| // 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_ |