/****************************************************************************
**
**
** Implementation of QDir class
**
** Created : 950427
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the tools module of the Qt GUI Toolkit.
**
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** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
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** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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** information about Qt Commercial License Agreements.
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**********************************************************************/
#include "qglobal.h"
#include "qdir.h"
#ifndef QT_NO_DIR
#include "qfileinfo.h"
#include "qfiledefs_p.h"
#include "qregexp.h"
#include "qstringlist.h"
#include <stdlib.h>
#include <ctype.h>
// NOT REVISED
/*!
\class QDir qdir.h
\brief Traverses directory structures and contents in a
platform-independent way.
\ingroup io
A QDir can point to a file using either a relative or an absolute file
path. Absolute file paths begin with the directory separator ('/') or a
drive specification (not applicable to UNIX). Relative file names begin
with a directory name or a file name and specify a path relative to the
current directory.
An example of an absolute path is the string "/tmp/quartz", a relative
path might look like "src/fatlib". You can use the function isRelative()
to check if a QDir is using a relative or an absolute file path. You can
call the function convertToAbs() to convert a relative QDir to an
absolute one.
The directory "example" under the current directory is checked for existence
in the example below:
\code
QDir d( "example" ); // "./example"
if ( !d.exists() )
qWarning( "Cannot find the example directory" );
\endcode
If you always use '/' as a directory separator, Qt will translate your
paths to conform to the underlying operating system.
cd() and cdUp() can be used to navigate the directory tree. Note that the
logical cd and cdUp operations are not performed if the new directory does
not exist.
Example:
\code
QDir d = QDir::root(); // "/"
if ( !d.cd("tmp") ) { // "/tmp"
qWarning( "Cannot find the \"/tmp\" directory" );
} else {
QFile f( d.filePath("ex1.txt") ); // "/tmp/ex1.txt"
if ( !f.open(IO_ReadWrite) )
qWarning( "Cannot create the file %s", f.name() );
}
\endcode
To read the contents of a directory you can use the entryList() and
entryInfoList() functions.
Example:
\code
#include <stdio.h>
#include <qdir.h>
//
// This program scans the current directory and lists all files
// that are not symbolic links, sorted by size with the smallest files
// first.
//
int main( int argc, char **argv )
{
QDir d;
d.setFilter( QDir::Files | QDir::Hidden | QDir::NoSymLinks );
d.setSorting( QDir::Size | QDir::Reversed );
const QFileInfoList *list = d.entryInfoList();
QFileInfoListIterator it( *list ); // create list iterator
QFileInfo *fi; // pointer for traversing
printf( " BYTES FILENAME\n" ); // print header
while ( (fi=it.current()) ) { // for each file...
printf( "%10li %s\n", fi->size(), fi->fileName().data() );
++it; // goto next list element
}
}
\endcode
*/
/*!
Constructs a QDir pointing to the current directory.
\sa currentDirPath()
*/
QDir::QDir()
{
dPath = QString::fromLatin1(".");
init();
}
/*!
Constructs a QDir.
\arg \e path is the directory.
\arg \e nameFilter is the file name filter.
\arg \e sortSpec is the sort specification, which describes how to
sort the files in the directory.
\arg \e filterSpec is the filter specification, which describes how
to filter the files in the directory.
Most of these arguments (except \e path) have optional values.
Example:
\code
// lists all files in /tmp
QDir d( "/tmp" );
for ( int i=0; i<d.count(); i++ )
printf( "%s\n", d[i] );
\endcode
If \e path is "" or null, the directory is set to "." (the current
directory). If \e nameFilter is "" or null, it is set to "*" (all
files).
No check is made to ensure that the directory exists.
\sa exists(), setPath(), setNameFilter(), setFilter(), setSorting()
*/
QDir::QDir( const QString &path, const QString &nameFilter,
int sortSpec, int filterSpec )
{
init();
dPath = cleanDirPath( path );
if ( dPath.isEmpty() )
dPath = QString::fromLatin1(".");
nameFilt = nameFilter;
if ( nameFilt.isEmpty() )
nameFilt = QString::fromLatin1("*");
filtS = (FilterSpec)filterSpec;
sortS = (SortSpec)sortSpec;
}
/*!
Constructs a QDir that is a copy of the given directory.
\sa operator=()
*/
QDir::QDir( const QDir &d )
{
dPath = d.dPath;
fList = 0;
fiList = 0;
nameFilt = d.nameFilt;
dirty = TRUE;
allDirs = d.allDirs;
filtS = d.filtS;
sortS = d.sortS;
}
void QDir::init()
{
fList = 0;
fiList = 0;
nameFilt = QString::fromLatin1("*");
dirty = TRUE;
allDirs = FALSE;
filtS = All;
sortS = SortSpec(Name | IgnoreCase);
}
/*!
Destructs the QDir and cleans up.
*/
QDir::~QDir()
{
if ( fList )
delete fList;
if ( fiList )
delete fiList;
}
/*!
Sets the path of the directory. The path is cleaned of redundant ".", ".."
and multiple separators. No check is made to ensure that a directory
with this path exists.
The path can be either absolute or relative. Absolute paths begin with the
directory separator ('/') or a drive specification (not
applicable to UNIX).
Relative file names begin with a directory name or a file name and specify
a path relative to the current directory. An example of
an absolute path is the string "/tmp/quartz", a relative path might look like
"src/fatlib". You can use the function isRelative() to check if a QDir
is using a relative or an absolute file path. You can call the function
convertToAbs() to convert a relative QDir to an absolute one.
\sa path(), absPath(), exists(), cleanDirPath(), dirName(),
absFilePath(), isRelative(), convertToAbs()
*/
void QDir::setPath( const QString &path )
{
dPath = cleanDirPath( path );
if ( dPath.isEmpty() )
dPath = QString::fromLatin1(".");
dirty = TRUE;
}
/*!
\fn QString QDir::path() const
Returns the path, this may contain symbolic links, but never contains
redundant ".", ".." or multiple separators.
The returned path can be either absolute or relative (see setPath()).
\sa setPath(), absPath(), exists(), cleanDirPath(), dirName(),
absFilePath(), convertSeparators()
*/
/*!
Returns the absolute (a path that starts with '/') path, which may
contain symbolic links, but never contains redundant ".", ".." or
multiple separators.
\sa setPath(), canonicalPath(), exists(), cleanDirPath(), dirName(),
absFilePath()
*/
QString QDir::absPath() const
{
if ( QDir::isRelativePath(dPath) ) {
QString tmp = currentDirPath();
if ( tmp.right(1) != QString::fromLatin1("/") )
tmp += '/';
tmp += dPath;
return cleanDirPath( tmp );
} else {
return cleanDirPath( dPath );
}
}
/*!
Returns the name of the directory, this is NOT the same as the path, e.g.
a directory with the name "mail", might have the path "/var/spool/mail".
If the directory has no name (e.g. the root directory) a null string is
returned.
No check is made to ensure that a directory with this name actually exists.
\sa path(), absPath(), absFilePath(), exists(), QString::isNull()
*/
QString QDir::dirName() const
{
int pos = dPath.findRev( '/' );
if ( pos == -1 )
return dPath;
return dPath.right( dPath.length() - pos - 1 );
}
/*!
Returns the path name of a file in the directory. Does NOT check if
the file actually exists in the directory. If the QDir is relative
the returned path name will also be relative. Redundant multiple separators
or "." and ".." directories in \e fileName will not be removed (see
cleanDirPath()).
If \e acceptAbsPath is TRUE a \e fileName starting with a separator
('/') will be returned without change.
If \e acceptAbsPath is FALSE an absolute path will be appended to
the directory path.
\sa absFilePath(), isRelative(), canonicalPath()
*/
QString QDir::filePath( const QString &fileName,
bool acceptAbsPath ) const
{
if ( acceptAbsPath && !isRelativePath(fileName) )
return QString(fileName);
QString tmp = dPath;
if ( tmp.isEmpty() || (tmp[(int)tmp.length()-1] != '/' && !!fileName &&
fileName[0] != '/') )
tmp += '/';
tmp += fileName;
return tmp;
}
/*!
Returns the absolute path name of a file in the directory. Does NOT check if
the file actually exists in the directory. Redundant multiple separators
or "." and ".." directories in \e fileName will NOT be removed (see
cleanDirPath()).
If \e acceptAbsPath is TRUE a \e fileName starting with a separator
('/') will be returned without change.
if \e acceptAbsPath is FALSE an absolute path will be appended to
the directory path.
\sa filePath()
*/
QString QDir::absFilePath( const QString &fileName,
bool acceptAbsPath ) const
{
if ( acceptAbsPath && !isRelativePath( fileName ) )
return fileName;
QString tmp = absPath();
if ( tmp.isEmpty() || (tmp[(int)tmp.length()-1] != '/' && !!fileName &&
fileName[0] != '/') )
tmp += '/';
tmp += fileName;
return tmp;
}
/*!
Converts the '/' separators in \a pathName to system native
separators. Returns the translated string.
On Windows, convertSeparators("c:/winnt/system32") returns
"c:\winnt\system32".
No conversion is done on UNIX.
*/
QString QDir::convertSeparators( const QString &pathName )
{
QString n( pathName );
#if defined(_OS_FATFS_) || defined(_OS_OS2EMX_)
for ( int i=0; i<(int)n.length(); i++ ) {
if ( n[i] == '/' )
n[i] = '\\';
}
#endif
return n;
}
/*!
Changes directory by descending into the given directory. Returns
TRUE if the new directory exists and is readable. Note that the logical
cd operation is NOT performed if the new directory does not exist.
If \e acceptAbsPath is TRUE a path starting with a separator ('/')
will cd to the absolute directory, if \e acceptAbsPath is FALSE
any number of separators at the beginning of \e dirName will be removed.
Example:
\code
QDir d = QDir::home(); // now points to home directory
if ( !d.cd("c++") ) { // now points to "c++" under home directory if OK
QFileInfo fi( d, "c++" );
if ( fi.exists() ) {
if ( fi.isDir() )
qWarning( "Cannot cd into \"%s\".", (char*)d.absFilePath("c++") );
else
qWarning( "Cannot create directory \"%s\"\n"
"A file named \"c++\" already exists in \"%s\"",
(const char *)d.absFilePath("c++"),
(const char *)d.path() );
return;
} else {
qWarning( "Creating directory \"%s\"",
(const char *) d.absFilePath("c++") );
if ( !d.mkdir( "c++" ) ) {
qWarning("Could not create directory \"%s\"",
(const char *)d.absFilePath("c++") );
return;
}
}
}
\endcode
Calling cd( ".." ) is equivalent to calling cdUp().
\sa cdUp(), isReadable(), exists(), path()
*/
bool QDir::cd( const QString &dirName, bool acceptAbsPath )
{
if ( dirName.isEmpty() || dirName==QString::fromLatin1(".") )
return TRUE;
QString old = dPath;
if ( acceptAbsPath && !isRelativePath(dirName) ) {
dPath = cleanDirPath( dirName );
} else {
if ( !isRoot() )
dPath += '/';
dPath += dirName;
if ( dirName.find('/') >= 0
|| old == QString::fromLatin1(".")
|| dirName == QString::fromLatin1("..") )
dPath = cleanDirPath( dPath );
}
if ( !exists() ) {
dPath = old; // regret
return FALSE;
}
dirty = TRUE;
return TRUE;
}
/*!
Changes directory by moving one directory up the path followed to arrive
at the current directory.
Returns TRUE if the new directory exists and is readable. Note that the
logical cdUp() operation is not performed if the new directory does not
exist.
\sa cd(), isReadable(), exists(), path()
*/
bool QDir::cdUp()
{
return cd( QString::fromLatin1("..") );
}
/*!
\fn QString QDir::nameFilter() const
Returns the string set by setNameFilter()
*/
/*!
Sets the name filter used by entryList() and entryInfoList().
The name filter is a wildcarding filter that understands "*" and "?"
wildcards, You may specify several filter entries separated by a " " or a ";". If
you want entryList() and entryInfoList() to list all files ending with
".cpp" and all files ending with ".h", you simply call
dir.setNameFilter("*.cpp *.h") or dir.setNameFilter("*.cpp;*.h")
\sa nameFilter(), setFilter()
*/
void QDir::setNameFilter( const QString &nameFilter )
{
nameFilt = nameFilter;
if ( nameFilt.isEmpty() )
nameFilt = QString::fromLatin1("*");
dirty = TRUE;
}
/*!
\fn QDir::FilterSpec QDir::filter() const
Returns the value set by setFilter()
*/
/*! \enum QDir::FilterSpec
This enum describes how QDir is to select what entries in a
directory to return. The filter value is specified by or-ing
together values from the following list: <ul>
<li> \c Dirs - List directories only
<li> \c Files - List files only
<li> \c Drives - List disk drives (does nothing under unix)
<li> \c NoSymLinks - Do not list symbolic links (where they exist)
<li> \c Readable - List files for which the application has read access.
<li> \c Writable - List files for which the application has write access.
<li> \c Executable - List files for which the application has execute access
<li> \c Modified - Only list files that have been modified (does nothing
under unix)
<li> \c Hidden - List hidden files (on unix, files starting with a .)
<li> \c System - List system files (does nothing under unix)
</ul>
If you do not set any of \c Readable, \c Writable or \c Executable,
QDir will set all three of them. This makes the default easy to
write and at the same time useful.
Examples: \c Readable|Writable means list all files for which the
application has read access, write access or both. \c Dirs|Drives
means list drives, directories, all files that the application can
read, write or execute, and also symlinks to such files/directories.
*/
/*!
Sets the filter used by entryList() and entryInfoList(). The filter is used
to specify the kind of files that should be returned by entryList() and
entryInfoList().
\sa filter(), setNameFilter()
*/
void QDir::setFilter( int filterSpec )
{
if ( filtS == (FilterSpec) filterSpec )
return;
filtS = (FilterSpec) filterSpec;
dirty = TRUE;
}
/*!
\fn QDir::SortSpec QDir::sorting() const
Returns the value set by setSorting()
\sa setSorting()
*/
/*! \enum QDir::SortSpec
This enum describes how QDir is to sort entries in a directory when
it returns a list of them. The sort value is specified by or-ing
together values from the following list: <ul>
<li> \c Name - sort by name
<li> \c Time - sort by time (modification time)
<li> \c Size - sort by file size
<li> \c Unsorted - do not sort
<li> \c DirsFirst - put all directories first in the list
<li> \c Reversed - reverse the sort order
<li> \c IgnoreCase - sort case-insensitively
</ul>
You can only specify one of the first four. If you specify both \c
DirsFirst and \c Reversed, directories are still put first but the
list is otherwise reversed.
*/
// ### Unsorted+DirsFirst ? Unsorted+Reversed?
/*!
Sets the sorting order used by entryList() and entryInfoList().
The \e sortSpec is specified by or-ing values from the enum
SortSpec. The different values are:
One of these:
<dl compact>
<dt>Name<dd> Sort by name (alphabetical order).
<dt>Time<dd> Sort by time (most recent first).
<dt>Size<dd> Sort by size (largest first).
<dt>Unsorted<dd> Use the operating system order (UNIX does NOT sort
alphabetically).
ORed with zero or more of these:
<dt>DirsFirst<dd> Always put directory names first.
<dt>Reversed<dd> Reverse sort order.
<dt>IgnoreCase<dd> Ignore case when sorting by name.
</dl>
*/
void QDir::setSorting( int sortSpec )
{
if ( sortS == (SortSpec) sortSpec )
return;
sortS = (SortSpec) sortSpec;
dirty = TRUE;
}
/*!
\fn bool QDir::matchAllDirs() const
Returns the value set by setMatchAllDirs()
\sa setMatchAllDirs()
*/
/*!
If \e enable is TRUE, all directories will be listed (even if they do not
match the filter or the name filter), otherwise only matched directories
will be listed.
\bug Currently, directories that do not match the filter will not be
included (the name filter will be ignored as expected).
\sa matchAllDirs()
*/
void QDir::setMatchAllDirs( bool enable )
{
if ( (bool)allDirs == enable )
return;
allDirs = enable;
dirty = TRUE;
}
/*!
Returns the number of files that was found.
Equivalent to entryList().count().
\sa operator[](), entryList()
*/
uint QDir::count() const
{
return entryList().count();
}
/*!
Returns the file name at position \e index in the list of found file
names.
Equivalent to entryList().at(index).
Returns null if the \e index is out of range or if the entryList()
function failed.
\sa count(), entryList()
*/
QString QDir::operator[]( int index ) const
{
entryList();
return fList && index >= 0 && index < (int)fList->count() ?
(*fList)[index] : QString::null;
}
/*!
This function is included to easy porting from Qt 1.x to Qt 2.0,
it is the same as entryList(), but encodes the filenames as 8-bit
strings using QFile::encodedName().
It is more efficient to use entryList().
*/
QStrList QDir::encodedEntryList( int filterSpec, int sortSpec ) const
{
QStrList r;
QStringList l = entryList(filterSpec,sortSpec);
for ( QStringList::Iterator it = l.begin(); it != l.end(); ++it ) {
r.append( QFile::encodeName(*it) );
}
return r;
}
/*!
This function is included to easy porting from Qt 1.x to Qt 2.0,
it is the same as entryList(), but encodes the filenames as 8-bit
strings using QFile::encodedName().
It is more efficient to use entryList().
*/
QStrList QDir::encodedEntryList( const QString &nameFilter,
int filterSpec,
int sortSpec ) const
{
QStrList r;
QStringList l = entryList(nameFilter,filterSpec,sortSpec);
for ( QStringList::Iterator it = l.begin(); it != l.end(); ++it ) {
r.append( QFile::encodeName(*it) );
}
return r;
}
/*!
Returns a list of the names of all files and directories in the directory
indicated by the setSorting(), setFilter() and setNameFilter()
specifications.
The the filter and sorting specifications can be overridden using the
\e filterSpec and \e sortSpec arguments.
Returns an empty list if the directory is unreadable or does not exist.
\sa entryInfoList(), setNameFilter(), setSorting(), setFilter(),
encodedEntryList()
*/
QStringList QDir::entryList( int filterSpec, int sortSpec ) const
{
if ( !dirty && filterSpec == (int)DefaultFilter &&
sortSpec == (int)DefaultSort )
return *fList;
return entryList( nameFilt, filterSpec, sortSpec );
}
/*!
Returns a list of the names of all files and directories in the directory
indicated by the setSorting(), setFilter() and setNameFilter()
specifications.
The the filter and sorting specifications can be overridden using the
\e nameFilter, \e filterSpec and \e sortSpec arguments.
Returns and empty list if the directory is unreadable or does not exist.
\sa entryInfoList(), setNameFilter(), setSorting(), setFilter(),
encodedEntryList()
*/
QStringList QDir::entryList( const QString &nameFilter,
int filterSpec, int sortSpec ) const
{
if ( filterSpec == (int)DefaultFilter )
filterSpec = filtS;
if ( sortSpec == (int)DefaultSort )
sortSpec = sortS;
QDir *that = (QDir*)this; // mutable function
if ( that->readDirEntries(nameFilter, filterSpec, sortSpec) )
return *that->fList;
else
return QStringList();
}
/*!
Returns a list of QFileInfo objects for all files and directories in
the directory pointed to using the setSorting(), setFilter() and
setNameFilter() specifications.
The the filter and sorting specifications can be overridden using the
\e filterSpec and \e sortSpec arguments.
Returns 0 if the directory is unreadable or does not exist.
The returned pointer is a const pointer to a QFileInfoList. The list is
owned by the QDir object and will be reused on the next call to
entryInfoList() for the same QDir instance. If you want to keep the
entries of the list after a subsequent call to this function you will
need to copy them.
\sa entryList(), setNameFilter(), setSorting(), setFilter()
*/
const QFileInfoList *QDir::entryInfoList( int filterSpec, int sortSpec ) const
{
if ( !dirty && filterSpec == (int)DefaultFilter &&
sortSpec == (int)DefaultSort )
return fiList;
return entryInfoList( nameFilt, filterSpec, sortSpec );
}
/*!
Returns a list of QFileInfo objects for all files and directories in
the directory pointed to using the setSorting(), setFilter() and
setNameFilter() specifications.
The the filter and sorting specifications can be overridden using the
\e nameFilter, \e filterSpec and \e sortSpec arguments.
Returns 0 if the directory is unreadable or does not exist.
The returned pointer is a const pointer to a QFileInfoList. The list is
owned by the QDir object and will be reused on the next call to
entryInfoList() for the same QDir instance. If you want to keep the
entries of the list after a subsequent call to this function you will
need to copy them.
\sa entryList(), setNameFilter(), setSorting(), setFilter()
*/
const QFileInfoList *QDir::entryInfoList( const QString &nameFilter,
int filterSpec, int sortSpec ) const
{
if ( filterSpec == (int)DefaultFilter )
filterSpec = filtS;
if ( sortSpec == (int)DefaultSort )
sortSpec = sortS;
QDir *that = (QDir*)this; // mutable function
if ( that->readDirEntries(nameFilter, filterSpec, sortSpec) )
return that->fiList;
else
return 0;
}
/*!
Returns TRUE if the directory exists. (If a file with the same
name is found this function will of course return FALSE).
\sa QFileInfo::exists(), QFile::exists()
*/
bool QDir::exists() const
{
QFileInfo fi( dPath );
return fi.exists() && fi.isDir();
}
/*!
Returns TRUE if the directory path is relative to the current directory,
FALSE if the path is absolute (e.g. under UNIX a path is relative if it
does not start with a '/').
According to Einstein this function should always return TRUE.
\sa convertToAbs()
*/
bool QDir::isRelative() const
{
return isRelativePath( dPath );
}
/*!
Converts the directory path to an absolute path. If it is already
absolute nothing is done.
\sa isRelative()
*/
void QDir::convertToAbs()
{
dPath = absPath();
}
/*!
Makes a copy of d and assigns it to this QDir.
*/
QDir &QDir::operator=( const QDir &d )
{
dPath = d.dPath;
delete fList;
fList = 0;
delete fiList;
fiList = 0;
nameFilt = d.nameFilt;
dirty = TRUE;
allDirs = d.allDirs;
filtS = d.filtS;
sortS = d.sortS;
return *this;
}
/*!
Sets the directory path to be the given path.
*/
QDir &QDir::operator=( const QString &path )
{
dPath = cleanDirPath( path );
dirty = TRUE;
return *this;
}
/*!
\fn bool QDir::operator!=( const QDir &d ) const
Returns TRUE if the \e d and this dir have different path or
different sort/filter settings, otherwise FALSE.
*/
/*!
Returns TRUE if the \e d and this dir have the same path and all sort
and filter settings are equal, otherwise FALSE.
*/
bool QDir::operator==( const QDir &d ) const
{
return dPath == d.dPath &&
nameFilt == d.nameFilt &&
allDirs == d.allDirs &&
filtS == d.filtS &&
sortS == d.sortS;
}
/*!
Removes a file.
If \e acceptAbsPath is TRUE a path starting with a separator ('/')
will remove the file with the absolute path, if \e acceptAbsPath is FALSE
any number of separators at the beginning of \e fileName will be removed.
Returns TRUE if successful, otherwise FALSE.
*/
bool QDir::remove( const QString &fileName, bool acceptAbsPath )
{
if ( fileName.isEmpty() ) {
#if defined(CHECK_NULL)
qWarning( "QDir::remove: Empty or null file name" );
#endif
return FALSE;
}
QString p = filePath( fileName, acceptAbsPath );
return QFile::remove( p );
}
/*!
Checks for existence of a file.
If \e acceptAbsPaths is TRUE a path starting with a separator ('/')
will check the file with the absolute path, if \e acceptAbsPath is FALSE
any number of separators at the beginning of \e name will be removed.
Returns TRUE if the file exists, otherwise FALSE.
\sa QFileInfo::exists(), QFile::exists()
*/
bool QDir::exists( const QString &name, bool acceptAbsPath )
{
if ( name.isEmpty() ) {
#if defined(CHECK_NULL)
qWarning( "QDir::exists: Empty or null file name" );
#endif
return FALSE;
}
QString tmp = filePath( name, acceptAbsPath );
return QFile::exists( tmp );
}
/*!
Returns the native directory separator; '/' under UNIX and '\' under
MS-DOS, Windows NT and OS/2.
You do not need to use this function to build file paths. If you always
use '/', Qt will translate your paths to conform to the underlying
operating system.
*/
char QDir::separator()
{
#if defined(_OS_UNIX_)
return '/';
#elif defined (_OS_FATFS_)
return '\\';
#elif defined (_OS_MAC_)
return ':';
#else
return '/';
#endif
}
/*!
Returns the current directory.
\sa currentDirPath(), QDir::QDir()
*/
QDir QDir::current()
{
return QDir( currentDirPath() );
}
/*!
Returns the home directory.
\sa homeDirPath()
*/
QDir QDir::home()
{
return QDir( homeDirPath() );
}
/*!
Returns the root directory.
\sa rootDirPath() drives()
*/
QDir QDir::root()
{
return QDir( rootDirPath() );
}
/*!
\fn QString QDir::homeDirPath()
Returns the absolute path for the user's home directory,
\sa home()
*/
QStringList qt_makeFilterList( const QString &filter )
{
if ( filter.isEmpty() )
return QStringList();
QChar sep( ';' );
int i = filter.find( sep, 0 );
if ( i == -1 && filter.find( ' ', 0 ) != -1 )
sep = QChar( ' ' );
QStringList lst = QStringList::split( sep, filter );
QStringList lst2;
QStringList::Iterator it = lst.begin();
for ( ; it != lst.end(); ++it ) {
QString s = *it;
lst2 << s.stripWhiteSpace();
}
return lst2;
}
/*!
Returns TRUE if the \e fileName matches one of the wildcards in the list \e filters.
\sa QRegExp
*/
bool QDir::match( const QStringList &filters, const QString &fileName )
{
QStringList::ConstIterator sit = filters.begin();
bool matched = FALSE;
for ( ; sit != filters.end(); ++sit ) {
QRegExp regexp( (*sit).data(), FALSE, TRUE );
if ( regexp.match( fileName.data() ) != -1 ) {
matched = TRUE;
break;
}
}
return matched;
}
/*!
Returns TRUE if the \e fileName matches the wildcard \e filter.
\a Filter may also contain multiple wildcards separated by spaces or
semicolons.
\sa QRegExp
*/
bool QDir::match( const QString &filter, const QString &fileName )
{
QStringList lst = qt_makeFilterList( filter );
return match( lst, fileName );
}
/*!
Removes all multiple directory separators ('/') and resolves
any "." or ".." found in the path.
Symbolic links are kept. This function does not return the
canonical path, but rather the most simplified version of the input.
"../stuff" becomes "stuff", "stuff/../nonsense" becomes "nonsense"
and "\\stuff\\more\\..\\nonsense" becomes "\\stuff\\nonsense".
\sa absPath() canonicalPath()
*/
QString QDir::cleanDirPath( const QString &filePath )
{
QString name = filePath;
QString newPath;
if ( name.isEmpty() )
return name;
slashify( name );
bool addedSeparator;
if ( isRelativePath(name) ) {
addedSeparator = TRUE;
name.insert( 0, '/' );
} else {
addedSeparator = FALSE;
}
int ePos, pos, upLevel;
pos = ePos = name.length();
upLevel = 0;
int len;
while ( pos && (pos = name.findRev('/',--pos)) != -1 ) {
len = ePos - pos - 1;
if ( len == 2 && name.at(pos + 1) == '.'
&& name.at(pos + 2) == '.' ) {
upLevel++;
} else {
if ( len != 0 && (len != 1 || name.at(pos + 1) != '.') ) {
if ( !upLevel )
newPath = QString::fromLatin1("/")
+ name.mid(pos + 1, len) + newPath;
else
upLevel--;
}
}
ePos = pos;
}
if ( addedSeparator ) {
while ( upLevel-- )
newPath.insert( 0, QString::fromLatin1("/..") );
if ( !newPath.isEmpty() )
newPath.remove( 0, 1 );
else
newPath = QString::fromLatin1(".");
} else {
if ( newPath.isEmpty() )
newPath = QString::fromLatin1("/");
#if defined(_OS_FATFS_) || defined(_OS_OS2EMX_)
if ( name[0] == '/' ) {
if ( name[1] == '/' ) // "\\machine\x\ ..."
newPath.insert( 0, '/' );
} else {
newPath = name.left(2) + newPath;
}
#endif
}
return newPath;
}
int qt_cmp_si_sortSpec;
#if defined(Q_C_CALLBACKS)
extern "C" {
#endif
int qt_cmp_si( const void *n1, const void *n2 )
{
if ( !n1 || !n2 )
return 0;
QDirSortItem* f1 = (QDirSortItem*)n1;
QDirSortItem* f2 = (QDirSortItem*)n2;
if ( qt_cmp_si_sortSpec & QDir::DirsFirst )
if ( f1->item->isDir() != f2->item->isDir() )
return f1->item->isDir() ? -1 : 1;
int r = 0;
int sortBy = qt_cmp_si_sortSpec & QDir::SortByMask;
switch ( sortBy ) {
case QDir::Time:
r = f1->item->lastModified().secsTo(f2->item->lastModified());
break;
case QDir::Size:
r = f2->item->size() - f1->item->size();
break;
default:
;
}
if ( r == 0 && sortBy != QDir::Unsorted ) {
// Still not sorted - sort by name
bool ic = qt_cmp_si_sortSpec & QDir::IgnoreCase;
if ( f1->filename_cache.isNull() )
f1->filename_cache = ic ? f1->item->fileName().lower()
: f1->item->fileName();
if ( f2->filename_cache.isNull() )
f2->filename_cache = ic ? f2->item->fileName().lower()
: f2->item->fileName();
r = f1->filename_cache.compare(f2->filename_cache);
}
if ( r == 0 ) {
// Enforce an order - the order the items appear in the array
r = (int)((char*)n1 - (char*)n2);
}
if ( qt_cmp_si_sortSpec & QDir::Reversed )
return -r;
else
return r;
}
#if defined(Q_C_CALLBACKS)
}
#endif
#endif // QT_NO_DIR