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-rw-r--r--src/myspell/hunzip.hxx41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/myspell/hunzip.hxx b/src/myspell/hunzip.hxx
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+++ b/src/myspell/hunzip.hxx
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+/* 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