+++ /dev/null
-package File::Spec::NW5;
-
-
-use Cwd;
-use vars qw(@ISA $VERSION);
-require File::Spec::Unix;
-
-$VERSION = '1.3';
-
-@ISA = qw(File::Spec::Unix);
-
-=head1 NAME
-
-File::Spec::NW5 - methods for NW5 file specs
-
-=head1 SYNOPSIS
-
- require File::Spec::NW5; # Done internally by File::Spec if needed
-
-=head1 DESCRIPTION
-
-See File::Spec::Unix for a documentation of the methods provided
-there. This package overrides the implementation of these methods, not
-the semantics.
-
-=over 4
-
-=item devnull
-
-Returns a string representation of the null device.
-
-=cut
-
-sub devnull {
- return "nul";
-}
-
-=item tmpdir
-
-Returns a string representation of the first existing directory
-from the following list:
-
- $ENV{TMPDIR}
- $ENV{TEMP}
- $ENV{TMP}
- SYS:/temp
- /tmp
- /
-
-Since perl 5.8.0, if running under taint mode, and if the environment
-variables are tainted, they are not used.
-
-=cut
-
-my $tmpdir;
-sub tmpdir {
- return $tmpdir if defined $tmpdir;
- my $self = shift;
- my @dirlist = (@ENV{qw(TMPDIR TEMP TMP)}, qw(SYS:/temp /tmp /));
- {
- no strict 'refs';
- if (${"\cTAINT"}) { # Check for taint mode on perl >= 5.8.0
- require Scalar::Util;
- @dirlist = grep { ! Scalar::Util::tainted $_ } @dirlist;
- }
- }
- foreach (@dirlist) {
- next unless defined && -d;
- $tmpdir = $_;
- last;
- }
- $tmpdir = '' unless defined $tmpdir;
- $tmpdir = $self->canonpath($tmpdir);
- return $tmpdir;
-}
-
-sub case_tolerant {
- return 1;
-}
-
-sub file_name_is_absolute {
- my ($self,$file) = @_;
- return scalar($file =~ m{^([a-z]:)?[\\/]}is);
-}
-
-=item catfile
-
-Concatenate one or more directory names and a filename to form a
-complete path ending with a filename
-
-=cut
-
-sub catfile {
- my $self = shift;
- my $file = pop @_;
- return $file unless @_;
- my $dir = $self->catdir(@_);
- $dir .= "\\" unless substr($dir,-1) eq "\\";
- return $dir.$file;
-}
-
-sub path {
- my $path = $ENV{'PATH'} || $ENV{'Path'} || $ENV{'path'};
- my @path = split(';',$path);
- foreach (@path) { $_ = '.' if $_ eq '' }
- return @path;
-}
-
-=item canonpath
-
-No physical check on the filesystem, but a logical cleanup of a
-path. On UNIX eliminated successive slashes and successive "/.".
-
-=cut
-
-sub canonpath {
- my ($self,$path) = @_;
- $path =~ s/^([a-z]:)/\u$1/s;
- $path =~ s|/|\\|g;
- $path =~ s|([^\\])\\+|$1\\|g; # xx\\\\xx -> xx\xx
- $path =~ s|(\\\.)+\\|\\|g; # xx\.\.\xx -> xx\xx
- $path =~ s|^(\.\\)+||s unless $path eq ".\\"; # .\xx -> xx
- $path =~ s|\\\Z(?!\n)||
- unless $path =~ m#^([A-Z]:)?\\\Z(?!\n)#s; # xx\ -> xx
- return $path;
-}
-
-=item splitpath
-
- ($volume,$directories,$file) = File::Spec->splitpath( $path );
- ($volume,$directories,$file) = File::Spec->splitpath( $path, $no_file );
-
-Splits a path in to volume, directory, and filename portions. Assumes that
-the last file is a path unless the path ends in '\\', '\\.', '\\..'
-or $no_file is true. On NW5 this means that $no_file true makes this return
-( $volume, $path, undef ).
-
-Separators accepted are \ and /.
-
-Volumes can be drive letters or UNC sharenames (\\server\share).
-
-The results can be passed to L</catpath> to get back a path equivalent to
-(usually identical to) the original path.
-
-=cut
-
-sub splitpath {
- my ($self,$path, $nofile) = @_;
- my ($volume,$directory,$file) = ('','','');
- if ( $nofile ) {
- $path =~
- m{^( (?:[a-zA-Z]:|(?:\\\\|//)[^\\/]+[\\/][^\\/]+)? )
- (.*)
- }xs;
- $volume = $1;
- $directory = $2;
- }
- else {
- $path =~
- m{^ ( (?: [a-zA-Z]: |
- (?:\\\\|//)[^\\/]+[\\/][^\\/]+
- )?
- )
- ( (?:.*[\\\\/](?:\.\.?\Z(?!\n))?)? )
- (.*)
- }xs;
- $volume = $1;
- $directory = $2;
- $file = $3;
- }
-
- return ($volume,$directory,$file);
-}
-
-
-=item splitdir
-
-The opposite of L<catdir()|File::Spec/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, leading empty and
-trailing directory entries can be returned, because these are significant
-on some OSs. So,
-
- File::Spec->splitdir( "/a/b/c" );
-
-Yields:
-
- ( '', 'a', 'b', '', 'c', '' )
-
-=cut
-
-sub splitdir {
- my ($self,$directories) = @_ ;
- #
- # split() likes to forget about trailing null fields, so here we
- # check to be sure that there will not be any before handling the
- # simple case.
- #
- if ( $directories !~ m|[\\/]\Z(?!\n)| ) {
- return split( m|[\\/]|, $directories );
- }
- else {
- #
- # since there was a trailing separator, add a file name to the end,
- # then do the split, then replace it with ''.
- #
- my( @directories )= split( m|[\\/]|, "${directories}dummy" ) ;
- $directories[ $#directories ]= '' ;
- return @directories ;
- }
-}
-
-
-=item catpath
-
-Takes volume, directory and file portions and returns an entire path. Under
-Unix, $volume is ignored, and this is just like catfile(). On other OSs,
-the $volume become significant.
-
-=cut
-
-sub catpath {
- my ($self,$volume,$directory,$file) = @_;
-
- # If it's UNC, make sure the glue separator is there, reusing
- # whatever separator is first in the $volume
- $volume .= $1
- if ( $volume =~ m@^([\\/])[\\/][^\\/]+[\\/][^\\/]+\Z(?!\n)@s &&
- $directory =~ m@^[^\\/]@s
- ) ;
-
- $volume .= $directory ;
-
- # If the volume is not just A:, make sure the glue separator is
- # there, reusing whatever separator is first in the $volume if possible.
- if ( $volume !~ m@^[a-zA-Z]:\Z(?!\n)@s &&
- $volume =~ m@[^\\/]\Z(?!\n)@ &&
- $file =~ m@[^\\/]@
- ) {
- $volume =~ m@([\\/])@ ;
- my $sep = $1 ? $1 : '\\' ;
- $volume .= $sep ;
- }
-
- $volume .= $file ;
-
- return $volume ;
-}
-
-
-sub abs2rel {
- my($self,$path,$base) = @_;
-
- # Clean up $path
- if ( ! $self->file_name_is_absolute( $path ) ) {
- $path = $self->rel2abs( $path ) ;
- }
- else {
- $path = $self->canonpath( $path ) ;
- }
-
- # Figure out the effective $base and clean it up.
- if ( !defined( $base ) || $base eq '' ) {
- $base = cwd() ;
- }
- elsif ( ! $self->file_name_is_absolute( $base ) ) {
- $base = $self->rel2abs( $base ) ;
- }
- else {
- $base = $self->canonpath( $base ) ;
- }
-
- # Split up paths
- my ( undef, $path_directories, $path_file ) =
- $self->splitpath( $path, 1 ) ;
-
- my $base_directories = ($self->splitpath( $base, 1 ))[1] ;
-
- # Now, remove all leading components that are the same
- my @pathchunks = $self->splitdir( $path_directories );
- my @basechunks = $self->splitdir( $base_directories );
-
- while ( @pathchunks &&
- @basechunks &&
- lc( $pathchunks[0] ) eq lc( $basechunks[0] )
- ) {
- shift @pathchunks ;
- shift @basechunks ;
- }
-
- # No need to catdir, we know these are well formed.
- $path_directories = CORE::join( '\\', @pathchunks );
- $base_directories = CORE::join( '\\', @basechunks );
-
- # $base_directories now contains the directories the resulting relative
- # path must ascend out of before it can descend to $path_directory. So,
- # replace all names with $parentDir
-
- #FA Need to replace between backslashes...
- $base_directories =~ s|[^\\]+|..|g ;
-
- # Glue the two together, using a separator if necessary, and preventing an
- # empty result.
-
- #FA Must check that new directories are not empty.
- if ( $path_directories ne '' && $base_directories ne '' ) {
- $path_directories = "$base_directories\\$path_directories" ;
- } else {
- $path_directories = "$base_directories$path_directories" ;
- }
-
- return $self->canonpath(
- $self->catpath( "", $path_directories, $path_file )
- ) ;
-}
-
-
-sub rel2abs {
- my ($self,$path,$base ) = @_;
-
- if ( ! $self->file_name_is_absolute( $path ) ) {
-
- if ( !defined( $base ) || $base eq '' ) {
- $base = cwd() ;
- }
- elsif ( ! $self->file_name_is_absolute( $base ) ) {
- $base = $self->rel2abs( $base ) ;
- }
- else {
- $base = $self->canonpath( $base ) ;
- }
-
- my ( $path_directories, $path_file ) =
- ($self->splitpath( $path, 1 ))[1,2] ;
-
- my ( $base_volume, $base_directories ) =
- $self->splitpath( $base, 1 ) ;
-
- $path = $self->catpath(
- $base_volume,
- $self->catdir( $base_directories, $path_directories ),
- $path_file
- ) ;
- }
-
- return $self->canonpath( $path ) ;
-}
-
-=back
-
-=head1 SEE ALSO
-
-L<File::Spec>
-
-=cut
-
-1;
projects / p5sagit/p5-mst-13.2.git / commitdiff