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diff --git a/extensions/spellcheck/hunspell/src/replist.cxx b/extensions/spellcheck/hunspell/src/replist.cxx
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+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * Copyright (C) 2002-2022 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.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <limits>
+
+#include "replist.hxx"
+#include "csutil.hxx"
+
+RepList::RepList(int n) {
+ dat = (replentry**)malloc(sizeof(replentry*) * n);
+ if (dat == 0)
+ size = 0;
+ else
+ size = n;
+ pos = 0;
+}
+
+RepList::~RepList() {
+ for (int i = 0; i < pos; i++) {
+ delete dat[i];
+ }
+ free(dat);
+}
+
+replentry* RepList::item(int n) {
+ return dat[n];
+}
+
+int RepList::find(const char* word) {
+ int p1 = 0;
+ int p2 = pos - 1;
+ int ret = -1;
+ while (p1 <= p2) {
+ int m = ((unsigned)p1 + (unsigned)p2) >> 1;
+ int c = strncmp(word, dat[m]->pattern.c_str(), dat[m]->pattern.size());
+ if (c < 0)
+ p2 = m - 1;
+ else if (c > 0)
+ p1 = m + 1;
+ else { // scan in the right half for a longer match
+ ret = m;
+ p1 = m + 1;
+ }
+ }
+ return ret;
+}
+
+std::string RepList::replace(const char* word, int ind, bool atstart) {
+ int type = atstart ? 1 : 0;
+ if (ind < 0)
+ return std::string();
+ if (strlen(word) == dat[ind]->pattern.size())
+ type = atstart ? 3 : 2;
+ while (type && dat[ind]->outstrings[type].empty())
+ type = (type == 2 && !atstart) ? 0 : type - 1;
+ return dat[ind]->outstrings[type];
+}
+
+int RepList::add(const std::string& in_pat1, const std::string& pat2) {
+ if (pos >= size || in_pat1.empty() || pat2.empty()) {
+ return 1;
+ }
+ // analyse word context
+ int type = 0;
+ std::string pat1(in_pat1);
+ if (pat1[0] == '_') {
+ pat1.erase(0, 1);
+ type = 1;
+ }
+ if (!pat1.empty() && pat1[pat1.size() - 1] == '_') {
+ type = type + 2;
+ pat1.erase(pat1.size() - 1);
+ }
+ mystrrep(pat1, "_", " ");
+
+ // find existing entry
+ int m = find(pat1.c_str());
+ if (m >= 0 && dat[m]->pattern == pat1) {
+ // since already used
+ dat[m]->outstrings[type] = pat2;
+ mystrrep(dat[m]->outstrings[type], "_", " ");
+ return 0;
+ }
+
+ // make a new entry if none exists
+ replentry* r = new replentry;
+ if (r == NULL)
+ return 1;
+ r->pattern = pat1;
+ r->outstrings[type] = pat2;
+ mystrrep(r->outstrings[type], "_", " ");
+ dat[pos++] = r;
+ // sort to the right place in the list
+ int i;
+ for (i = pos - 1; i > 0; i--) {
+ if (strcmp(r->pattern.c_str(), dat[i - 1]->pattern.c_str()) < 0) {
+ dat[i] = dat[i - 1];
+ } else
+ break;
+ }
+ dat[i] = r;
+ return 0;
+}
+
+bool RepList::conv(const std::string& in_word, std::string& dest) {
+ dest.clear();
+
+ size_t wordlen = in_word.size();
+ const char* word = in_word.c_str();
+
+ bool change = false;
+ for (size_t i = 0; i < wordlen; ++i) {
+ int n = find(word + i);
+ std::string l = replace(word + i, n, i == 0);
+ if (!l.empty()) {
+ dest.append(l);
+ i += dat[n]->pattern.size() - 1;
+ change = true;
+ } else {
+ dest.push_back(word[i]);
+ }
+ }
+
+ return change;
+}
+