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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /lingucomponent/source/languageguessing/guess.cxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <string.h>
+
+#ifdef SYSTEM_LIBEXTTEXTCAT
+#include <libexttextcat/textcat.h>
+#else
+#include <textcat.h>
+#endif
+
+#include "guess.hxx"
+
+/* Old textcat.h versions defined bad spelled constants. */
+#ifndef TEXTCAT_RESULT_UNKNOWN_STR
+#define TEXTCAT_RESULT_UNKNOWN_STR _TEXTCAT_RESULT_UNKOWN
+#endif
+
+#ifndef TEXTCAT_RESULT_SHORT_STR
+#define TEXTCAT_RESULT_SHORT_STR _TEXTCAT_RESULT_SHORT
+#endif
+
+Guess::Guess()
+ : language_str(DEFAULT_LANGUAGE)
+ , country_str(DEFAULT_COUNTRY)
+{
+}
+
+/*
+* this use a char * string to build the guess object
+* a string like those is made as : [language-country-encoding]...
+*
+*/
+Guess::Guess(const char * guess_str)
+ : language_str(DEFAULT_LANGUAGE)
+ , country_str(DEFAULT_COUNTRY)
+{
+ //if the guess is not like "UNKNOWN" or "SHORT", go into the brackets
+ if(strcmp(guess_str + 1, TEXTCAT_RESULT_UNKNOWN_STR) == 0
+ || strcmp(guess_str + 1, TEXTCAT_RESULT_SHORT_STR) == 0)
+ return;
+
+ // From how this ctor is called from SimpleGuesser::GuessLanguage and
+ // SimpleGuesser::GetManagedLanguages in
+ // lingucomponent/source/languageguessing/simpleguesser.cxx, guess_str must start with "[":
+ assert(guess_str[0] == GUESS_SEPARATOR_OPEN);
+ auto const start = guess_str + 1;
+ // Only look at the prefix of guess_str, delimited by the next "]" or "[" or end-of-string;
+ // split it into at most three segments separated by "-" (where excess occurrences of "-"
+ // would become part of the third segment), like "en-US-utf8"; the first segment denotes the
+ // language; if there are three segments, the second denotes the country and the third the
+ // encoding; otherwise, the second segment, if any (e.g., in "haw-utf8"), denotes the
+ // encoding:
+ char const * dash1 = nullptr;
+ char const * dash2 = nullptr;
+ auto p = start;
+ for (;; ++p) {
+ auto const c = *p;
+ if (c == '\0' || c == GUESS_SEPARATOR_OPEN || c == GUESS_SEPARATOR_CLOSE) {
+ break;
+ }
+ if (c == GUESS_SEPARATOR_SEP) {
+ if (dash1 == nullptr) {
+ dash1 = p;
+ } else {
+ dash2 = p;
+ // The encoding is ignored, so we can stop as soon as we found the second "-":
+ break;
+ }
+ }
+ }
+ auto const langLen = (dash1 == nullptr ? p : dash1) - start;
+ if (langLen != 0) { // if not we use the default value
+ language_str.assign(start, langLen);
+ }
+ if (dash2 != nullptr) {
+ country_str.assign(dash1 + 1, dash2 - (dash1 + 1));
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */