filename.h

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        // get the value of user home (Unix only mainly)
    void AssignHomeDir();
    static wxString GetHomeDir();

#if wxUSE_FILE
        // get a temp file name starting with the specified prefix and open the
        // file passed to us using this name for writing (atomically if
        // possible)
    void AssignTempFileName(const wxString& prefix, wxFile *fileTemp = NULL);
    static wxString CreateTempFileName(const wxString& prefix,
                                       wxFile *fileTemp = NULL);
#endif // wxUSE_FILE

    // directory creation and removal.
    bool Mkdir( int perm = 0777, int flags = 0);
    static bool Mkdir( const wxString &dir, int perm = 0777, int flags = 0 );

    bool Rmdir();
    static bool Rmdir( const wxString &dir );

    // operations on the path

        // normalize the path: with the default flags value, the path will be
        // made absolute, without any ".." and "." and all environment
        // variables will be expanded in it
        //
        // this may be done using another (than current) value of cwd
    bool Normalize(int flags = wxPATH_NORM_ALL,
                   const wxString& cwd = wxEmptyString,
                   wxPathFormat format = wxPATH_NATIVE);

        // get a path path relative to the given base directory, i.e. opposite
        // of Normalize
        //
        // pass an empty string to get a path relative to the working directory
        //
        // returns true if the file name was modified, false if we failed to do
        // anything with it (happens when the file is on a different volume,
        // for example)
    bool MakeRelativeTo(const wxString& pathBase = wxEmptyString,
                        wxPathFormat format = wxPATH_NATIVE);

        // make the path absolute
        //
        // this may be done using another (than current) value of cwd
    bool MakeAbsolute(const wxString& cwd = wxEmptyString,
                      wxPathFormat format = wxPATH_NATIVE)
        { return Normalize(wxPATH_NORM_DOTS | wxPATH_NORM_ABSOLUTE |
                           wxPATH_NORM_TILDE, cwd, format); }

#if defined(__WIN32__) && !defined(__WXWINCE__) && wxUSE_OLE
        // if the path is a shortcut, return the target and optionally,
        // the arguments
    bool GetShortcutTarget(const wxString& shortcutPath,
                           wxString& targetFilename,
                           wxString* arguments = NULL);
#endif

    // Comparison

        // compares with the rules of the given platforms format
    bool SameAs(const wxFileName& filepath,
                wxPathFormat format = wxPATH_NATIVE) const;

        // compare with another filename object
    bool operator==(const wxFileName& filename) const
        { return SameAs(filename); }
    bool operator!=(const wxFileName& filename) const
        { return !SameAs(filename); }

        // compare with a filename string interpreted as a native file name
    bool operator==(const wxString& filename) const
        { return SameAs(wxFileName(filename)); }
    bool operator!=(const wxString& filename) const
        { return !SameAs(wxFileName(filename)); }

        // are the file names of this type cases sensitive?
    static bool IsCaseSensitive( wxPathFormat format = wxPATH_NATIVE );

        // is this filename absolute?
    bool IsAbsolute(wxPathFormat format = wxPATH_NATIVE) const;

        // is this filename relative?
    bool IsRelative(wxPathFormat format = wxPATH_NATIVE) const
        { return !IsAbsolute(format); }

    // Returns the characters that aren't allowed in filenames
    // on the specified platform.
    static wxString GetForbiddenChars(wxPathFormat format = wxPATH_NATIVE);

    // Information about path format

    // get the string separating the volume from the path for this format,
    // return an empty string if this format doesn't support the notion of
    // volumes at all
    static wxString GetVolumeSeparator(wxPathFormat format = wxPATH_NATIVE);

    // get the string of path separators for this format
    static wxString GetPathSeparators(wxPathFormat format = wxPATH_NATIVE);

    // get the string of path terminators, i.e. characters which terminate the
    // path
    static wxString GetPathTerminators(wxPathFormat format = wxPATH_NATIVE);

    // get the canonical path separator for this format
    static wxChar GetPathSeparator(wxPathFormat format = wxPATH_NATIVE)
        { return GetPathSeparators(format)[0u]; }

    // is the char a path separator for this format?
    static bool IsPathSeparator(wxChar ch, wxPathFormat format = wxPATH_NATIVE);

    // Dir accessors
    size_t GetDirCount() const { return m_dirs.size(); }
    void AppendDir(const wxString& dir);
    void PrependDir(const wxString& dir);
    void InsertDir(size_t before, const wxString& dir);
    void RemoveDir(size_t pos);
    void RemoveLastDir() { RemoveDir(GetDirCount() - 1); }

    // Other accessors
    void SetExt( const wxString &ext )          { m_ext = ext; m_hasExt = !m_ext.empty(); }
    void ClearExt()                             { m_ext = wxEmptyString; m_hasExt = false; }
    void SetEmptyExt()                          { m_ext = wxT(""); m_hasExt = true; }
    wxString GetExt() const                     { return m_ext; }
    bool HasExt() const                         { return m_hasExt; }

    void SetName( const wxString &name )        { m_name = name; }
    wxString GetName() const                    { return m_name; }
    bool HasName() const                        { return !m_name.empty(); }

    void SetVolume( const wxString &volume )    { m_volume = volume; }
    wxString GetVolume() const                  { return m_volume; }
    bool HasVolume() const                      { return !m_volume.empty(); }

    // full name is the file name + extension (but without the path)
    void SetFullName(const wxString& fullname);
    wxString GetFullName() const;

    const wxArrayString& GetDirs() const        { return m_dirs; }

    // flags are combination of wxPATH_GET_XXX flags
    wxString GetPath(int flags = wxPATH_GET_VOLUME,
                     wxPathFormat format = wxPATH_NATIVE) const;

    // Replace current path with this one
    void SetPath( const wxString &path, wxPathFormat format = wxPATH_NATIVE );

    // Construct full path with name and ext
    wxString GetFullPath( wxPathFormat format = wxPATH_NATIVE ) const;

    // Return the short form of the path (returns identity on non-Windows platforms)
    wxString GetShortPath() const;

    // Return the long form of the path (returns identity on non-Windows platforms)
    wxString GetLongPath() const;

    // Is this a file or directory (not necessarily an existing one)
    bool IsDir() const { return m_name.empty() && m_ext.empty(); }

    // various helpers

        // get the canonical path format for this platform
    static wxPathFormat GetFormat( wxPathFormat format = wxPATH_NATIVE );

        // split a fullpath into the volume, path, (base) name and extension
        // (all of the pointers can be NULL)
    static void SplitPath(const wxString& fullpath,
                          wxString *volume,
                          wxString *path,
                          wxString *name,
                          wxString *ext,
                          bool *hasExt = NULL,
                          wxPathFormat format = wxPATH_NATIVE);

    static void SplitPath(const wxString& fullpath,
                          wxString *volume,
                          wxString *path,
                          wxString *name,
                          wxString *ext,
                          wxPathFormat format)
    {
        SplitPath(fullpath, volume, path, name, ext, NULL, format);
    }

        // compatibility version: volume is part of path
    static void SplitPath(const wxString& fullpath,
                          wxString *path,
                          wxString *name,
                          wxString *ext,
                          wxPathFormat format = wxPATH_NATIVE);

        // split a path into volume and pure path part
    static void SplitVolume(const wxString& fullpathWithVolume,
                            wxString *volume,
                            wxString *path,
                            wxPathFormat format = wxPATH_NATIVE);

    // deprecated methods, don't use any more
    // --------------------------------------

#ifndef __DIGITALMARS__
    wxString GetPath( bool withSep, wxPathFormat format = wxPATH_NATIVE ) const
        { return GetPath(withSep ? wxPATH_GET_SEPARATOR : 0, format); }
#endif
    wxString GetPathWithSep(wxPathFormat format = wxPATH_NATIVE ) const
        { return GetPath(wxPATH_GET_SEPARATOR, format); }

private:
    // check whether this dir is valid for Append/Prepend/InsertDir()
    static bool IsValidDirComponent(const wxString& dir);

    // the drive/volume/device specification (always empty for Unix)
    wxString        m_volume;

    // the path components of the file
    wxArrayString   m_dirs;

    // the file name and extension (empty for directories)
    wxString        m_name,
                    m_ext;

    // when m_dirs is empty it may mean either that we have no path at all or
    // that our path is '/', i.e. the root directory
    //
    // we use m_relative to distinguish between these two cases, it will be
    // true in the former and false in the latter
    //
    // NB: the path is not absolute just because m_relative is false, it still
    //     needs the drive (i.e. volume) in some formats (Windows)
    bool            m_relative;

    // when m_ext is empty, it may be because we don't have any extension or
    // because we have an empty extension
    //
    // the difference is important as file with name "foo" and without
    // extension has full name "foo" while with empty extension it is "foo."
    bool            m_hasExt;
};

#endif // _WX_FILENAME_H_