NAME¶
File::Spec::VMS - methods for VMS file specs
SYNOPSIS¶
require File::Spec::VMS; # Done internally by File::Spec if needed
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, even when Unix syntax was given on input.
When used with a Perl of version 5.10 or greater and a CRTL possessing the
relevant capabilities, override behavior depends on the CRTL features
"DECC$FILENAME_UNIX_REPORT" and "DECC$EFS_CHARSET". When
the "DECC$EFS_CHARSET" feature is enabled and the input parameters
are clearly in Unix syntax, the output will be in Unix syntax. If
"DECC$FILENAME_UNIX_REPORT" is enabled and the output syntax cannot
be determined from the input syntax, the output will be in Unix syntax.
- canonpath (override)
- Removes redundant portions of file specifications according
to the syntax detected.
- catdir (override)
- Concatenates a list of file specifications, and returns the
result as a directory specification. No check is made for
"impossible" cases (e.g. elements other than the first being
absolute filespecs).
- catfile (override)
- Concatenates a list of directory specifications with a
filename specification to build a path.
- curdir (override)
- Returns a string representation of the current directory:
'[]' or '.'
- devnull (override)
- Returns a string representation of the null device:
'_NLA0:' or '/dev/null'
- rootdir (override)
- Returns a string representation of the root directory:
'SYS$DISK:[000000]' or '/'
- tmpdir (override)
- Returns a string representation of the first writable
directory from the following list or '' if none are writable:
/tmp if C<DECC$FILENAME_UNIX_REPORT> is enabled.
sys$scratch:
$ENV{TMPDIR}
Since perl 5.8.0, if running under taint mode, and if $ENV{TMPDIR} is
tainted, it is not used.
- updir (override)
- Returns a string representation of the parent directory:
'[-]' or '..'
- case_tolerant (override)
- VMS file specification syntax is case-tolerant.
- path (override)
- Translate logical name DCL$PATH as a searchlist, rather
than trying to "split" string value of $ENV{'PATH'}.
- file_name_is_absolute (override)
- Checks for VMS directory spec as well as Unix
separators.
- splitpath (override)
-
($volume,$directories,$file) = File::Spec->splitpath( $path );
($volume,$directories,$file) = File::Spec->splitpath( $path, $no_file );
Passing a true value for $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.
- splitdir (override)
- Split a directory specification into the components.
- catpath (override)
- Construct a complete filespec.
- abs2rel (override)
- Attempt to convert a file specification to a relative
specification. On a system with volumes, like VMS, this may not be
possible.
- rel2abs (override)
- Return an absolute file specification from a relative
one.
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.
SEE ALSO¶
See File::Spec and File::Spec::Unix. This package overrides the implementation
of these methods, not the semantics.
An explanation of VMS file specs can be found at
<
http://h71000.www7.hp.com/doc/731FINAL/4506/4506pro_014.html#apps_locating_naming_files>.