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/*
Scan Tailor - Interactive post-processing tool for scanned pages.
Copyright (C) Joseph Artsimovich <joseph.artsimovich@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "RelinkablePath.h"
#include <QStringList>
#ifndef Q_MOC_RUN
#include <boost/foreach.hpp>
#endif
RelinkablePath::RelinkablePath(QString const& path, Type type)
: m_normalizedPath(normalize(path))
, m_type(type)
{
}
QString
RelinkablePath::normalize(QString const& path)
{
QString front_slashes(path);
front_slashes.replace(QChar('\\'), QLatin1String("/"));
QStringList new_components;
BOOST_FOREACH(QString const& comp, front_slashes.split(QChar('/'), QString::KeepEmptyParts)) {
if (comp.isEmpty()) {
if (new_components.isEmpty()
#if _WIN32
|| (new_components.size() == 1 && new_components.front().isEmpty())
#endif
) {
// This will create a leading slash or maybe two (for "\\host\share" type of paths).
new_components.push_back(comp);
} else {
// This will get rid of redundant slashes, including the trailing slash.
continue;
}
} else if (comp == ".") {
continue;
} else if (comp == "..") {
if (new_components.isEmpty()) {
return QString(); // Error.
}
QString const& last_comp = new_components.back();
if (last_comp.isEmpty() || last_comp.endsWith(QChar(':'))) {
return QString(); // Error.
}
new_components.pop_back();
} else {
new_components.push_back(comp);
}
}
return new_components.join(QChar('/'));
}
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