From e4fba94f2586e5b2ed41b2a57ae5d4b7adc469b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=80=E8=90=8C=E5=B0=8F=E6=B1=90?= <sumneko@hotmail.com>
Date: Mon, 4 Apr 2022 16:04:19 +0800
Subject: check nil

---
 script/parser/guide.lua | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'script/parser/guide.lua')

diff --git a/script/parser/guide.lua b/script/parser/guide.lua
index eda85c97..e7b19bd3 100644
--- a/script/parser/guide.lua
+++ b/script/parser/guide.lua
@@ -803,6 +803,9 @@ function m.offsetToPosition(state, offset)
 end
 
 function m.getLineRange(state, row)
+    if not state.lines[row] then
+        return 0
+    end
     local nextLineStart = state.lines[row + 1] or #state.lua
     for i = nextLineStart - 1, state.lines[row], -1 do
         local w = state.lua:sub(i, i)
-- 
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