From cb2d9ddacc96f281fe50e204a74612403242e6af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B1=9F=E5=A4=8F=E5=B0=A7?= <3446798488@qq.com>
Date: Sun, 15 Dec 2024 09:02:53 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E7=A9=BA=E5=8C=85?=
 =?UTF-8?q?=E9=97=AE=E9=A2=98?=
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---
 src/pre_subset/mod.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/pre_subset/mod.rs b/src/pre_subset/mod.rs
index d8c9bd74..64c4cd4d 100644
--- a/src/pre_subset/mod.rs
+++ b/src/pre_subset/mod.rs
@@ -60,6 +60,7 @@ pub fn pre_subset(ctx: &mut Context) {
     // let set = analyze_gsub(&font, &mut font_file);
     ctx.pre_subset_result = subsets
         .iter()
+        .filter(|v| v.len() > 0)
         .map(|v| v.iter().map(|i| i.clone()).collect::<Vec<u32>>())
         .collect();
     ctx.name_table = name_table::analyze_name_table(&font, &mut font_file);