59 lines
2 KiB
C++
59 lines
2 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <cstdint>
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#include <cstring>
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#include <string>
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#include <string_view>
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#include "arrow/type_fwd.h"
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#include "arrow/util/macros.h"
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#include "arrow/util/visibility.h"
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namespace arrow {
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namespace util {
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// Convert a UTF8 string to a wstring (either UTF16 or UTF32, depending
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// on the wchar_t width).
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ARROW_EXPORT Result<std::wstring> UTF8ToWideString(std::string_view source);
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// Similarly, convert a wstring to a UTF8 string.
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ARROW_EXPORT Result<std::string> WideStringToUTF8(const std::wstring& source);
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// Convert UTF8 string to a UTF16 string.
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ARROW_EXPORT Result<std::u16string> UTF8StringToUTF16(std::string_view source);
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// Convert UTF16 string to a UTF8 string.
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ARROW_EXPORT Result<std::string> UTF16StringToUTF8(std::u16string_view source);
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// This function needs to be called before doing UTF8 validation.
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ARROW_EXPORT void InitializeUTF8();
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ARROW_EXPORT bool ValidateUTF8(const uint8_t* data, int64_t size);
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ARROW_EXPORT bool ValidateUTF8(std::string_view str);
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// Skip UTF8 byte order mark, if any.
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ARROW_EXPORT
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Result<const uint8_t*> SkipUTF8BOM(const uint8_t* data, int64_t size);
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static constexpr uint32_t kMaxUnicodeCodepoint = 0x110000;
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} // namespace util
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} // namespace arrow
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