| /* ***** BEGIN LICENSE BLOCK ***** |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is Hunspell, based on MySpell. |
| * |
| * The Initial Developers of the Original Code are |
| * Kevin Hendricks (MySpell) and Németh László (Hunspell). |
| * Portions created by the Initial Developers are Copyright (C) 2002-2005 |
| * the Initial Developers. All Rights Reserved. |
| * |
| * Contributor(s): David Einstein, Davide Prina, Giuseppe Modugno, |
| * Gianluca Turconi, Simon Brouwer, Noll János, Bíró Árpád, |
| * Goldman Eleonóra, Sarlós Tamás, Bencsáth Boldizsár, Halácsy Péter, |
| * Dvornik László, Gefferth András, Nagy Viktor, Varga Dániel, Chris Halls, |
| * Rene Engelhard, Bram Moolenaar, Dafydd Jones, Harri Pitkänen |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either the GNU General Public License Version 2 or later (the "GPL"), or |
| * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| * in which case the provisions of the GPL or the LGPL are applicable instead |
| * of those above. If you wish to allow use of your version of this file only |
| * under the terms of either the GPL or the LGPL, and not to allow others to |
| * use your version of this file under the terms of the MPL, indicate your |
| * decision by deleting the provisions above and replace them with the notice |
| * and other provisions required by the GPL or the LGPL. If you do not delete |
| * the provisions above, a recipient may use your version of this file under |
| * the terms of any one of the MPL, the GPL or the LGPL. |
| * |
| * ***** END LICENSE BLOCK ***** */ |
| |
| /* hunzip: file decompression for sorted dictionaries with optional encryption, |
| * algorithm: prefix-suffix encoding and 16-bit Huffman encoding */ |
| |
| #ifndef HUNZIP_HXX_ |
| #define HUNZIP_HXX_ |
| |
| #include "hunvisapi.h" |
| |
| #include <stdio.h> |
| #include <fstream> |
| #include <vector> |
| |
| #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 LIBHUNSPELL_DLL_EXPORTED Hunzip { |
| private: |
| Hunzip(const Hunzip&); |
| Hunzip& operator=(const Hunzip&); |
| |
| protected: |
| char* filename; |
| std::ifstream fin; |
| int bufsiz, lastbit, inc, inbits, outc; |
| std::vector<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(); |
| bool is_open() { return fin.is_open(); } |
| bool getline(std::string& dest); |
| }; |
| |
| #endif |