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49 lines
1.3 KiB
49 lines
1.3 KiB
// Copyright 2014 PDFium 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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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_
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#define FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_
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#include <vector>
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#include "core/fxcrt/widestring.h"
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class CBC_HighLevelEncoder {
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public:
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enum class Encoding : int8_t {
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UNKNOWN = -1,
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ASCII = 0,
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C40,
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TEXT,
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X12,
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EDIFACT,
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BASE256,
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LAST = BASE256,
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};
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CBC_HighLevelEncoder() = delete;
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~CBC_HighLevelEncoder() = delete;
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// Returns an empty string on failure.
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static WideString EncodeHighLevel(const WideString& msg);
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static Encoding LookAheadTest(const WideString& msg,
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size_t startpos,
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Encoding currentMode);
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static bool IsExtendedASCII(wchar_t ch);
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static const wchar_t LATCH_TO_C40 = 230;
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static const wchar_t LATCH_TO_BASE256 = 231;
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static const wchar_t UPPER_SHIFT = 235;
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static const wchar_t LATCH_TO_ANSIX12 = 238;
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static const wchar_t LATCH_TO_TEXT = 239;
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static const wchar_t LATCH_TO_EDIFACT = 240;
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static const wchar_t C40_UNLATCH = 254;
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static const wchar_t X12_UNLATCH = 254;
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};
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#endif // FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_
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