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diff --git a/pdf/xpdf/CMap.h b/pdf/xpdf/CMap.h
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+//========================================================================
+//
+// CMap.h
+//
+// Copyright 2001-2002 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifndef CMAP_H
+#define CMAP_H
+
+#ifdef __GNUC__
+#pragma interface
+#endif
+
+#include "gtypes.h"
+#include "CharTypes.h"
+
+class GString;
+struct CMapVectorEntry;
+class CMapCache;
+
+//------------------------------------------------------------------------
+
+class CMap {
+public:
+
+  // Create the CMap specified by <collection> and <cMapName>.  Sets
+  // the initial reference count to 1.  Returns NULL on failure.
+  static CMap *parse(CMapCache *cache, GString *collectionA,
+		     GString *cMapNameA);
+
+  ~CMap();
+
+  void incRefCnt();
+  void decRefCnt();
+
+  // Return collection name (<registry>-<ordering>).
+  GString *getCollection() { return collection; }
+
+  // Return true if this CMap matches the specified <collectionA>, and
+  // <cMapNameA>.
+  GBool match(GString *collectionA, GString *cMapNameA);
+
+  // Return the CID corresponding to the character code starting at
+  // <s>, which contains <len> bytes.  Sets *<nUsed> to the number of
+  // bytes used by the char code.
+  CID getCID(char *s, int len, int *nUsed);
+
+  // Return the writing mode (0=horizontal, 1=vertical).
+  int getWMode() { return wMode; }
+
+private:
+
+  CMap(GString *collectionA, GString *cMapNameA);
+  CMap(GString *collectionA, GString *cMapNameA, int wModeA);
+  void useCMap(CMapCache *cache, char *useName);
+  void copyVector(CMapVectorEntry *dest, CMapVectorEntry *src);
+  void addCodeSpace(CMapVectorEntry *vec, Guint start, Guint end,
+		    Guint nBytes);
+  void addCIDs(Guint start, Guint end, Guint nBytes, CID firstCID);
+  void freeCMapVector(CMapVectorEntry *vec);
+
+  GString *collection;
+  GString *cMapName;
+  int wMode;			// writing mode (0=horizontal, 1=vertical)
+  CMapVectorEntry *vector;	// vector for first byte (NULL for
+				//   identity CMap)
+  int refCnt;
+};
+
+//------------------------------------------------------------------------
+
+#define cMapCacheSize 4
+
+class CMapCache {
+public:
+
+  CMapCache();
+  ~CMapCache();
+
+  // Get the <cMapName> CMap for the specified character collection.
+  // Increments its reference count; there will be one reference for
+  // the cache plus one for the caller of this function.  Returns NULL
+  // on failure.
+  CMap *getCMap(GString *collection, GString *cMapName);
+
+private:
+
+  CMap *cache[cMapCacheSize];
+};
+
+#endif