// Purpose: interface of wxFileName
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-/** The various values for the path format: this mainly affects the path
+/**
+ The various values for the path format: this mainly affects the path
separator but also whether or not the path has the drive part
(as under Windows).
wxPATH_MAX //!< Not a valid value for specifying path format
};
+/**
+ Different conventions for human readable sizes.
+
+ @see wxFileName::GetHumanReadableSize().
+
+ @since 2.9.1
+*/
+enum wxSizeConvention
+{
+ /// 1024 bytes = 1KB.
+ wxSIZE_CONV_TRADITIONAL,
+
+ /// 1024 bytes = 1KiB.
+ wxSIZE_CONV_IEC,
+
+ /// 1000 bytes = 1KB.
+ wxSIZE_CONV_SI
+};
+
-/** The kind of normalization to do with the file name: these values can be
+/**
+ The kind of normalization to do with the file name: these values can be
or'd together to perform several operations at once.
See wxFileName::Normalize() for more info.
*/
enum wxPathNormalize
{
- wxPATH_NORM_ENV_VARS = 0x0001, //!< replace env vars with their values.
- wxPATH_NORM_DOTS = 0x0002, //!< squeeze all .. and . and prepend cwd.
- wxPATH_NORM_TILDE = 0x0004, //!< Unix only: replace ~ and ~user.
- wxPATH_NORM_CASE = 0x0008, //!< if case insensitive => tolower.
- wxPATH_NORM_ABSOLUTE = 0x0010, //!< make the path absolute.
- wxPATH_NORM_LONG = 0x0020, //!< make the path the long form.
- wxPATH_NORM_SHORTCUT = 0x0040, //!< resolve the shortcut, if it is a shortcut.
+ //! Replace environment variables with their values.
+ //! wxFileName understands both Unix and Windows (but only under Windows) environment
+ //! variables expansion: i.e. @c "$var", @c "$(var)" and @c "${var}" are always understood
+ //! and in addition under Windows @c "%var%" is also.
+ wxPATH_NORM_ENV_VARS = 0x0001,
+
+ wxPATH_NORM_DOTS = 0x0002, //!< Squeeze all @c ".." and @c ".".
+ wxPATH_NORM_TILDE = 0x0004, //!< Replace @c "~" and @c "~user" (Unix only).
+ wxPATH_NORM_CASE = 0x0008, //!< If the platform is case insensitive, make lowercase the path.
+ wxPATH_NORM_ABSOLUTE = 0x0010, //!< Make the path absolute.
+ wxPATH_NORM_LONG = 0x0020, //!< Expand the path to the "long" form (Windows only).
+ wxPATH_NORM_SHORTCUT = 0x0040, //!< Resolve the shortcut, if it is a shortcut (Windows only).
+
+ //! A value indicating all normalization flags except for @c wxPATH_NORM_CASE.
wxPATH_NORM_ALL = 0x00ff & ~wxPATH_NORM_CASE
};
+/**
+ Flags for wxFileName::Rmdir().
+ */
+enum
+{
+ /// Delete the specified directory and its subdirectories if they are empty.
+ wxPATH_RMDIR_FULL = 1,
+
+ /**
+ Delete the specified directory and all the files and subdirectories in it
+ recursively.
+
+ This flag is obviously @b dangerous and should be used with care and
+ after asking the user for confirmation.
+ */
+ wxPATH_RMDIR_RECURSIVE = 2
+};
+
+/**
+ Flags for wxFileName::Exists().
+
+ @since 2.9.5
+ */
+enum
+{
+ wxFILE_EXISTS_REGULAR = 0x0001, //!< Check for existence of a regular file
+ wxFILE_EXISTS_DIR = 0x0002, //!< Check for existence of a directory
+ /**
+ Check for existence of a symlink.
+
+ Notice that this flag also sets ::wxFILE_EXISTS_NO_FOLLOW, otherwise it
+ would never be satisfied as wxFileName::Exists() would be checking for
+ the existence of the symlink target and not the symlink itself.
+ */
+ wxFILE_EXISTS_SYMLINK = 0x1004,
+ wxFILE_EXISTS_DEVICE = 0x0008, //!< Check for existence of a device
+ wxFILE_EXISTS_FIFO = 0x0016, //!< Check for existence of a FIFO
+ wxFILE_EXISTS_SOCKET = 0x0032, //!< Check for existence of a socket
+ wxFILE_EXISTS_NO_FOLLOW = 0x1000 //!< Don't dereference a contained symbolic link
+ wxFILE_EXISTS_ANY = 0x1FFF, //!< Check for existence of anything
+};
+
/**
The return value of wxFileName::GetSize() in case of error.
*/
wxFileName::IsDirReadable() use wxFileName::GetPath() whereas methods dealing
with file names like wxFileName::IsFileReadable() use wxFileName::GetFullPath().
- If it is not known wether a string contains a directory name or a complete
+ If it is not known whether a string contains a directory name or a complete
file name (such as when interpreting user input) you need to use the static
function wxFileName::DirExists() (or its identical variants wxDir::Exists() and
wxDirExists()) and construct the wxFileName instance accordingly.
@li wxFileName::AssignCwd()
@li wxFileName::AssignDir()
@li wxFileName::AssignHomeDir()
+ @li wxFileName::AssignTempFileName()
@li wxFileName::DirName()
@li wxFileName::FileName()
@li wxFileName::operator=()
wxPathFormat format = wxPATH_NATIVE);
/**
- Appends a directory component to the path. This component should contain a
- single directory name level, i.e. not contain any path or volume separators nor
- should it be empty, otherwise the function does nothing (and generates an
- assert failure in debug build).
+ Appends a directory component to the path.
+
+ This component should contain a single directory name level, i.e. not
+ contain any path or volume separators nor should it be empty, otherwise
+ the function does nothing and returns false (and generates an assert
+ failure in debug build).
+
+ Notice that the return value is only available in wxWidgets 2.9.5 or
+ later.
*/
- void AppendDir(const wxString& dir);
+ bool AppendDir(const wxString& dir);
/**
Creates the file name from another filename object.
wxPathFormat format = wxPATH_NATIVE);
/**
- Creates the file name from volumne, path, name and extension.
+ Creates the file name from volume, path, name and extension.
*/
void Assign(const wxString& volume, const wxString& path,
const wxString& name,
wxPathFormat format = wxPATH_NATIVE);
/**
- Creates the file name from volumne, path, name and extension.
+ Creates the file name from volume, path, name and extension.
*/
void Assign(const wxString& volume, const wxString& path,
const wxString& name,
@see GetCwd()
*/
- static void AssignCwd(const wxString& volume = wxEmptyString);
+ void AssignCwd(const wxString& volume = wxEmptyString);
/**
Sets this file name object to the given directory name.
*/
void AssignHomeDir();
- //@{
/**
The function calls CreateTempFileName() to create a temporary file
and sets this object to the name of the file.
If a temporary file couldn't be created, the object is put into
- an invalid state (see IsOk())
+ an invalid state (see IsOk()).
+ */
+ void AssignTempFileName(const wxString& prefix);
+
+ /**
+ The function calls CreateTempFileName() to create a temporary
+ file name and open @a fileTemp with it.
+
+ If the file couldn't be opened, the object is put into
+ an invalid state (see IsOk()).
*/
void AssignTempFileName(const wxString& prefix, wxFile* fileTemp);
+
+ /**
+ The function calls CreateTempFileName() to create a temporary
+ file name and open @a fileTemp with it.
+
+ If the file couldn't be opened, the object is put into
+ an invalid state (see IsOk()).
+ */
void AssignTempFileName(const wxString& prefix, wxFFile* fileTemp);
- //@}
/**
Reset all components to default, uninitialized state.
*/
void ClearExt();
+
/**
Returns a temporary file name starting with the given @e prefix.
- If the @a prefix is an absolute path, the temporary file is created in this
- directory, otherwise it is created in the default system directory for the
- temporary files or in the current directory.
+ If @a prefix is an absolute path and ends in a separator, the
+ temporary file is created in this directory; if it is an absolute
+ filepath or there is no separator, the temporary file is created in its
+ path, with the 'name' segment prepended to the temporary filename;
+ otherwise it is created in the default system directory for temporary
+ files or in the current directory.
If the function succeeds, the temporary file is actually created.
- If @a fileTemp is not @NULL, this file will be opened using the name of
- the temporary file. When possible, this is done in an atomic way ensuring that
- no race condition occurs between the temporary file name generation and opening
- it which could often lead to security compromise on the multiuser systems.
- If @a fileTemp is @NULL, the file is only created, but not opened.
+ If @a fileTemp is not @NULL, this wxFile will be opened using the name of
+ the temporary file. Where possible this is done in an atomic way to ensure that
+ no race condition occurs between creating the temporary file name and opening
+ it, which might lead to a security compromise on multiuser systems.
+ If @a fileTemp is @NULL, the file is created but not opened.
Under Unix, the temporary file will have read and write permissions for the
- owner only to minimize the security problems.
+ owner only, to minimize security problems.
@param prefix
- Prefix to use for the temporary file name construction
+ Location to use for the temporary file name construction. If @a prefix
+ is a directory it must have a terminal separator
@param fileTemp
- The file to open or @NULL to just get the name
+ The file to open, or @NULL just to get the name
- @return The full temporary file name or an empty string on error.
+ @return The full temporary filepath, or an empty string on error.
*/
static wxString CreateTempFileName(const wxString& prefix,
wxFile* fileTemp = NULL);
+ /**
+ This is the same as CreateTempFileName(const wxString &prefix, wxFile *fileTemp)
+ but takes a wxFFile parameter instead of wxFile.
+ */
+ static wxString CreateTempFileName(const wxString& prefix,
+ wxFFile* fileTemp = NULL);
+
+
/**
Returns @true if the directory with this name exists.
+
+ Notice that this function tests the directory part of this object,
+ i.e. the string returned by GetPath(), and not the full path returned
+ by GetFullPath().
+
+ @see FileExists(), Exists()
*/
bool DirExists() const;
/**
- Returns @true if the directory with this name exists.
+ Returns @true if the directory with name @a dir exists.
+
+ @see FileExists(), Exists()
*/
static bool DirExists(const wxString& dir);
static wxFileName DirName(const wxString& dir,
wxPathFormat format = wxPATH_NATIVE);
+ /**
+ Turns off symlink dereferencing.
+
+ By default, all operations in this class work on the target of a
+ symbolic link (symlink) if the path of the file is actually a symlink.
+ Using this method allows to turn off this "symlink following" behaviour
+ and apply the operations to this path itself, even if it is a symlink.
+
+ The following methods are currently affected by this option:
+ - GetTimes() (but not SetTimes() as there is no portable way to
+ change the time of symlink itself).
+ - Existence checks: FileExists(), DirExists() and Exists() (notice
+ that static versions of these methods always follow symlinks).
+ - IsSameAs().
+
+ @see ShouldFollowLink()
+
+ @since 2.9.5
+ */
+ void DontFollowLink();
+
+ /**
+ Calls the static overload of this function with the full path of this
+ object.
+
+ @since 2.9.4 (@a flags is new since 2.9.5)
+ */
+ bool Exists(int flags = wxFILE_EXISTS_ANY) const;
+
+ /**
+ Returns @true if either a file or a directory or something else with
+ this name exists in the file system.
+
+ Don't dereference @a path if it is a symbolic link and @a flags
+ argument contains ::wxFILE_EXISTS_NO_FOLLOW.
+
+ This method is equivalent to @code FileExists() || DirExists() @endcode
+ under Windows, but under Unix it also returns true if the file
+ identifies a special file system object such as a device, a socket or a
+ FIFO.
+
+ Alternatively you may check for the existence of a file system entry of
+ a specific type by passing the appropriate @a flags (this parameter is
+ new since wxWidgets 2.9.5). E.g. to test for a symbolic link existence
+ you could use ::wxFILE_EXISTS_SYMLINK.
+
+ @since 2.9.4
+
+ @see FileExists(), DirExists()
+ */
+ static bool Exists(const wxString& path, int flags = wxFILE_EXISTS_ANY);
+
/**
Returns @true if the file with this name exists.
- @see DirExists()
+ @see DirExists(), Exists()
*/
bool FileExists() const;
/**
- Returns @true if the file with this name exists.
+ Returns @true if the file with name @a file exists.
- @see DirExists()
+ @see DirExists(), Exists()
*/
static bool FileExists(const wxString& file);
*/
static wxString GetHomeDir();
+ //@{
/**
- Returns the size of the file in a human-readable form.
-
- If the size could not be retrieved the @c failmsg string
- is returned. In case of success, the returned string is
- a floating-point number with @c precision decimal digits
- followed by the size unit (B, kB, MB, GB, TB: respectively
- bytes, kilobytes, megabytes, gigabytes, terabytes).
- */
- wxString GetHumanReadableSize(const wxString& failmsg = "Not available",
- int precision = 1) const;
-
- /**
- Returns the size of the given number of bytes in a human-readable form.
-
- If @a bytes is ::wxInvalidSize or zero, then @a nullsize is returned.
-
- In case of success, the returned string is a floating-point number with
- @a precision decimal digits followed by the size unit (B, kB, MB, GB,
- TB: respectively bytes, kilobytes, megabytes, gigabytes, terabytes).
- */
- static wxString GetHumanReadableSize(const wxULongLong& bytes,
- const wxString& nullsize = "Not available",
- int precision = 1);
+ Returns the representation of the file size in a human-readable form.
+
+ In the first version, the size of this file is used. In the second one,
+ the specified size @a bytes is used.
+
+ If the file size could not be retrieved or @a bytes is ::wxInvalidSize
+ or zero, the @c failmsg string is returned.
+
+ Otherwise the returned string is a floating-point number with @c
+ precision decimal digits followed by the abbreviation of the unit used.
+ By default the traditional, although incorrect, convention of using SI
+ units for multiples of 1024 is used, i.e. returned string will use
+ suffixes of B, KB, MB, GB, TB for bytes, kilobytes, megabytes,
+ gigabytes and terabytes respectively. With the IEC convention the names
+ of the units are changed to B, KiB, MiB, GiB and TiB for bytes,
+ kibibytes, mebibytes, gibibytes and tebibytes. Finally, with SI
+ convention the same B, KB, MB, GB and TB suffixes are used but in their
+ correct SI meaning, i.e. as multiples of 1000 and not 1024.
+
+ Support for the different size conventions is new in wxWidgets 2.9.1,
+ in previous versions only the traditional convention was implemented.
+ */
+ wxString
+ GetHumanReadableSize(const wxString& failmsg = _("Not available"),
+ int precision = 1,
+ wxSizeConvention conv = wxSIZE_CONV_TRADITIONAL) const;
+
+ static wxString
+ GetHumanReadableSize(const wxULongLong& bytes,
+ const wxString& nullsize = _("Not available"),
+ int precision = 1,
+ wxSizeConvention conv = wxSIZE_CONV_TRADITIONAL);
+ //@}
/**
Return the long form of the path (returns identity on non-Windows platforms).
The possible flags values are:
- - @b wxPATH_GET_VOLUME
+ - @b wxPATH_GET_VOLUME:
Return the path with the volume (does nothing for the filename formats
without volumes), otherwise the path without volume part is returned.
Don't include the trailing separator in the returned string. This is
the default (the value of this flag is 0) and exists only for symmetry
with wxPATH_GET_SEPARATOR.
+
+ @note If the path is a toplevel one (e.g. @c "/" on Unix or @c "C:\" on
+ Windows), then the returned path will contain trailing separator
+ even with @c wxPATH_NO_SEPARATOR.
*/
wxString GetPath(int flags = wxPATH_GET_VOLUME,
wxPathFormat format = wxPATH_NATIVE) const;
not be read (because e.g. the file is locked by another process) the returned
value is ::wxInvalidSize.
*/
- const static wxULongLong GetSize(const wxString& filename);
+ static wxULongLong GetSize(const wxString& filename);
/**
Returns the directory used for temporary files.
bool HasVolume() const;
/**
- Inserts a directory component before the zero-based position in the directory
- list. Please see AppendDir() for important notes.
+ Inserts a directory component before the zero-based position in the
+ directory list.
+
+ As with AppendDir(), @a dir must be a single directory name and the
+ function returns @false and does nothing else if it isn't.
+
+ Notice that the return value is only available in wxWidgets 2.9.5 or
+ later.
*/
- void InsertDir(size_t before, const wxString& dir);
+ bool InsertDir(size_t before, const wxString& dir);
/**
Returns @true if this filename is absolute.
static bool IsPathSeparator(wxChar ch,
wxPathFormat format = wxPATH_NATIVE);
+ /**
+ Returns @true if the volume part of the path is a unique volume name.
+
+ This function will always return @false if the path format is not
+ wxPATH_DOS.
+
+ Unique volume names are Windows volume identifiers which remain the same
+ regardless of where the volume is actually mounted. Example of a path
+ using a volume name could be
+ @code
+ \\?\Volume{8089d7d7-d0ac-11db-9dd0-806d6172696f}\Program Files\setup.exe
+ @endcode
+
+ @since 2.9.1
+ */
+ static bool IsMSWUniqueVolumeNamePath(const wxString& path,
+ wxPathFormat format = wxPATH_NATIVE);
+
/**
Returns @true if this filename is not absolute.
*/
/**
On Mac OS, gets the common type and creator for the given extension.
+
+ @onlyfor{wxosx}
*/
static bool MacFindDefaultTypeAndCreator(const wxString& ext,
wxUint32* type,
/**
On Mac OS, registers application defined extensions and their default type
and creator.
+
+ @onlyfor{wxosx}
*/
static void MacRegisterDefaultTypeAndCreator(const wxString& ext,
wxUint32 type,
/**
On Mac OS, looks up the appropriate type and creator from the registration
and then sets it.
+
+ @onlyfor{wxosx}
*/
bool MacSetDefaultTypeAndCreator();
@return Returns @true if the directory was successfully created, @false
otherwise.
*/
- bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0);
+ bool Mkdir(int perm = wxS_DIR_DEFAULT, int flags = 0) const;
/**
Creates a directory.
int flags = 0);
/**
- 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.
+ 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.
+
+ Notice that in some rare cases normalizing a valid path may result in
+ an invalid wxFileName object. E.g. normalizing "./" path using
+ wxPATH_NORM_DOTS but not wxPATH_NORM_ABSOLUTE will result in a
+ completely empty and thus invalid object. As long as there is a non
+ empty file name the result of normalization will be valid however.
@param flags
The kind of normalization to do with the file name. It can be
- any or-combination of the wxPathNormalize enumeration values.
+ any or-combination of the ::wxPathNormalize enumeration values.
@param cwd
If not empty, this directory will be used instead of current
working directory in normalization (see @c wxPATH_NORM_ABSOLUTE).
*/
void RemoveLastDir();
+ /**
+ If the path contains the value of the environment variable named @a envname
+ then this function replaces it with the string obtained from
+ wxString::Format(replacementFmtString, value_of_envname_variable).
+
+ This function is useful to make the path shorter or to make it dependent
+ from a certain environment variable.
+ Normalize() with @c wxPATH_NORM_ENV_VARS can perform the opposite of this
+ function (depending on the value of @a replacementFmtString).
+
+ The name and extension of this filename are not modified.
+
+ Example:
+ @code
+ wxFileName fn("/usr/openwin/lib/someFile");
+ fn.ReplaceEnvVariable("OPENWINHOME");
+ // now fn.GetFullPath() == "$OPENWINHOME/lib/someFile"
+ @endcode
+
+ @since 2.9.0
+
+ @return @true if the operation was successful (which doesn't mean
+ that something was actually replaced, just that ::wxGetEnv
+ didn't fail).
+ */
+ bool ReplaceEnvVariable(const wxString& envname,
+ const wxString& replacementFmtString = "$%s",
+ wxPathFormat format = wxPATH_NATIVE);
+
+ /**
+ Replaces, if present in the path, the home directory for the given user
+ (see ::wxGetHomeDir) with a tilde (~).
+
+ Normalize() with @c wxPATH_NORM_TILDE performs the opposite of this
+ function.
+
+ The name and extension of this filename are not modified.
+
+ @since 2.9.0
+
+ @return @true if the operation was successful (which doesn't mean
+ that something was actually replaced, just that ::wxGetHomeDir
+ didn't fail).
+ */
+ bool ReplaceHomeDir(wxPathFormat format = wxPATH_NATIVE);
+
+
/**
Deletes the specified directory from the file system.
+
+ @param flags
+ Can contain one of wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE. By
+ default contains neither so the directory will not be removed
+ unless it is empty.
+
+ @return Returns @true if the directory was successfully deleted, @false
+ otherwise.
*/
- bool Rmdir();
+ bool Rmdir(int flags = 0) const;
/**
Deletes the specified directory from the file system.
+
+ @param dir
+ The directory to delete
+ @param flags
+ Can contain one of wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE. By
+ default contains neither so the directory will not be removed
+ unless it is empty.
+
+ @return Returns @true if the directory was successfully deleted, @false
+ otherwise.
*/
- static bool Rmdir(const wxString& dir);
+ static bool Rmdir(const wxString& dir, int flags = 0);
/**
Compares the filename using the rules of this platform.
/**
Changes the current working directory.
*/
- bool SetCwd();
+ bool SetCwd() const;
/**
Changes the current working directory.
*/
void SetName(const wxString& name);
+ /**
+ Sets the path.
+
+ The @a path argument includes both the path and the volume, if
+ supported by @a format.
+
+ Calling this function doesn't affect the name and extension components,
+ to change them as well you can use Assign() or just an assignment
+ operator.
+
+ @see GetPath()
+ */
+ void SetPath(const wxString& path, wxPathFormat format = wxPATH_NATIVE);
+
/**
Sets the file creation and last access/modification times (any of the pointers
may be @NULL).
*/
bool SetTimes(const wxDateTime* dtAccess,
const wxDateTime* dtMod,
- const wxDateTime* dtCreate);
+ const wxDateTime* dtCreate) const;
/**
Sets the volume specifier.
*/
void SetVolume(const wxString& volume);
+ /**
+ Return whether some operations will follow symlink.
+
+ By default, file operations "follow symlink", i.e. operate on its
+ target and not on the symlink itself. See DontFollowLink() for more
+ information.
+
+ @since 2.9.5
+ */
+ bool ShouldFollowLink() const;
+
//@{
/**
This function splits a full file name into components: the volume (with the
trailing dot, but empty. If you need to cope with such cases, you should use
@a hasExt instead of relying on testing whether @a ext is empty or not.
*/
- static void SplitPath(const wxString& fullpath, wxString* volume,
+ static void SplitPath(const wxString& fullpath,
+ wxString* volume,
wxString* path,
wxString* name,
wxString* ext,
- bool hasExt = NULL,
+ bool* hasExt = NULL,
wxPathFormat format = wxPATH_NATIVE);
static void SplitPath(const wxString& fullpath,
wxString* volume,
wxString* path,
wxString* name,
wxString* ext,
- wxPathFormat format = wxPATH_NATIVE);
+ wxPathFormat format);
static void SplitPath(const wxString& fullpath,
wxString* path,
wxString* name,
wxString* path,
wxPathFormat format = wxPATH_NATIVE);
+
+ /**
+ Strip the file extension.
+
+ This function does more than just removing everything after the last
+ period from the string, for example it will return the string ".vimrc"
+ unchanged because the part after the period is not an extension but the
+ file name in this case. You can use wxString::BeforeLast() to really
+ get just the part before the last period (but notice that that function
+ returns empty string if period is not present at all unlike this
+ function which returns the @a fullname unchanged in this case).
+
+ @param fullname
+ File path including name and, optionally, extension.
+
+ @return
+ File path without extension
+
+ @since 2.9.0
+ */
+ static wxString StripExtension(const wxString& fullname);
+
/**
Sets the access and modification times to the current moment.
*/
- bool Touch();
+ bool Touch() const;
/**
Returns @true if the filenames are different. The string @e filenames
*/
wxFileName& operator=(const wxString& filename);
};
-
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