package File::Spec;
use strict;
-use vars qw(@ISA $VERSION);
+our(@ISA, $VERSION);
-$VERSION = 0.82 ;
+$VERSION = 0.83 ;
my %module = (MacOS => 'Mac',
MSWin32 => 'Win32',
os2 => 'OS2',
- VMS => 'VMS');
+ VMS => 'VMS',
+ epoc => 'Epoc');
my $module = $module{$^O} || 'Unix';
require "File/Spec/$module.pm";
@ISA = ("File::Spec::$module");
1;
+
__END__
=head1 NAME
For simple uses, L<File::Spec::Functions> provides convenient functional
forms of these methods.
-For a list of available methods, please consult L<File::Spec::Unix>,
-which contains the entire set, and which is inherited by the modules for
-other platforms. For further information, please see L<File::Spec::Mac>,
-L<File::Spec::OS2>, L<File::Spec::Win32>, or L<File::Spec::VMS>.
+=head1 METHODS
+
+=over 2
+
+=item canonpath
+
+No physical check on the filesystem, but a logical cleanup of a
+path.
+
+ $cpath = File::Spec->canonpath( $path ) ;
+
+=item catdir
+
+Concatenate two or more directory names to form a complete path ending
+with a directory. But remove the trailing slash from the resulting
+string, because it doesn't look good, isn't necessary and confuses
+OS2. Of course, if this is the root directory, don't cut off the
+trailing slash :-)
+
+ $path = File::Spec->catdir( @directories );
+
+=item catfile
+
+Concatenate one or more directory names and a filename to form a
+complete path ending with a filename
+
+ $path = File::Spec->catfile( @directories, $filename );
+
+=item curdir
+
+Returns a string representation of the current directory.
+
+ $curdir = File::Spec->curdir();
+
+=item devnull
+
+Returns a string representation of the null device.
+
+ $devnull = File::Spec->devnull();
+
+=item rootdir
+
+Returns a string representation of the root directory.
+
+ $rootdir = File::Spec->rootdir();
+
+=item tmpdir
+
+Returns a string representation of the first writable directory from a
+list of possible temporary directories. Returns "" if no writable
+temporary directories are found. The list of directories checked
+depends on the platform; e.g. File::Spec::Unix checks $ENV{TMPDIR} and
+/tmp.
+
+ $tmpdir = File::Spec->tmpdir();
+
+=item updir
+
+Returns a string representation of the parent directory.
+
+ $updir = File::Spec->updir();
+
+=item no_upwards
+
+Given a list of file names, strip out those that refer to a parent
+directory. (Does not strip symlinks, only '.', '..', and equivalents.)
+
+ @paths = File::Spec->no_upwards( @paths );
+
+=item case_tolerant
+
+Returns a true or false value indicating, respectively, that alphabetic
+is not or is significant when comparing file specifications.
+
+ $is_case_tolerant = File::Spec->case_tolerant();
+
+=item file_name_is_absolute
+
+Takes as argument a path and returns true if it is an absolute path.
+
+ $is_absolute = File::Spec->file_name_is_absolute( $path );
+
+This does not consult the local filesystem on Unix, Win32, or OS/2. It
+does sometimes on MacOS (see L<File::Spec::MacOS/file_name_is_absolute>).
+It does consult the working environment for VMS (see
+L<File::Spec::VMS/file_name_is_absolute>).
+
+=item path
+
+Takes no argument, returns the environment variable PATH as an array.
+
+ @PATH = File::Spec->path();
+
+=item join
+
+join is the same as catfile.
+
+=item splitpath
+
+Splits a path in to volume, directory, and filename portions. On systems
+with no concept of volume, returns undef for volume.
+
+ ($volume,$directories,$file) = File::Spec->splitpath( $path );
+ ($volume,$directories,$file) = File::Spec->splitpath( $path, $no_file );
+
+For systems with no syntax differentiating filenames from directories,
+assumes that the last file is a path unless $no_file is true or a
+trailing separator or /. or /.. is present. On Unix this means that $no_file
+true makes this return ( '', $path, '' ).
+
+The directory portion may or may not be returned with a trailing '/'.
+
+The results can be passed to L</catpath()> to get back a path equivalent to
+(usually identical to) the original path.
+
+=item splitdir
+
+The opposite of L</catdir()>.
+
+ @dirs = File::Spec->splitdir( $directories );
+
+$directories must be only the directory portion of the path on systems
+that have the concept of a volume or that have path syntax that differentiates
+files from directories.
+
+Unlike just splitting the directories on the separator, empty
+directory names (C<''>) can be returned, because these are significant
+on some OSs (e.g. MacOS).
+
+=item catpath
+
+Takes volume, directory and file portions and returns an entire path. Under
+Unix, $volume is ignored, and directory and file are catenated. A '/' is
+inserted if need be. On other OSs, $volume is significant.
+
+ $full_path = File::Spec->catpath( $volume, $directory, $file );
+
+=item abs2rel
+
+Takes a destination path and an optional base path returns a relative path
+from the base path to the destination path:
+
+ $rel_path = File::Spec->abs2rel( $path ) ;
+ $rel_path = File::Spec->abs2rel( $path, $base ) ;
+
+If $base is not present or '', then L<cwd()> is used. If $base is relative,
+then it is converted to absolute form using L</rel2abs()>. This means that it
+is taken to be relative to L<cwd()>.
+
+On systems with the concept of a volume, this assumes that both paths
+are on the $destination volume, and ignores the $base volume.
+
+On systems that have a grammar that indicates filenames, this ignores the
+$base filename as well. Otherwise all path components are assumed to be
+directories.
+
+If $path is relative, it is converted to absolute form using L</rel2abs()>.
+This means that it is taken to be relative to L<cwd()>.
+
+No checks against the filesystem are made on most systems. On MacOS,
+the filesystem may be consulted (see
+L<File::Spec::MacOS/file_name_is_absolute>). On VMS, there is
+interaction with the working environment, as logicals and
+macros are expanded.
+
+Based on code written by Shigio Yamaguchi.
+
+=item rel2abs
+
+Converts a relative path to an absolute path.
+
+ $abs_path = File::Spec->rel2abs( $path ) ;
+ $abs_path = File::Spec->rel2abs( $path, $base ) ;
+
+If $base is not present or '', then L<cwd()> is used. If $base is relative,
+then it is converted to absolute form using L</rel2abs()>. This means that it
+is taken to be relative to L<cwd()>.
+
+On systems with the concept of a volume, this assumes that both paths
+are on the $base volume, and ignores the $path volume.
+
+On systems that have a grammar that indicates filenames, this ignores the
+$base filename as well. Otherwise all path components are assumed to be
+directories.
+
+If $path is absolute, it is cleaned up and returned using L</canonpath()>.
+
+No checks against the filesystem are made on most systems. On MacOS,
+the filesystem may be consulted (see
+L<File::Spec::MacOS/file_name_is_absolute>). On VMS, there is
+interaction with the working environment, as logicals and
+macros are expanded.
+
+Based on code written by Shigio Yamaguchi.
+
+=back
+
+For further information, please see L<File::Spec::Unix>,
+L<File::Spec::Mac>, L<File::Spec::OS2>, L<File::Spec::Win32>, or
+L<File::Spec::VMS>.
=head1 SEE ALSO
-File::Spec::Unix, File::Spec::Mac, File::Spec::OS2, File::Spec::Win32,
-File::Spec::VMS, File::Spec::Functions, ExtUtils::MakeMaker
+L<File::Spec::Unix>, L<File::Spec::Mac>, L<File::Spec::OS2>,
+L<File::Spec::Win32>, L<File::Spec::VMS>, L<File::Spec::Functions>,
+L<ExtUtils::MakeMaker>
=head1 AUTHORS
-Kenneth Albanowski <F<kjahds@kjahds.com>>, Andy Dougherty
-<F<doughera@lafcol.lafayette.edu>>, Andreas KE<ouml>nig
-<F<A.Koenig@franz.ww.TU-Berlin.DE>>, Tim Bunce <F<Tim.Bunce@ig.co.uk>>. VMS
-support by Charles Bailey <F<bailey@newman.upenn.edu>>. OS/2 support by
-Ilya Zakharevich <F<ilya@math.ohio-state.edu>>. Mac support by Paul Schinder
-<F<schinder@pobox.com>>. abs2rel() and rel2abs() written by
-Shigio Yamaguchi <F<shigio@tamacom.com>>, modified by Barrie Slaymaker
-<F<barries@slaysys.com>>. splitpath(), splitdir(), catpath() and catdir()
+Kenneth Albanowski <kjahds@kjahds.com>, Andy Dougherty
+<doughera@lafcol.lafayette.edu>, Andreas KE<ouml>nig
+<A.Koenig@franz.ww.TU-Berlin.DE>, Tim Bunce <Tim.Bunce@ig.co.uk. VMS
+support by Charles Bailey <bailey@newman.upenn.edu>. OS/2 support by
+Ilya Zakharevich <ilya@math.ohio-state.edu>. Mac support by Paul Schinder
+<schinder@pobox.com>. abs2rel() and rel2abs() written by
+Shigio Yamaguchi <shigio@tamacom.com>, modified by Barrie Slaymaker
+<barries@slaysys.com>. splitpath(), splitdir(), catpath() and catdir()
by Barrie Slaymaker.
projects / p5sagit/p5-mst-13.2.git / blobdiff