1 files changed, 52 insertions, 0 deletions
diff --git a/core/fpdfapi/font/cpdf_cmapparser.h b/core/fpdfapi/font/cpdf_cmapparser.h
new file mode 100644
index 0000000000..184ef75043
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+++ b/core/fpdfapi/font/cpdf_cmapparser.h
@@ -0,0 +1,52 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// 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 <map>
+#include <utility>
+#include <vector>
+
+#include "core/fpdfapi/font/cpdf_cidfont.h"
+#include "core/fpdfapi/font/cpdf_cmap.h"
+#include "core/fxcrt/cfx_unowned_ptr.h"
+#include "core/fxcrt/fx_basic.h"
+
+class CPDF_CMapParser {
+ public:
+  explicit CPDF_CMapParser(CPDF_CMap* pMap);
+  ~CPDF_CMapParser();
+
+  void ParseWord(const CFX_ByteStringC& str);
+  bool HasAdditionalMappings() const {
+    return !m_AdditionalCharcodeToCIDMappings.empty();
+  }
+  std::vector<CPDF_CMap::CIDRange> TakeAdditionalMappings() {
+    return std::move(m_AdditionalCharcodeToCIDMappings);
+  }
+
+  static CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering);
+
+ private:
+  friend class cpdf_cmapparser_CMap_GetCode_Test;
+  friend class cpdf_cmapparser_CMap_GetCodeRange_Test;
+
+  static uint32_t CMap_GetCode(const CFX_ByteStringC& word);
+  static bool CMap_GetCodeRange(CPDF_CMap::CodeRange& range,
+                                const CFX_ByteStringC& first,
+                                const CFX_ByteStringC& second);
+
+  CFX_UnownedPtr<CPDF_CMap> const m_pCMap;
+  int m_Status;
+  int m_CodeSeq;
+  uint32_t m_CodePoints[4];
+  std::vector<CPDF_CMap::CodeRange> m_CodeRanges;
+  std::vector<CPDF_CMap::CIDRange> m_AdditionalCharcodeToCIDMappings;
+  CFX_ByteString m_LastWord;
+};
+
+#endif  // CORE_FPDFAPI_FONT_CPDF_CMAPPARSER_H_