From a0ae611a9947ad75bdb3aa48a2904fc42287e71b Mon Sep 17 00:00:00 2001
From: Alex Duan <417921451@qq.com>
Date: Mon, 27 Feb 2023 16:39:45 +0800
Subject: [PATCH] fix: fix can not scroll enum item with blank

---
 tools/shell/src/shellAuto.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/tools/shell/src/shellAuto.c b/tools/shell/src/shellAuto.c
index 64f0a3bc8f..a8986351b7 100644
--- a/tools/shell/src/shellAuto.c
+++ b/tools/shell/src/shellAuto.c
@@ -536,7 +536,7 @@ SWord* addWord(const char* p, int32_t len, bool pattern) {
   word->len = len;
 
   // check format
-  if (pattern) {
+  if (pattern && len > 0) {
     word->type = wordType(p, len);
   } else {
     word->type = WT_TEXT;
@@ -577,11 +577,8 @@ void parseCommand(SWords* command, bool pattern) {
         while (word->next) {
           word = word->next;
         }
-        int len = i - start;
-        if (len > 0) {
-          word->next = addWord(p + start, len, pattern);
-          command->count++;
-        }
+        word->next = addWord(p + start, i - start, pattern);
+        command->count++;
       }
       start = i + 1;
     } else {
-- 
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