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