25db1b74f1
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11809 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
817 lines
20 KiB
C++
817 lines
20 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/filename.cpp
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// Purpose: wxFileName - encapsulates a file path
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// Author: Robert Roebling, Vadim Zeitlin
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// Modified by:
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// Created: 28.12.2000
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// RCS-ID: $Id$
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// Copyright: (c) 2000 Robert Roebling
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#ifdef __GNUG__
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#pragma implementation "filename.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/intl.h"
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#include "wx/log.h"
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#endif
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#include "wx/filename.h"
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#include "wx/tokenzr.h"
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#include "wx/config.h" // for wxExpandEnvVars
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#include "wx/utils.h"
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#if wxUSE_DYNLIB_CLASS
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#include "wx/dynlib.h"
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#endif
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// For GetShort/LongPathName
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#ifdef __WIN32__
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#include <windows.h>
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#include "wx/msw/winundef.h"
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#endif
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxFileName construction
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// ----------------------------------------------------------------------------
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void wxFileName::Assign( const wxFileName &filepath )
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{
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m_ext = filepath.GetExt();
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m_name = filepath.GetName();
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m_dirs = filepath.GetDirs();
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}
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void wxFileName::Assign( const wxString& path,
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const wxString& name,
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const wxString& ext,
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wxPathFormat format )
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{
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wxStringTokenizer tn(path, GetPathSeparators(format),
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wxTOKEN_RET_EMPTY_ALL);
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int i = 0;
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m_dirs.Clear();
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while ( tn.HasMoreTokens() )
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{
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wxString token = tn.GetNextToken();
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// If the path starts with a slash (or two for a network path),
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// we need the first dir entry to be an empty for later reassembly.
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if ((i < 2) || !token.IsEmpty())
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m_dirs.Add( token );
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i ++;
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}
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m_ext = ext;
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m_name = name;
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}
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void wxFileName::Assign(const wxString& fullpath,
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wxPathFormat format)
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{
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wxString path, name, ext;
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SplitPath(fullpath, &path, &name, &ext, format);
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Assign(path, name, ext, format);
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}
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void wxFileName::Assign(const wxString& path,
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const wxString& fullname,
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wxPathFormat format)
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{
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wxString name, ext;
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SplitPath(fullname, NULL /* no path */, &name, &ext, format);
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Assign(path, name, ext, format);
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}
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void wxFileName::Clear()
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{
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m_dirs.Clear();
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m_name =
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m_ext = wxEmptyString;
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}
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/* static */
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wxFileName wxFileName::FileName(const wxString& file)
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{
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return wxFileName(file);
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}
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/* static */
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wxFileName wxFileName::DirName(const wxString& dir)
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{
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wxFileName fn;
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fn.AssignDir(dir);
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return fn;
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}
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// ----------------------------------------------------------------------------
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// existence tests
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// ----------------------------------------------------------------------------
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bool wxFileName::FileExists()
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{
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return wxFileName::FileExists( GetFullPath() );
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}
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bool wxFileName::FileExists( const wxString &file )
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{
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return ::wxFileExists( file );
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}
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bool wxFileName::DirExists()
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{
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return wxFileName::DirExists( GetFullPath() );
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}
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bool wxFileName::DirExists( const wxString &dir )
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{
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return ::wxDirExists( dir );
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}
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wxDateTime wxFileName::GetModificationTime()
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{
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wxDateTime ret( wxFileModificationTime( GetFullPath() ) );
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return ret;
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}
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// ----------------------------------------------------------------------------
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// CWD and HOME stuff
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// ----------------------------------------------------------------------------
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void wxFileName::AssignCwd()
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{
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AssignDir(wxFileName::GetCwd());
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}
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/* static */
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wxString wxFileName::GetCwd()
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{
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return ::wxGetCwd();
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}
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bool wxFileName::SetCwd()
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{
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return wxFileName::SetCwd( GetFullPath() );
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}
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bool wxFileName::SetCwd( const wxString &cwd )
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{
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return ::wxSetWorkingDirectory( cwd );
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}
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void wxFileName::AssignHomeDir()
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{
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AssignDir(wxFileName::GetHomeDir());
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}
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wxString wxFileName::GetHomeDir()
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{
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return ::wxGetHomeDir();
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}
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void wxFileName::AssignTempFileName( const wxString &prefix )
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{
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wxString fullname;
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if ( wxGetTempFileName(prefix, fullname) )
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{
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Assign(fullname);
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}
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else // error
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{
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Clear();
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}
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}
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// ----------------------------------------------------------------------------
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// directory operations
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// ----------------------------------------------------------------------------
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bool wxFileName::Mkdir( int perm, bool full )
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{
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return wxFileName::Mkdir( GetFullPath(), perm, full );
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}
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bool wxFileName::Mkdir( const wxString &dir, int perm, bool full )
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{
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if (full)
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{
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wxFileName filename(dir);
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wxArrayString dirs = filename.GetDirs();
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dirs.Add(filename.GetName());
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size_t count = dirs.GetCount();
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size_t i;
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wxString currPath;
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int noErrors = 0;
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for ( i = 0; i < count; i++ )
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{
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currPath += dirs[i];
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if (currPath.Last() == wxT(':'))
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{
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// Can't create a root directory so continue to next dir
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currPath += wxFILE_SEP_PATH;
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continue;
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}
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if (!DirExists(currPath))
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if (!wxMkdir(currPath, perm))
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noErrors ++;
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if ( (i < (count-1)) )
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currPath += wxFILE_SEP_PATH;
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}
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return (noErrors == 0);
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}
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else
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return ::wxMkdir( dir, perm );
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}
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bool wxFileName::Rmdir()
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{
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return wxFileName::Rmdir( GetFullPath() );
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}
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bool wxFileName::Rmdir( const wxString &dir )
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{
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return ::wxRmdir( dir );
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}
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// ----------------------------------------------------------------------------
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// path normalization
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// ----------------------------------------------------------------------------
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bool wxFileName::Normalize(wxPathNormalize flags,
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const wxString& cwd,
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wxPathFormat format)
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{
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// the existing path components
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wxArrayString dirs = GetDirs();
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// the path to prepend in front to make the path absolute
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wxFileName curDir;
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format = GetFormat(format);
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// make the path absolute
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if ( (flags & wxPATH_NORM_ABSOLUTE) && !IsAbsolute() )
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{
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if ( cwd.empty() )
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curDir.AssignCwd();
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else
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curDir.AssignDir(cwd);
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}
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// handle ~ stuff under Unix only
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if ( (format == wxPATH_UNIX) && (flags & wxPATH_NORM_TILDE) )
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{
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if ( !dirs.IsEmpty() )
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{
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wxString dir = dirs[0u];
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if ( !dir.empty() && dir[0u] == _T('~') )
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{
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curDir.AssignDir(wxGetUserHome(dir.c_str() + 1));
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dirs.RemoveAt(0u);
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}
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}
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}
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if ( curDir.IsOk() )
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{
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wxArrayString dirsNew = curDir.GetDirs();
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size_t count = dirs.GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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dirsNew.Add(dirs[n]);
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}
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dirs = dirsNew;
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}
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// now deal with ".", ".." and the rest
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m_dirs.Empty();
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size_t count = dirs.GetCount();
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for ( size_t n = 0; n < count; n++ )
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{
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wxString dir = dirs[n];
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if ( flags && wxPATH_NORM_DOTS )
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{
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if ( dir == wxT(".") )
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{
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// just ignore
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continue;
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}
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if ( dir == wxT("..") )
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{
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if ( m_dirs.IsEmpty() )
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{
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wxLogError(_("The path '%s' contains too many \"..\"!"),
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GetFullPath().c_str());
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return FALSE;
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}
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m_dirs.Remove(m_dirs.GetCount() - 1);
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continue;
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}
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}
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if ( flags & wxPATH_NORM_ENV_VARS )
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{
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dir = wxExpandEnvVars(dir);
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}
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if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
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{
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dir.MakeLower();
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}
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m_dirs.Add(dir);
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}
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if ( (flags & wxPATH_NORM_CASE) && !IsCaseSensitive(format) )
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{
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// VZ: expand env vars here too?
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m_name.MakeLower();
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m_ext.MakeLower();
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}
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#if defined(__WXMSW__) && defined(__WIN32__)
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if (flags & wxPATH_NORM_LONG)
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{
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Assign(GetLongPath());
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}
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#endif
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return TRUE;
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}
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// ----------------------------------------------------------------------------
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// filename kind tests
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// ----------------------------------------------------------------------------
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bool wxFileName::SameAs( const wxFileName &filepath, wxPathFormat format)
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{
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wxFileName fn1 = *this,
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fn2 = filepath;
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// get cwd only once - small time saving
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wxString cwd = wxGetCwd();
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fn1.Normalize(wxPATH_NORM_ALL, cwd, format);
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fn2.Normalize(wxPATH_NORM_ALL, cwd, format);
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if ( fn1.GetFullPath() == fn2.GetFullPath() )
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return TRUE;
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// TODO: compare inodes for Unix, this works even when filenames are
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// different but files are the same (symlinks) (VZ)
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return FALSE;
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}
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/* static */
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bool wxFileName::IsCaseSensitive( wxPathFormat format )
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{
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// only DOS filenames are case-sensitive
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return GetFormat(format) != wxPATH_DOS;
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}
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bool wxFileName::IsRelative( wxPathFormat format )
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{
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return !IsAbsolute(format);
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}
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bool wxFileName::IsAbsolute( wxPathFormat format )
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{
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wxChar ch = m_dirs.IsEmpty() ? _T('\0') : m_dirs[0u][0u];
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// Hack to cope with e.g. c:\thing - need something better
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wxChar driveSep = _T('\0');
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if (!m_dirs.IsEmpty() && m_dirs[0].Length() > 1)
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driveSep = m_dirs[0u][1u];
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// the path is absolute if it starts with a path separator or, only for
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// Unix filenames, with "~" or "~user"
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return IsPathSeparator(ch, format) ||
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driveSep == _T(':') ||
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(GetFormat(format) == wxPATH_UNIX && ch == _T('~') );
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}
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/* static */
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wxString wxFileName::GetPathSeparators(wxPathFormat format)
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{
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wxString seps;
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switch ( GetFormat(format) )
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{
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case wxPATH_DOS:
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// accept both as native APIs do
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seps << wxFILE_SEP_PATH_UNIX << wxFILE_SEP_PATH_DOS;
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break;
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default:
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wxFAIL_MSG( _T("unknown wxPATH_XXX style") );
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// fall through
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case wxPATH_UNIX:
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seps = wxFILE_SEP_PATH_UNIX;
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break;
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case wxPATH_MAC:
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seps = wxFILE_SEP_PATH_MAC;
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break;
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}
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return seps;
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}
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/* static */
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bool wxFileName::IsPathSeparator(wxChar ch, wxPathFormat format)
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{
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return GetPathSeparators(format).Find(ch) != wxNOT_FOUND;
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}
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bool wxFileName::IsWild( wxPathFormat format )
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{
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// FIXME: this is probably false for Mac and this is surely wrong for most
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// of Unix shells (think about "[...]")
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(void)format;
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return m_name.find_first_of(_T("*?")) != wxString::npos;
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}
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// ----------------------------------------------------------------------------
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// path components manipulation
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// ----------------------------------------------------------------------------
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void wxFileName::AppendDir( const wxString &dir )
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{
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m_dirs.Add( dir );
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}
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void wxFileName::PrependDir( const wxString &dir )
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{
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m_dirs.Insert( dir, 0 );
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}
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void wxFileName::InsertDir( int before, const wxString &dir )
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{
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m_dirs.Insert( dir, before );
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}
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void wxFileName::RemoveDir( int pos )
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{
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m_dirs.Remove( (size_t)pos );
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}
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// ----------------------------------------------------------------------------
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// accessors
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// ----------------------------------------------------------------------------
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void wxFileName::SetFullName(const wxString& fullname)
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{
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SplitPath(fullname, NULL /* no path */, &m_name, &m_ext);
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}
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wxString wxFileName::GetFullName() const
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{
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wxString fullname = m_name;
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if ( !m_ext.empty() )
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{
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fullname << wxFILE_SEP_EXT << m_ext;
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}
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return fullname;
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}
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wxString wxFileName::GetPath( bool add_separator, wxPathFormat format ) const
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{
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format = GetFormat( format );
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wxString ret;
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size_t count = m_dirs.GetCount();
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for ( size_t i = 0; i < count; i++ )
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{
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ret += m_dirs[i];
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if ( add_separator || (i < count) )
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ret += wxFILE_SEP_PATH;
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}
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return ret;
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}
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wxString wxFileName::GetFullPath( wxPathFormat format ) const
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{
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format = GetFormat( format );
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wxString ret;
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if (format == wxPATH_DOS)
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{
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for (size_t i = 0; i < m_dirs.GetCount(); i++)
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{
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ret += m_dirs[i];
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ret += '\\';
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}
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}
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else
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if (format == wxPATH_UNIX)
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{
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for (size_t i = 0; i < m_dirs.GetCount(); i++)
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{
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ret += m_dirs[i];
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ret += '/';
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}
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}
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else
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{
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for (size_t i = 0; i < m_dirs.GetCount(); i++)
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{
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ret += m_dirs[i];
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ret += ':';
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}
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}
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ret += m_name;
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if (!m_ext.IsEmpty())
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{
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ret += '.';
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ret += m_ext;
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}
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return ret;
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}
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// Return the short form of the path (returns identity on non-Windows platforms)
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wxString wxFileName::GetShortPath() const
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{
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#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
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wxString path(GetFullPath());
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wxString pathOut;
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DWORD sz = ::GetShortPathName(path, NULL, 0);
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bool ok = sz != 0;
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if ( ok )
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{
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ok = ::GetShortPathName
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(
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path,
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pathOut.GetWriteBuf(sz),
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sz
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) != 0;
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pathOut.UngetWriteBuf();
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}
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if (ok)
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return pathOut;
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return path;
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#else
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return GetFullPath();
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#endif
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}
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// Return the long form of the path (returns identity on non-Windows platforms)
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wxString wxFileName::GetLongPath() const
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{
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#if defined(__WXMSW__) && defined(__WIN32__) && !defined(__WXMICROWIN__)
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wxString path(GetFullPath());
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wxString pathOut;
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bool success = FALSE;
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// VZ: this code was disabled, why?
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#if 0 // wxUSE_DYNLIB_CLASS
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typedef DWORD (*GET_LONG_PATH_NAME)(const wxChar *, wxChar *, DWORD);
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static bool s_triedToLoad = FALSE;
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if ( !s_triedToLoad )
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{
|
|
s_triedToLoad = TRUE;
|
|
wxDllType dllKernel = wxDllLoader::LoadLibrary(_T("kernel32"));
|
|
if ( dllKernel )
|
|
{
|
|
// may succeed or fail depending on the Windows version
|
|
static GET_LONG_PATH_NAME s_pfnGetLongPathName = NULL;
|
|
#ifdef _UNICODE
|
|
s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameW"));
|
|
#else
|
|
s_pfnGetLongPathName = (GET_LONG_PATH_NAME) wxDllLoader::GetSymbol(dllKernel, _T("GetLongPathNameA"));
|
|
#endif
|
|
|
|
wxDllLoader::UnloadLibrary(dllKernel);
|
|
|
|
if ( s_pfnGetLongPathName )
|
|
{
|
|
DWORD dwSize = (*s_pfnGetLongPathName)(path, NULL, 0);
|
|
bool ok = dwSize > 0;
|
|
|
|
if ( ok )
|
|
{
|
|
DWORD sz = (*s_pfnGetLongPathName)(path, NULL, 0);
|
|
ok = sz != 0;
|
|
if ( ok )
|
|
{
|
|
ok = (*s_pfnGetLongPathName)
|
|
(
|
|
path,
|
|
pathOut.GetWriteBuf(sz),
|
|
sz
|
|
) != 0;
|
|
pathOut.UngetWriteBuf();
|
|
|
|
success = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (success)
|
|
return pathOut;
|
|
#endif // wxUSE_DYNLIB_CLASS
|
|
|
|
if (!success)
|
|
{
|
|
// The OS didn't support GetLongPathName, or some other error.
|
|
// We need to call FindFirstFile on each component in turn.
|
|
|
|
WIN32_FIND_DATA findFileData;
|
|
HANDLE hFind;
|
|
pathOut = wxEmptyString;
|
|
|
|
wxArrayString dirs = GetDirs();
|
|
dirs.Add(GetFullName());
|
|
|
|
size_t count = dirs.GetCount();
|
|
size_t i;
|
|
wxString tmpPath;
|
|
|
|
for ( i = 0; i < count; i++ )
|
|
{
|
|
// We're using pathOut to collect the long-name path,
|
|
// but using a temporary for appending the last path component which may be short-name
|
|
tmpPath = pathOut + dirs[i];
|
|
|
|
if (tmpPath.Last() == wxT(':'))
|
|
{
|
|
// Can't pass a drive and root dir to FindFirstFile,
|
|
// so continue to next dir
|
|
tmpPath += wxFILE_SEP_PATH;
|
|
pathOut = tmpPath;
|
|
continue;
|
|
}
|
|
|
|
hFind = ::FindFirstFile(tmpPath, &findFileData);
|
|
if (hFind == INVALID_HANDLE_VALUE)
|
|
{
|
|
// Error: return immediately with the original path
|
|
return path;
|
|
}
|
|
else
|
|
{
|
|
pathOut += findFileData.cFileName;
|
|
if ( (i < (count-1)) )
|
|
pathOut += wxFILE_SEP_PATH;
|
|
|
|
::FindClose(hFind);
|
|
}
|
|
}
|
|
}
|
|
|
|
return pathOut;
|
|
#else
|
|
return GetFullPath();
|
|
#endif
|
|
}
|
|
|
|
wxPathFormat wxFileName::GetFormat( wxPathFormat format )
|
|
{
|
|
if (format == wxPATH_NATIVE)
|
|
{
|
|
#if defined(__WXMSW__) || defined(__WXPM__)
|
|
format = wxPATH_DOS;
|
|
#elif defined(__WXMAC__)
|
|
format = wxPATH_MAC;
|
|
#else
|
|
format = wxPATH_UNIX;
|
|
#endif
|
|
}
|
|
return format;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// path splitting function
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void wxFileName::SplitPath(const wxString& fullpath,
|
|
wxString *pstrPath,
|
|
wxString *pstrName,
|
|
wxString *pstrExt,
|
|
wxPathFormat format)
|
|
{
|
|
format = GetFormat(format);
|
|
|
|
// find the positions of the last dot and last path separator in the path
|
|
size_t posLastDot = fullpath.find_last_of(wxFILE_SEP_EXT);
|
|
size_t posLastSlash = fullpath.find_last_of(GetPathSeparators(format));
|
|
|
|
if ( (posLastDot != wxString::npos) && (format == wxPATH_UNIX) )
|
|
{
|
|
if ( (posLastDot == 0) ||
|
|
(fullpath[posLastDot - 1] == wxFILE_SEP_PATH_UNIX) )
|
|
{
|
|
// under Unix, dot may be (and commonly is) the first character of
|
|
// the filename, don't treat the entire filename as extension in
|
|
// this case
|
|
posLastDot = wxString::npos;
|
|
}
|
|
}
|
|
|
|
// if we do have a dot and a slash, check that the dot is in the name part
|
|
if ( (posLastDot != wxString::npos) &&
|
|
(posLastSlash != wxString::npos) &&
|
|
(posLastDot < posLastSlash) )
|
|
{
|
|
// the dot is part of the path, not the start of the extension
|
|
posLastDot = wxString::npos;
|
|
}
|
|
|
|
// now fill in the variables provided by user
|
|
if ( pstrPath )
|
|
{
|
|
if ( posLastSlash == wxString::npos )
|
|
{
|
|
// no path at all
|
|
pstrPath->Empty();
|
|
}
|
|
else
|
|
{
|
|
// take all until the separator
|
|
*pstrPath = fullpath.Left(posLastSlash);
|
|
}
|
|
}
|
|
|
|
if ( pstrName )
|
|
{
|
|
// take all characters starting from the one after the last slash and
|
|
// up to, but excluding, the last dot
|
|
size_t nStart = posLastSlash == wxString::npos ? 0 : posLastSlash + 1;
|
|
size_t count;
|
|
if ( posLastDot == wxString::npos )
|
|
{
|
|
// take all until the end
|
|
count = wxString::npos;
|
|
}
|
|
else if ( posLastSlash == wxString::npos )
|
|
{
|
|
count = posLastDot;
|
|
}
|
|
else // have both dot and slash
|
|
{
|
|
count = posLastDot - posLastSlash - 1;
|
|
}
|
|
|
|
*pstrName = fullpath.Mid(nStart, count);
|
|
}
|
|
|
|
if ( pstrExt )
|
|
{
|
|
if ( posLastDot == wxString::npos )
|
|
{
|
|
// no extension
|
|
pstrExt->Empty();
|
|
}
|
|
else
|
|
{
|
|
// take everything after the dot
|
|
*pstrExt = fullpath.Mid(posLastDot + 1);
|
|
}
|
|
}
|
|
}
|