From 7e1063f22ed0f8ff9a13284eed1d8279a2f2ad98 Mon Sep 17 00:00:00 2001
From: Abs62 <ottomann@yandex.ru>
Date: Sat, 4 Feb 2023 18:53:35 +0300
Subject: [PATCH] DSL: Fix freezes on some incorrect dictionaries

---
 dsl_details.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dsl_details.cc b/dsl_details.cc
index ac0b1d91..f605f5e4 100644
--- a/dsl_details.cc
+++ b/dsl_details.cc
@@ -1286,6 +1286,13 @@ void processUnsortedParts( wstring & str, bool strip )
 void expandOptionalParts( wstring & str, list< wstring > * result,
                           size_t x, bool inside_recurse )
 {
+  if( str.size() > 500 )
+  {
+    // Don't expand too long headwords - it is highly likely incorrect dictionary
+    result->push_back( str );
+    return;
+  }
+
   list< wstring > expanded;
   list< wstring > * headwords;
   headwords = inside_recurse ? result : &expanded;