From 38be0d13830efd2d98281c645c3a60afe05ffece Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12 --- src/corelib/io/qfilesystementry.cpp | 383 ++++++++++++++++++++++++++++++++++++ 1 file changed, 383 insertions(+) create mode 100644 src/corelib/io/qfilesystementry.cpp (limited to 'src/corelib/io/qfilesystementry.cpp') diff --git a/src/corelib/io/qfilesystementry.cpp b/src/corelib/io/qfilesystementry.cpp new file mode 100644 index 0000000000..ccbb10d82c --- /dev/null +++ b/src/corelib/io/qfilesystementry.cpp @@ -0,0 +1,383 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qfilesystementry_p.h" + +#include +#include +#include +#ifdef Q_OS_WIN +#include +#endif + +QT_BEGIN_NAMESPACE + +#ifdef Q_OS_WIN +static bool isUncRoot(const QString &server) +{ + QString localPath = QDir::toNativeSeparators(server); + if (!localPath.startsWith(QLatin1String("\\\\"))) + return false; + + int idx = localPath.indexOf(QLatin1Char('\\'), 2); + if (idx == -1 || idx + 1 == localPath.length()) + return true; + + localPath = localPath.right(localPath.length() - idx - 1).trimmed(); + return localPath.isEmpty(); +} + +static inline QString fixIfRelativeUncPath(const QString &path) +{ + QString currentPath = QDir::currentPath(); + if (currentPath.startsWith(QLatin1String("//"))) + return currentPath % QChar(QLatin1Char('/')) % path; + return path; +} +#endif + +QFileSystemEntry::QFileSystemEntry() + : m_lastSeparator(0), + m_firstDotInFileName(0), + m_lastDotInFileName(0) +{ +} + +/*! + \internal + Use this constructor when the path is supplied by user code, as it may contain a mix + of '/' and the native separator. + */ +QFileSystemEntry::QFileSystemEntry(const QString &filePath) + : m_filePath(QDir::fromNativeSeparators(filePath)), + m_lastSeparator(-2), + m_firstDotInFileName(-2), + m_lastDotInFileName(0) +{ +} + +/*! + \internal + Use this constructor when the path is guaranteed to be in internal format, i.e. all + directory separators are '/' and not the native separator. + */ +QFileSystemEntry::QFileSystemEntry(const QString &filePath, FromInternalPath /* dummy */) + : m_filePath(filePath), + m_lastSeparator(-2), + m_firstDotInFileName(-2), + m_lastDotInFileName(0) +{ +} + +/*! + \internal + Use this constructor when the path comes from a native API + */ +QFileSystemEntry::QFileSystemEntry(const NativePath &nativeFilePath, FromNativePath /* dummy */) + : m_nativeFilePath(nativeFilePath), + m_lastSeparator(-2), + m_firstDotInFileName(-2), + m_lastDotInFileName(0) +{ +} + +QFileSystemEntry::QFileSystemEntry(const QString &filePath, const NativePath &nativeFilePath) + : m_filePath(QDir::fromNativeSeparators(filePath)), + m_nativeFilePath(nativeFilePath), + m_lastSeparator(-2), + m_firstDotInFileName(-2), + m_lastDotInFileName(0) +{ +} + +QString QFileSystemEntry::filePath() const +{ + resolveFilePath(); + return m_filePath; +} + +QFileSystemEntry::NativePath QFileSystemEntry::nativeFilePath() const +{ + resolveNativeFilePath(); + return m_nativeFilePath; +} + +void QFileSystemEntry::resolveFilePath() const +{ + if (m_filePath.isEmpty() && !m_nativeFilePath.isEmpty()) { +#if defined(QFILESYSTEMENTRY_NATIVE_PATH_IS_UTF16) + m_filePath = QDir::fromNativeSeparators(m_nativeFilePath); +#ifdef Q_OS_WIN + if (m_filePath.startsWith(QLatin1String("//?/UNC/"))) + m_filePath = m_filePath.remove(2,6); + if (m_filePath.startsWith(QLatin1String("//?/"))) + m_filePath = m_filePath.remove(0,4); +#endif +#else + m_filePath = QDir::fromNativeSeparators(QFile::decodeName(m_nativeFilePath)); +#endif + } +} + +void QFileSystemEntry::resolveNativeFilePath() const +{ + if (!m_filePath.isEmpty() && m_nativeFilePath.isEmpty()) { +#ifdef Q_OS_WIN + QString filePath = m_filePath; + if (isRelative()) + filePath = fixIfRelativeUncPath(m_filePath); + m_nativeFilePath = QFSFileEnginePrivate::longFileName(QDir::toNativeSeparators(filePath)); +#elif defined(QFILESYSTEMENTRY_NATIVE_PATH_IS_UTF16) + m_nativeFilePath = QDir::toNativeSeparators(m_filePath); +#else + m_nativeFilePath = QFile::encodeName(QDir::toNativeSeparators(m_filePath)); +#endif + } +} + +QString QFileSystemEntry::fileName() const +{ + findLastSeparator(); +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + if (m_lastSeparator == -1 && m_filePath.length() >= 2 && m_filePath.at(1) == QLatin1Char(':')) + return m_filePath.mid(2); +#endif + return m_filePath.mid(m_lastSeparator + 1); +} + +QString QFileSystemEntry::path() const +{ + findLastSeparator(); + if (m_lastSeparator == -1) { +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + if (m_filePath.length() >= 2 && m_filePath.at(1) == QLatin1Char(':')) + return m_filePath.left(2); +#endif + return QString(QLatin1Char('.')); + } + if (m_lastSeparator == 0) + return QString(QLatin1Char('/')); +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + if (m_lastSeparator == 2 && m_filePath.at(1) == QLatin1Char(':')) + return m_filePath.left(m_lastSeparator + 1); +#endif + return m_filePath.left(m_lastSeparator); +} + +QString QFileSystemEntry::baseName() const +{ + findFileNameSeparators(); +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + if (m_lastSeparator == -1 && m_filePath.length() >= 2 && m_filePath.at(1) == QLatin1Char(':')) + return m_filePath.mid(2); +#endif + int length = -1; + if (m_firstDotInFileName >= 0) { + length = m_firstDotInFileName; + if (m_lastSeparator != -1) // avoid off by one + length--; + } + return m_filePath.mid(m_lastSeparator + 1, length); +} + +QString QFileSystemEntry::completeBaseName() const +{ + findFileNameSeparators(); +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + if (m_lastSeparator == -1 && m_filePath.length() >= 2 && m_filePath.at(1) == QLatin1Char(':')) + return m_filePath.mid(2); +#endif + int length = -1; + if (m_firstDotInFileName >= 0) { + length = m_firstDotInFileName + m_lastDotInFileName; + if (m_lastSeparator != -1) // avoid off by one + length--; + } + return m_filePath.mid(m_lastSeparator + 1, length); +} + +QString QFileSystemEntry::suffix() const +{ + findFileNameSeparators(); + + if (m_lastDotInFileName == -1) + return QString(); + + return m_filePath.mid(qMax((qint16)0, m_lastSeparator) + m_firstDotInFileName + m_lastDotInFileName + 1); +} + +QString QFileSystemEntry::completeSuffix() const +{ + findFileNameSeparators(); + if (m_firstDotInFileName == -1) + return QString(); + + return m_filePath.mid(qMax((qint16)0, m_lastSeparator) + m_firstDotInFileName + 1); +} + +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) +bool QFileSystemEntry::isRelative() const +{ + resolveFilePath(); + return (m_filePath.isEmpty() || (!m_filePath.isEmpty() && (m_filePath[0].unicode() != '/') + && (!(m_filePath.length() >= 2 && m_filePath[1].unicode() == ':')))); +} + +bool QFileSystemEntry::isAbsolute() const +{ + resolveFilePath(); + return (!m_filePath.isEmpty() && ((m_filePath.length() >= 3 + && (m_filePath[0].isLetter() && m_filePath[1].unicode() == ':' && m_filePath[2].unicode() == '/')) +#ifdef Q_OS_WIN + || (m_filePath.length() >= 2 && (m_filePath.at(0) == QLatin1Char('/') && m_filePath.at(1) == QLatin1Char('/'))) +#endif + )); +} +#else +bool QFileSystemEntry::isRelative() const +{ + return !isAbsolute(); +} + +bool QFileSystemEntry::isAbsolute() const +{ + resolveFilePath(); + return (!m_filePath.isEmpty() && (m_filePath[0].unicode() == '/')); +} +#endif + +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) +bool QFileSystemEntry::isDriveRoot() const +{ + resolveFilePath(); + return (m_filePath.length() == 3 + && m_filePath.at(0).isLetter() && m_filePath.at(1) == QLatin1Char(':') + && m_filePath.at(2) == QLatin1Char('/')); +} +#endif + +bool QFileSystemEntry::isRoot() const +{ + resolveFilePath(); + if (m_filePath == QLatin1String("/") +#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN) + || isDriveRoot() +#if defined(Q_OS_WIN) + || isUncRoot(m_filePath) +#endif +#endif + ) + return true; + + return false; +} + +bool QFileSystemEntry::isEmpty() const +{ + resolveNativeFilePath(); + return m_nativeFilePath.isEmpty(); +} + +// private methods + +void QFileSystemEntry::findLastSeparator() const +{ + if (m_lastSeparator == -2) { + resolveFilePath(); + m_lastSeparator = -1; + for (int i = m_filePath.size() - 1; i >= 0; --i) { + if (m_filePath[i].unicode() == '/') { + m_lastSeparator = i; + break; + } + } + } +} + +void QFileSystemEntry::findFileNameSeparators() const +{ + if (m_firstDotInFileName == -2) { + resolveFilePath(); + int firstDotInFileName = -1; + int lastDotInFileName = -1; + int lastSeparator = m_lastSeparator; + + int stop; + if (lastSeparator < 0) { + lastSeparator = -1; + stop = 0; + } else { + stop = lastSeparator; + } + + int i = m_filePath.size() - 1; + for (; i >= stop; --i) { + if (m_filePath[i].unicode() == '.') { + firstDotInFileName = lastDotInFileName = i; + break; + } else if (m_filePath[i].unicode() == '/') { + lastSeparator = i; + break; + } + } + + if (lastSeparator != i) { + for (--i; i >= stop; --i) { + if (m_filePath[i].unicode() == '.') + firstDotInFileName = i; + else if (m_filePath[i].unicode() == '/') { + lastSeparator = i; + break; + } + } + } + m_lastSeparator = lastSeparator; + m_firstDotInFileName = firstDotInFileName == -1 ? -1 : firstDotInFileName - qMax(0, lastSeparator); + if (lastDotInFileName == -1) + m_lastDotInFileName = -1; + else if (firstDotInFileName == lastDotInFileName) + m_lastDotInFileName = 0; + else + m_lastDotInFileName = lastDotInFileName - firstDotInFileName; + } +} + +QT_END_NAMESPACE -- cgit v1.2.3