From 358b44ab8134776bc4a7abd3e96ed6387f263509 Mon Sep 17 00:00:00 2001
From: SidneyZhang <zly@lyzhang.me>
Date: Fri, 6 Mar 2026 16:28:26 +0800
Subject: [PATCH] =?UTF-8?q?fix(generator):=20=E4=BF=AE=E5=A4=8Ddiff?=
 =?UTF-8?q?=E6=88=AA=E6=96=AD=E6=97=B6=E7=9A=84=E5=AD=97=E7=AC=A6=E8=BE=B9?=
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---
 src/generator/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/generator/mod.rs b/src/generator/mod.rs
index c082bd7..443c859 100644
--- a/src/generator/mod.rs
+++ b/src/generator/mod.rs
@@ -31,7 +31,8 @@ impl ContentGenerator {
         // Truncate diff if too long
         let max_diff_len = 4000;
         let truncated_diff = if diff.len() > max_diff_len {
-            format!("{}\n... (truncated)", &diff[..max_diff_len])
+            let boundary = diff.floor_char_boundary(max_diff_len);
+            format!("{}\n... (truncated)", &diff[..boundary])
         } else {
             diff.to_string()
         };