*nptr = n;
 }
 
@@ -838,6 +834,10 @@ VuiKey vui_key(void) {
 
 /* utf8 */
 
+#define UTF8_CP_LEN_BITS   ((uint64_t)0xFFEAA550000)
+#define UTF8_CP_SHIFT(cp)  ((32 - stdc_leading_zeros((uint32_t)(cp))) << 1)
+#define UTF8_CP_LEN(cp)    (1 + ((UTF8_CP_LEN_BITS >> UTF8_CP_SHIFT(cp)) & 3))
+
 static u32 utf8_decode_len(const char *src, u32 n) {
 	u32 i = 0;
 	u32 len = 0;
-- 
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