forked from qt-creator/qt-creator
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**
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**************************************************************************/
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#include "stringutils.h"
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#include <QtCore/QString>
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#include <QtCore/QStringList>
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#include <limits.h>
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namespace Utils {
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QTCREATOR_UTILS_EXPORT QString settingsKey(const QString &category)
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{
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QString rc(category);
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const QChar underscore = QLatin1Char('_');
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// Remove the sort category "X.Category" -> "Category"
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if (rc.size() > 2 && rc.at(0).isLetter() && rc.at(1) == QLatin1Char('.'))
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rc.remove(0, 2);
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// Replace special characters
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const int size = rc.size();
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for (int i = 0; i < size; i++) {
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const QChar c = rc.at(i);
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if (!c.isLetterOrNumber() && c != underscore)
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rc[i] = underscore;
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}
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return rc;
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}
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// Figure out length of common start of string ("C:\a", "c:\b" -> "c:\"
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static inline int commonPartSize(const QString &s1, const QString &s2)
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{
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const int size = qMin(s1.size(), s2.size());
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for (int i = 0; i < size; i++)
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if (s1.at(i) != s2.at(i))
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return i;
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return size;
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}
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QTCREATOR_UTILS_EXPORT QString commonPrefix(const QStringList &strings)
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{
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switch (strings.size()) {
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case 0:
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return QString();
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case 1:
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return strings.front();
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default:
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break;
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}
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// Figure out common string part: "C:\foo\bar1" "C:\foo\bar2" -> "C:\foo\bar"
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int commonLength = INT_MAX;
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const int last = strings.size() - 1;
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for (int i = 0; i < last; i++)
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commonLength = qMin(commonLength, commonPartSize(strings.at(i), strings.at(i + 1)));
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if (!commonLength)
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return QString();
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return strings.at(0).left(commonLength);
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}
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QTCREATOR_UTILS_EXPORT QString commonPath(const QStringList &files)
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{
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QString common = commonPrefix(files);
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// Find common directory part: "C:\foo\bar" -> "C:\foo"
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int lastSeparatorPos = common.lastIndexOf(QLatin1Char('/'));
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if (lastSeparatorPos == -1)
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lastSeparatorPos = common.lastIndexOf(QLatin1Char('\\'));
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if (lastSeparatorPos == -1)
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return QString();
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if (lastSeparatorPos == -1)
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return QString();
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#ifdef Q_OS_UNIX
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if (lastSeparatorPos == 0) // Unix: "/a", "/b" -> '/'
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lastSeparatorPos = 1;
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#endif
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common.truncate(lastSeparatorPos);
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return common;
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}
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} // namespace Utils
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