forked from qt-creator/qt-creator
144 lines
4.8 KiB
C++
144 lines
4.8 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) 2011 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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** No Commercial Usage
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**
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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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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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**************************************************************************/
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#include "filenamevalidatinglineedit.h"
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#include "qtcassert.h"
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#include <QtCore/QRegExp>
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#include <QtCore/QDebug>
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namespace Utils {
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#define WINDOWS_DEVICES "CON|AUX|PRN|COM1|COM2|LPT1|LPT2|NUL"
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// Naming a file like a device name will break on Windows, even if it is
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// "com1.txt". Since we are cross-platform, we generally disallow such file
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// names.
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static const QRegExp &windowsDeviceNoSubDirPattern()
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{
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static const QRegExp rc(QLatin1String(WINDOWS_DEVICES),
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Qt::CaseInsensitive);
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QTC_ASSERT(rc.isValid(), return rc);
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return rc;
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}
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static const QRegExp &windowsDeviceSubDirPattern()
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{
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static const QRegExp rc(QLatin1String(".*[/\\\\](" WINDOWS_DEVICES ")"), Qt::CaseInsensitive);
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QTC_ASSERT(rc.isValid(), return rc);
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return rc;
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}
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// ----------- FileNameValidatingLineEdit
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FileNameValidatingLineEdit::FileNameValidatingLineEdit(QWidget *parent) :
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BaseValidatingLineEdit(parent),
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m_allowDirectories(false),
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m_unused(0)
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{
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}
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bool FileNameValidatingLineEdit::allowDirectories() const
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{
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return m_allowDirectories;
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}
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void FileNameValidatingLineEdit::setAllowDirectories(bool v)
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{
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m_allowDirectories = v;
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}
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/* Validate a file base name, check for forbidden characters/strings. */
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#ifdef Q_OS_WIN
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# define SLASHES "/\\"
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#else
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# define SLASHES "/"
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#endif
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static const char *notAllowedCharsSubDir = "?:&*\"|#%<> ";
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static const char *notAllowedCharsNoSubDir = "?:&*\"|#%<> "SLASHES;
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static const char *notAllowedSubStrings[] = {".."};
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bool FileNameValidatingLineEdit::validateFileName(const QString &name,
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bool allowDirectories,
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QString *errorMessage /* = 0*/)
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{
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if (name.isEmpty()) {
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if (errorMessage)
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*errorMessage = tr("Name is empty.");
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return false;
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}
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// Characters
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const char *notAllowedChars = allowDirectories ? notAllowedCharsSubDir : notAllowedCharsNoSubDir;
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for (const char *c = notAllowedChars; *c; c++)
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if (name.contains(QLatin1Char(*c))) {
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if (errorMessage) {
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if (QChar(*c).isSpace()) {
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*errorMessage = tr("Name contains white space.");
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} else {
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*errorMessage = tr("Invalid character '%1'.").arg(*c);
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}
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}
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return false;
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}
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// Substrings
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const int notAllowedSubStringCount = sizeof(notAllowedSubStrings)/sizeof(const char *);
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for (int s = 0; s < notAllowedSubStringCount; s++) {
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const QLatin1String notAllowedSubString(notAllowedSubStrings[s]);
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if (name.contains(notAllowedSubString)) {
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if (errorMessage)
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*errorMessage = tr("Invalid characters '%1'.").arg(QString(notAllowedSubString));
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return false;
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}
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}
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// Windows devices
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bool matchesWinDevice = windowsDeviceNoSubDirPattern().exactMatch(name);
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if (!matchesWinDevice && allowDirectories)
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matchesWinDevice = windowsDeviceSubDirPattern().exactMatch(name);
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if (matchesWinDevice) {
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if (errorMessage)
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*errorMessage = tr("Name matches MS Windows device. (%1).").
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arg(windowsDeviceNoSubDirPattern().pattern().replace(QLatin1Char('|'), QLatin1Char(',')));
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return false;
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}
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return true;
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}
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bool FileNameValidatingLineEdit::validate(const QString &value, QString *errorMessage) const
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{
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return validateFileName(value, m_allowDirectories, errorMessage);
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}
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} // namespace Utils
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