Initial Windows agent repository

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Frank Harris 2026-06-08 10:45:20 -05:00
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#!perl -w
#
# Documentation at the __END__
#
package File::DosGlob;
our $VERSION = '1.12';
use strict;
use warnings;
require XSLoader;
XSLoader::load();
sub doglob {
my $cond = shift;
my @retval = ();
my $fix_drive_relative_paths;
OUTER:
for my $pat (@_) {
my @matched = ();
my @globdirs = ();
my $head = '.';
my $sepchr = '/';
my $tail;
next OUTER unless defined $pat and $pat ne '';
# if arg is within quotes strip em and do no globbing
if ($pat =~ /^"(.*)"\z/s) {
$pat = $1;
if ($cond eq 'd') { push(@retval, $pat) if -d $pat }
else { push(@retval, $pat) if -e $pat }
next OUTER;
}
# wildcards with a drive prefix such as h:*.pm must be changed
# to h:./*.pm to expand correctly
if ($pat =~ m|^([A-Za-z]:)[^/\\]|s) {
substr($pat,0,2) = $1 . "./";
$fix_drive_relative_paths = 1;
}
if ($pat =~ m|^(.*)([\\/])([^\\/]*)\z|s) {
($head, $sepchr, $tail) = ($1,$2,$3);
push (@retval, $pat), next OUTER if $tail eq '';
if ($head =~ /[*?]/) {
@globdirs = doglob('d', $head);
push(@retval, doglob($cond, map {"$_$sepchr$tail"} @globdirs)),
next OUTER if @globdirs;
}
$head .= $sepchr if $head eq '' or $head =~ /^[A-Za-z]:\z/s;
$pat = $tail;
}
#
# If file component has no wildcards, we can avoid opendir
unless ($pat =~ /[*?]/) {
$head = '' if $head eq '.';
$head .= $sepchr unless $head eq '' or substr($head,-1) eq $sepchr;
$head .= $pat;
if ($cond eq 'd') { push(@retval,$head) if -d $head }
else { push(@retval,$head) if -e $head }
next OUTER;
}
opendir(D, $head) or next OUTER;
my @leaves = readdir D;
closedir D;
# VMS-format filespecs, especially if they contain extended characters,
# are unlikely to match patterns correctly, so Unixify them.
if ($^O eq 'VMS') {
require VMS::Filespec;
@leaves = map {$_ =~ s/\.$//; VMS::Filespec::unixify($_)} @leaves;
}
$head = '' if $head eq '.';
$head .= $sepchr unless $head eq '' or substr($head,-1) eq $sepchr;
# escape regex metachars but not glob chars
$pat =~ s:([].+^\-\${}()[|]):\\$1:g;
# and convert DOS-style wildcards to regex
$pat =~ s/\*/.*/g;
$pat =~ s/\?/.?/g;
my $matchsub = sub { $_[0] =~ m|^$pat\z|is };
INNER:
for my $e (@leaves) {
next INNER if $e eq '.' or $e eq '..';
next INNER if $cond eq 'd' and ! -d "$head$e";
push(@matched, "$head$e"), next INNER if &$matchsub($e);
#
# [DOS compatibility special case]
# Failed, add a trailing dot and try again, but only
# if name does not have a dot in it *and* pattern
# has a dot *and* name is shorter than 9 chars.
#
if (index($e,'.') == -1 and length($e) < 9
and index($pat,'\\.') != -1) {
push(@matched, "$head$e"), next INNER if &$matchsub("$e.");
}
}
push @retval, @matched if @matched;
}
if ($fix_drive_relative_paths) {
s|^([A-Za-z]:)\./|$1| for @retval;
}
return @retval;
}
#
# this can be used to override CORE::glob in a specific
# package by saying C<use File::DosGlob 'glob';> in that
# namespace.
#
# context (keyed by second cxix arg provided by core)
our %entries;
sub glob {
my($pat,$cxix) = ($_[0], _callsite());
my @pat;
# glob without args defaults to $_
$pat = $_ unless defined $pat;
# if we're just beginning, do it all first
if (!$entries{$cxix}) {
# extract patterns
if ($pat =~ /\s/) {
require Text::ParseWords;
@pat = Text::ParseWords::parse_line('\s+',0,$pat);
}
else {
push @pat, $pat;
}
# Mike Mestnik: made to do abc{1,2,3} == abc1 abc2 abc3.
# abc3 will be the original {3} (and drop the {}).
# abc1 abc2 will be put in @appendpat.
# This was just the easiest way, not nearly the best.
REHASH: {
my @appendpat = ();
for (@pat) {
# There must be a "," I.E. abc{efg} is not what we want.
while ( /^(.*)(?<!\\)\{(.*?)(?<!\\)\,.*?(?<!\\)\}(.*)$/ ) {
my ($start, $match, $end) = ($1, $2, $3);
#print "Got: \n\t$start\n\t$match\n\t$end\n";
my $tmp = "$start$match$end";
while ( $tmp =~ s/^(.*?)(?<!\\)\{(?:.*(?<!\\)\,)?(.*\Q$match\E.*?)(?:(?<!\\)\,.*)?(?<!\\)\}(.*)$/$1$2$3/ ) {
# these expansions will be performed by the original,
# when we call REHASH.
}
push @appendpat, ("$tmp");
s/^\Q$start\E(?<!\\)\{\Q$match\E(?<!\\)\,/$start\{/;
if ( /^\Q$start\E(?<!\\)\{(?!.*?(?<!\\)\,.*?\Q$end\E$)(.*)(?<!\\)\}\Q$end\E$/ ) {
$match = $1;
#print "GOT: \n\t$start\n\t$match\n\t$end\n\n";
$_ = "$start$match$end";
}
}
#print "Sould have "GOT" vs "Got"!\n";
#FIXME: There should be checking for this.
# How or what should be done about failure is beyond me.
}
if ( $#appendpat != -1
) {
#FIXME: Max loop, no way! :")
for ( @appendpat ) {
push @pat, $_;
}
goto REHASH;
}
}
for ( @pat ) {
s/\\([{},])/$1/g;
}
$entries{$cxix} = [doglob(1,@pat)];
}
# chuck it all out, quick or slow
if (wantarray) {
return @{delete $entries{$cxix}};
}
else {
if (scalar @{$entries{$cxix}}) {
return shift @{$entries{$cxix}};
}
else {
# return undef for EOL
delete $entries{$cxix};
return undef;
}
}
}
{
no strict 'refs';
sub import {
my $pkg = shift;
return unless @_;
my $sym = shift;
my $callpkg = ($sym =~ s/^GLOBAL_//s ? 'CORE::GLOBAL' : caller(0));
*{$callpkg.'::'.$sym} = \&{$pkg.'::'.$sym} if $sym eq 'glob';
}
}
1;
__END__
=head1 NAME
File::DosGlob - DOS like globbing and then some
=head1 SYNOPSIS
require 5.004;
# override CORE::glob in current package
use File::DosGlob 'glob';
# override CORE::glob in ALL packages (use with extreme caution!)
use File::DosGlob 'GLOBAL_glob';
@perlfiles = glob "..\\pe?l/*.p?";
print <..\\pe?l/*.p?>;
# from the command line (overrides only in main::)
> perl -MFile::DosGlob=glob -e "print <../pe*/*p?>"
=head1 DESCRIPTION
A module that implements DOS-like globbing with a few enhancements.
It is largely compatible with perlglob.exe (the M$ setargv.obj
version) in all but one respect--it understands wildcards in
directory components.
For example, C<< <..\\l*b\\file/*glob.p?> >> will work as expected (in
that it will find something like '..\lib\File/DosGlob.pm' alright).
Note that all path components are case-insensitive, and that
backslashes and forward slashes are both accepted, and preserved.
You may have to double the backslashes if you are putting them in
literally, due to double-quotish parsing of the pattern by perl.
Spaces in the argument delimit distinct patterns, so
C<glob('*.exe *.dll')> globs all filenames that end in C<.exe>
or C<.dll>. If you want to put in literal spaces in the glob
pattern, you can escape them with either double quotes, or backslashes.
e.g. C<glob('c:/"Program Files"/*/*.dll')>, or
C<glob('c:/Program\ Files/*/*.dll')>. The argument is tokenized using
C<Text::ParseWords::parse_line()>, so see L<Text::ParseWords> for details
of the quoting rules used.
Extending it to csh patterns is left as an exercise to the reader.
=head1 EXPORTS (by request only)
glob()
=head1 BUGS
Should probably be built into the core, and needs to stop
pandering to DOS habits. Needs a dose of optimization too.
=head1 AUTHOR
Gurusamy Sarathy <gsar@activestate.com>
=head1 HISTORY
=over 4
=item *
Support for globally overriding glob() (GSAR 3-JUN-98)
=item *
Scalar context, independent iterator context fixes (GSAR 15-SEP-97)
=item *
A few dir-vs-file optimizations result in glob importation being
10 times faster than using perlglob.exe, and using perlglob.bat is
only twice as slow as perlglob.exe (GSAR 28-MAY-97)
=item *
Several cleanups prompted by lack of compatible perlglob.exe
under Borland (GSAR 27-MAY-97)
=item *
Initial version (GSAR 20-FEB-97)
=back
=head1 SEE ALSO
perl
perlglob.bat
Text::ParseWords
=cut

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package File::Glob;
use strict;
our($DEFAULT_FLAGS);
require XSLoader;
# NOTE: The glob() export is only here for compatibility with 5.6.0.
# csh_glob() should not be used directly, unless you know what you're doing.
our %EXPORT_TAGS = (
'glob' => [ qw(
GLOB_ABEND
GLOB_ALPHASORT
GLOB_ALTDIRFUNC
GLOB_BRACE
GLOB_CSH
GLOB_ERR
GLOB_ERROR
GLOB_LIMIT
GLOB_MARK
GLOB_NOCASE
GLOB_NOCHECK
GLOB_NOMAGIC
GLOB_NOSORT
GLOB_NOSPACE
GLOB_QUOTE
GLOB_TILDE
bsd_glob
) ],
);
$EXPORT_TAGS{bsd_glob} = [@{$EXPORT_TAGS{glob}}];
our @EXPORT_OK = (@{$EXPORT_TAGS{'glob'}}, 'csh_glob');
our $VERSION = '1.42';
sub import {
require Exporter;
local $Exporter::ExportLevel = $Exporter::ExportLevel + 1;
Exporter::import(grep {
my $passthrough;
if ($_ eq ':case') {
$DEFAULT_FLAGS &= ~GLOB_NOCASE()
}
elsif ($_ eq ':nocase') {
$DEFAULT_FLAGS |= GLOB_NOCASE();
}
elsif ($_ eq ':globally') {
no warnings 'redefine';
*CORE::GLOBAL::glob = \&File::Glob::csh_glob;
}
elsif ($_ eq ':bsd_glob') {
no strict; *{caller."::glob"} = \&bsd_glob_override;
$passthrough = 1;
}
else {
$passthrough = 1;
}
$passthrough;
} @_);
}
XSLoader::load();
$DEFAULT_FLAGS = GLOB_CSH();
if ($^O =~ /^(?:MSWin32|VMS|os2|riscos)$/) {
$DEFAULT_FLAGS |= GLOB_NOCASE();
}
1;
__END__
=head1 NAME
File::Glob - Perl extension for BSD glob routine
=head1 SYNOPSIS
use File::Glob ':bsd_glob';
@list = bsd_glob('*.[ch]');
$homedir = bsd_glob('~gnat', GLOB_TILDE | GLOB_ERR);
if (GLOB_ERROR) {
# an error occurred reading $homedir
}
## override the core glob (CORE::glob() does this automatically
## by default anyway, since v5.6.0)
use File::Glob ':globally';
my @sources = <*.{c,h,y}>;
## override the core glob, forcing case sensitivity
use File::Glob qw(:globally :case);
my @sources = <*.{c,h,y}>;
## override the core glob forcing case insensitivity
use File::Glob qw(:globally :nocase);
my @sources = <*.{c,h,y}>;
## glob on all files in home directory
use File::Glob ':globally';
my @sources = <~gnat/*>;
=head1 DESCRIPTION
The glob angle-bracket operator C<< <> >> is a pathname generator that
implements the rules for file name pattern matching used by Unix-like shells
such as the Bourne shell or C shell.
File::Glob::bsd_glob() implements the FreeBSD glob(3) routine, which is
a superset of the POSIX glob() (described in IEEE Std 1003.2 "POSIX.2").
bsd_glob() takes a mandatory C<pattern> argument, and an optional
C<flags> argument, and returns a list of filenames matching the
pattern, with interpretation of the pattern modified by the C<flags>
variable.
Since v5.6.0, Perl's CORE::glob() is implemented in terms of bsd_glob().
Note that they don't share the same prototype--CORE::glob() only accepts
a single argument. Due to historical reasons, CORE::glob() will also
split its argument on whitespace, treating it as multiple patterns,
whereas bsd_glob() considers them as one pattern. But see C<:bsd_glob>
under L</EXPORTS>, below.
=head2 META CHARACTERS
\ Quote the next metacharacter
[] Character class
{} Multiple pattern
* Match any string of characters
? Match any single character
~ User name home directory
The metanotation C<a{b,c,d}e> is a shorthand for C<abe ace ade>. Left to
right order is preserved, with results of matches being sorted separately
at a low level to preserve this order. As a special case C<{>, C<}>, and
C<{}> are passed undisturbed.
=head2 EXPORTS
See also the L</POSIX FLAGS> below, which can be exported individually.
=head3 C<:bsd_glob>
The C<:bsd_glob> export tag exports bsd_glob() and the constants listed
below. It also overrides glob() in the calling package with one that
behaves like bsd_glob() with regard to spaces (the space is treated as part
of a file name), but supports iteration in scalar context; i.e., it
preserves the core function's feature of returning the next item each time
it is called.
=head3 C<:glob>
The C<:glob> tag, now discouraged, is the old version of C<:bsd_glob>. It
exports the same constants and functions, but its glob() override does not
support iteration; it returns the last file name in scalar context. That
means this will loop forever:
use File::Glob ':glob';
while (my $file = <* copy.txt>) {
...
}
=head3 C<bsd_glob>
This function, which is included in the two export tags listed above,
takes one or two arguments. The first is the glob pattern. The
second, if given, is a set of flags ORed together. The available
flags and the default set of flags are listed below under L</POSIX FLAGS>.
Remember that to use the named constants for flags you must import
them, for example with C<:bsd_glob> described above. If not imported,
and C<use strict> is not in effect, then the constants will be
treated as bareword strings, which won't do what you what.
=head3 C<:nocase> and C<:case>
These two export tags globally modify the default flags that bsd_glob()
and, except on VMS, Perl's built-in C<glob> operator use. C<GLOB_NOCASE>
is turned on or off, respectively.
=head3 C<csh_glob>
The csh_glob() function can also be exported, but you should not use it
directly unless you really know what you are doing. It splits the pattern
into words and feeds each one to bsd_glob(). Perl's own glob() function
uses this internally.
=head2 POSIX FLAGS
If no flags argument is given then C<GLOB_CSH> is set, and on VMS and
Windows systems, C<GLOB_NOCASE> too. Otherwise the flags to use are
determined solely by the flags argument. The POSIX defined flags are:
=over 4
=item C<GLOB_ERR>
Force bsd_glob() to return an error when it encounters a directory it
cannot open or read. Ordinarily bsd_glob() continues to find matches.
=item C<GLOB_LIMIT>
Make bsd_glob() return an error (GLOB_NOSPACE) when the pattern expands
to a size bigger than the system constant C<ARG_MAX> (usually found in
limits.h). If your system does not define this constant, bsd_glob() uses
C<sysconf(_SC_ARG_MAX)> or C<_POSIX_ARG_MAX> where available (in that
order). You can inspect these values using the standard C<POSIX>
extension.
=item C<GLOB_MARK>
Each pathname that is a directory that matches the pattern has a slash
appended.
=item C<GLOB_NOCASE>
By default, file names are assumed to be case sensitive; this flag
makes bsd_glob() treat case differences as not significant.
=item C<GLOB_NOCHECK>
If the pattern does not match any pathname, then bsd_glob() returns a list
consisting of only the pattern. If C<GLOB_QUOTE> is set, its effect
is present in the pattern returned.
=item C<GLOB_NOSORT>
By default, the pathnames are sorted in ascending ASCII order; this
flag prevents that sorting (speeding up bsd_glob()).
=back
The FreeBSD extensions to the POSIX standard are the following flags:
=over 4
=item C<GLOB_BRACE>
Pre-process the string to expand C<{pat,pat,...}> strings like csh(1).
The pattern '{}' is left unexpanded for historical reasons (and csh(1)
does the same thing to ease typing of find(1) patterns).
=item C<GLOB_NOMAGIC>
Same as C<GLOB_NOCHECK> but it only returns the pattern if it does not
contain any of the special characters "*", "?" or "[". C<NOMAGIC> is
provided to simplify implementing the historic csh(1) globbing
behaviour and should probably not be used anywhere else.
=item C<GLOB_QUOTE>
Use the backslash ('\') character for quoting: every occurrence of a
backslash followed by a character in the pattern is replaced by that
character, avoiding any special interpretation of the character.
(But see below for exceptions on DOSISH systems).
=item C<GLOB_TILDE>
Expand patterns that start with '~' to user name home directories.
=item C<GLOB_CSH>
For convenience, C<GLOB_CSH> is a synonym for
C<GLOB_BRACE | GLOB_NOMAGIC | GLOB_QUOTE | GLOB_TILDE | GLOB_ALPHASORT>.
=back
The POSIX provided C<GLOB_APPEND>, C<GLOB_DOOFFS>, and the FreeBSD
extensions C<GLOB_ALTDIRFUNC>, and C<GLOB_MAGCHAR> flags have not been
implemented in the Perl version because they involve more complex
interaction with the underlying C structures.
The following flag has been added in the Perl implementation for
csh compatibility:
=over 4
=item C<GLOB_ALPHASORT>
If C<GLOB_NOSORT> is not in effect, sort filenames is alphabetical
order (case does not matter) rather than in ASCII order.
=back
=head1 DIAGNOSTICS
bsd_glob() returns a list of matching paths, possibly zero length. If an
error occurred, &File::Glob::GLOB_ERROR will be non-zero and C<$!> will be
set. &File::Glob::GLOB_ERROR is guaranteed to be zero if no error occurred,
or one of the following values otherwise:
=over 4
=item C<GLOB_NOSPACE>
An attempt to allocate memory failed.
=item C<GLOB_ABEND>
The glob was stopped because an error was encountered.
=back
In the case where bsd_glob() has found some matching paths, but is
interrupted by an error, it will return a list of filenames B<and>
set &File::Glob::ERROR.
Note that bsd_glob() deviates from POSIX and FreeBSD glob(3) behaviour
by not considering C<ENOENT> and C<ENOTDIR> as errors - bsd_glob() will
continue processing despite those errors, unless the C<GLOB_ERR> flag is
set.
Be aware that all filenames returned from File::Glob are tainted.
=head1 NOTES
=over 4
=item *
If you want to use multiple patterns, e.g. C<bsd_glob("a* b*")>, you should
probably throw them in a set as in C<bsd_glob("{a*,b*}")>. This is because
the argument to bsd_glob() isn't subjected to parsing by the C shell.
Remember that you can use a backslash to escape things.
=item *
On DOSISH systems, backslash is a valid directory separator character.
In this case, use of backslash as a quoting character (via GLOB_QUOTE)
interferes with the use of backslash as a directory separator. The
best (simplest, most portable) solution is to use forward slashes for
directory separators, and backslashes for quoting. However, this does
not match "normal practice" on these systems. As a concession to user
expectation, therefore, backslashes (under GLOB_QUOTE) only quote the
glob metacharacters '[', ']', '{', '}', '-', '~', and backslash itself.
All other backslashes are passed through unchanged.
=item *
Win32 users should use the real slash. If you really want to use
backslashes, consider using Sarathy's File::DosGlob, which comes with
the standard Perl distribution.
=back
=head1 SEE ALSO
L<perlfunc/glob>, glob(3)
=head1 AUTHOR
The Perl interface was written by Nathan Torkington E<lt>gnat@frii.comE<gt>,
and is released under the artistic license. Further modifications were
made by Greg Bacon E<lt>gbacon@cs.uah.eduE<gt>, Gurusamy Sarathy
E<lt>gsar@activestate.comE<gt>, and Thomas Wegner
E<lt>wegner_thomas@yahoo.comE<gt>. The C glob code has the
following copyright:
Copyright (c) 1989, 1993 The Regents of the University of California.
All rights reserved.
This code is derived from software contributed to Berkeley by
Guido van Rossum.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
=over 4
=item 1.
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
=item 2.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
=item 3.
Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
=back
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
=cut

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package File::Spec;
use strict;
# Keep $VERSION consistent in all *.pm files in this distribution, including
# Cwd.pm.
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
my %module = (
MSWin32 => 'Win32',
os2 => 'OS2',
VMS => 'VMS',
NetWare => 'Win32', # Yes, File::Spec::Win32 works on NetWare.
symbian => 'Win32', # Yes, File::Spec::Win32 works on symbian.
dos => 'OS2', # Yes, File::Spec::OS2 works on DJGPP.
cygwin => 'Cygwin',
amigaos => 'AmigaOS');
my $module = $module{$^O} || 'Unix';
require "File/Spec/$module.pm";
our @ISA = ("File::Spec::$module");
1;
__END__
=head1 NAME
File::Spec - portably perform operations on file names
=head1 SYNOPSIS
use File::Spec;
my $x = File::Spec->catfile('a', 'b', 'c');
which returns 'a/b/c' under Unix. Or:
use File::Spec::Functions;
my $x = catfile('a', 'b', 'c');
=head1 DESCRIPTION
This module is designed to support operations commonly performed on file
specifications (usually called "file names", but not to be confused with the
contents of a file, or Perl's file handles), such as concatenating several
directory and file names into a single path, or determining whether a path
is rooted. It is based on code directly taken from MakeMaker 5.17, code
written by Andreas KE<ouml>nig, Andy Dougherty, Charles Bailey, Ilya
Zakharevich, Paul Schinder, and others.
Since these functions are different for most operating systems, each set of
OS specific routines is available in a separate module, including:
File::Spec::Unix
File::Spec::Mac
File::Spec::OS2
File::Spec::Win32
File::Spec::VMS
The module appropriate for the current OS is automatically loaded by
File::Spec. Since some modules (like VMS) make use of facilities available
only under that OS, it may not be possible to load all modules under all
operating systems.
Since File::Spec is object oriented, subroutines should not be called directly,
as in:
File::Spec::catfile('a','b');
but rather as class methods:
File::Spec->catfile('a','b');
For simple uses, L<File::Spec::Functions> provides convenient functional
forms of these methods.
=head1 METHODS
=over 2
=item canonpath
X<canonpath>
No physical check on the filesystem, but a logical cleanup of a
path.
$cpath = File::Spec->canonpath( $path ) ;
Note that this does *not* collapse F<x/../y> sections into F<y>. This
is by design. If F</foo> on your system is a symlink to F</bar/baz>,
then F</foo/../quux> is actually F</bar/quux>, not F</quux> as a naive
F<../>-removal would give you. If you want to do this kind of
processing, you probably want C<Cwd>'s C<realpath()> function to
actually traverse the filesystem cleaning up paths like this.
=item catdir
X<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
OS/2. Of course, if this is the root directory, don't cut off the
trailing slash :-)
$path = File::Spec->catdir( @directories );
=item catfile
X<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
X<curdir>
Returns a string representation of the current directory.
$curdir = File::Spec->curdir();
=item devnull
X<devnull>
Returns a string representation of the null device.
$devnull = File::Spec->devnull();
=item rootdir
X<rootdir>
Returns a string representation of the root directory.
$rootdir = File::Spec->rootdir();
=item tmpdir
X<tmpdir>
Returns a string representation of the first writable directory from a
list of possible temporary directories. Returns the current directory
if no writable temporary directories are found. The list of directories
checked depends on the platform; e.g. File::Spec::Unix checks C<$ENV{TMPDIR}>
(unless taint is on) and F</tmp>.
$tmpdir = File::Spec->tmpdir();
=item updir
X<updir>
Returns a string representation of the parent directory.
$updir = File::Spec->updir();
=item no_upwards
Given a list of files in a directory (such as from C<readdir()>),
strip out C<'.'> and C<'..'>.
B<SECURITY NOTE:> This does NOT filter paths containing C<'..'>, like
C<'../../../../etc/passwd'>, only literal matches to C<'.'> and C<'..'>.
@paths = File::Spec->no_upwards( readdir $dirhandle );
=item case_tolerant
Returns a true or false value indicating, respectively, that alphabetic
case is not or is significant when comparing file specifications.
Cygwin and Win32 accept an optional drive argument.
$is_case_tolerant = File::Spec->case_tolerant();
=item file_name_is_absolute
Takes as its argument a path, and returns true if it is an absolute path.
$is_absolute = File::Spec->file_name_is_absolute( $path );
This does not consult the local filesystem on Unix, Win32, OS/2, or
Mac OS (Classic). It does consult the working environment for VMS
(see L<File::Spec::VMS/file_name_is_absolute>).
=item path
X<path>
Takes no argument. Returns the environment variable C<PATH> (or the local
platform's equivalent) as a list.
@PATH = File::Spec->path();
=item join
X<join, path>
join is the same as catfile.
=item splitpath
X<splitpath> X<split, path>
Splits a path in to volume, directory, and filename portions. On systems
with no concept of volume, returns '' for volume.
($volume,$directories,$file) =
File::Spec->splitpath( $path );
($volume,$directories,$file) =
File::Spec->splitpath( $path, $no_file );
For systems with no syntax differentiating filenames from directories,
assumes that the last file is a path unless C<$no_file> is true or a
trailing separator or F</.> or F</..> is present. On Unix, this means that C<$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
X<splitdir> X<split, dir>
The opposite of L</catdir>.
@dirs = File::Spec->splitdir( $directories );
C<$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 OSes.
=item catpath()
Takes volume, directory and file portions and returns an entire path. Under
Unix, C<$volume> is ignored, and directory and file are concatenated. A '/' is
inserted if need be. On other OSes, C<$volume> is significant.
$full_path = File::Spec->catpath( $volume, $directory, $file );
=item abs2rel
X<abs2rel> X<absolute, path> X<relative, path>
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, $base ) ;
If C<$base> is not present or '', then L<Cwd::cwd()|Cwd> is used. If C<$base> is
relative, then it is converted to absolute form using
L</rel2abs()>. This means that it is taken to be relative to
L<Cwd::cwd()|Cwd>.
On systems with the concept of volume, if C<$path> and C<$base> appear to be
on two different volumes, we will not attempt to resolve the two
paths, and we will instead simply return C<$path>. Note that previous
versions of this module ignored the volume of C<$base>, which resulted in
garbage results part of the time.
On systems that have a grammar that indicates filenames, this ignores the
C<$base> filename as well. Otherwise all path components are assumed to be
directories.
If C<$path> is relative, it is converted to absolute form using L</rel2abs()>.
This means that it is taken to be relative to L<Cwd::cwd()|Cwd>.
No checks against the filesystem are made. On VMS, there is
interaction with the working environment, as logicals and
macros are expanded.
Based on code written by Shigio Yamaguchi.
=item rel2abs()
X<rel2abs> X<absolute, path> X<relative, path>
Converts a relative path to an absolute path.
$abs_path = File::Spec->rel2abs( $path ) ;
$abs_path = File::Spec->rel2abs( $path, $base ) ;
If C<$base> is not present or '', then L<Cwd::cwd()|Cwd> is used. If C<$base> is relative,
then it is converted to absolute form using L</rel2abs()>. This means that it
is taken to be relative to L<Cwd::cwd()|Cwd>.
On systems with the concept of volume, if C<$path> and C<$base> appear to be
on two different volumes, we will not attempt to resolve the two
paths, and we will instead simply return C<$path>. Note that previous
versions of this module ignored the volume of C<$base>, which resulted in
garbage results part of the time.
On systems that have a grammar that indicates filenames, this ignores the
C<$base> filename as well. Otherwise all path components are assumed to be
directories.
If C<$path> is absolute, it is cleaned up and returned using L</canonpath>.
No checks against the filesystem are made. 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
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 AUTHOR
Maintained by perl5-porters <F<perl5-porters@perl.org>>.
The vast majority of the code was written by
Kenneth Albanowski C<< <kjahds@kjahds.com> >>,
Andy Dougherty C<< <doughera@lafayette.edu> >>,
Andreas KE<ouml>nig C<< <A.Koenig@franz.ww.TU-Berlin.DE> >>,
Tim Bunce C<< <Tim.Bunce@ig.co.uk> >>.
VMS support by Charles Bailey C<< <bailey@newman.upenn.edu> >>.
OS/2 support by Ilya Zakharevich C<< <ilya@math.ohio-state.edu> >>.
Mac support by Paul Schinder C<< <schinder@pobox.com> >>, and
Thomas Wegner C<< <wegner_thomas@yahoo.com> >>.
abs2rel() and rel2abs() written by Shigio Yamaguchi C<< <shigio@tamacom.com> >>,
modified by Barrie Slaymaker C<< <barries@slaysys.com> >>.
splitpath(), splitdir(), catpath() and catdir() by Barrie Slaymaker.
=head1 COPYRIGHT
Copyright (c) 2004-2013 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.
=cut

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package File::Spec::AmigaOS;
use strict;
require File::Spec::Unix;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
our @ISA = qw(File::Spec::Unix);
=head1 NAME
File::Spec::AmigaOS - File::Spec for AmigaOS
=head1 SYNOPSIS
require File::Spec::AmigaOS; # Done automatically by File::Spec
# if needed
=head1 DESCRIPTION
Methods for manipulating file specifications.
=head1 METHODS
=over 2
=item tmpdir
Returns $ENV{TMPDIR} or if that is unset, "/t".
=cut
my $tmpdir;
sub tmpdir {
return $tmpdir if defined $tmpdir;
$tmpdir = $_[0]->_tmpdir( $ENV{TMPDIR}, "/t" );
}
=item file_name_is_absolute
Returns true if there's a colon in the file name,
or if it begins with a slash.
=cut
sub file_name_is_absolute {
my ($self, $file) = @_;
# Not 100% robust as a "/" must not preceded a ":"
# but this cannot happen in a well formed path.
return $file =~ m{^/|:}s;
}
=back
All the other methods are from L<File::Spec::Unix>.
=cut
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package File::Spec::Cygwin;
use strict;
require File::Spec::Unix;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
our @ISA = qw(File::Spec::Unix);
=head1 NAME
File::Spec::Cygwin - methods for Cygwin file specs
=head1 SYNOPSIS
require File::Spec::Cygwin; # Done internally by File::Spec if needed
=head1 DESCRIPTION
See L<File::Spec> and L<File::Spec::Unix>. This package overrides the
implementation of these methods, not the semantics.
This module is still in beta. Cygwin-knowledgeable folks are invited
to offer patches and suggestions.
=cut
=pod
=over 4
=item canonpath
Any C<\> (backslashes) are converted to C</> (forward slashes),
and then File::Spec::Unix canonpath() is called on the result.
=cut
sub canonpath {
my($self,$path) = @_;
return unless defined $path;
$path =~ s|\\|/|g;
# Handle network path names beginning with double slash
my $node = '';
if ( $path =~ s@^(//[^/]+)(?:/|\z)@/@s ) {
$node = $1;
}
return $node . $self->SUPER::canonpath($path);
}
sub catdir {
my $self = shift;
return unless @_;
# Don't create something that looks like a //network/path
if ($_[0] and ($_[0] eq '/' or $_[0] eq '\\')) {
shift;
return $self->SUPER::catdir('', @_);
}
$self->SUPER::catdir(@_);
}
=pod
=item file_name_is_absolute
True is returned if the file name begins with C<drive_letter:>,
and if not, File::Spec::Unix file_name_is_absolute() is called.
=cut
sub file_name_is_absolute {
my ($self,$file) = @_;
return 1 if $file =~ m{^([a-z]:)?[\\/]}is; # C:/test
return $self->SUPER::file_name_is_absolute($file);
}
=item tmpdir (override)
Returns a string representation of the first existing directory
from the following list:
$ENV{TMPDIR}
/tmp
$ENV{'TMP'}
$ENV{'TEMP'}
C:/temp
If running under taint mode, and if the environment
variables are tainted, they are not used.
=cut
sub tmpdir {
my $cached = $_[0]->_cached_tmpdir(qw 'TMPDIR TMP TEMP');
return $cached if defined $cached;
$_[0]->_cache_tmpdir(
$_[0]->_tmpdir(
$ENV{TMPDIR}, "/tmp", $ENV{'TMP'}, $ENV{'TEMP'}, 'C:/temp'
),
qw 'TMPDIR TMP TEMP'
);
}
=item case_tolerant
Override Unix. Cygwin case-tolerance depends on managed mount settings and
as with MsWin32 on GetVolumeInformation() $ouFsFlags == FS_CASE_SENSITIVE,
indicating the case significance when comparing file specifications.
Default: 1
=cut
sub case_tolerant {
return 1 unless $^O eq 'cygwin'
and defined &Cygwin::mount_flags;
my $drive = shift;
if (! $drive) {
my @flags = split(/,/, Cygwin::mount_flags('/cygwin'));
my $prefix = pop(@flags);
if (! $prefix || $prefix eq 'cygdrive') {
$drive = '/cygdrive/c';
} elsif ($prefix eq '/') {
$drive = '/c';
} else {
$drive = "$prefix/c";
}
}
my $mntopts = Cygwin::mount_flags($drive);
if ($mntopts and ($mntopts =~ /,managed/)) {
return 0;
}
eval {
local @INC = @INC;
pop @INC if $INC[-1] eq '.';
require Win32API::File;
} or return 1;
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; }
}
=back
=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.
=cut
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package File::Spec::Epoc;
use strict;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
require File::Spec::Unix;
our @ISA = qw(File::Spec::Unix);
=head1 NAME
File::Spec::Epoc - methods for Epoc file specs
=head1 SYNOPSIS
require File::Spec::Epoc; # Done internally by File::Spec if needed
=head1 DESCRIPTION
See File::Spec::Unix for a documentation of the methods provided
there. This package overrides the implementation of these methods, not
the semantics.
This package is still a work in progress. ;-)
=cut
sub case_tolerant {
return 1;
}
=pod
=over 4
=item canonpath()
No physical check on the filesystem, but a logical cleanup of a
path. On UNIX eliminated successive slashes and successive "/.".
=back
=cut
sub canonpath {
my ($self,$path) = @_;
return unless defined $path;
$path =~ s|/+|/|g; # xx////xx -> xx/xx
$path =~ s|(/\.)+/|/|g; # xx/././xx -> xx/xx
$path =~ s|^(\./)+||s unless $path eq "./"; # ./xx -> xx
$path =~ s|^/(\.\./)+|/|s; # /../../xx -> xx
$path =~ s|/\Z(?!\n)|| unless $path eq "/"; # xx/ -> xx
return $path;
}
=pod
=head1 AUTHOR
o.flebbe@gmx.de
=head1 COPYRIGHT
Copyright (c) 2004 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
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package File::Spec::Functions;
use File::Spec;
use strict;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT = qw(
canonpath
catdir
catfile
curdir
rootdir
updir
no_upwards
file_name_is_absolute
path
);
our @EXPORT_OK = qw(
devnull
tmpdir
splitpath
splitdir
catpath
abs2rel
rel2abs
case_tolerant
);
our %EXPORT_TAGS = ( ALL => [ @EXPORT_OK, @EXPORT ] );
require File::Spec::Unix;
my %udeps = (
canonpath => [],
catdir => [qw(canonpath)],
catfile => [qw(canonpath catdir)],
case_tolerant => [],
curdir => [],
devnull => [],
rootdir => [],
updir => [],
);
foreach my $meth (@EXPORT, @EXPORT_OK) {
my $sub = File::Spec->can($meth);
no strict 'refs';
if (exists($udeps{$meth}) && $sub == File::Spec::Unix->can($meth) &&
!(grep {
File::Spec->can($_) != File::Spec::Unix->can($_)
} @{$udeps{$meth}}) &&
defined(&{"File::Spec::Unix::_fn_$meth"})) {
*{$meth} = \&{"File::Spec::Unix::_fn_$meth"};
} else {
*{$meth} = sub {&$sub('File::Spec', @_)};
}
}
1;
__END__
=head1 NAME
File::Spec::Functions - portably perform operations on file names
=head1 SYNOPSIS
use File::Spec::Functions;
my $x = catfile('a', 'b');
=head1 DESCRIPTION
This module exports convenience functions for all of the class methods
provided by File::Spec.
For a reference of available functions, 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>.
=head2 Exports
The following functions are exported by default.
canonpath
catdir
catfile
curdir
rootdir
updir
no_upwards
file_name_is_absolute
path
The following functions are exported only by request.
devnull
tmpdir
splitpath
splitdir
catpath
abs2rel
rel2abs
case_tolerant
All the functions may be imported using the C<:ALL> tag.
=head1 COPYRIGHT
Copyright (c) 2004 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
File::Spec, File::Spec::Unix, File::Spec::Mac, File::Spec::OS2,
File::Spec::Win32, File::Spec::VMS, ExtUtils::MakeMaker
=cut

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package File::Spec::Mac;
use strict;
use Cwd ();
require File::Spec::Unix;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
our @ISA = qw(File::Spec::Unix);
sub case_tolerant { 1 }
=head1 NAME
File::Spec::Mac - File::Spec for Mac OS (Classic)
=head1 SYNOPSIS
require File::Spec::Mac; # Done internally by File::Spec if needed
=head1 DESCRIPTION
Methods for manipulating file specifications.
=head1 METHODS
=over 2
=item canonpath
On Mac OS, there's nothing to be done. Returns what it's given.
=cut
sub canonpath {
my ($self,$path) = @_;
return $path;
}
=item catdir()
Concatenate two or more directory names to form a path separated by colons
(":") ending with a directory. Resulting paths are B<relative> by default,
but can be forced to be absolute (but avoid this, see below). Automatically
puts a trailing ":" on the end of the complete path, because that's what's
done in MacPerl's environment and helps to distinguish a file path from a
directory path.
B<IMPORTANT NOTE:> Beginning with version 1.3 of this module, the resulting
path is relative by default and I<not> absolute. This decision was made due
to portability reasons. Since C<File::Spec-E<gt>catdir()> returns relative paths
on all other operating systems, it will now also follow this convention on Mac
OS. Note that this may break some existing scripts.
The intended purpose of this routine is to concatenate I<directory names>.
But because of the nature of Macintosh paths, some additional possibilities
are allowed to make using this routine give reasonable results for some
common situations. In other words, you are also allowed to concatenate
I<paths> instead of directory names (strictly speaking, a string like ":a"
is a path, but not a name, since it contains a punctuation character ":").
So, beside calls like
catdir("a") = ":a:"
catdir("a","b") = ":a:b:"
catdir() = "" (special case)
calls like the following
catdir(":a:") = ":a:"
catdir(":a","b") = ":a:b:"
catdir(":a:","b") = ":a:b:"
catdir(":a:",":b:") = ":a:b:"
catdir(":") = ":"
are allowed.
Here are the rules that are used in C<catdir()>; note that we try to be as
compatible as possible to Unix:
=over 2
=item 1.
The resulting path is relative by default, i.e. the resulting path will have a
leading colon.
=item 2.
A trailing colon is added automatically to the resulting path, to denote a
directory.
=item 3.
Generally, each argument has one leading ":" and one trailing ":"
removed (if any). They are then joined together by a ":". Special
treatment applies for arguments denoting updir paths like "::lib:",
see (4), or arguments consisting solely of colons ("colon paths"),
see (5).
=item 4.
When an updir path like ":::lib::" is passed as argument, the number
of directories to climb up is handled correctly, not removing leading
or trailing colons when necessary. E.g.
catdir(":::a","::b","c") = ":::a::b:c:"
catdir(":::a::","::b","c") = ":::a:::b:c:"
=item 5.
Adding a colon ":" or empty string "" to a path at I<any> position
doesn't alter the path, i.e. these arguments are ignored. (When a ""
is passed as the first argument, it has a special meaning, see
(6)). This way, a colon ":" is handled like a "." (curdir) on Unix,
while an empty string "" is generally ignored (see
L<File::Spec::Unix/canonpath()> ). Likewise, a "::" is handled like a ".."
(updir), and a ":::" is handled like a "../.." etc. E.g.
catdir("a",":",":","b") = ":a:b:"
catdir("a",":","::",":b") = ":a::b:"
=item 6.
If the first argument is an empty string "" or is a volume name, i.e. matches
the pattern /^[^:]+:/, the resulting path is B<absolute>.
=item 7.
Passing an empty string "" as the first argument to C<catdir()> is
like passingC<File::Spec-E<gt>rootdir()> as the first argument, i.e.
catdir("","a","b") is the same as
catdir(rootdir(),"a","b").
This is true on Unix, where C<catdir("","a","b")> yields "/a/b" and
C<rootdir()> is "/". Note that C<rootdir()> on Mac OS is the startup
volume, which is the closest in concept to Unix' "/". This should help
to run existing scripts originally written for Unix.
=item 8.
For absolute paths, some cleanup is done, to ensure that the volume
name isn't immediately followed by updirs. This is invalid, because
this would go beyond "root". Generally, these cases are handled like
their Unix counterparts:
Unix:
Unix->catdir("","") = "/"
Unix->catdir("",".") = "/"
Unix->catdir("","..") = "/" # can't go
# beyond root
Unix->catdir("",".","..","..","a") = "/a"
Mac:
Mac->catdir("","") = rootdir() # (e.g. "HD:")
Mac->catdir("",":") = rootdir()
Mac->catdir("","::") = rootdir() # can't go
# beyond root
Mac->catdir("",":","::","::","a") = rootdir() . "a:"
# (e.g. "HD:a:")
However, this approach is limited to the first arguments following
"root" (again, see L<File::Spec::Unix/canonpath()>. If there are more
arguments that move up the directory tree, an invalid path going
beyond root can be created.
=back
As you've seen, you can force C<catdir()> to create an absolute path
by passing either an empty string or a path that begins with a volume
name as the first argument. However, you are strongly encouraged not
to do so, since this is done only for backward compatibility. Newer
versions of File::Spec come with a method called C<catpath()> (see
below), that is designed to offer a portable solution for the creation
of absolute paths. It takes volume, directory and file portions and
returns an entire path. While C<catdir()> is still suitable for the
concatenation of I<directory names>, you are encouraged to use
C<catpath()> to concatenate I<volume names> and I<directory
paths>. E.g.
$dir = File::Spec->catdir("tmp","sources");
$abs_path = File::Spec->catpath("MacintoshHD:", $dir,"");
yields
"MacintoshHD:tmp:sources:" .
=cut
sub catdir {
my $self = shift;
return '' unless @_;
my @args = @_;
my $first_arg;
my $relative;
# take care of the first argument
if ($args[0] eq '') { # absolute path, rootdir
shift @args;
$relative = 0;
$first_arg = $self->rootdir;
} elsif ($args[0] =~ /^[^:]+:/) { # absolute path, volume name
$relative = 0;
$first_arg = shift @args;
# add a trailing ':' if need be (may be it's a path like HD:dir)
$first_arg = "$first_arg:" unless ($first_arg =~ /:\Z(?!\n)/);
} else { # relative path
$relative = 1;
if ( $args[0] =~ /^::+\Z(?!\n)/ ) {
# updir colon path ('::', ':::' etc.), don't shift
$first_arg = ':';
} elsif ($args[0] eq ':') {
$first_arg = shift @args;
} else {
# add a trailing ':' if need be
$first_arg = shift @args;
$first_arg = "$first_arg:" unless ($first_arg =~ /:\Z(?!\n)/);
}
}
# For all other arguments,
# (a) ignore arguments that equal ':' or '',
# (b) handle updir paths specially:
# '::' -> concatenate '::'
# '::' . '::' -> concatenate ':::' etc.
# (c) add a trailing ':' if need be
my $result = $first_arg;
while (@args) {
my $arg = shift @args;
unless (($arg eq '') || ($arg eq ':')) {
if ($arg =~ /^::+\Z(?!\n)/ ) { # updir colon path like ':::'
my $updir_count = length($arg) - 1;
while ((@args) && ($args[0] =~ /^::+\Z(?!\n)/) ) { # while updir colon path
$arg = shift @args;
$updir_count += (length($arg) - 1);
}
$arg = (':' x $updir_count);
} else {
$arg =~ s/^://s; # remove a leading ':' if any
$arg = "$arg:" unless ($arg =~ /:\Z(?!\n)/); # ensure trailing ':'
}
$result .= $arg;
}#unless
}
if ( ($relative) && ($result !~ /^:/) ) {
# add a leading colon if need be
$result = ":$result";
}
unless ($relative) {
# remove updirs immediately following the volume name
$result =~ s/([^:]+:)(:*)(.*)\Z(?!\n)/$1$3/;
}
return $result;
}
=item catfile
Concatenate one or more directory names and a filename to form a
complete path ending with a filename. Resulting paths are B<relative>
by default, but can be forced to be absolute (but avoid this).
B<IMPORTANT NOTE:> Beginning with version 1.3 of this module, the
resulting path is relative by default and I<not> absolute. This
decision was made due to portability reasons. Since
C<File::Spec-E<gt>catfile()> returns relative paths on all other
operating systems, it will now also follow this convention on Mac OS.
Note that this may break some existing scripts.
The last argument is always considered to be the file portion. Since
C<catfile()> uses C<catdir()> (see above) for the concatenation of the
directory portions (if any), the following with regard to relative and
absolute paths is true:
catfile("") = ""
catfile("file") = "file"
but
catfile("","") = rootdir() # (e.g. "HD:")
catfile("","file") = rootdir() . file # (e.g. "HD:file")
catfile("HD:","file") = "HD:file"
This means that C<catdir()> is called only when there are two or more
arguments, as one might expect.
Note that the leading ":" is removed from the filename, so that
catfile("a","b","file") = ":a:b:file" and
catfile("a","b",":file") = ":a:b:file"
give the same answer.
To concatenate I<volume names>, I<directory paths> and I<filenames>,
you are encouraged to use C<catpath()> (see below).
=cut
sub catfile {
my $self = shift;
return '' unless @_;
my $file = pop @_;
return $file unless @_;
my $dir = $self->catdir(@_);
$file =~ s/^://s;
return $dir.$file;
}
=item curdir
Returns a string representing the current directory. On Mac OS, this is ":".
=cut
sub curdir {
return ":";
}
=item devnull
Returns a string representing the null device. On Mac OS, this is "Dev:Null".
=cut
sub devnull {
return "Dev:Null";
}
=item rootdir
Returns the empty string. Mac OS has no real root directory.
=cut
sub rootdir { '' }
=item tmpdir
Returns the contents of $ENV{TMPDIR}, if that directory exits or the
current working directory otherwise. Under MacPerl, $ENV{TMPDIR} will
contain a path like "MacintoshHD:Temporary Items:", which is a hidden
directory on your startup volume.
=cut
sub tmpdir {
my $cached = $_[0]->_cached_tmpdir('TMPDIR');
return $cached if defined $cached;
$_[0]->_cache_tmpdir($_[0]->_tmpdir( $ENV{TMPDIR} ), 'TMPDIR');
}
=item updir
Returns a string representing the parent directory. On Mac OS, this is "::".
=cut
sub updir {
return "::";
}
=item file_name_is_absolute
Takes as argument a path and returns true, if it is an absolute path.
If the path has a leading ":", it's a relative path. Otherwise, it's an
absolute path, unless the path doesn't contain any colons, i.e. it's a name
like "a". In this particular case, the path is considered to be relative
(i.e. it is considered to be a filename). Use ":" in the appropriate place
in the path if you want to distinguish unambiguously. As a special case,
the filename '' is always considered to be absolute. Note that with version
1.2 of File::Spec::Mac, this does no longer consult the local filesystem.
E.g.
File::Spec->file_name_is_absolute("a"); # false (relative)
File::Spec->file_name_is_absolute(":a:b:"); # false (relative)
File::Spec->file_name_is_absolute("MacintoshHD:");
# true (absolute)
File::Spec->file_name_is_absolute(""); # true (absolute)
=cut
sub file_name_is_absolute {
my ($self,$file) = @_;
if ($file =~ /:/) {
return (! ($file =~ m/^:/s) );
} elsif ( $file eq '' ) {
return 1 ;
} else {
return 0; # i.e. a file like "a"
}
}
=item path
Returns the null list for the MacPerl application, since the concept is
usually meaningless under Mac OS. But if you're using the MacPerl tool under
MPW, it gives back $ENV{Commands} suitably split, as is done in
:lib:ExtUtils:MM_Mac.pm.
=cut
sub path {
#
# The concept is meaningless under the MacPerl application.
# Under MPW, it has a meaning.
#
return unless exists $ENV{Commands};
return split(/,/, $ENV{Commands});
}
=item splitpath
($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.
On Mac OS, assumes that the last part of the path is a filename unless
$no_file is true or a trailing separator ":" is present.
The volume portion is always returned with a trailing ":". The directory portion
is always returned with a leading (to denote a relative path) and a trailing ":"
(to denote a directory). The file portion is always returned I<without> a leading ":".
Empty portions are returned as empty string ''.
The results can be passed to C<catpath()> to get back a path equivalent to
(usually identical to) the original path.
=cut
sub splitpath {
my ($self,$path, $nofile) = @_;
my ($volume,$directory,$file);
if ( $nofile ) {
( $volume, $directory ) = $path =~ m|^((?:[^:]+:)?)(.*)|s;
}
else {
$path =~
m|^( (?: [^:]+: )? )
( (?: .*: )? )
( .* )
|xs;
$volume = $1;
$directory = $2;
$file = $3;
}
$volume = '' unless defined($volume);
$directory = ":$directory" if ( $volume && $directory ); # take care of "HD::dir"
if ($directory) {
# Make sure non-empty directories begin and end in ':'
$directory .= ':' unless (substr($directory,-1) eq ':');
$directory = ":$directory" unless (substr($directory,0,1) eq ':');
} else {
$directory = '';
}
$file = '' unless defined($file);
return ($volume,$directory,$file);
}
=item splitdir
The opposite of C<catdir()>.
@dirs = File::Spec->splitdir( $directories );
$directories should be only the directory portion of the path on systems
that have the concept of a volume or that have path syntax that differentiates
files from directories. Consider using C<splitpath()> otherwise.
Unlike just splitting the directories on the separator, empty directory names
(C<"">) can be returned. Since C<catdir()> on Mac OS always appends a trailing
colon to distinguish a directory path from a file path, a single trailing colon
will be ignored, i.e. there's no empty directory name after it.
Hence, on Mac OS, both
File::Spec->splitdir( ":a:b::c:" ); and
File::Spec->splitdir( ":a:b::c" );
yield:
( "a", "b", "::", "c")
while
File::Spec->splitdir( ":a:b::c::" );
yields:
( "a", "b", "::", "c", "::")
=cut
sub splitdir {
my ($self, $path) = @_;
my @result = ();
my ($head, $sep, $tail, $volume, $directories);
return @result if ( (!defined($path)) || ($path eq '') );
return (':') if ($path eq ':');
( $volume, $sep, $directories ) = $path =~ m|^((?:[^:]+:)?)(:*)(.*)|s;
# deprecated, but handle it correctly
if ($volume) {
push (@result, $volume);
$sep .= ':';
}
while ($sep || $directories) {
if (length($sep) > 1) {
my $updir_count = length($sep) - 1;
for (my $i=0; $i<$updir_count; $i++) {
# push '::' updir_count times;
# simulate Unix '..' updirs
push (@result, '::');
}
}
$sep = '';
if ($directories) {
( $head, $sep, $tail ) = $directories =~ m|^((?:[^:]+)?)(:*)(.*)|s;
push (@result, $head);
$directories = $tail;
}
}
return @result;
}
=item catpath
$path = File::Spec->catpath($volume,$directory,$file);
Takes volume, directory and file portions and returns an entire path. On Mac OS,
$volume, $directory and $file are concatenated. A ':' is inserted if need be. You
may pass an empty string for each portion. If all portions are empty, the empty
string is returned. If $volume is empty, the result will be a relative path,
beginning with a ':'. If $volume and $directory are empty, a leading ":" (if any)
is removed form $file and the remainder is returned. If $file is empty, the
resulting path will have a trailing ':'.
=cut
sub catpath {
my ($self,$volume,$directory,$file) = @_;
if ( (! $volume) && (! $directory) ) {
$file =~ s/^:// if $file;
return $file ;
}
# We look for a volume in $volume, then in $directory, but not both
my ($dir_volume, $dir_dirs) = $self->splitpath($directory, 1);
$volume = $dir_volume unless length $volume;
my $path = $volume; # may be ''
$path .= ':' unless (substr($path, -1) eq ':'); # ensure trailing ':'
if ($directory) {
$directory = $dir_dirs if $volume;
$directory =~ s/^://; # remove leading ':' if any
$path .= $directory;
$path .= ':' unless (substr($path, -1) eq ':'); # ensure trailing ':'
}
if ($file) {
$file =~ s/^://; # remove leading ':' if any
$path .= $file;
}
return $path;
}
=item abs2rel
Takes a destination path and an optional base path and 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 ) ;
Note that both paths are assumed to have a notation that distinguishes a
directory path (with trailing ':') from a file path (without trailing ':').
If $base is not present or '', then the current working directory is used.
If $base is relative, then it is converted to absolute form using C<rel2abs()>.
This means that it is taken to be relative to the current working directory.
If $path and $base appear to be on two different volumes, we will not
attempt to resolve the two paths, and we will instead simply return
$path. Note that previous versions of this module ignored the volume
of $base, which resulted in garbage results part of the time.
If $base doesn't have a trailing colon, the last element of $base is
assumed to be a filename. This filename is ignored. Otherwise all path
components are assumed to be directories.
If $path is relative, it is converted to absolute form using C<rel2abs()>.
This means that it is taken to be relative to the current working directory.
Based on code written by Shigio Yamaguchi.
=cut
# maybe this should be done in canonpath() ?
sub _resolve_updirs {
my $path = shift @_;
my $proceed;
# resolve any updirs, e.g. "HD:tmp::file" -> "HD:file"
do {
$proceed = ($path =~ s/^(.*):[^:]+::(.*?)\z/$1:$2/);
} while ($proceed);
return $path;
}
sub abs2rel {
my($self,$path,$base) = @_;
# Clean up $path
if ( ! $self->file_name_is_absolute( $path ) ) {
$path = $self->rel2abs( $path ) ;
}
# Figure out the effective $base and clean it up.
if ( !defined( $base ) || $base eq '' ) {
$base = Cwd::getcwd();
}
elsif ( ! $self->file_name_is_absolute( $base ) ) {
$base = $self->rel2abs( $base ) ;
$base = _resolve_updirs( $base ); # resolve updirs in $base
}
else {
$base = _resolve_updirs( $base );
}
# Split up paths - ignore $base's file
my ( $path_vol, $path_dirs, $path_file ) = $self->splitpath( $path );
my ( $base_vol, $base_dirs ) = $self->splitpath( $base );
return $path unless lc( $path_vol ) eq lc( $base_vol );
# Now, remove all leading components that are the same
my @pathchunks = $self->splitdir( $path_dirs );
my @basechunks = $self->splitdir( $base_dirs );
while ( @pathchunks &&
@basechunks &&
lc( $pathchunks[0] ) eq lc( $basechunks[0] ) ) {
shift @pathchunks ;
shift @basechunks ;
}
# @pathchunks now has the directories to descend in to.
# ensure relative path, even if @pathchunks is empty
$path_dirs = $self->catdir( ':', @pathchunks );
# @basechunks now contains the number of directories to climb out of.
$base_dirs = (':' x @basechunks) . ':' ;
return $self->catpath( '', $self->catdir( $base_dirs, $path_dirs ), $path_file ) ;
}
=item rel2abs
Converts a relative path to an absolute path:
$abs_path = File::Spec->rel2abs( $path ) ;
$abs_path = File::Spec->rel2abs( $path, $base ) ;
Note that both paths are assumed to have a notation that distinguishes a
directory path (with trailing ':') from a file path (without trailing ':').
If $base is not present or '', then $base is set to the current working
directory. If $base is relative, then it is converted to absolute form
using C<rel2abs()>. This means that it is taken to be relative to the
current working directory.
If $base doesn't have a trailing colon, the last element of $base is
assumed to be a filename. This filename is ignored. Otherwise all path
components are assumed to be directories.
If $path is already absolute, it is returned and $base is ignored.
Based on code written by Shigio Yamaguchi.
=cut
sub rel2abs {
my ($self,$path,$base) = @_;
if ( ! $self->file_name_is_absolute($path) ) {
# Figure out the effective $base and clean it up.
if ( !defined( $base ) || $base eq '' ) {
$base = Cwd::getcwd();
}
elsif ( ! $self->file_name_is_absolute($base) ) {
$base = $self->rel2abs($base) ;
}
# Split up paths
# ignore $path's volume
my ( $path_dirs, $path_file ) = ($self->splitpath($path))[1,2] ;
# ignore $base's file part
my ( $base_vol, $base_dirs ) = $self->splitpath($base) ;
# Glom them together
$path_dirs = ':' if ($path_dirs eq '');
$base_dirs =~ s/:$//; # remove trailing ':', if any
$base_dirs = $base_dirs . $path_dirs;
$path = $self->catpath( $base_vol, $base_dirs, $path_file );
}
return $path;
}
=back
=head1 AUTHORS
See the authors list in I<File::Spec>. Mac OS support by Paul Schinder
<schinder@pobox.com> and Thomas Wegner <wegner_thomas@yahoo.com>.
=head1 COPYRIGHT
Copyright (c) 2004 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
1;

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package File::Spec::OS2;
use strict;
use Cwd ();
require File::Spec::Unix;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
our @ISA = qw(File::Spec::Unix);
sub devnull {
return "/dev/nul";
}
sub case_tolerant {
return 1;
}
sub file_name_is_absolute {
my ($self,$file) = @_;
return scalar($file =~ m{^([a-z]:)?[\\/]}is);
}
sub path {
my $path = $ENV{PATH};
$path =~ s:\\:/:g;
my @path = split(';',$path);
foreach (@path) { $_ = '.' if $_ eq '' }
return @path;
}
sub tmpdir {
my $cached = $_[0]->_cached_tmpdir(qw 'TMPDIR TEMP TMP');
return $cached if defined $cached;
my @d = @ENV{qw(TMPDIR TEMP TMP)}; # function call could autovivivy
$_[0]->_cache_tmpdir(
$_[0]->_tmpdir( @d, '/tmp', '/' ), qw 'TMPDIR TEMP TMP'
);
}
sub catdir {
my $self = shift;
my @args = @_;
foreach (@args) {
tr[\\][/];
# append a backslash to each argument unless it has one there
$_ .= "/" unless m{/$};
}
return $self->canonpath(join('', @args));
}
sub canonpath {
my ($self,$path) = @_;
return unless defined $path;
$path =~ s/^([a-z]:)/\l$1/s;
$path =~ s|\\|/|g;
$path =~ s|([^/])/+|$1/|g; # xx////xx -> xx/xx
$path =~ s|(/\.)+/|/|g; # xx/././xx -> xx/xx
$path =~ s|^(\./)+(?=[^/])||s; # ./xx -> xx
$path =~ s|/\Z(?!\n)||
unless $path =~ m#^([a-z]:)?/\Z(?!\n)#si;# xx/ -> xx
$path =~ s{^/\.\.$}{/}; # /.. -> /
1 while $path =~ s{^/\.\.}{}; # /../xx -> /xx
return $path;
}
sub splitpath {
my ($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);
}
sub splitdir {
my ($self,$directories) = @_ ;
split m|[\\/]|, $directories, -1;
}
sub catpath {
my ($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::getcwd();
} elsif ( ! $self->file_name_is_absolute( $base ) ) {
$base = $self->rel2abs( $base ) ;
} else {
$base = $self->canonpath( $base ) ;
}
# Split up paths
my ( $path_volume, $path_directories, $path_file ) = $self->splitpath( $path, 1 ) ;
my ( $base_volume, $base_directories ) = $self->splitpath( $base, 1 ) ;
return $path unless $path_volume eq $base_volume;
# 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::getcwd();
}
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 ) ;
}
1;
__END__
=head1 NAME
File::Spec::OS2 - methods for OS/2 file specs
=head1 SYNOPSIS
require File::Spec::OS2; # Done internally by File::Spec if needed
=head1 DESCRIPTION
See L<File::Spec> and L<File::Spec::Unix>. This package overrides the
implementation of these methods, not the semantics.
Amongst the changes made for OS/2 are...
=over 4
=item tmpdir
Modifies the list of places temp directory information is looked for.
$ENV{TMPDIR}
$ENV{TEMP}
$ENV{TMP}
/tmp
/
=item splitpath
Volumes can be drive letters or UNC sharenames (\\server\share).
=back
=head1 COPYRIGHT
Copyright (c) 2004 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.
=cut

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package File::Spec::Unix;
use strict;
use Cwd ();
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
=head1 NAME
File::Spec::Unix - File::Spec for Unix, base for other File::Spec modules
=head1 SYNOPSIS
require File::Spec::Unix; # Done automatically by File::Spec
=head1 DESCRIPTION
Methods for manipulating file specifications. Other File::Spec
modules, such as File::Spec::Mac, inherit from File::Spec::Unix and
override specific methods.
=head1 METHODS
=over 2
=item canonpath()
No physical check on the filesystem, but a logical cleanup of a
path. On UNIX eliminates successive slashes and successive "/.".
$cpath = File::Spec->canonpath( $path ) ;
Note that this does *not* collapse F<x/../y> sections into F<y>. This
is by design. If F</foo> on your system is a symlink to F</bar/baz>,
then F</foo/../quux> is actually F</bar/quux>, not F</quux> as a naive
F<../>-removal would give you. If you want to do this kind of
processing, you probably want C<Cwd>'s C<realpath()> function to
actually traverse the filesystem cleaning up paths like this.
=cut
sub _pp_canonpath {
my ($self,$path) = @_;
return unless defined $path;
# Handle POSIX-style node names beginning with double slash (qnx, nto)
# (POSIX says: "a pathname that begins with two successive slashes
# may be interpreted in an implementation-defined manner, although
# more than two leading slashes shall be treated as a single slash.")
my $node = '';
my $double_slashes_special = $^O eq 'qnx' || $^O eq 'nto';
if ( $double_slashes_special
&& ( $path =~ s{^(//[^/]+)/?\z}{}s || $path =~ s{^(//[^/]+)/}{/}s ) ) {
$node = $1;
}
# This used to be
# $path =~ s|/+|/|g unless ($^O eq 'cygwin');
# but that made tests 29, 30, 35, 46, and 213 (as of #13272) to fail
# (Mainly because trailing "" directories didn't get stripped).
# Why would cygwin avoid collapsing multiple slashes into one? --jhi
$path =~ s|/{2,}|/|g; # xx////xx -> xx/xx
$path =~ s{(?:/\.)+(?:/|\z)}{/}g; # xx/././xx -> xx/xx
$path =~ s|^(?:\./)+||s unless $path eq "./"; # ./xx -> xx
$path =~ s|^/(?:\.\./)+|/|; # /../../xx -> xx
$path =~ s|^/\.\.$|/|; # /.. -> /
$path =~ s|/\z|| unless $path eq "/"; # xx/ -> xx
return "$node$path";
}
*canonpath = \&_pp_canonpath unless defined &canonpath;
=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 :-)
=cut
sub _pp_catdir {
my $self = shift;
$self->canonpath(join('/', @_, '')); # '' because need a trailing '/'
}
*catdir = \&_pp_catdir unless defined &catdir;
=item catfile
Concatenate one or more directory names and a filename to form a
complete path ending with a filename
=cut
sub _pp_catfile {
my $self = shift;
my $file = $self->canonpath(pop @_);
return $file unless @_;
my $dir = $self->catdir(@_);
$dir .= "/" unless substr($dir,-1) eq "/";
return $dir.$file;
}
*catfile = \&_pp_catfile unless defined &catfile;
=item curdir
Returns a string representation of the current directory. "." on UNIX.
=cut
sub curdir { '.' }
use constant _fn_curdir => ".";
=item devnull
Returns a string representation of the null device. "/dev/null" on UNIX.
=cut
sub devnull { '/dev/null' }
use constant _fn_devnull => "/dev/null";
=item rootdir
Returns a string representation of the root directory. "/" on UNIX.
=cut
sub rootdir { '/' }
use constant _fn_rootdir => "/";
=item tmpdir
Returns a string representation of the first writable directory from
the following list or the current directory if none from the list are
writable:
$ENV{TMPDIR}
/tmp
If running under taint mode, and if $ENV{TMPDIR}
is tainted, it is not used.
=cut
my ($tmpdir, %tmpenv);
# Cache and return the calculated tmpdir, recording which env vars
# determined it.
sub _cache_tmpdir {
@tmpenv{@_[2..$#_]} = @ENV{@_[2..$#_]};
return $tmpdir = $_[1];
}
# Retrieve the cached tmpdir, checking first whether relevant env vars have
# changed and invalidated the cache.
sub _cached_tmpdir {
shift;
local $^W;
return if grep $ENV{$_} ne $tmpenv{$_}, @_;
return $tmpdir;
}
sub _tmpdir {
my $self = shift;
my @dirlist = @_;
my $taint = do { no strict 'refs'; ${"\cTAINT"} };
if ($taint) { # Check for taint mode on perl >= 5.8.0
require Scalar::Util;
@dirlist = grep { ! Scalar::Util::tainted($_) } @dirlist;
}
elsif ($] < 5.007) { # No ${^TAINT} before 5.8
@dirlist = grep { !defined($_) || eval { eval('1'.substr $_,0,0) } }
@dirlist;
}
foreach (@dirlist) {
next unless defined && -d && -w _;
$tmpdir = $_;
last;
}
$tmpdir = $self->curdir unless defined $tmpdir;
$tmpdir = defined $tmpdir && $self->canonpath($tmpdir);
if ( !$self->file_name_is_absolute($tmpdir) ) {
# See [perl #120593] for the full details
# If possible, return a full path, rather than '.' or 'lib', but
# jump through some hoops to avoid returning a tainted value.
($tmpdir) = grep {
$taint ? ! Scalar::Util::tainted($_) :
$] < 5.007 ? eval { eval('1'.substr $_,0,0) } : 1
} $self->rel2abs($tmpdir), $tmpdir;
}
return $tmpdir;
}
sub tmpdir {
my $cached = $_[0]->_cached_tmpdir('TMPDIR');
return $cached if defined $cached;
$_[0]->_cache_tmpdir($_[0]->_tmpdir( $ENV{TMPDIR}, "/tmp" ), 'TMPDIR');
}
=item updir
Returns a string representation of the parent directory. ".." on UNIX.
=cut
sub updir { '..' }
use constant _fn_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.)
=cut
sub no_upwards {
my $self = shift;
return grep(!/^\.{1,2}\z/s, @_);
}
=item case_tolerant
Returns a true or false value indicating, respectively, that alphabetic
is not or is significant when comparing file specifications.
=cut
sub case_tolerant { 0 }
use constant _fn_case_tolerant => 0;
=item file_name_is_absolute
Takes as argument a path and returns true if it is an absolute path.
This does not consult the local filesystem on Unix, Win32, OS/2 or Mac
OS (Classic). It does consult the working environment for VMS (see
L<File::Spec::VMS/file_name_is_absolute>).
=cut
sub file_name_is_absolute {
my ($self,$file) = @_;
return scalar($file =~ m:^/:s);
}
=item path
Takes no argument, returns the environment variable PATH as an array.
=cut
sub path {
return () unless exists $ENV{PATH};
my @path = split(':', $ENV{PATH});
foreach (@path) { $_ = '.' if $_ eq '' }
return @path;
}
=item join
join is the same as catfile.
=cut
sub join {
my $self = shift;
return $self->catfile(@_);
}
=item splitpath
($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. On systems
with no concept of volume, returns '' for volume.
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 ( '', $path, '' ).
The directory portion may or may not be returned with a trailing '/'.
The results can be passed to L</catpath()> to get back a path equivalent to
(usually identical to) the original path.
=cut
sub splitpath {
my ($self,$path, $nofile) = @_;
my ($volume,$directory,$file) = ('','','');
if ( $nofile ) {
$directory = $path;
}
else {
$path =~ m|^ ( (?: .* / (?: \.\.?\z )? )? ) ([^/]*) |xs;
$directory = $1;
$file = $2;
}
return ($volume,$directory,$file);
}
=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.
On Unix,
File::Spec->splitdir( "/a/b//c/" );
Yields:
( '', 'a', 'b', '', 'c', '' )
=cut
sub splitdir {
return split m|/|, $_[1], -1; # Preserve trailing fields
}
=item catpath()
Takes volume, directory and file portions and returns an entire path. Under
Unix, $volume is ignored, and directory and file are concatenated. A '/' is
inserted if needed (though if the directory portion doesn't start with
'/' it is not added). On other OSs, $volume is significant.
=cut
sub catpath {
my ($self,$volume,$directory,$file) = @_;
if ( $directory ne '' &&
$file ne '' &&
substr( $directory, -1 ) ne '/' &&
substr( $file, 0, 1 ) ne '/'
) {
$directory .= "/$file" ;
}
else {
$directory .= $file ;
}
return $directory ;
}
=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()|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()|Cwd>.
On systems that have a grammar that indicates filenames, this ignores the
$base filename. Otherwise all path components are assumed to be
directories.
If $path is relative, it is converted to absolute form using L</rel2abs()>.
This means that it is taken to be relative to L<cwd()|Cwd>.
No checks against the filesystem are made, so the result may not be correct if
C<$base> contains symbolic links. (Apply
L<Cwd::abs_path()|Cwd/abs_path> beforehand if that
is a concern.) On VMS, there is interaction with the working environment, as
logicals and macros are expanded.
Based on code written by Shigio Yamaguchi.
=cut
sub abs2rel {
my($self,$path,$base) = @_;
$base = Cwd::getcwd() unless defined $base and length $base;
($path, $base) = map $self->canonpath($_), $path, $base;
my $path_directories;
my $base_directories;
if (grep $self->file_name_is_absolute($_), $path, $base) {
($path, $base) = map $self->rel2abs($_), $path, $base;
my ($path_volume) = $self->splitpath($path, 1);
my ($base_volume) = $self->splitpath($base, 1);
# Can't relativize across volumes
return $path unless $path_volume eq $base_volume;
$path_directories = ($self->splitpath($path, 1))[1];
$base_directories = ($self->splitpath($base, 1))[1];
# For UNC paths, the user might give a volume like //foo/bar that
# strictly speaking has no directory portion. Treat it as if it
# had the root directory for that volume.
if (!length($base_directories) and $self->file_name_is_absolute($base)) {
$base_directories = $self->rootdir;
}
}
else {
my $wd= ($self->splitpath(Cwd::getcwd(), 1))[1];
$path_directories = $self->catdir($wd, $path);
$base_directories = $self->catdir($wd, $base);
}
# Now, remove all leading components that are the same
my @pathchunks = $self->splitdir( $path_directories );
my @basechunks = $self->splitdir( $base_directories );
if ($base_directories eq $self->rootdir) {
return $self->curdir if $path_directories eq $self->rootdir;
shift @pathchunks;
return $self->canonpath( $self->catpath('', $self->catdir( @pathchunks ), '') );
}
my @common;
while (@pathchunks && @basechunks && $self->_same($pathchunks[0], $basechunks[0])) {
push @common, shift @pathchunks ;
shift @basechunks ;
}
return $self->curdir unless @pathchunks || @basechunks;
# @basechunks now contains the directories the resulting relative path
# must ascend out of before it can descend to $path_directory. If there
# are updir components, we must descend into the corresponding directories
# (this only works if they are no symlinks).
my @reverse_base;
while( defined(my $dir= shift @basechunks) ) {
if( $dir ne $self->updir ) {
unshift @reverse_base, $self->updir;
push @common, $dir;
}
elsif( @common ) {
if( @reverse_base && $reverse_base[0] eq $self->updir ) {
shift @reverse_base;
pop @common;
}
else {
unshift @reverse_base, pop @common;
}
}
}
my $result_dirs = $self->catdir( @reverse_base, @pathchunks );
return $self->canonpath( $self->catpath('', $result_dirs, '') );
}
sub _same {
$_[1] eq $_[2];
}
=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()|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()|Cwd>.
On systems that have a grammar that indicates filenames, this ignores
the $base filename. Otherwise all path components are assumed to be
directories.
If $path is absolute, it is cleaned up and returned using L</canonpath()>.
No checks against the filesystem are made. On VMS, there is
interaction with the working environment, as logicals and
macros are expanded.
Based on code written by Shigio Yamaguchi.
=cut
sub rel2abs {
my ($self,$path,$base ) = @_;
# Clean up $path
if ( ! $self->file_name_is_absolute( $path ) ) {
# Figure out the effective $base and clean it up.
if ( !defined( $base ) || $base eq '' ) {
$base = Cwd::getcwd();
}
elsif ( ! $self->file_name_is_absolute( $base ) ) {
$base = $self->rel2abs( $base ) ;
}
else {
$base = $self->canonpath( $base ) ;
}
# Glom them together
$path = $self->catdir( $base, $path ) ;
}
return $self->canonpath( $path ) ;
}
=back
=head1 COPYRIGHT
Copyright (c) 2004 by the Perl 5 Porters. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
Please submit bug reports at L<https://github.com/Perl/perl5/issues>.
=head1 SEE ALSO
L<File::Spec>
=cut
# Internal method to reduce xx\..\yy -> yy
sub _collapse {
my($fs, $path) = @_;
my $updir = $fs->updir;
my $curdir = $fs->curdir;
my($vol, $dirs, $file) = $fs->splitpath($path);
my @dirs = $fs->splitdir($dirs);
pop @dirs if @dirs && $dirs[-1] eq '';
my @collapsed;
foreach my $dir (@dirs) {
if( $dir eq $updir and # if we have an updir
@collapsed and # and something to collapse
length $collapsed[-1] and # and its not the rootdir
$collapsed[-1] ne $updir and # nor another updir
$collapsed[-1] ne $curdir # nor the curdir
)
{ # then
pop @collapsed; # collapse
}
else { # else
push @collapsed, $dir; # just hang onto it
}
}
return $fs->catpath($vol,
$fs->catdir(@collapsed),
$file
);
}
1;

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@ -0,0 +1,569 @@
package File::Spec::VMS;
use strict;
use Cwd ();
require File::Spec::Unix;
our $VERSION = '3.91';
$VERSION =~ tr/_//d;
our @ISA = qw(File::Spec::Unix);
use File::Basename;
use VMS::Filespec;
=head1 NAME
File::Spec::VMS - methods for VMS file specs
=head1 SYNOPSIS
require File::Spec::VMS; # Done internally by File::Spec if needed
=head1 DESCRIPTION
See File::Spec::Unix for a documentation of the methods provided
there. This package overrides the implementation of these methods, not
the semantics.
The default behavior is to allow either VMS or Unix syntax on input and to
return VMS syntax on output unless Unix syntax has been explicitly requested
via the C<DECC$FILENAME_UNIX_REPORT> CRTL feature.
=over 4
=cut
# Need to look up the feature settings. The preferred way is to use the
# VMS::Feature module, but that may not be available to dual life modules.
my $use_feature;
BEGIN {
if (eval { local $SIG{__DIE__};
local @INC = @INC;
pop @INC if $INC[-1] eq '.';
require VMS::Feature; }) {
$use_feature = 1;
}
}
# Need to look up the UNIX report mode. This may become a dynamic mode
# in the future.
sub _unix_rpt {
my $unix_rpt;
if ($use_feature) {
$unix_rpt = VMS::Feature::current("filename_unix_report");
} else {
my $env_unix_rpt = $ENV{'DECC$FILENAME_UNIX_REPORT'} || '';
$unix_rpt = $env_unix_rpt =~ /^[ET1]/i;
}
return $unix_rpt;
}
=item canonpath (override)
Removes redundant portions of file specifications and returns results
in native syntax unless Unix filename reporting has been enabled.
=cut
sub canonpath {
my($self,$path) = @_;
return undef unless defined $path;
my $unix_rpt = $self->_unix_rpt;
if ($path =~ m|/|) {
my $pathify = $path =~ m|/\Z(?!\n)|;
$path = $self->SUPER::canonpath($path);
return $path if $unix_rpt;
$path = $pathify ? vmspath($path) : vmsify($path);
}
$path =~ s/(?<!\^)</[/; # < and > ==> [ and ]
$path =~ s/(?<!\^)>/]/;
$path =~ s/(?<!\^)\]\[\./\.\]\[/g; # ][. ==> .][
$path =~ s/(?<!\^)\[000000\.\]\[/\[/g; # [000000.][ ==> [
$path =~ s/(?<!\^)\[000000\./\[/g; # [000000. ==> [
$path =~ s/(?<!\^)\.\]\[000000\]/\]/g; # .][000000] ==> ]
$path =~ s/(?<!\^)\.\]\[/\./g; # foo.][bar ==> foo.bar
1 while ($path =~ s/(?<!\^)([\[\.])(-+)\.(-+)([\.\]])/$1$2$3$4/);
# That loop does the following
# with any amount of dashes:
# .-.-. ==> .--.
# [-.-. ==> [--.
# .-.-] ==> .--]
# [-.-] ==> [--]
1 while ($path =~ s/(?<!\^)([\[\.])(?:\^.|[^\]\.])+\.-(-+)([\]\.])/$1$2$3/);
# That loop does the following
# with any amount (minimum 2)
# of dashes:
# .foo.--. ==> .-.
# .foo.--] ==> .-]
# [foo.--. ==> [-.
# [foo.--] ==> [-]
#
# And then, the remaining cases
$path =~ s/(?<!\^)\[\.-/[-/; # [.- ==> [-
$path =~ s/(?<!\^)\.(?:\^.|[^\]\.])+\.-\./\./g; # .foo.-. ==> .
$path =~ s/(?<!\^)\[(?:\^.|[^\]\.])+\.-\./\[/g; # [foo.-. ==> [
$path =~ s/(?<!\^)\.(?:\^.|[^\]\.])+\.-\]/\]/g; # .foo.-] ==> ]
# [foo.-] ==> [000000]
$path =~ s/(?<!\^)\[(?:\^.|[^\]\.])+\.-\]/\[000000\]/g;
# [] ==>
$path =~ s/(?<!\^)\[\]// unless $path eq '[]';
return $unix_rpt ? unixify($path) : $path;
}
=item catdir (override)
Concatenates a list of file specifications, and returns the result as a
native directory specification unless the Unix filename reporting feature
has been enabled. No check is made for "impossible" cases (e.g. elements
other than the first being absolute filespecs).
=cut
sub catdir {
my $self = shift;
my $dir = pop;
my $unix_rpt = $self->_unix_rpt;
my @dirs = grep {defined() && length()} @_;
my $rslt;
if (@dirs) {
my $path = (@dirs == 1 ? $dirs[0] : $self->catdir(@dirs));
my ($spath,$sdir) = ($path,$dir);
$spath =~ s/\.dir\Z(?!\n)//i; $sdir =~ s/\.dir\Z(?!\n)//i;
if ($unix_rpt) {
$spath = unixify($spath) unless $spath =~ m#/#;
$sdir= unixify($sdir) unless $sdir =~ m#/#;
return $self->SUPER::catdir($spath, $sdir)
}
$rslt = vmspath( unixify($spath) . '/' . unixify($sdir));
# Special case for VMS absolute directory specs: these will have
# had device prepended during trip through Unix syntax in
# eliminate_macros(), since Unix syntax has no way to express
# "absolute from the top of this device's directory tree".
if ($spath =~ /^[\[<][^.\-]/s) { $rslt =~ s/^[^\[<]+//s; }
} else {
# Single directory. Return an empty string on null input; otherwise
# just return a canonical path.
if (not defined $dir or not length $dir) {
$rslt = '';
} else {
$rslt = $unix_rpt ? $dir : vmspath($dir);
}
}
return $self->canonpath($rslt);
}
=item catfile (override)
Concatenates a list of directory specifications with a filename specification
to build a path.
=cut
sub catfile {
my $self = shift;
my $tfile = pop();
my $file = $self->canonpath($tfile);
my @files = grep {defined() && length()} @_;
my $unix_rpt = $self->_unix_rpt;
my $rslt;
if (@files) {
my $path = (@files == 1 ? $files[0] : $self->catdir(@files));
my $spath = $path;
# Something building a VMS path in pieces may try to pass a
# directory name in filename format, so normalize it.
$spath =~ s/\.dir\Z(?!\n)//i;
# If the spath ends with a directory delimiter and the file is bare,
# then just concatenate them.
if ($spath =~ /^(?<!\^)[^\)\]\/:>]+\)\Z(?!\n)/s && basename($file) eq $file) {
$rslt = "$spath$file";
} else {
$rslt = unixify($spath);
$rslt .= (defined($rslt) && length($rslt) ? '/' : '') . unixify($file);
$rslt = vmsify($rslt) unless $unix_rpt;
}
}
else {
# Only passed a single file?
my $xfile = (defined($file) && length($file)) ? $file : '';
$rslt = $unix_rpt ? $xfile : vmsify($xfile);
}
return $self->canonpath($rslt) unless $unix_rpt;
# In Unix report mode, do not strip off redundant path information.
return $rslt;
}
=item curdir (override)
Returns a string representation of the current directory: '[]' or '.'
=cut
sub curdir {
my $self = shift @_;
return '.' if ($self->_unix_rpt);
return '[]';
}
=item devnull (override)
Returns a string representation of the null device: '_NLA0:' or '/dev/null'
=cut
sub devnull {
my $self = shift @_;
return '/dev/null' if ($self->_unix_rpt);
return "_NLA0:";
}
=item rootdir (override)
Returns a string representation of the root directory: 'SYS$DISK:[000000]'
or '/'
=cut
sub rootdir {
my $self = shift @_;
if ($self->_unix_rpt) {
# Root may exist, try it first.
my $try = '/';
my ($dev1, $ino1) = stat('/');
my ($dev2, $ino2) = stat('.');
# Perl falls back to '.' if it can not determine '/'
if (($dev1 != $dev2) || ($ino1 != $ino2)) {
return $try;
}
# Fall back to UNIX format sys$disk.
return '/sys$disk/';
}
return 'SYS$DISK:[000000]';
}
=item tmpdir (override)
Returns a string representation of the first writable directory
from the following list or '' if none are writable:
/tmp if C<DECC$FILENAME_UNIX_REPORT> is enabled.
sys$scratch:
$ENV{TMPDIR}
If running under taint mode, and if $ENV{TMPDIR}
is tainted, it is not used.
=cut
sub tmpdir {
my $self = shift @_;
my $tmpdir = $self->_cached_tmpdir('TMPDIR');
return $tmpdir if defined $tmpdir;
if ($self->_unix_rpt) {
$tmpdir = $self->_tmpdir('/tmp', '/sys$scratch', $ENV{TMPDIR});
}
else {
$tmpdir = $self->_tmpdir( 'sys$scratch:', $ENV{TMPDIR} );
}
$self->_cache_tmpdir($tmpdir, 'TMPDIR');
}
=item updir (override)
Returns a string representation of the parent directory: '[-]' or '..'
=cut
sub updir {
my $self = shift @_;
return '..' if ($self->_unix_rpt);
return '[-]';
}
=item case_tolerant (override)
VMS file specification syntax is case-tolerant.
=cut
sub case_tolerant {
return 1;
}
=item path (override)
Translate logical name DCL$PATH as a searchlist, rather than trying
to C<split> string value of C<$ENV{'PATH'}>.
=cut
sub path {
my (@dirs,$dir,$i);
while ($dir = $ENV{'DCL$PATH;' . $i++}) { push(@dirs,$dir); }
return @dirs;
}
=item file_name_is_absolute (override)
Checks for VMS directory spec as well as Unix separators.
=cut
sub file_name_is_absolute {
my ($self,$file) = @_;
# If it's a logical name, expand it.
$file = $ENV{$file} while $file =~ /^[\w\$\-]+\Z(?!\n)/s && $ENV{$file};
return scalar($file =~ m!^/!s ||
$file =~ m![<\[][^.\-\]>]! ||
$file =~ /^[A-Za-z0-9_\$\-\~]+(?<!\^):/);
}
=item splitpath (override)
($volume,$directories,$file) = File::Spec->splitpath( $path );
($volume,$directories,$file) = File::Spec->splitpath( $path,
$no_file );
Passing a true value for C<$no_file> indicates that the path being
split only contains directory components, even on systems where you
can usually (when not supporting a foreign syntax) tell the difference
between directories and files at a glance.
=cut
sub splitpath {
my($self,$path, $nofile) = @_;
my($dev,$dir,$file) = ('','','');
my $vmsify_path = vmsify($path);
if ( $nofile ) {
#vmsify('d1/d2/d3') returns '[.d1.d2]d3'
#vmsify('/d1/d2/d3') returns 'd1:[d2]d3'
if( $vmsify_path =~ /(.*)\](.+)/ ){
$vmsify_path = $1.'.'.$2.']';
}
$vmsify_path =~ /(.+:)?(.*)/s;
$dir = defined $2 ? $2 : ''; # dir can be '0'
return ($1 || '',$dir,$file);
}
else {
$vmsify_path =~ /(.+:)?([\[<].*[\]>])?(.*)/s;
return ($1 || '',$2 || '',$3);
}
}
=item splitdir (override)
Split a directory specification into the components.
=cut
sub splitdir {
my($self,$dirspec) = @_;
my @dirs = ();
return @dirs if ( (!defined $dirspec) || ('' eq $dirspec) );
$dirspec =~ s/(?<!\^)</[/; # < and > ==> [ and ]
$dirspec =~ s/(?<!\^)>/]/;
$dirspec =~ s/(?<!\^)\]\[\./\.\]\[/g; # ][. ==> .][
$dirspec =~ s/(?<!\^)\[000000\.\]\[/\[/g; # [000000.][ ==> [
$dirspec =~ s/(?<!\^)\[000000\./\[/g; # [000000. ==> [
$dirspec =~ s/(?<!\^)\.\]\[000000\]/\]/g; # .][000000] ==> ]
$dirspec =~ s/(?<!\^)\.\]\[/\./g; # foo.][bar ==> foo.bar
while ($dirspec =~ s/(^|[\[\<\.])\-(\-+)($|[\]\>\.])/$1-.$2$3/g) {}
# That loop does the following
# with any amount of dashes:
# .--. ==> .-.-.
# [--. ==> [-.-.
# .--] ==> .-.-]
# [--] ==> [-.-]
$dirspec = "[$dirspec]" unless $dirspec =~ /(?<!\^)[\[<]/; # make legal
$dirspec =~ s/^(\[|<)\./$1/;
@dirs = split /(?<!\^)\./, vmspath($dirspec);
$dirs[0] =~ s/^[\[<]//s; $dirs[-1] =~ s/[\]>]\Z(?!\n)//s;
@dirs;
}
=item catpath (override)
Construct a complete filespec.
=cut
sub catpath {
my($self,$dev,$dir,$file) = @_;
# We look for a volume in $dev, then in $dir, but not both
my ($dir_volume, $dir_dir, $dir_file) = $self->splitpath($dir);
$dev = $dir_volume unless length $dev;
$dir = length $dir_file ? $self->catfile($dir_dir, $dir_file) : $dir_dir;
if ($dev =~ m|^(?<!\^)/+([^/]+)|) { $dev = "$1:"; }
else { $dev .= ':' unless $dev eq '' or $dev =~ /:\Z(?!\n)/; }
if (length($dev) or length($dir)) {
$dir = "[$dir]" unless $dir =~ /(?<!\^)[\[<\/]/;
$dir = vmspath($dir);
}
$dir = '' if length($dev) && ($dir eq '[]' || $dir eq '<>');
"$dev$dir$file";
}
=item abs2rel (override)
Attempt to convert an absolute file specification to a relative specification.
=cut
sub abs2rel {
my $self = shift;
my($path,$base) = @_;
$base = Cwd::getcwd() unless defined $base and length $base;
# If there is no device or directory syntax on $base, make sure it
# is treated as a directory.
$base = vmspath($base) unless $base =~ m{(?<!\^)[\[<:]};
for ($path, $base) { $_ = $self->rel2abs($_) }
# Are we even starting $path on the same (node::)device as $base? Note that
# logical paths or nodename differences may be on the "same device"
# but the comparison that ignores device differences so as to concatenate
# [---] up directory specs is not even a good idea in cases where there is
# a logical path difference between $path and $base nodename and/or device.
# Hence we fall back to returning the absolute $path spec
# if there is a case blind device (or node) difference of any sort
# and we do not even try to call $parse() or consult %ENV for $trnlnm()
# (this module needs to run on non VMS platforms after all).
my ($path_volume, $path_directories, $path_file) = $self->splitpath($path);
my ($base_volume, $base_directories, $base_file) = $self->splitpath($base);
return $self->canonpath( $path ) unless lc($path_volume) eq lc($base_volume);
# Now, remove all leading components that are the same
my @pathchunks = $self->splitdir( $path_directories );
my $pathchunks = @pathchunks;
unshift(@pathchunks,'000000') unless $pathchunks[0] eq '000000';
my @basechunks = $self->splitdir( $base_directories );
my $basechunks = @basechunks;
unshift(@basechunks,'000000') unless $basechunks[0] eq '000000';
while ( @pathchunks &&
@basechunks &&
lc( $pathchunks[0] ) eq lc( $basechunks[0] )
) {
shift @pathchunks ;
shift @basechunks ;
}
# @basechunks now contains the directories to climb out of,
# @pathchunks now has the directories to descend in to.
if ((@basechunks > 0) || ($basechunks != $pathchunks)) {
$path_directories = join '.', ('-' x @basechunks, @pathchunks) ;
}
else {
$path_directories = join '.', @pathchunks;
}
$path_directories = '['.$path_directories.']';
return $self->canonpath( $self->catpath( '', $path_directories, $path_file ) ) ;
}
=item rel2abs (override)
Return an absolute file specification from a relative one.
=cut
sub rel2abs {
my $self = shift ;
my ($path,$base ) = @_;
return undef unless defined $path;
if ($path =~ m/\//) {
$path = ( -d $path || $path =~ m/\/\z/ # educated guessing about
? vmspath($path) # whether it's a directory
: vmsify($path) );
}
$base = vmspath($base) if defined $base && $base =~ m/\//;
# Clean up and split up $path
if ( ! $self->file_name_is_absolute( $path ) ) {
# Figure out the effective $base and clean it up.
if ( !defined( $base ) || $base eq '' ) {
$base = Cwd::getcwd();
}
elsif ( ! $self->file_name_is_absolute( $base ) ) {
$base = $self->rel2abs( $base ) ;
}
else {
$base = $self->canonpath( $base ) ;
}
# Split up paths
my ( $path_directories, $path_file ) =
($self->splitpath( $path ))[1,2] ;
my ( $base_volume, $base_directories ) =
$self->splitpath( $base ) ;
$path_directories = '' if $path_directories eq '[]' ||
$path_directories eq '<>';
my $sep = '' ;
$sep = '.'
if ( $base_directories =~ m{[^.\]>]\Z(?!\n)} &&
$path_directories =~ m{^[^.\[<]}s
) ;
$base_directories = "$base_directories$sep$path_directories";
$base_directories =~ s{\.?[\]>][\[<]\.?}{.};
$path = $self->catpath( $base_volume, $base_directories, $path_file );
}
return $self->canonpath( $path ) ;
}
=back
=head1 COPYRIGHT
Copyright (c) 2004-14 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.
An explanation of VMS file specs can be found at
L<http://h71000.www7.hp.com/doc/731FINAL/4506/4506pro_014.html#apps_locating_naming_files>.
=cut
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package File::Spec::Win32;
use strict;
use Cwd ();
require File::Spec::Unix;
our $VERSION = '3.91';
$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 L<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;
# 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;