package File::DosGlob;
-unless (caller) {
- $| = 1;
- while (@ARGV) {
- #
- # We have to do this one by one for compatibility reasons.
- # If an arg doesn't match anything, we are supposed to return
- # the original arg. I know, it stinks, eh?
- #
- my $arg = shift;
- my @m = doglob(1,$arg);
- print (@m ? join("\0", sort @m) : $arg);
- print "\0" if @ARGV;
- }
-}
-
sub doglob {
my $cond = shift;
my @retval = ();
sub glob {
my $pat = shift;
my $cxix = shift;
+ my @pat;
# glob without args defaults to $_
$pat = $_ unless defined $pat;
+ # extract patterns
+ if ($pat =~ /\s/) {
+ require Text::ParseWords;
+ @pat = Text::ParseWords::parse_line('\s+',0,$pat);
+ }
+ else {
+ push @pat, $pat;
+ }
+
# assume global context if not provided one
$cxix = '_G_' unless defined $cxix;
$iter{$cxix} = 0 unless exists $iter{$cxix};
# if we're just beginning, do it all first
if ($iter{$cxix} == 0) {
- $entries{$cxix} = [doglob(1,$pat)];
+ $entries{$cxix} = [doglob(1,@pat)];
}
# chuck it all out, quick or slow
sub import {
my $pkg = shift;
- my $callpkg = caller(0);
+ return unless @_;
my $sym = shift;
- *{$callpkg.'::'.$sym} = \&{$pkg.'::'.$sym}
- if defined($sym) and $sym eq 'glob';
+ my $callpkg = ($sym =~ s/^GLOBAL_// ? 'CORE::GLOBAL' : caller(0));
+ *{$callpkg.'::'.$sym} = \&{$pkg.'::'.$sym} if $sym eq 'glob';
}
1;
File::DosGlob - DOS like globbing and then some
-perlglob.bat - a more capable perlglob.exe replacement
-
=head1 SYNOPSIS
require 5.004;
# override CORE::glob in current package
use File::DosGlob 'glob';
+ # override CORE::glob in ALL packages (use with extreme caution!)
+ use File::DosGlob 'GLOBAL_glob';
+
@perlfiles = glob "..\\pe?l/*.p?";
print <..\\pe?l/*.p?>;
# from the command line (overrides only in main::)
> perl -MFile::DosGlob=glob -e "print <../pe*/*p?>"
-
- > perlglob ../pe*/*p?
=head1 DESCRIPTION
A module that implements DOS-like globbing with a few enhancements.
-This file is also a portable replacement for perlglob.exe. It
-is largely compatible with perlglob.exe (the M$ setargv.obj
+It is largely compatible with perlglob.exe (the M$ setargv.obj
version) in all but one respect--it understands wildcards in
directory components.
You may have to double the backslashes if you are putting them in
literally, due to double-quotish parsing of the pattern by perl.
-When invoked as a program, it will print null-separated filenames
-to standard output.
-
-While one may replace perlglob.exe with this, usage by overriding
-CORE::glob via importation should be much more efficient, because
-it avoids launching a separate process, and is therefore strongly
-recommended. Note that it is currently possible to override
-builtins like glob() only on a per-package basis, not "globally".
-Thus, every namespace that wants to override glob() must explicitly
-request the override. See L<perlsub>.
+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 AUTHOR
-Gurusamy Sarathy <gsar@umich.edu>
+Gurusamy Sarathy <gsar@activestate.com>
=head1 HISTORY
=item *
+Support for globally overriding glob() (GSAR 3-JUN-98)
+
+=item *
+
Scalar context, independent iterator context fixes (GSAR 15-SEP-97)
=item *
perl
+perlglob.bat
+
+Text::ParseWords
+
=cut