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Diffstat (limited to 'extensions/spellcheck/hunspell/src/hunzip.hxx')
-rw-r--r-- | extensions/spellcheck/hunspell/src/hunzip.hxx | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/extensions/spellcheck/hunspell/src/hunzip.hxx b/extensions/spellcheck/hunspell/src/hunzip.hxx new file mode 100644 index 000000000..5082adddb --- /dev/null +++ b/extensions/spellcheck/hunspell/src/hunzip.hxx @@ -0,0 +1,87 @@ +/* ***** 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> + +#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; + 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 |