1001 lines
29 KiB
Perl
1001 lines
29 KiB
Perl
|
#
|
||
|
|
# Data/Dumper.pm
|
||
|
|
#
|
||
|
|
# convert perl data structures into perl syntax suitable for both printing
|
||
|
|
# and eval
|
||
|
|
#
|
||
|
|
# Documentation at the __END__
|
||
|
|
#
|
||
|
|
|
||
|
|
package Data::Dumper;
|
||
|
|
|
||
|
|
$VERSION = $VERSION = '2.101';
|
||
|
|
|
||
|
|
#$| = 1;
|
||
|
|
|
||
|
|
require 5.004;
|
||
|
|
require Exporter;
|
||
|
|
require DynaLoader;
|
||
|
|
require overload;
|
||
|
|
|
||
|
|
use Carp;
|
||
|
|
|
||
|
|
@ISA = qw(Exporter DynaLoader);
|
||
|
|
@EXPORT = qw(Dumper);
|
||
|
|
@EXPORT_OK = qw(DumperX);
|
||
|
|
|
||
|
|
bootstrap Data::Dumper;
|
||
|
|
|
||
|
|
# module vars and their defaults
|
||
|
|
$Indent = 2 unless defined $Indent;
|
||
|
|
$Purity = 0 unless defined $Purity;
|
||
|
|
$Pad = "" unless defined $Pad;
|
||
|
|
$Varname = "VAR" unless defined $Varname;
|
||
|
|
$Useqq = 0 unless defined $Useqq;
|
||
|
|
$Terse = 0 unless defined $Terse;
|
||
|
|
$Freezer = "" unless defined $Freezer;
|
||
|
|
$Toaster = "" unless defined $Toaster;
|
||
|
|
$Deepcopy = 0 unless defined $Deepcopy;
|
||
|
|
$Quotekeys = 1 unless defined $Quotekeys;
|
||
|
|
$Bless = "bless" unless defined $Bless;
|
||
|
|
#$Expdepth = 0 unless defined $Expdepth;
|
||
|
|
#$Maxdepth = 0 unless defined $Maxdepth;
|
||
|
|
|
||
|
|
#
|
||
|
|
# expects an arrayref of values to be dumped.
|
||
|
|
# can optionally pass an arrayref of names for the values.
|
||
|
|
# names must have leading $ sign stripped. begin the name with *
|
||
|
|
# to cause output of arrays and hashes rather than refs.
|
||
|
|
#
|
||
|
|
sub new {
|
||
|
|
my($c, $v, $n) = @_;
|
||
|
|
|
||
|
|
croak "Usage: PACKAGE->new(ARRAYREF, [ARRAYREF])"
|
||
|
|
unless (defined($v) && (ref($v) eq 'ARRAY'));
|
||
|
|
$n = [] unless (defined($n) && (ref($v) eq 'ARRAY'));
|
||
|
|
|
||
|
|
my($s) = {
|
||
|
|
level => 0, # current recursive depth
|
||
|
|
indent => $Indent, # various styles of indenting
|
||
|
|
pad => $Pad, # all lines prefixed by this string
|
||
|
|
xpad => "", # padding-per-level
|
||
|
|
apad => "", # added padding for hash keys n such
|
||
|
|
sep => "", # list separator
|
||
|
|
seen => {}, # local (nested) refs (id => [name, val])
|
||
|
|
todump => $v, # values to dump []
|
||
|
|
names => $n, # optional names for values []
|
||
|
|
varname => $Varname, # prefix to use for tagging nameless ones
|
||
|
|
purity => $Purity, # degree to which output is evalable
|
||
|
|
useqq => $Useqq, # use "" for strings (backslashitis ensues)
|
||
|
|
terse => $Terse, # avoid name output (where feasible)
|
||
|
|
freezer => $Freezer, # name of Freezer method for objects
|
||
|
|
toaster => $Toaster, # name of method to revive objects
|
||
|
|
deepcopy => $Deepcopy, # dont cross-ref, except to stop recursion
|
||
|
|
quotekeys => $Quotekeys, # quote hash keys
|
||
|
|
'bless' => $Bless, # keyword to use for "bless"
|
||
|
|
# expdepth => $Expdepth, # cutoff depth for explicit dumping
|
||
|
|
# maxdepth => $Maxdepth, # depth beyond which we give up
|
||
|
|
};
|
||
|
|
|
||
|
|
if ($Indent > 0) {
|
||
|
|
$s->{xpad} = " ";
|
||
|
|
$s->{sep} = "\n";
|
||
|
|
}
|
||
|
|
return bless($s, $c);
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# add-to or query the table of already seen references
|
||
|
|
#
|
||
|
|
sub Seen {
|
||
|
|
my($s, $g) = @_;
|
||
|
|
if (defined($g) && (ref($g) eq 'HASH')) {
|
||
|
|
my($k, $v, $id);
|
||
|
|
while (($k, $v) = each %$g) {
|
||
|
|
if (defined $v and ref $v) {
|
||
|
|
($id) = (overload::StrVal($v) =~ /\((.*)\)$/);
|
||
|
|
if ($k =~ /^[*](.*)$/) {
|
||
|
|
$k = (ref $v eq 'ARRAY') ? ( "\\\@" . $1 ) :
|
||
|
|
(ref $v eq 'HASH') ? ( "\\\%" . $1 ) :
|
||
|
|
(ref $v eq 'CODE') ? ( "\\\&" . $1 ) :
|
||
|
|
( "\$" . $1 ) ;
|
||
|
|
}
|
||
|
|
elsif ($k !~ /^\$/) {
|
||
|
|
$k = "\$" . $k;
|
||
|
|
}
|
||
|
|
$s->{seen}{$id} = [$k, $v];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
carp "Only refs supported, ignoring non-ref item \$$k";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return map { @$_ } values %{$s->{seen}};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# set or query the values to be dumped
|
||
|
|
#
|
||
|
|
sub Values {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
if (defined($v) && (ref($v) eq 'ARRAY')) {
|
||
|
|
$s->{todump} = [@$v]; # make a copy
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return @{$s->{todump}};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# set or query the names of the values to be dumped
|
||
|
|
#
|
||
|
|
sub Names {
|
||
|
|
my($s, $n) = @_;
|
||
|
|
if (defined($n) && (ref($n) eq 'ARRAY')) {
|
||
|
|
$s->{names} = [@$n]; # make a copy
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return @{$s->{names}};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub DESTROY {}
|
||
|
|
|
||
|
|
#
|
||
|
|
# dump the refs in the current dumper object.
|
||
|
|
# expects same args as new() if called via package name.
|
||
|
|
#
|
||
|
|
sub Dump {
|
||
|
|
my($s) = shift;
|
||
|
|
my(@out, $val, $name);
|
||
|
|
my($i) = 0;
|
||
|
|
local(@post);
|
||
|
|
|
||
|
|
$s = $s->new(@_) unless ref $s;
|
||
|
|
|
||
|
|
for $val (@{$s->{todump}}) {
|
||
|
|
my $out = "";
|
||
|
|
@post = ();
|
||
|
|
$name = $s->{names}[$i++];
|
||
|
|
if (defined $name) {
|
||
|
|
if ($name =~ /^[*](.*)$/) {
|
||
|
|
if (defined $val) {
|
||
|
|
$name = (ref $val eq 'ARRAY') ? ( "\@" . $1 ) :
|
||
|
|
(ref $val eq 'HASH') ? ( "\%" . $1 ) :
|
||
|
|
(ref $val eq 'CODE') ? ( "\*" . $1 ) :
|
||
|
|
( "\$" . $1 ) ;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$name = "\$" . $1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($name !~ /^\$/) {
|
||
|
|
$name = "\$" . $name;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$name = "\$" . $s->{varname} . $i;
|
||
|
|
}
|
||
|
|
|
||
|
|
my $valstr;
|
||
|
|
{
|
||
|
|
local($s->{apad}) = $s->{apad};
|
||
|
|
$s->{apad} .= ' ' x (length($name) + 3) if $s->{indent} >= 2;
|
||
|
|
$valstr = $s->_dump($val, $name);
|
||
|
|
}
|
||
|
|
|
||
|
|
$valstr = "$name = " . $valstr . ';' if @post or !$s->{terse};
|
||
|
|
$out .= $s->{pad} . $valstr . $s->{sep};
|
||
|
|
$out .= $s->{pad} . join(';' . $s->{sep} . $s->{pad}, @post)
|
||
|
|
. ';' . $s->{sep} if @post;
|
||
|
|
|
||
|
|
push @out, $out;
|
||
|
|
}
|
||
|
|
return wantarray ? @out : join('', @out);
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# twist, toil and turn;
|
||
|
|
# and recurse, of course.
|
||
|
|
#
|
||
|
|
sub _dump {
|
||
|
|
my($s, $val, $name) = @_;
|
||
|
|
my($sname);
|
||
|
|
my($out, $realpack, $realtype, $type, $ipad, $id, $blesspad);
|
||
|
|
|
||
|
|
$type = ref $val;
|
||
|
|
$out = "";
|
||
|
|
|
||
|
|
if ($type) {
|
||
|
|
|
||
|
|
# prep it, if it looks like an object
|
||
|
|
if ($type =~ /[a-z_:]/) {
|
||
|
|
my $freezer = $s->{freezer};
|
||
|
|
$val->$freezer() if $freezer && UNIVERSAL::can($val, $freezer);
|
||
|
|
}
|
||
|
|
|
||
|
|
($realpack, $realtype, $id) =
|
||
|
|
(overload::StrVal($val) =~ /^(?:(.*)\=)?([^=]*)\(([^\(]*)\)$/);
|
||
|
|
|
||
|
|
# if it has a name, we need to either look it up, or keep a tab
|
||
|
|
# on it so we know when we hit it later
|
||
|
|
if (defined($name) and length($name)) {
|
||
|
|
# keep a tab on it so that we dont fall into recursive pit
|
||
|
|
if (exists $s->{seen}{$id}) {
|
||
|
|
# if ($s->{expdepth} < $s->{level}) {
|
||
|
|
if ($s->{purity} and $s->{level} > 0) {
|
||
|
|
$out = ($realtype eq 'HASH') ? '{}' :
|
||
|
|
($realtype eq 'ARRAY') ? '[]' :
|
||
|
|
"''" ;
|
||
|
|
push @post, $name . " = " . $s->{seen}{$id}[0];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$out = $s->{seen}{$id}[0];
|
||
|
|
if ($name =~ /^([\@\%])/) {
|
||
|
|
my $start = $1;
|
||
|
|
if ($out =~ /^\\$start/) {
|
||
|
|
$out = substr($out, 1);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$out = $start . '{' . $out . '}';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $out;
|
||
|
|
# }
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
# store our name
|
||
|
|
$s->{seen}{$id} = [ (($name =~ /^[@%]/) ? ('\\' . $name ) :
|
||
|
|
($realtype eq 'CODE' and
|
||
|
|
$name =~ /^[*](.*)$/) ? ('\\&' . $1 ) :
|
||
|
|
$name ),
|
||
|
|
$val ];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$s->{level}++;
|
||
|
|
$ipad = $s->{xpad} x $s->{level};
|
||
|
|
|
||
|
|
if ($realpack) { # we have a blessed ref
|
||
|
|
$out = $s->{'bless'} . '( ';
|
||
|
|
$blesspad = $s->{apad};
|
||
|
|
$s->{apad} .= ' ' if ($s->{indent} >= 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($realtype eq 'SCALAR') {
|
||
|
|
if ($realpack) {
|
||
|
|
$out .= 'do{\\(my $o = ' . $s->_dump($$val, "\${$name}") . ')}';
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$out .= '\\' . $s->_dump($$val, "\${$name}");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elsif ($realtype eq 'GLOB') {
|
||
|
|
$out .= '\\' . $s->_dump($$val, "*{$name}");
|
||
|
|
}
|
||
|
|
elsif ($realtype eq 'ARRAY') {
|
||
|
|
my($v, $pad, $mname);
|
||
|
|
my($i) = 0;
|
||
|
|
$out .= ($name =~ /^\@/) ? '(' : '[';
|
||
|
|
$pad = $s->{sep} . $s->{pad} . $s->{apad};
|
||
|
|
($name =~ /^\@(.*)$/) ? ($mname = "\$" . $1) :
|
||
|
|
# omit -> if $foo->[0]->{bar}, but not ${$foo->[0]}->{bar}
|
||
|
|
($name =~ /^\\?[\%\@\*\$][^{].*[]}]$/) ? ($mname = $name) :
|
||
|
|
($mname = $name . '->');
|
||
|
|
$mname .= '->' if $mname =~ /^\*.+\{[A-Z]+\}$/;
|
||
|
|
for $v (@$val) {
|
||
|
|
$sname = $mname . '[' . $i . ']';
|
||
|
|
$out .= $pad . $ipad . '#' . $i if $s->{indent} >= 3;
|
||
|
|
$out .= $pad . $ipad . $s->_dump($v, $sname);
|
||
|
|
$out .= "," if $i++ < $#$val;
|
||
|
|
}
|
||
|
|
$out .= $pad . ($s->{xpad} x ($s->{level} - 1)) if $i;
|
||
|
|
$out .= ($name =~ /^\@/) ? ')' : ']';
|
||
|
|
}
|
||
|
|
elsif ($realtype eq 'HASH') {
|
||
|
|
my($k, $v, $pad, $lpad, $mname);
|
||
|
|
$out .= ($name =~ /^\%/) ? '(' : '{';
|
||
|
|
$pad = $s->{sep} . $s->{pad} . $s->{apad};
|
||
|
|
$lpad = $s->{apad};
|
||
|
|
($name =~ /^\%(.*)$/) ? ($mname = "\$" . $1) :
|
||
|
|
# omit -> if $foo->[0]->{bar}, but not ${$foo->[0]}->{bar}
|
||
|
|
($name =~ /^\\?[\%\@\*\$][^{].*[]}]$/) ? ($mname = $name) :
|
||
|
|
($mname = $name . '->');
|
||
|
|
$mname .= '->' if $mname =~ /^\*.+\{[A-Z]+\}$/;
|
||
|
|
while (($k, $v) = each %$val) {
|
||
|
|
my $nk = $s->_dump($k, "");
|
||
|
|
$nk = $1 if !$s->{quotekeys} and $nk =~ /^[\"\']([A-Za-z_]\w*)[\"\']$/;
|
||
|
|
$sname = $mname . '{' . $nk . '}';
|
||
|
|
$out .= $pad . $ipad . $nk . " => ";
|
||
|
|
|
||
|
|
# temporarily alter apad
|
||
|
|
$s->{apad} .= (" " x (length($nk) + 4)) if $s->{indent} >= 2;
|
||
|
|
$out .= $s->_dump($val->{$k}, $sname) . ",";
|
||
|
|
$s->{apad} = $lpad if $s->{indent} >= 2;
|
||
|
|
}
|
||
|
|
if (substr($out, -1) eq ',') {
|
||
|
|
chop $out;
|
||
|
|
$out .= $pad . ($s->{xpad} x ($s->{level} - 1));
|
||
|
|
}
|
||
|
|
$out .= ($name =~ /^\%/) ? ')' : '}';
|
||
|
|
}
|
||
|
|
elsif ($realtype eq 'CODE') {
|
||
|
|
$out .= 'sub { "DUMMY" }';
|
||
|
|
carp "Encountered CODE ref, using dummy placeholder" if $s->{purity};
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
croak "Can\'t handle $realtype type.";
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($realpack) { # we have a blessed ref
|
||
|
|
$out .= ', \'' . $realpack . '\'' . ' )';
|
||
|
|
$out .= '->' . $s->{toaster} . '()' if $s->{toaster} ne '';
|
||
|
|
$s->{apad} = $blesspad;
|
||
|
|
}
|
||
|
|
$s->{level}--;
|
||
|
|
|
||
|
|
}
|
||
|
|
else { # simple scalar
|
||
|
|
|
||
|
|
my $ref = \$_[1];
|
||
|
|
# first, catalog the scalar
|
||
|
|
if ($name ne '') {
|
||
|
|
($id) = ("$ref" =~ /\(([^\(]*)\)$/);
|
||
|
|
if (exists $s->{seen}{$id}) {
|
||
|
|
if ($s->{seen}{$id}[2]) {
|
||
|
|
$out = $s->{seen}{$id}[0];
|
||
|
|
#warn "[<$out]\n";
|
||
|
|
return "\${$out}";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
#warn "[>\\$name]\n";
|
||
|
|
$s->{seen}{$id} = ["\\$name", $ref];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (ref($ref) eq 'GLOB' or "$ref" =~ /=GLOB\([^()]+\)$/) { # glob
|
||
|
|
my $name = substr($val, 1);
|
||
|
|
if ($name =~ /^[A-Za-z_][\w:]*$/) {
|
||
|
|
$name =~ s/^main::/::/;
|
||
|
|
$sname = $name;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$sname = $s->_dump($name, "");
|
||
|
|
$sname = '{' . $sname . '}';
|
||
|
|
}
|
||
|
|
if ($s->{purity}) {
|
||
|
|
my $k;
|
||
|
|
local ($s->{level}) = 0;
|
||
|
|
for $k (qw(SCALAR ARRAY HASH)) {
|
||
|
|
my $gval = *$val{$k};
|
||
|
|
next unless defined $gval;
|
||
|
|
next if $k eq "SCALAR" && ! defined $$gval; # always there
|
||
|
|
|
||
|
|
# _dump can push into @post, so we hold our place using $postlen
|
||
|
|
my $postlen = scalar @post;
|
||
|
|
$post[$postlen] = "\*$sname = ";
|
||
|
|
local ($s->{apad}) = " " x length($post[$postlen]) if $s->{indent} >= 2;
|
||
|
|
$post[$postlen] .= $s->_dump($gval, "\*$sname\{$k\}");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$out .= '*' . $sname;
|
||
|
|
}
|
||
|
|
elsif (!defined($val)) {
|
||
|
|
$out .= "undef";
|
||
|
|
}
|
||
|
|
elsif ($val =~ /^-?[1-9]\d{0,8}$/) { # safe decimal number
|
||
|
|
$out .= $val;
|
||
|
|
}
|
||
|
|
else { # string
|
||
|
|
if ($s->{useqq}) {
|
||
|
|
$out .= qquote($val, $s->{useqq});
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$val =~ s/([\\\'])/\\$1/g;
|
||
|
|
$out .= '\'' . $val . '\'';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($id) {
|
||
|
|
# if we made it this far, $id was added to seen list at current
|
||
|
|
# level, so remove it to get deep copies
|
||
|
|
if ($s->{deepcopy}) {
|
||
|
|
delete($s->{seen}{$id});
|
||
|
|
}
|
||
|
|
elsif ($name) {
|
||
|
|
$s->{seen}{$id}[2] = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $out;
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# non-OO style of earlier version
|
||
|
|
#
|
||
|
|
sub Dumper {
|
||
|
|
return Data::Dumper->Dump([@_]);
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# same, only calls the XS version
|
||
|
|
#
|
||
|
|
sub DumperX {
|
||
|
|
return Data::Dumper->Dumpxs([@_], []);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Dumpf { return Data::Dumper->Dump(@_) }
|
||
|
|
|
||
|
|
sub Dumpp { print Data::Dumper->Dump(@_) }
|
||
|
|
|
||
|
|
#
|
||
|
|
# reset the "seen" cache
|
||
|
|
#
|
||
|
|
sub Reset {
|
||
|
|
my($s) = shift;
|
||
|
|
$s->{seen} = {};
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Indent {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
if (defined($v)) {
|
||
|
|
if ($v == 0) {
|
||
|
|
$s->{xpad} = "";
|
||
|
|
$s->{sep} = "";
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$s->{xpad} = " ";
|
||
|
|
$s->{sep} = "\n";
|
||
|
|
}
|
||
|
|
$s->{indent} = $v;
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return $s->{indent};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Pad {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{pad} = $v), return $s) : $s->{pad};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Varname {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{varname} = $v), return $s) : $s->{varname};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Purity {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{purity} = $v), return $s) : $s->{purity};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Useqq {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{useqq} = $v), return $s) : $s->{useqq};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Terse {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{terse} = $v), return $s) : $s->{terse};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Freezer {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{freezer} = $v), return $s) : $s->{freezer};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Toaster {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{toaster} = $v), return $s) : $s->{toaster};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Deepcopy {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{deepcopy} = $v), return $s) : $s->{deepcopy};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Quotekeys {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{quotekeys} = $v), return $s) : $s->{quotekeys};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub Bless {
|
||
|
|
my($s, $v) = @_;
|
||
|
|
defined($v) ? (($s->{'bless'} = $v), return $s) : $s->{'bless'};
|
||
|
|
}
|
||
|
|
|
||
|
|
# used by qquote below
|
||
|
|
my %esc = (
|
||
|
|
"\a" => "\\a",
|
||
|
|
"\b" => "\\b",
|
||
|
|
"\t" => "\\t",
|
||
|
|
"\n" => "\\n",
|
||
|
|
"\f" => "\\f",
|
||
|
|
"\r" => "\\r",
|
||
|
|
"\e" => "\\e",
|
||
|
|
);
|
||
|
|
|
||
|
|
# put a string value in double quotes
|
||
|
|
sub qquote {
|
||
|
|
local($_) = shift;
|
||
|
|
s/([\\\"\@\$])/\\$1/g;
|
||
|
|
return qq("$_") unless /[^\040-\176]/; # fast exit
|
||
|
|
|
||
|
|
my $high = shift || "";
|
||
|
|
s/([\a\b\t\n\f\r\e])/$esc{$1}/g;
|
||
|
|
|
||
|
|
# no need for 3 digits in escape for these
|
||
|
|
s/([\0-\037])(?!\d)/'\\'.sprintf('%o',ord($1))/eg;
|
||
|
|
|
||
|
|
s/([\0-\037\177])/'\\'.sprintf('%03o',ord($1))/eg;
|
||
|
|
if ($high eq "iso8859") {
|
||
|
|
s/([\200-\240])/'\\'.sprintf('%o',ord($1))/eg;
|
||
|
|
} elsif ($high eq "utf8") {
|
||
|
|
# use utf8;
|
||
|
|
# $str =~ s/([^\040-\176])/sprintf "\\x{%04x}", ord($1)/ge;
|
||
|
|
} elsif ($high eq "8bit") {
|
||
|
|
# leave it as it is
|
||
|
|
} else {
|
||
|
|
s/([\0-\037\177-\377])/'\\'.sprintf('%03o',ord($1))/eg;
|
||
|
|
}
|
||
|
|
return qq("$_");
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|
||
|
|
__END__
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
Data::Dumper - stringified perl data structures, suitable for both printing and C<eval>
|
||
|
|
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
use Data::Dumper;
|
||
|
|
|
||
|
|
# simple procedural interface
|
||
|
|
print Dumper($foo, $bar);
|
||
|
|
|
||
|
|
# extended usage with names
|
||
|
|
print Data::Dumper->Dump([$foo, $bar], [qw(foo *ary)]);
|
||
|
|
|
||
|
|
# configuration variables
|
||
|
|
{
|
||
|
|
local $Data::Dump::Purity = 1;
|
||
|
|
eval Data::Dumper->Dump([$foo, $bar], [qw(foo *ary)]);
|
||
|
|
}
|
||
|
|
|
||
|
|
# OO usage
|
||
|
|
$d = Data::Dumper->new([$foo, $bar], [qw(foo *ary)]);
|
||
|
|
...
|
||
|
|
print $d->Dump;
|
||
|
|
...
|
||
|
|
$d->Purity(1)->Terse(1)->Deepcopy(1);
|
||
|
|
eval $d->Dump;
|
||
|
|
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
Given a list of scalars or reference variables, writes out their contents in
|
||
|
|
perl syntax. The references can also be objects. The contents of each
|
||
|
|
variable is output in a single Perl statement. Handles self-referential
|
||
|
|
structures correctly.
|
||
|
|
|
||
|
|
The return value can be C<eval>ed to get back an identical copy of the
|
||
|
|
original reference structure.
|
||
|
|
|
||
|
|
Any references that are the same as one of those passed in will be named
|
||
|
|
C<$VAR>I<n> (where I<n> is a numeric suffix), and other duplicate references
|
||
|
|
to substructures within C<$VAR>I<n> will be appropriately labeled using arrow
|
||
|
|
notation. You can specify names for individual values to be dumped if you
|
||
|
|
use the C<Dump()> method, or you can change the default C<$VAR> prefix to
|
||
|
|
something else. See C<$Data::Dumper::Varname> and C<$Data::Dumper::Terse>
|
||
|
|
below.
|
||
|
|
|
||
|
|
The default output of self-referential structures can be C<eval>ed, but the
|
||
|
|
nested references to C<$VAR>I<n> will be undefined, since a recursive
|
||
|
|
structure cannot be constructed using one Perl statement. You should set the
|
||
|
|
C<Purity> flag to 1 to get additional statements that will correctly fill in
|
||
|
|
these references.
|
||
|
|
|
||
|
|
In the extended usage form, the references to be dumped can be given
|
||
|
|
user-specified names. If a name begins with a C<*>, the output will
|
||
|
|
describe the dereferenced type of the supplied reference for hashes and
|
||
|
|
arrays, and coderefs. Output of names will be avoided where possible if
|
||
|
|
the C<Terse> flag is set.
|
||
|
|
|
||
|
|
In many cases, methods that are used to set the internal state of the
|
||
|
|
object will return the object itself, so method calls can be conveniently
|
||
|
|
chained together.
|
||
|
|
|
||
|
|
Several styles of output are possible, all controlled by setting
|
||
|
|
the C<Indent> flag. See L<Configuration Variables or Methods> below
|
||
|
|
for details.
|
||
|
|
|
||
|
|
|
||
|
|
=head2 Methods
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item I<PACKAGE>->new(I<ARRAYREF [>, I<ARRAYREF]>)
|
||
|
|
|
||
|
|
Returns a newly created C<Data::Dumper> object. The first argument is an
|
||
|
|
anonymous array of values to be dumped. The optional second argument is an
|
||
|
|
anonymous array of names for the values. The names need not have a leading
|
||
|
|
C<$> sign, and must be comprised of alphanumeric characters. You can begin
|
||
|
|
a name with a C<*> to specify that the dereferenced type must be dumped
|
||
|
|
instead of the reference itself, for ARRAY and HASH references.
|
||
|
|
|
||
|
|
The prefix specified by C<$Data::Dumper::Varname> will be used with a
|
||
|
|
numeric suffix if the name for a value is undefined.
|
||
|
|
|
||
|
|
Data::Dumper will catalog all references encountered while dumping the
|
||
|
|
values. Cross-references (in the form of names of substructures in perl
|
||
|
|
syntax) will be inserted at all possible points, preserving any structural
|
||
|
|
interdependencies in the original set of values. Structure traversal is
|
||
|
|
depth-first, and proceeds in order from the first supplied value to
|
||
|
|
the last.
|
||
|
|
|
||
|
|
=item I<$OBJ>->Dump I<or> I<PACKAGE>->Dump(I<ARRAYREF [>, I<ARRAYREF]>)
|
||
|
|
|
||
|
|
Returns the stringified form of the values stored in the object (preserving
|
||
|
|
the order in which they were supplied to C<new>), subject to the
|
||
|
|
configuration options below. In an array context, it returns a list
|
||
|
|
of strings corresponding to the supplied values.
|
||
|
|
|
||
|
|
The second form, for convenience, simply calls the C<new> method on its
|
||
|
|
arguments before dumping the object immediately.
|
||
|
|
|
||
|
|
=item I<$OBJ>->Dumpxs I<or> I<PACKAGE>->Dumpxs(I<ARRAYREF [>, I<ARRAYREF]>)
|
||
|
|
|
||
|
|
This method is available if you were able to compile and install the XSUB
|
||
|
|
extension to C<Data::Dumper>. It is exactly identical to the C<Dump> method
|
||
|
|
above, only about 4 to 5 times faster, since it is written entirely in C.
|
||
|
|
|
||
|
|
=item I<$OBJ>->Seen(I<[HASHREF]>)
|
||
|
|
|
||
|
|
Queries or adds to the internal table of already encountered references.
|
||
|
|
You must use C<Reset> to explicitly clear the table if needed. Such
|
||
|
|
references are not dumped; instead, their names are inserted wherever they
|
||
|
|
are encountered subsequently. This is useful especially for properly
|
||
|
|
dumping subroutine references.
|
||
|
|
|
||
|
|
Expects a anonymous hash of name => value pairs. Same rules apply for names
|
||
|
|
as in C<new>. If no argument is supplied, will return the "seen" list of
|
||
|
|
name => value pairs, in an array context. Otherwise, returns the object
|
||
|
|
itself.
|
||
|
|
|
||
|
|
=item I<$OBJ>->Values(I<[ARRAYREF]>)
|
||
|
|
|
||
|
|
Queries or replaces the internal array of values that will be dumped.
|
||
|
|
When called without arguments, returns the values. Otherwise, returns the
|
||
|
|
object itself.
|
||
|
|
|
||
|
|
=item I<$OBJ>->Names(I<[ARRAYREF]>)
|
||
|
|
|
||
|
|
Queries or replaces the internal array of user supplied names for the values
|
||
|
|
that will be dumped. When called without arguments, returns the names.
|
||
|
|
Otherwise, returns the object itself.
|
||
|
|
|
||
|
|
=item I<$OBJ>->Reset
|
||
|
|
|
||
|
|
Clears the internal table of "seen" references and returns the object
|
||
|
|
itself.
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head2 Functions
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item Dumper(I<LIST>)
|
||
|
|
|
||
|
|
Returns the stringified form of the values in the list, subject to the
|
||
|
|
configuration options below. The values will be named C<$VAR>I<n> in the
|
||
|
|
output, where I<n> is a numeric suffix. Will return a list of strings
|
||
|
|
in an array context.
|
||
|
|
|
||
|
|
=item DumperX(I<LIST>)
|
||
|
|
|
||
|
|
Identical to the C<Dumper()> function above, but this calls the XSUB
|
||
|
|
implementation. Only available if you were able to compile and install
|
||
|
|
the XSUB extensions in C<Data::Dumper>.
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head2 Configuration Variables or Methods
|
||
|
|
|
||
|
|
Several configuration variables can be used to control the kind of output
|
||
|
|
generated when using the procedural interface. These variables are usually
|
||
|
|
C<local>ized in a block so that other parts of the code are not affected by
|
||
|
|
the change.
|
||
|
|
|
||
|
|
These variables determine the default state of the object created by calling
|
||
|
|
the C<new> method, but cannot be used to alter the state of the object
|
||
|
|
thereafter. The equivalent method names should be used instead to query
|
||
|
|
or set the internal state of the object.
|
||
|
|
|
||
|
|
The method forms return the object itself when called with arguments,
|
||
|
|
so that they can be chained together nicely.
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item $Data::Dumper::Indent I<or> I<$OBJ>->Indent(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Controls the style of indentation. It can be set to 0, 1, 2 or 3. Style 0
|
||
|
|
spews output without any newlines, indentation, or spaces between list
|
||
|
|
items. It is the most compact format possible that can still be called
|
||
|
|
valid perl. Style 1 outputs a readable form with newlines but no fancy
|
||
|
|
indentation (each level in the structure is simply indented by a fixed
|
||
|
|
amount of whitespace). Style 2 (the default) outputs a very readable form
|
||
|
|
which takes into account the length of hash keys (so the hash value lines
|
||
|
|
up). Style 3 is like style 2, but also annotates the elements of arrays
|
||
|
|
with their index (but the comment is on its own line, so array output
|
||
|
|
consumes twice the number of lines). Style 2 is the default.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Purity I<or> I<$OBJ>->Purity(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Controls the degree to which the output can be C<eval>ed to recreate the
|
||
|
|
supplied reference structures. Setting it to 1 will output additional perl
|
||
|
|
statements that will correctly recreate nested references. The default is
|
||
|
|
0.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Pad I<or> I<$OBJ>->Pad(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Specifies the string that will be prefixed to every line of the output.
|
||
|
|
Empty string by default.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Varname I<or> I<$OBJ>->Varname(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Contains the prefix to use for tagging variable names in the output. The
|
||
|
|
default is "VAR".
|
||
|
|
|
||
|
|
=item $Data::Dumper::Useqq I<or> I<$OBJ>->Useqq(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
When set, enables the use of double quotes for representing string values.
|
||
|
|
Whitespace other than space will be represented as C<[\n\t\r]>, "unsafe"
|
||
|
|
characters will be backslashed, and unprintable characters will be output as
|
||
|
|
quoted octal integers. Since setting this variable imposes a performance
|
||
|
|
penalty, the default is 0. The C<Dumpxs()> method does not honor this
|
||
|
|
flag yet.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Terse I<or> I<$OBJ>->Terse(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
When set, Data::Dumper will emit single, non-self-referential values as
|
||
|
|
atoms/terms rather than statements. This means that the C<$VAR>I<n> names
|
||
|
|
will be avoided where possible, but be advised that such output may not
|
||
|
|
always be parseable by C<eval>.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Freezer I<or> $I<OBJ>->Freezer(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Can be set to a method name, or to an empty string to disable the feature.
|
||
|
|
Data::Dumper will invoke that method via the object before attempting to
|
||
|
|
stringify it. This method can alter the contents of the object (if, for
|
||
|
|
instance, it contains data allocated from C), and even rebless it in a
|
||
|
|
different package. The client is responsible for making sure the specified
|
||
|
|
method can be called via the object, and that the object ends up containing
|
||
|
|
only perl data types after the method has been called. Defaults to an empty
|
||
|
|
string.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Toaster I<or> $I<OBJ>->Toaster(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Can be set to a method name, or to an empty string to disable the feature.
|
||
|
|
Data::Dumper will emit a method call for any objects that are to be dumped
|
||
|
|
using the syntax C<bless(DATA, CLASS)->METHOD()>. Note that this means that
|
||
|
|
the method specified will have to perform any modifications required on the
|
||
|
|
object (like creating new state within it, and/or reblessing it in a
|
||
|
|
different package) and then return it. The client is responsible for making
|
||
|
|
sure the method can be called via the object, and that it returns a valid
|
||
|
|
object. Defaults to an empty string.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Deepcopy I<or> $I<OBJ>->Deepcopy(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Can be set to a boolean value to enable deep copies of structures.
|
||
|
|
Cross-referencing will then only be done when absolutely essential
|
||
|
|
(i.e., to break reference cycles). Default is 0.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Quotekeys I<or> $I<OBJ>->Quotekeys(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Can be set to a boolean value to control whether hash keys are quoted.
|
||
|
|
A false value will avoid quoting hash keys when it looks like a simple
|
||
|
|
string. Default is 1, which will always enclose hash keys in quotes.
|
||
|
|
|
||
|
|
=item $Data::Dumper::Bless I<or> $I<OBJ>->Bless(I<[NEWVAL]>)
|
||
|
|
|
||
|
|
Can be set to a string that specifies an alternative to the C<bless>
|
||
|
|
builtin operator used to create objects. A function with the specified
|
||
|
|
name should exist, and should accept the same arguments as the builtin.
|
||
|
|
Default is C<bless>.
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head2 Exports
|
||
|
|
|
||
|
|
=over 4
|
||
|
|
|
||
|
|
=item Dumper
|
||
|
|
|
||
|
|
=back
|
||
|
|
|
||
|
|
=head1 EXAMPLES
|
||
|
|
|
||
|
|
Run these code snippets to get a quick feel for the behavior of this
|
||
|
|
module. When you are through with these examples, you may want to
|
||
|
|
add or change the various configuration variables described above,
|
||
|
|
to see their behavior. (See the testsuite in the Data::Dumper
|
||
|
|
distribution for more examples.)
|
||
|
|
|
||
|
|
|
||
|
|
use Data::Dumper;
|
||
|
|
|
||
|
|
package Foo;
|
||
|
|
sub new {bless {'a' => 1, 'b' => sub { return "foo" }}, $_[0]};
|
||
|
|
|
||
|
|
package Fuz; # a weird REF-REF-SCALAR object
|
||
|
|
sub new {bless \($_ = \ 'fu\'z'), $_[0]};
|
||
|
|
|
||
|
|
package main;
|
||
|
|
$foo = Foo->new;
|
||
|
|
$fuz = Fuz->new;
|
||
|
|
$boo = [ 1, [], "abcd", \*foo,
|
||
|
|
{1 => 'a', 023 => 'b', 0x45 => 'c'},
|
||
|
|
\\"p\q\'r", $foo, $fuz];
|
||
|
|
|
||
|
|
########
|
||
|
|
# simple usage
|
||
|
|
########
|
||
|
|
|
||
|
|
$bar = eval(Dumper($boo));
|
||
|
|
print($@) if $@;
|
||
|
|
print Dumper($boo), Dumper($bar); # pretty print (no array indices)
|
||
|
|
|
||
|
|
$Data::Dumper::Terse = 1; # don't output names where feasible
|
||
|
|
$Data::Dumper::Indent = 0; # turn off all pretty print
|
||
|
|
print Dumper($boo), "\n";
|
||
|
|
|
||
|
|
$Data::Dumper::Indent = 1; # mild pretty print
|
||
|
|
print Dumper($boo);
|
||
|
|
|
||
|
|
$Data::Dumper::Indent = 3; # pretty print with array indices
|
||
|
|
print Dumper($boo);
|
||
|
|
|
||
|
|
$Data::Dumper::Useqq = 1; # print strings in double quotes
|
||
|
|
print Dumper($boo);
|
||
|
|
|
||
|
|
|
||
|
|
########
|
||
|
|
# recursive structures
|
||
|
|
########
|
||
|
|
|
||
|
|
@c = ('c');
|
||
|
|
$c = \@c;
|
||
|
|
$b = {};
|
||
|
|
$a = [1, $b, $c];
|
||
|
|
$b->{a} = $a;
|
||
|
|
$b->{b} = $a->[1];
|
||
|
|
$b->{c} = $a->[2];
|
||
|
|
print Data::Dumper->Dump([$a,$b,$c], [qw(a b c)]);
|
||
|
|
|
||
|
|
|
||
|
|
$Data::Dumper::Purity = 1; # fill in the holes for eval
|
||
|
|
print Data::Dumper->Dump([$a, $b], [qw(*a b)]); # print as @a
|
||
|
|
print Data::Dumper->Dump([$b, $a], [qw(*b a)]); # print as %b
|
||
|
|
|
||
|
|
|
||
|
|
$Data::Dumper::Deepcopy = 1; # avoid cross-refs
|
||
|
|
print Data::Dumper->Dump([$b, $a], [qw(*b a)]);
|
||
|
|
|
||
|
|
|
||
|
|
$Data::Dumper::Purity = 0; # avoid cross-refs
|
||
|
|
print Data::Dumper->Dump([$b, $a], [qw(*b a)]);
|
||
|
|
|
||
|
|
|
||
|
|
########
|
||
|
|
# object-oriented usage
|
||
|
|
########
|
||
|
|
|
||
|
|
$d = Data::Dumper->new([$a,$b], [qw(a b)]);
|
||
|
|
$d->Seen({'*c' => $c}); # stash a ref without printing it
|
||
|
|
$d->Indent(3);
|
||
|
|
print $d->Dump;
|
||
|
|
$d->Reset->Purity(0); # empty the seen cache
|
||
|
|
print join "----\n", $d->Dump;
|
||
|
|
|
||
|
|
|
||
|
|
########
|
||
|
|
# persistence
|
||
|
|
########
|
||
|
|
|
||
|
|
package Foo;
|
||
|
|
sub new { bless { state => 'awake' }, shift }
|
||
|
|
sub Freeze {
|
||
|
|
my $s = shift;
|
||
|
|
print STDERR "preparing to sleep\n";
|
||
|
|
$s->{state} = 'asleep';
|
||
|
|
return bless $s, 'Foo::ZZZ';
|
||
|
|
}
|
||
|
|
|
||
|
|
package Foo::ZZZ;
|
||
|
|
sub Thaw {
|
||
|
|
my $s = shift;
|
||
|
|
print STDERR "waking up\n";
|
||
|
|
$s->{state} = 'awake';
|
||
|
|
return bless $s, 'Foo';
|
||
|
|
}
|
||
|
|
|
||
|
|
package Foo;
|
||
|
|
use Data::Dumper;
|
||
|
|
$a = Foo->new;
|
||
|
|
$b = Data::Dumper->new([$a], ['c']);
|
||
|
|
$b->Freezer('Freeze');
|
||
|
|
$b->Toaster('Thaw');
|
||
|
|
$c = $b->Dump;
|
||
|
|
print $c;
|
||
|
|
$d = eval $c;
|
||
|
|
print Data::Dumper->Dump([$d], ['d']);
|
||
|
|
|
||
|
|
|
||
|
|
########
|
||
|
|
# symbol substitution (useful for recreating CODE refs)
|
||
|
|
########
|
||
|
|
|
||
|
|
sub foo { print "foo speaking\n" }
|
||
|
|
*other = \&foo;
|
||
|
|
$bar = [ \&other ];
|
||
|
|
$d = Data::Dumper->new([\&other,$bar],['*other','bar']);
|
||
|
|
$d->Seen({ '*foo' => \&foo });
|
||
|
|
print $d->Dump;
|
||
|
|
|
||
|
|
|
||
|
|
=head1 BUGS
|
||
|
|
|
||
|
|
Due to limitations of Perl subroutine call semantics, you cannot pass an
|
||
|
|
array or hash. Prepend it with a C<\> to pass its reference instead. This
|
||
|
|
will be remedied in time, with the arrival of prototypes in later versions
|
||
|
|
of Perl. For now, you need to use the extended usage form, and prepend the
|
||
|
|
name with a C<*> to output it as a hash or array.
|
||
|
|
|
||
|
|
C<Data::Dumper> cheats with CODE references. If a code reference is
|
||
|
|
encountered in the structure being processed, an anonymous subroutine that
|
||
|
|
contains the string '"DUMMY"' will be inserted in its place, and a warning
|
||
|
|
will be printed if C<Purity> is set. You can C<eval> the result, but bear
|
||
|
|
in mind that the anonymous sub that gets created is just a placeholder.
|
||
|
|
Someday, perl will have a switch to cache-on-demand the string
|
||
|
|
representation of a compiled piece of code, I hope. If you have prior
|
||
|
|
knowledge of all the code refs that your data structures are likely
|
||
|
|
to have, you can use the C<Seen> method to pre-seed the internal reference
|
||
|
|
table and make the dumped output point to them, instead. See L<EXAMPLES>
|
||
|
|
above.
|
||
|
|
|
||
|
|
The C<Useqq> flag is not honored by C<Dumpxs()> (it always outputs
|
||
|
|
strings in single quotes).
|
||
|
|
|
||
|
|
SCALAR objects have the weirdest looking C<bless> workaround.
|
||
|
|
|
||
|
|
|
||
|
|
=head1 AUTHOR
|
||
|
|
|
||
|
|
Gurusamy Sarathy gsar@umich.edu
|
||
|
|
|
||
|
|
Copyright (c) 1996-98 Gurusamy Sarathy. All rights reserved.
|
||
|
|
This program is free software; you can redistribute it and/or
|
||
|
|
modify it under the same terms as Perl itself.
|
||
|
|
|
||
|
|
|
||
|
|
=head1 VERSION
|
||
|
|
|
||
|
|
Version 2.10 (31 Oct 1998)
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
perl(1)
|
||
|
|
|
||
|
|
=cut
|