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venv/lib/python3.10/site-packages/pyarrow/include/arrow/util/utf8.h

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+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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 <cstdint>
+#include <cstring>
+#include <string>
+#include <string_view>
+
+#include "arrow/type_fwd.h"
+#include "arrow/util/macros.h"
+#include "arrow/util/visibility.h"
+
+namespace arrow {
+namespace util {
+
+// Convert a UTF8 string to a wstring (either UTF16 or UTF32, depending
+// on the wchar_t width).
+ARROW_EXPORT Result<std::wstring> UTF8ToWideString(std::string_view source);
+
+// Similarly, convert a wstring to a UTF8 string.
+ARROW_EXPORT Result<std::string> WideStringToUTF8(const std::wstring& source);
+
+// Convert UTF8 string to a UTF16 string.
+ARROW_EXPORT Result<std::u16string> UTF8StringToUTF16(std::string_view source);
+
+// Convert UTF16 string to a UTF8 string.
+ARROW_EXPORT Result<std::string> UTF16StringToUTF8(std::u16string_view source);
+
+// This function needs to be called before doing UTF8 validation.
+ARROW_EXPORT void InitializeUTF8();
+
+ARROW_EXPORT bool ValidateUTF8(const uint8_t* data, int64_t size);
+
+ARROW_EXPORT bool ValidateUTF8(std::string_view str);
+
+// Skip UTF8 byte order mark, if any.
+ARROW_EXPORT
+Result<const uint8_t*> SkipUTF8BOM(const uint8_t* data, int64_t size);
+
+static constexpr uint32_t kMaxUnicodeCodepoint = 0x110000;
+
+}  // namespace util
+}  // namespace arrow