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diff --git a/extensions/spellcheck/hunspell/src/hashmgr.hxx b/extensions/spellcheck/hunspell/src/hashmgr.hxx
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+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * Copyright (C) 2002-2017 Németh László
+ *
+ * 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.
+ *
+ * Hunspell is based on MySpell which is Copyright (C) 2002 Kevin Hendricks.
+ *
+ * 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 ***** */
+/*
+ * Copyright 2002 Kevin B. Hendricks, Stratford, Ontario, Canada
+ * And Contributors.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. All modifications to the source code must be clearly marked as
+ *    such.  Binary redistributions based on modified source code
+ *    must be clearly marked as modified versions in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY KEVIN B. HENDRICKS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+ * KEVIN B. HENDRICKS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef HASHMGR_HXX_
+#define HASHMGR_HXX_
+
+#include <stdio.h>
+#include <string>
+#include <vector>
+
+#include "htypes.hxx"
+#include "filemgr.hxx"
+#include "w_char.hxx"
+
+enum flag { FLAG_CHAR, FLAG_LONG, FLAG_NUM, FLAG_UNI };
+
+// morphological description of a dictionary item can contain
+// arbitrary number "ph:" (MORPH_PHON) fields to store typical
+// phonetic or other misspellings of that word.
+// ratio of lines/lines with "ph:" in the dic file: 1/MORPH_PHON_RATIO
+#define MORPH_PHON_RATIO 500
+
+class HashMgr {
+  int tablesize;
+  struct hentry** tableptr;
+  flag flag_mode;
+  int complexprefixes;
+  int utf8;
+  unsigned short forbiddenword;
+  int langnum;
+  std::string enc;
+  std::string lang;
+  struct cs_info* csconv;
+  std::string ignorechars;
+  std::vector<w_char> ignorechars_utf16;
+  int numaliasf;  // flag vector `compression' with aliases
+  unsigned short** aliasf;
+  unsigned short* aliasflen;
+  int numaliasm;  // morphological desciption `compression' with aliases
+  char** aliasm;
+  // reptable created from REP table of aff file and from "ph:" fields
+  // of the dic file. It contains phonetic and other common misspellings
+  // (letters, letter groups and words) for better suggestions
+  std::vector<replentry> reptable;
+
+ public:
+  HashMgr(const char* tpath, const char* apath, const char* key = NULL);
+  ~HashMgr();
+
+  struct hentry* lookup(const char*) const;
+  int hash(const char*) const;
+  struct hentry* walk_hashtable(int& col, struct hentry* hp) const;
+
+  int add(const std::string& word);
+  int add_with_affix(const std::string& word, const std::string& pattern);
+  int remove(const std::string& word);
+  int decode_flags(unsigned short** result, const std::string& flags, FileMgr* af) const;
+  bool decode_flags(std::vector<unsigned short>& result, const std::string& flags, FileMgr* af) const;
+  unsigned short decode_flag(const char* flag) const;
+  char* encode_flag(unsigned short flag) const;
+  int is_aliasf() const;
+  int get_aliasf(int index, unsigned short** fvec, FileMgr* af) const;
+  int is_aliasm() const;
+  char* get_aliasm(int index) const;
+  const std::vector<replentry>& get_reptable() const;
+
+ private:
+  int get_clen_and_captype(const std::string& word, int* captype);
+  int get_clen_and_captype(const std::string& word, int* captype, std::vector<w_char> &workbuf);
+  int load_tables(const char* tpath, const char* key);
+  int add_word(const std::string& word,
+               int wcl,
+               unsigned short* ap,
+               int al,
+               const std::string* desc,
+               bool onlyupcase,
+               int captype);
+  int load_config(const char* affpath, const char* key);
+  bool parse_aliasf(const std::string& line, FileMgr* af);
+  int add_hidden_capitalized_word(const std::string& word,
+                                  int wcl,
+                                  unsigned short* flags,
+                                  int al,
+                                  const std::string* dp,
+                                  int captype);
+  bool parse_aliasm(const std::string& line, FileMgr* af);
+  bool parse_reptable(const std::string& line, FileMgr* af);
+  int remove_forbidden_flag(const std::string& word);
+};
+
+#endif