mirror of
https://github.com/xiaoyifang/goldendict-ng.git
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88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* Copyright (C) 2002-2017 Németh László
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* Hunspell is based on MySpell which is Copyright (C) 2002 Kevin Hendricks.
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*
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* Contributor(s): David Einstein, Davide Prina, Giuseppe Modugno,
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* Gianluca Turconi, Simon Brouwer, Noll János, Bíró Árpád,
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* Goldman Eleonóra, Sarlós Tamás, Bencsáth Boldizsár, Halácsy Péter,
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* Dvornik László, Gefferth András, Nagy Viktor, Varga Dániel, Chris Halls,
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* Rene Engelhard, Bram Moolenaar, Dafydd Jones, Harri Pitkänen
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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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#include <fstream>
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#include <vector>
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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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private:
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Hunzip(const Hunzip&);
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Hunzip& operator=(const Hunzip&);
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protected:
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char* filename;
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std::ifstream fin;
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int bufsiz, lastbit, inc, inbits, outc;
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std::vector<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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bool is_open() { return fin.is_open(); }
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bool getline(std::string& dest);
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};
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#endif
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