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41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
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// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/i18n/encoding_detection.h"
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#include "build/build_config.h"
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#include "third_party/ced/src/compact_enc_det/compact_enc_det.h"
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// third_party/ced/src/util/encodings/encodings.h, which is included
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// by the include above, undefs UNICODE because that is a macro used
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// internally in ced. If we later in the same translation unit do
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// anything related to Windows or Windows headers those will then use
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// the ASCII versions which we do not want. To avoid that happening in
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// jumbo builds, we redefine UNICODE again here.
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#if defined(OS_WIN)
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#define UNICODE 1
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#endif // OS_WIN
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namespace base {
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bool DetectEncoding(const std::string& text, std::string* encoding) {
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int consumed_bytes;
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bool is_reliable;
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Encoding enc = CompactEncDet::DetectEncoding(
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text.c_str(), text.length(), nullptr, nullptr, nullptr,
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UNKNOWN_ENCODING,
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UNKNOWN_LANGUAGE,
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CompactEncDet::QUERY_CORPUS, // plain text
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false, // Include 7-bit encodings
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&consumed_bytes,
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&is_reliable);
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if (enc == UNKNOWN_ENCODING)
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return false;
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*encoding = MimeEncodingName(enc);
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return true;
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}
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} // namespace base
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