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files >> //proc/thread-self/root/lib64/perl5/vendor_perl/File/Spec/Win32.pm
package File::Spec::Win32; use strict; use Cwd (); require File::Spec::Unix; our $VERSION = '3.74'; $VERSION =~ tr/_//d; our @ISA = qw(File::Spec::Unix); # Some regexes we use for path splitting my $DRIVE_RX = '[a-zA-Z]:'; my $UNC_RX = '(?:\\\\\\\\|//)[^\\\\/]+[\\\\/][^\\\\/]+'; my $VOL_RX = "(?:$DRIVE_RX|$UNC_RX)"; =head1 NAME File::Spec::Win32 - methods for Win32 file specs =head1 SYNOPSIS require File::Spec::Win32; # 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"; } sub rootdir { '\\' } =item tmpdir Returns a string representation of the first existing directory from the following list: $ENV{TMPDIR} $ENV{TEMP} $ENV{TMP} SYS:/temp C:\system\temp C:/temp /tmp / The SYS:/temp is preferred in Novell NetWare and the C:\system\temp for Symbian (the File::Spec::Win32 is used also for those platforms). If running under taint mode, and if the environment variables are tainted, they are not used. =cut sub tmpdir { my $tmpdir = $_[0]->_cached_tmpdir(qw(TMPDIR TEMP TMP)); return $tmpdir if defined $tmpdir; $tmpdir = $_[0]->_tmpdir( map( $ENV{$_}, qw(TMPDIR TEMP TMP) ), 'SYS:/temp', 'C:\system\temp', 'C:/temp', '/tmp', '/' ); $_[0]->_cache_tmpdir($tmpdir, qw(TMPDIR TEMP TMP)); } =item case_tolerant MSWin32 case-tolerance depends on GetVolumeInformation() $ouFsFlags == FS_CASE_SENSITIVE, indicating the case significance when comparing file specifications. Since XP FS_CASE_SENSITIVE is effectively disabled for the NT subsubsystem. See http://cygwin.com/ml/cygwin/2007-07/msg00891.html Default: 1 =cut sub case_tolerant { eval { local @INC = @INC; pop @INC if $INC[-1] eq '.'; require Win32API::File; } or return 1; my $drive = shift || "C:"; my $osFsType = "\0"x256; my $osVolName = "\0"x256; my $ouFsFlags = 0; Win32API::File::GetVolumeInformation($drive, $osVolName, 256, [], [], $ouFsFlags, $osFsType, 256 ); if ($ouFsFlags & Win32API::File::FS_CASE_SENSITIVE()) { return 0; } else { return 1; } } =item file_name_is_absolute As of right now, this returns 2 if the path is absolute with a volume, 1 if it's absolute with no volume, 0 otherwise. =cut sub file_name_is_absolute { my ($self,$file) = @_; if ($file =~ m{^($VOL_RX)}o) { my $vol = $1; return ($vol =~ m{^$UNC_RX}o ? 2 : $file =~ m{^$DRIVE_RX[\\/]}o ? 2 : 0); } return $file =~ m{^[\\/]} ? 1 : 0; } =item catfile Concatenate one or more directory names and a filename to form a complete path ending with a filename =cut sub catfile { shift; # Legacy / compatibility support # shift, return _canon_cat( "/", @_ ) if $_[0] eq ""; # Compatibility with File::Spec <= 3.26: # catfile('A:', 'foo') should return 'A:\foo'. return _canon_cat( ($_[0].'\\'), @_[1..$#_] ) if $_[0] =~ m{^$DRIVE_RX\z}o; return _canon_cat( @_ ); } sub catdir { shift; # Legacy / compatibility support # return "" unless @_; shift, return _canon_cat( "/", @_ ) if $_[0] eq ""; # Compatibility with File::Spec <= 3.26: # catdir('A:', 'foo') should return 'A:\foo'. return _canon_cat( ($_[0].'\\'), @_[1..$#_] ) if $_[0] =~ m{^$DRIVE_RX\z}o; return _canon_cat( @_ ); } sub path { my @path = split(';', $ENV{PATH}); s/"//g for @path; @path = grep length, @path; unshift(@path, "."); return @path; } =item canonpath No physical check on the filesystem, but a logical cleanup of a path. On UNIX eliminated successive slashes and successive "/.". On Win32 makes dir1\dir2\dir3\..\..\dir4 -> \dir\dir4 and even dir1\dir2\dir3\...\dir4 -> \dir\dir4 =cut sub canonpath { # Legacy / compatibility support # return $_[1] if !defined($_[1]) or $_[1] eq ''; return _canon_cat( $_[1] ); } =item splitpath ($volume,$directories,$file) = File::Spec->splitpath( $path ); ($volume,$directories,$file) = File::Spec->splitpath( $path, $no_file ); Splits a path into volume, directory, and filename portions. Assumes that the last file is a path unless the path ends in '\\', '\\.', '\\..' or $no_file is true. On Win32 this means that $no_file true makes this return ( $volume, $path, '' ). Separators accepted are \ and /. Volumes can be drive letters or UNC sharenames (\\server\share). The results can be passed to L</catpath> to get back a path equivalent to (usually identical to) the original path. =cut sub splitpath { my ($self,$path, $nofile) = @_; my ($volume,$directory,$file) = ('','',''); if ( $nofile ) { $path =~ m{^ ( $VOL_RX ? ) (.*) }sox; $volume = $1; $directory = $2; } else { $path =~ m{^ ( $VOL_RX ? ) ( (?:.*[\\/](?:\.\.?\Z(?!\n))?)? ) (.*) }sox; $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 my $v; $volume .= $v if ( (($v) = $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 $volume ; } sub _same { lc($_[1]) eq lc($_[2]); } sub rel2abs { my ($self,$path,$base ) = @_; my $is_abs = $self->file_name_is_absolute($path); # Check for volume (should probably document the '2' thing...) return $self->canonpath( $path ) if $is_abs == 2; if ($is_abs) { # It's missing a volume, add one my $vol = ($self->splitpath( Cwd::getcwd() ))[0]; return $self->canonpath( $vol . $path ); } if ( !defined( $base ) || $base eq '' ) { $base = Cwd::getdcwd( ($self->splitpath( $path ))[0] ) if defined &Cwd::getdcwd ; $base = Cwd::getcwd() unless defined $base ; } 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( $path ) ; } =back =head2 Note For File::Spec::Win32 Maintainers Novell NetWare inherits its File::Spec behaviour from File::Spec::Win32. =head1 COPYRIGHT Copyright (c) 2004,2007 by the Perl 5 Porters. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =head1 SEE ALSO See L<File::Spec> and L<File::Spec::Unix>. This package overrides the implementation of these methods, not the semantics. =cut sub _canon_cat # @path -> path { my ($first, @rest) = @_; my $volume = $first =~ s{ \A ([A-Za-z]:) ([\\/]?) }{}x # drive letter ? ucfirst( $1 ).( $2 ? "\\" : "" ) : $first =~ s{ \A (?:\\\\|//) ([^\\/]+) (?: [\\/] ([^\\/]+) )? [\\/]? }{}xs # UNC volume ? "\\\\$1".( defined $2 ? "\\$2" : "" )."\\" : $first =~ s{ \A [\\/] }{}x # root dir ? "\\" : ""; my $path = join "\\", $first, @rest; $path =~ tr#\\/#\\\\#s; # xx/yy --> xx\yy & xx\\yy --> xx\yy # xx/././yy --> xx/yy $path =~ s{(?: (?:\A|\\) # at begin or after a slash \. (?:\\\.)* # and more (?:\\|\z) # at end or followed by slash )+ # performance boost -- I do not know why }{\\}gx; # XXX I do not know whether more dots are supported by the OS supporting # this ... annotation (NetWare or symbian but not MSWin32). # Then .... could easily become ../../.. etc: # Replace \.\.\. by (\.\.\.+) and substitute with # { $1 . ".." . "\\.." x (length($2)-2) }gex # ... --> ../.. $path =~ s{ (\A|\\) # at begin or after a slash \.\.\. (?=\\|\z) # at end or followed by slash }{$1..\\..}gx; # xx\yy\..\zz --> xx\zz while ( $path =~ s{(?: (?:\A|\\) # at begin or after a slash [^\\]+ # rip this 'yy' off \\\.\. (?<!\A\.\.\\\.\.) # do *not* replace ^..\.. (?<!\\\.\.\\\.\.) # do *not* replace \..\.. (?:\\|\z) # at end or followed by slash )+ # performance boost -- I do not know why }{\\}sx ) {} $path =~ s#\A\\##; # \xx --> xx NOTE: this is *not* root $path =~ s#\\\z##; # xx\ --> xx if ( $volume =~ m#\\\z# ) { # <vol>\.. --> <vol>\ $path =~ s{ \A # at begin \.\. (?:\\\.\.)* # and more (?:\\|\z) # at end or followed by slash }{}x; return $1 # \\HOST\SHARE\ --> \\HOST\SHARE if $path eq "" and $volume =~ m#\A(\\\\.*)\\\z#s; } return $path ne "" || $volume ? $volume.$path : "."; } 1;
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