From 604b18befd9918a65a8f370a6051864fcda2f623 Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Fri, 31 May 2024 20:31:55 +0200
Subject: Pass a tabsize to ucswdth()

---
 lib/unicode/string/u8wdth.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'lib/unicode')

diff --git a/lib/unicode/string/u8wdth.c b/lib/unicode/string/u8wdth.c
index 503ff7c..7a58069 100644
--- a/lib/unicode/string/u8wdth.c
+++ b/lib/unicode/string/u8wdth.c
@@ -3,15 +3,19 @@
 #include "unicode/string.h"
 
 size_t
-u8wdth(struct u8view sv)
+u8wdth(struct u8view sv, int ts)
 {
 	rune ch;
 	size_t n = 0;
 
 	while (ucsnext(&ch, &sv) != 0) {
-		int w = uprop_get_wdth(ch);
-		if (w > 0)
-			n += w;
+		if (ch == '\t')
+			n += ts - n % ts;
+		else {
+			int w = uprop_get_wdth(ch);
+			if (w > 0)
+				n += w;
+		}
 	}
 
 	return n;
-- 
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