#ifndef COMPRESS_H
#define COMPRESS_H

class Dictionary {
public:
    static Dictionary* MakeDictionary();
    static Dictionary* MakeDictionary(const char* filename);
    virtual ~Dictionary() { }

    virtual bool AddToDictionary(const char* from, const char* to) = 0;
    virtual bool RemoveFromDictionary(const char* from) = 0;
};


class Compressor {
public:
    static Compressor* MakeCompressor(bool removeWhitespace,
				      bool removeVowels,
				      const Dictionary* abbreviations);
    virtual ~Compressor() { }

    // Caller assumes ownership of output (for memory management)
    virtual bool CompressMessage(const char* input, char*& output) = 0;
};




#endif