From 6406f05eb2d12c4383d1a145fe2ccbdb7a5e5c6b Mon Sep 17 00:00:00 2001
From: Lephenixnoir <sebastien.michelland@protonmail.com>
Date: Sun, 3 Sep 2023 19:03:48 +0200
Subject: [PATCH] shell: fix crash for commands without a long description

---
 shell/main.cpp | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/shell/main.cpp b/shell/main.cpp
index a52e45a..81dacdf 100644
--- a/shell/main.cpp
+++ b/shell/main.cpp
@@ -27,12 +27,14 @@ ShellCommand::ShellCommand(std::string _name, ShellFunction _function,
     function {_function},
     completer {_completer}, short_description {_shortd}
 {
-    /* Left trim */
-    _longd.erase(0, _longd.find_first_not_of("\n"));
-    /* Right trim */
-    int r = _longd.size();
-    while(r > 0 && _longd[--r] == '\n') {}
-    _longd.erase(r + 1, _longd.size());
+    if(_longd.size()) {
+        /* Left trim */
+        _longd.erase(0, _longd.find_first_not_of("\n"));
+        /* Right trim */
+        int r = _longd.size();
+        while(r > 0 && _longd[--r] == '\n') {}
+        _longd.erase(r + 1, _longd.size());
+    }
 
     this->long_description = _longd;
     commands[_name] = this;