From 0e55f4054e28faa348aaa2a03351c1efcf782ef8 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <mitchell.hashimoto@gmail.com>
Date: Sun, 27 Nov 2022 20:25:09 -0800
Subject: [PATCH] font: Shaper should replace 0 with 0x20 (space)

This didn't cause any real problems but it was a waste to trigger the
full font fallback system for codepoint 0.
---
 src/font/Shaper.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/font/Shaper.zig b/src/font/Shaper.zig
index 051758918..d6e38576c 100644
--- a/src/font/Shaper.zig
+++ b/src/font/Shaper.zig
@@ -182,7 +182,7 @@ pub const RunIterator = struct {
             // for unknown glyphs.
             const font_idx_opt = (try self.group.indexForCodepoint(
                 alloc,
-                if (cell.empty()) ' ' else cell.char,
+                if (cell.empty() or cell.char == 0) ' ' else cell.char,
                 style,
                 presentation,
             )) orelse (try self.group.indexForCodepoint(