#ifndef _RAR_COMPRESS_
 #define _RAR_COMPRESS_
 
 // Combine pack and unpack constants to class to avoid polluting global
 // namespace with numerous short names.
 class PackDef
 {
   public:
     // Maximum LZ match length we can encode even for short distances.
     static const uint MAX_LZ_MATCH = 0x1001;
 
     // We increment LZ match length for longer distances, because shortest
     // matches are not allowed for them. Maximum length increment is 3
     // for distances larger than 256KB (0x40000). Here we define the maximum
     // incremented LZ match. Normally packer does not use it, but we must be
     // ready to process it in corrupt archives.
     static const uint MAX_INC_LZ_MATCH = MAX_LZ_MATCH + 3;
 
     static const uint MAX3_LZ_MATCH = 0x101; // Maximum match length for RAR v3.
     static const uint LOW_DIST_REP_COUNT = 16;
 
     static const uint NC    = 306; /* alphabet = {0, 1, 2, ..., NC - 1} */
     static const uint DC    = 64;
     static const uint LDC   = 16;
     static const uint RC    = 44;
     static const uint HUFF_TABLE_SIZE = NC + DC + RC + LDC;
     static const uint BC    = 20;
 
     static const uint NC30  = 299; /* alphabet = {0, 1, 2, ..., NC - 1} */
     static const uint DC30  = 60;
     static const uint LDC30 = 17;
     static const uint RC30  = 28;
     static const uint BC30  = 20;
     static const uint HUFF_TABLE_SIZE30 = NC30 + DC30 + RC30 + LDC30;
 
     static const uint NC20  = 298; /* alphabet = {0, 1, 2, ..., NC - 1} */
     static const uint DC20  = 48;
     static const uint RC20  = 28;
     static const uint BC20  = 19;
     static const uint MC20  = 257;
 
     // Largest alphabet size among all values listed above.
     static const uint LARGEST_TABLE_SIZE = 306;
 
     enum {
       CODE_HUFFMAN, CODE_LZ, CODE_REPEATLZ, CODE_CACHELZ, CODE_STARTFILE,
       CODE_ENDFILE, CODE_FILTER, CODE_FILTERDATA
     };
 };
 
 
 enum FilterType {
   // These values must not be changed, because we use them directly
   // in RAR5 compression and decompression code.
   FILTER_DELTA=0, FILTER_E8, FILTER_E8E9, FILTER_ARM, 
   FILTER_AUDIO, FILTER_RGB, FILTER_ITANIUM, FILTER_PPM, FILTER_NONE
 };
 
 #endif