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// Copyright 2017 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_
#define CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_
#include <utility>
#include <vector>
#include "core/fpdfapi/font/cpdf_cidfont.h"
#include "core/fpdfapi/font/cpdf_cmap.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
class CPDF_CMapParser {
public:
explicit CPDF_CMapParser(CPDF_CMap* pCMap);
~CPDF_CMapParser();
void ParseWord(ByteStringView word);
static CIDSet CharsetFromOrdering(ByteStringView ordering);
private:
friend class cpdf_cmapparser_GetCode_Test;
friend class cpdf_cmapparser_GetCodeRange_Test;
enum Status {
kStart,
kProcessingCidChar,
kProcessingCidRange,
kProcessingRegistry,
kProcessingOrdering,
kProcessingSupplement,
kProcessingWMode,
kProcessingCodeSpaceRange,
};
void HandleCid(ByteStringView word);
void HandleCodeSpaceRange(ByteStringView word);
static uint32_t GetCode(ByteStringView word);
static absl::optional<CPDF_CMap::CodeRange> GetCodeRange(
ByteStringView first,
ByteStringView second);
Status m_Status = kStart;
int m_CodeSeq = 0;
UnownedPtr<CPDF_CMap> const m_pCMap;
std::vector<CPDF_CMap::CodeRange> m_Ranges;
std::vector<CPDF_CMap::CodeRange> m_PendingRanges;
std::vector<CPDF_CMap::CIDRange> m_AdditionalCharcodeToCIDMappings;
ByteString m_LastWord;
uint32_t m_CodePoints[4] = {};
};
#endif // CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_