Noissue - add SplitString and TrimSpaces helpers

compiled/String.h

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include <algorithm>
 #include <cstddef>
 #include <cstring>
 #include <type_traits>
 #ifdef INSIDE_TESTS
 #include <iostream>
 #include <codecvt>
 #endif
+#include <utility>
 
 #include "base.h"
 #include "debug.h"
 #include "library.h"
 
 ABP_NS_BEGIN
 
 inline void String_assert_writable(bool isWritable);
 
 class String
@@ skipping 410 matching lines @@
     }
   }
 };
 
 #ifdef INSIDE_TESTS
 inline std::ostream& operator<<(std::ostream& os, const OwnedString& str)
 {
   return os << static_cast<const String&>(str);
 }
 #endif
+
+DependentString TrimSpaces(const String& value);
+
+// Splits the `value` string into two `DependentString`s excluding the character staying at `separatorPos`.
+// Useful for parsing.
+std::pair<DependentString, DependentString> SplitString(const String& value, String::size_type separatorPos);
+
 ABP_NS_END