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-rw-r--r--contrib/perl5/lib/Shell.pm73
1 files changed, 55 insertions, 18 deletions
diff --git a/contrib/perl5/lib/Shell.pm b/contrib/perl5/lib/Shell.pm
index 62aa82964c19..c2f522cae309 100644
--- a/contrib/perl5/lib/Shell.pm
+++ b/contrib/perl5/lib/Shell.pm
@@ -1,8 +1,13 @@
package Shell;
use 5.005_64;
-our($capture_stderr, $VERSION);
+use strict;
+use warnings;
+our($capture_stderr, $VERSION, $AUTOLOAD);
-$VERSION = '0.2';
+$VERSION = '0.3';
+
+sub new { bless \$VERSION, shift } # Nothing better to bless
+sub DESTROY { }
sub import {
my $self = shift;
@@ -10,24 +15,24 @@ sub import {
my @EXPORT;
if (@_) {
@EXPORT = @_;
- }
- else {
+ } else {
@EXPORT = 'AUTOLOAD';
}
- foreach $sym (@EXPORT) {
+ foreach my $sym (@EXPORT) {
+ no strict 'refs';
*{"${callpack}::$sym"} = \&{"Shell::$sym"};
}
-};
+}
-AUTOLOAD {
+sub AUTOLOAD {
+ shift if ref $_[0] && $_[0]->isa( 'Shell' );
my $cmd = $AUTOLOAD;
$cmd =~ s/^.*:://;
eval <<"*END*";
sub $AUTOLOAD {
if (\@_ < 1) {
\$Shell::capture_stderr ? `$cmd 2>&1` : `$cmd`;
- }
- elsif ('$^O' eq 'os2') {
+ } elsif ('$^O' eq 'os2') {
local(\*SAVEOUT, \*READ, \*WRITE);
open SAVEOUT, '>&STDOUT' or die;
@@ -46,16 +51,14 @@ AUTOLOAD {
close READ;
waitpid \$pid, 0;
\@ret;
- }
- else {
+ } else {
local(\$/) = undef;
my \$ret = <READ>;
close READ;
waitpid \$pid, 0;
\$ret;
}
- }
- else {
+ } else {
my \$a;
my \@arr = \@_;
if ('$^O' eq 'MSWin32') {
@@ -74,11 +77,10 @@ AUTOLOAD {
s/\\\\\\\\"/\\\\\\\\"""/g;
\$_ = qq["\$_"] if /\\s/;
}
- }
- else {
+ } else {
for (\@arr) {
s/(['\\\\])/\\\\\$1/g;
- \$_ = "'\$_'";
+ \$_ = \$_;
}
}
push \@arr, '2>&1' if \$Shell::capture_stderr;
@@ -88,8 +90,7 @@ AUTOLOAD {
my \@ret = <SUBPROC>;
close SUBPROC; # XXX Oughta use a destructor.
\@ret;
- }
- else {
+ } else {
local(\$/) = undef;
my \$ret = <SUBPROC>;
close SUBPROC;
@@ -104,6 +105,7 @@ AUTOLOAD {
}
1;
+
__END__
=head1 NAME
@@ -155,10 +157,45 @@ The module now should work on Win32.
Jenda
+There seemed to be a problem where all arguments to a shell command were
+quoted before being executed. As in the following example:
+
+ cat('</etc/passwd');
+ ls('*.pl');
+
+really turned into:
+
+ cat '</etc/passwd'
+ ls '*.pl'
+
+instead of:
+
+ cat </etc/passwd
+ ls *.pl
+
+and of course, this is wrong.
+
+I have fixed this bug, it was brought up by Wolfgang Laun [ID 20000326.008]
+
+Casey
+
+=head2 OBJECT ORIENTED SYNTAX
+
+Shell now has an OO interface. Good for namespace conservation
+and shell representation.
+
+ use Shell;
+ my $sh = Shell->new;
+ print $sh->ls;
+
+Casey
+
=head1 AUTHOR
Larry Wall
Changes by Jenda@Krynicky.cz and Dave Cottle <d.cottle@csc.canterbury.ac.nz>
+Changes and bug fixes by Casey Tweten <crt@kiski.net>
+
=cut