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https://github.com/xiaoyifang/goldendict-ng.git
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46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
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/* hunzip: file decompression for sorted dictionaries with optional encryption,
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* algorithm: prefix-suffix encoding and 16-bit Huffman encoding */
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#ifndef _HUNZIP_HXX_
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#define _HUNZIP_HXX_
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#include "hunvisapi.h"
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#include <stdio.h>
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#define BUFSIZE 65536
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#define HZIP_EXTENSION ".hz"
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#define MSG_OPEN "error: %s: cannot open\n"
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#define MSG_FORMAT "error: %s: not in hzip format\n"
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#define MSG_MEMORY "error: %s: missing memory\n"
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#define MSG_KEY "error: %s: missing or bad password\n"
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struct bit {
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unsigned char c[2];
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int v[2];
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};
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class LIBHUNSPELL_DLL_EXPORTED Hunzip
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{
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protected:
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char * filename;
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FILE * fin;
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int bufsiz, lastbit, inc, inbits, outc;
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struct bit * dec; // code table
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char in[BUFSIZE]; // input buffer
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char out[BUFSIZE + 1]; // Huffman-decoded buffer
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char line[BUFSIZE + 50]; // decoded line
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int getcode(const char * key);
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int getbuf();
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int fail(const char * err, const char * par);
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public:
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Hunzip(const char * filename, const char * key = NULL);
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~Hunzip();
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const char * getline();
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};
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#endif
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