From 3c98c6375a8c253645f6d54b77b03114446da682 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Mon, 20 Nov 2023 19:55:06 -0800
Subject: [PATCH] terminal: handle width==3 glyphs by just pretending they're
 width 2

---
 src/terminal/Terminal.zig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/terminal/Terminal.zig b/src/terminal/Terminal.zig
index 22a57a546..ff39370f9 100644
--- a/src/terminal/Terminal.zig
+++ b/src/terminal/Terminal.zig
@@ -770,7 +770,14 @@ pub fn print(self: *Terminal, c: u21) !void {
 
     // Determine the width of this character so we can handle
     // non-single-width characters properly.
-    const width: usize = @intCast(@max(0, ziglyph.display_width.codePointWidth(c, .half)));
+    const width: usize = @intCast(@min(
+        @max(0, ziglyph.display_width.codePointWidth(c, .half)),
+        2,
+    ));
+
+    // Note: it is possible to have a width of "3" and a width of "-1"
+    // from ziglyph. We should look into those cases and handle them
+    // appropriately.
     assert(width <= 2);
     // log.debug("c={x} width={}", .{ c, width });