.. _program_listing_file_include_opentelemetry_common_string_util.h:

Program Listing for File string_util.h
======================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_opentelemetry_common_string_util.h>` (``include/opentelemetry/common/string_util.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2021, OpenTelemetry Authors
   //
   // Licensed under the Apache License, Version 2.0 (the "License");
   // you may not use this file except in compliance with the License.
   // You may obtain a copy of the License at
   //
   //     http://www.apache.org/licenses/LICENSE-2.0
   //
   // Unless required by applicable law or agreed to in writing, software
   // distributed under the License is distributed on an "AS IS" BASIS,
   // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   // See the License for the specific language governing permissions and
   // limitations under the License.
   
   #pragma once
   
   #include "opentelemetry/nostd/string_view.h"
   
   OPENTELEMETRY_BEGIN_NAMESPACE
   namespace common
   {
   
   class StringUtil
   {
   public:
     static nostd::string_view Trim(nostd::string_view str, size_t left, size_t right)
     {
       while (str[static_cast<std::size_t>(left)] == ' ' && left <= right)
       {
         left++;
       }
       while (str[static_cast<std::size_t>(right)] == ' ' && left <= right)
       {
         right--;
       }
       return str.substr(left, 1 + right - left);
     }
   };
   
   }  // namespace common
   
   OPENTELEMETRY_END_NAMESPACE