blob: 52109d124c9c2cabbc2ce6c6d4289ffe5bc54671 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
/* hunzip: file decompression for sorted dictionaries with optional encryption,
* algorithm: prefix-suffix encoding and 16-bit Huffman encoding */
#ifndef _HUNZIP_HXX_
#define _HUNZIP_HXX_
#define BUFSIZE 65536
#define HZIP_EXTENSION ".hz"
#define MSG_OPEN "error: %s: cannot open\n"
#define MSG_FORMAT "error: %s: not in hzip format\n"
#define MSG_MEMORY "error: %s: missing memory\n"
#define MSG_KEY "error: %s: missing or bad password\n"
struct bit {
unsigned char c[2];
int v[2];
};
class Hunzip
{
protected:
char * filename;
FILE * fin;
int bufsiz, lastbit, inc, inbits, outc;
struct bit * dec; // code table
char in[BUFSIZE]; // input buffer
char out[BUFSIZE + 1]; // Huffman-decoded buffer
char line[BUFSIZE + 50]; // decoded line
int getcode(const char * key);
int getbuf();
int fail(const char * err, const char * par);
public:
Hunzip(const char * filename, const char * key = NULL);
~Hunzip();
const char * getline();
};
#endif
|
