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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 <o3tl/string_view.hxx>
#include <rtl/ustring.hxx>
#include <dp_version.hxx>
namespace {
std::u16string_view getElement(std::u16string_view version, std::size_t * index)
{
while (*index < version.size() && version[*index] == '0') {
++*index;
}
return o3tl::getToken(version, u'.', *index);
}
}
namespace dp_misc {
::dp_misc::Order compareVersions(
std::u16string_view version1, std::u16string_view version2)
{
for (size_t i1 = 0, i2 = 0; i1 != std::u16string_view::npos || i2 != std::u16string_view::npos;) {
std::u16string_view e1(i1 != std::u16string_view::npos ? getElement(version1, &i1) : std::u16string_view());
std::u16string_view e2(i2 != std::u16string_view::npos ? getElement(version2, &i2) : std::u16string_view());
if (e1.size() < e2.size()) {
return ::dp_misc::LESS;
} else if (e1.size() > e2.size()) {
return ::dp_misc::GREATER;
} else if (e1 < e2) {
return ::dp_misc::LESS;
} else if (e1 > e2) {
return ::dp_misc::GREATER;
}
}
return ::dp_misc::EQUAL;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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