9.2/includes/opentelemetry/common/string_util.h

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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
 
#pragma once
 
#include <ctype.h>
 
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/version.h"
 
OPENTELEMETRY_BEGIN_NAMESPACE
namespace common
{
 
class StringUtil
{
public:
  static nostd::string_view Trim(nostd::string_view str, size_t left, size_t right) noexcept
  {
    while (left <= right && isspace(str[left]))
    {
      left++;
    }
    while (left <= right && isspace(str[right]))
    {
      right--;
    }
    return str.substr(left, 1 + right - left);
  }
 
  static nostd::string_view Trim(nostd::string_view str) noexcept
  {
    if (str.empty())
    {
      return str;
    }
 
    return Trim(str, 0, str.size() - 1);
  }
};
 
}  // namespace common
 
OPENTELEMETRY_END_NAMESPACE