1 files changed, 110 insertions, 0 deletions

diff --git a/noncore/unsupported/qpdf/xpdf/UnicodeMap.h b/noncore/unsupported/qpdf/xpdf/UnicodeMap.h
new file mode 100644
index 0000000..4d982c8
--- a/dev/null
+++ b/noncore/unsupported/qpdf/xpdf/UnicodeMap.h
@@ -0,0 +1,110 @@
+//========================================================================
+//
+// UnicodeMap.h
+//
+// Mapping from Unicode to an encoding.
+//
+// Copyright 2001 Derek B. Noonburg
+//
+//========================================================================
+
+#ifndef UNICODEMAP_H
+#define UNICODEMAP_H
+
+#ifdef __GNUC__
+#pragma interface
+#endif
+
+#include "gtypes.h"
+#include "CharTypes.h"
+
+class GString;
+
+//------------------------------------------------------------------------
+
+enum UnicodeMapKind {
+          unicodeMapUser,       // read from a file
+          unicodeMapResident,   // static list of ranges
+          unicodeMapFunc        // function pointer
+};
+
+typedef int (*UnicodeMapFunc)(Unicode u, char *buf, int bufSize);
+
+struct UnicodeMapRange {
+          Unicode start, end;   // range of Unicode chars
+          Guint code, nBytes;   // first output code
+};
+
+struct UnicodeMapExt;
+
+//------------------------------------------------------------------------
+
+class UnicodeMap {
+public:
+
+  // Create the UnicodeMap specified by <encodingName>.  Sets the
+  // initial reference count to 1.  Returns NULL on failure.
+  static UnicodeMap *parse(GString *encodingNameA);
+
+  // Create a resident UnicodeMap.
+  UnicodeMap(char *encodingNameA,
+             UnicodeMapRange *rangesA, int lenA);
+
+  // Create a resident UnicodeMap that uses a function instead of a
+  // list of ranges.
+  UnicodeMap(char *encodingNameA, UnicodeMapFunc funcA);
+
+  ~UnicodeMap();
+
+  void incRefCnt();
+  void decRefCnt();
+
+  GString *getEncodingName() { return encodingName; }
+
+  // Return true if this UnicodeMap matches the specified
+  // <encodingNameA>.
+  GBool match(GString *encodingNameA);
+
+  // Map Unicode to the target encoding.  Fills in <buf> with the
+  // output and returns the number of bytes used.  Output will be
+  // truncated at <bufSize> bytes.  No string terminator is written.
+  // Returns 0 if no mapping is found.
+  int mapUnicode(Unicode u, char *buf, int bufSize);
+
+private:
+
+  UnicodeMap(GString *encodingNameA);
+
+  GString *encodingName;
+  UnicodeMapKind kind;
+  union {
+            UnicodeMapRange *ranges;// (user, resident)
+            UnicodeMapFunc func;// (func)
+  };
+          int len;              // (user, resident)
+          UnicodeMapExt *eMaps;         // (user)
+          int eMapsLen;                 // (user)
+  int refCnt;
+};
+
+//------------------------------------------------------------------------
+
+#define unicodeMapCacheSize 4
+
+class UnicodeMapCache {
+public:
+
+  UnicodeMapCache();
+  ~UnicodeMapCache();
+
+  // Get the UnicodeMap for <encodingName>.  Increments its reference
+  // count; there will be one reference for the cache plus one for the
+  // caller of this function.  Returns NULL on failure.
+  UnicodeMap *getUnicodeMap(GString *encodingName);
+
+private:
+
+  UnicodeMap *cache[unicodeMapCacheSize];
+};
+
+#endif