[perl5.git] / lib / dumpvar.pl

require 5.002;			# For (defined ref)
package dumpvar;

# Needed for PrettyPrinter only:

# require 5.001;  # Well, it coredumps anyway undef DB in 5.000 (not now)

# translate control chars to ^X - Randal Schwartz
# Modifications to print types by Peter Gordon v1.0

# Ilya Zakharevich -- patches after 5.001 (and some before ;-)

# Won't dump symbol tables and contents of debugged files by default

$winsize = 80 unless defined $winsize;


# Defaults

# $globPrint = 1;
$printUndef = 1 unless defined $printUndef;
$tick = "auto" unless defined $tick;
$unctrl = 'quote' unless defined $unctrl;
$subdump = 1;
$dumpReused = 0 unless defined $dumpReused;
$bareStringify = 1 unless defined $bareStringify;

sub main::dumpValue {
  local %address;
  local $^W=0;
  (print "undef\n"), return unless defined $_[0];
  (print &stringify($_[0]), "\n"), return unless ref $_[0];
  dumpvar::unwrap($_[0],0, $_[1]);
}

# This one is good for variable names:

sub unctrl {
	local($_) = @_;
	local($v) ; 

	return \$_ if ref \$_ eq "GLOB";
	s/([\001-\037\177])/'^'.pack('c',ord($1)^64)/eg;
	$_;
}

sub uniescape {
    join("",
	 map { $_ > 255 ? sprintf("\\x{%04X}", $_) : chr($_) }
	     unpack("U*", $_[0]));
}

sub stringify {
	local($_,$noticks) = @_;
	local($v) ; 
	my $tick = $tick;

	return 'undef' unless defined $_ or not $printUndef;
	return $_ . "" if ref \$_ eq 'GLOB';
	$_ = &{'overload::StrVal'}($_) 
	  if $bareStringify and ref $_ 
	    and %overload:: and defined &{'overload::StrVal'};
	
	if ($tick eq 'auto') {
	  if (/[\000-\011\013-\037\177]/) {
	    $tick = '"';
	  }else {
	    $tick = "'";
	  }
	}
	if ($tick eq "'") {
	  s/([\'\\])/\\$1/g;
	} elsif ($unctrl eq 'unctrl') {
	  s/([\"\\])/\\$1/g ;
	  s/([\000-\037\177])/'^'.pack('c',ord($1)^64)/eg;
	  # uniescape?
	  s/([\200-\377])/'\\0x'.sprintf('%2X',ord($1))/eg 
	    if $quoteHighBit;
	} elsif ($unctrl eq 'quote') {
	  s/([\"\\\$\@])/\\$1/g if $tick eq '"';
	  s/\033/\\e/g;
	  s/([\000-\037\177])/'\\c'.chr(ord($1)^64)/eg;
	}
	$_ = uniescape($_);
	s/([\200-\377])/'\\'.sprintf('%3o',ord($1))/eg if $quoteHighBit;
	($noticks || /^\d+(\.\d*)?\Z/) 
	  ? $_ 
	  : $tick . $_ . $tick;
}

sub ShortArray {
  my $tArrayDepth = $#{$_[0]} ; 
  $tArrayDepth = $#{$_[0]} < $arrayDepth-1 ? $#{$_[0]} : $arrayDepth-1 
    unless  $arrayDepth eq '' ; 
  my $shortmore = "";
  $shortmore = " ..." if $tArrayDepth < $#{$_[0]} ;
  if (!grep(ref $_, @{$_[0]})) {
    $short = "0..$#{$_[0]}  '" . 
      join("' '", @{$_[0]}[0..$tArrayDepth]) . "'$shortmore";
    return $short if length $short <= $compactDump;
  }
  undef;
}

sub DumpElem {
  my $short = &stringify($_[0], ref $_[0]);
  if ($veryCompact && ref $_[0]
      && (ref $_[0] eq 'ARRAY' and !grep(ref $_, @{$_[0]}) )) {
    my $end = "0..$#{$v}  '" . 
      join("' '", @{$_[0]}[0..$tArrayDepth]) . "'$shortmore";
  } elsif ($veryCompact && ref $_[0]
      && (ref $_[0] eq 'HASH') and !grep(ref $_, values %{$_[0]})) {
    my $end = 1;
	  $short = $sp . "0..$#{$v}  '" . 
	    join("' '", @{$v}[0..$tArrayDepth]) . "'$shortmore";
  } else {
    print "$short\n";
    unwrap($_[0],$_[1],$_[2]);
  }
}

sub unwrap {
    return if $DB::signal;
    local($v) = shift ; 
    local($s) = shift ; # extra no of spaces
    local($m) = shift ; # maximum recursion depth
    return if $m == 0;
    local(%v,@v,$sp,$value,$key,@sortKeys,$more,$shortmore,$short) ;
    local($tHashDepth,$tArrayDepth) ;

    $sp = " " x $s ;
    $s += 3 ; 

    # Check for reused addresses
    if (ref $v) { 
      my $val = $v;
      $val = &{'overload::StrVal'}($v) 
	if %overload:: and defined &{'overload::StrVal'};
      ($address) = $val =~ /(0x[0-9a-f]+)\)$/ ; 
      if (!$dumpReused && defined $address) { 
	$address{$address}++ ;
	if ( $address{$address} > 1 ) { 
	  print "${sp}-> REUSED_ADDRESS\n" ; 
	  return ; 
	} 
      }
    } elsif (ref \$v eq 'GLOB') {
      $address = "$v" . "";	# To avoid a bug with globs
      $address{$address}++ ;
      if ( $address{$address} > 1 ) { 
	print "${sp}*DUMPED_GLOB*\n" ; 
	return ; 
      } 
    }

    if (ref $v eq 'Regexp') {
      my $re = "$v";
      $re =~ s,/,\\/,g;
      print "$sp-> qr/$re/\n";
      return;
    }

    if ( UNIVERSAL::isa($v, 'HASH') ) { 
	@sortKeys = sort keys(%$v) ;
	undef $more ; 
	$tHashDepth = $#sortKeys ; 
	$tHashDepth = $#sortKeys < $hashDepth-1 ? $#sortKeys : $hashDepth-1
	  unless $hashDepth eq '' ; 
	$more = "....\n" if $tHashDepth < $#sortKeys ; 
	$shortmore = "";
	$shortmore = ", ..." if $tHashDepth < $#sortKeys ; 
	$#sortKeys = $tHashDepth ; 
	if ($compactDump && !grep(ref $_, values %{$v})) {
	  #$short = $sp . 
	  #  (join ', ', 
# Next row core dumps during require from DB on 5.000, even with map {"_"}
	  #   map {&stringify($_) . " => " . &stringify($v->{$_})} 
	  #   @sortKeys) . "'$shortmore";
	  $short = $sp;
	  my @keys;
	  for (@sortKeys) {
	    push @keys, &stringify($_) . " => " . &stringify($v->{$_});
	  }
	  $short .= join ', ', @keys;
	  $short .= $shortmore;
	  (print "$short\n"), return if length $short <= $compactDump;
	}
	for $key (@sortKeys) {
	    return if $DB::signal;
	    $value = $ {$v}{$key} ;
	    print "$sp", &stringify($key), " => ";
	    DumpElem $value, $s, $m-1;
	}
	print "$sp  empty hash\n" unless @sortKeys;
	print "$sp$more" if defined $more ;
    } elsif ( UNIVERSAL::isa($v, 'ARRAY') ) { 
	$tArrayDepth = $#{$v} ; 
	undef $more ; 
	$tArrayDepth = $#{$v} < $arrayDepth-1 ? $#{$v} : $arrayDepth-1 
	  if defined $arrayDepth && $arrayDepth ne '';
	$more = "....\n" if $tArrayDepth < $#{$v} ; 
	$shortmore = "";
	$shortmore = " ..." if $tArrayDepth < $#{$v} ;
	if ($compactDump && !grep(ref $_, @{$v})) {
	  if ($#$v >= 0) {
	    $short = $sp . "0..$#{$v}  " . 
	      join(" ", 
		   map {exists $v->[$_] ? stringify $v->[$_] : "empty"} ($[..$tArrayDepth)
		  ) . "$shortmore";
	  } else {
	    $short = $sp . "empty array";
	  }
	  (print "$short\n"), return if length $short <= $compactDump;
	}
	#if ($compactDump && $short = ShortArray($v)) {
	#  print "$short\n";
	#  return;
	#}
	for $num ($[ .. $tArrayDepth) {
	    return if $DB::signal;
	    print "$sp$num  ";
	    if (exists $v->[$num]) {
	        DumpElem $v->[$num], $s, $m-1;
	    } else {
	    	print "empty slot\n";
	    }
	}
	print "$sp  empty array\n" unless @$v;
	print "$sp$more" if defined $more ;  
    } elsif (  UNIVERSAL::isa($v, 'SCALAR') or ref $v eq 'REF' ) { 
	    print "$sp-> ";
	    DumpElem $$v, $s, $m-1;
    } elsif ( UNIVERSAL::isa($v, 'CODE') ) { 
	    print "$sp-> ";
	    dumpsub (0, $v);
    } elsif ( UNIVERSAL::isa($v, 'GLOB') ) {
      print "$sp-> ",&stringify($$v,1),"\n";
      if ($globPrint) {
	$s += 3;
	dumpglob($s, "{$$v}", $$v, 1);
      } elsif (defined ($fileno = fileno($v))) {
	print( (' ' x ($s+3)) .  "FileHandle({$$v}) => fileno($fileno)\n" );
      }
    } elsif (ref \$v eq 'GLOB') {
      if ($globPrint) {
	dumpglob($s, "{$v}", $v, 1) if $globPrint;
      } elsif (defined ($fileno = fileno(\$v))) {
	print( (' ' x $s) .  "FileHandle({$v}) => fileno($fileno)\n" );
      }
    }
}

sub matchvar {
  $_[0] eq $_[1] or 
    ($_[1] =~ /^([!~])(.)([\x00-\xff]*)/) and 
      ($1 eq '!') ^ (eval {($_[2] . "::" . $_[0]) =~ /$2$3/});
}

sub compactDump {
  $compactDump = shift if @_;
  $compactDump = 6*80-1 if $compactDump and $compactDump < 2;
  $compactDump;
}

sub veryCompact {
  $veryCompact = shift if @_;
  compactDump(1) if !$compactDump and $veryCompact;
  $veryCompact;
}

sub unctrlSet {
  if (@_) {
    my $in = shift;
    if ($in eq 'unctrl' or $in eq 'quote') {
      $unctrl = $in;
    } else {
      print "Unknown value for `unctrl'.\n";
    }
  }
  $unctrl;
}

sub quote {
  if (@_ and $_[0] eq '"') {
    $tick = '"';
    $unctrl = 'quote';
  } elsif (@_ and $_[0] eq 'auto') {
    $tick = 'auto';
    $unctrl = 'quote';
  } elsif (@_) {		# Need to set
    $tick = "'";
    $unctrl = 'unctrl';
  }
  $tick;
}

sub dumpglob {
    return if $DB::signal;
    my ($off,$key, $val, $all) = @_;
    local(*entry) = $val;
    my $fileno;
    if (($key !~ /^_</ or $dumpDBFiles) and defined $entry) {
      print( (' ' x $off) . "\$", &unctrl($key), " = " );
      DumpElem $entry, 3+$off;
    }
    if (($key !~ /^_</ or $dumpDBFiles) and @entry) {
      print( (' ' x $off) . "\@$key = (\n" );
      unwrap(\@entry,3+$off) ;
      print( (' ' x $off) .  ")\n" );
    }
    if ($key ne "main::" && $key ne "DB::" && %entry
	&& ($dumpPackages or $key !~ /::$/)
	&& ($key !~ /^_</ or $dumpDBFiles)
	&& !($package eq "dumpvar" and $key eq "stab")) {
      print( (' ' x $off) . "\%$key = (\n" );
      unwrap(\%entry,3+$off) ;
      print( (' ' x $off) .  ")\n" );
    }
    if (defined ($fileno = fileno(*entry))) {
      print( (' ' x $off) .  "FileHandle($key) => fileno($fileno)\n" );
    }
    if ($all) {
      if (defined &entry) {
	dumpsub($off, $key);
      }
    }
}

sub CvGV_name_or_bust {
  my $in = shift;
  return if $skipCvGV;		# Backdoor to avoid problems if XS broken...
  $in = \&$in;			# Hard reference...
  eval {require Devel::Peek; 1} or return;
  my $gv = Devel::Peek::CvGV($in) or return;
  *$gv{PACKAGE} . '::' . *$gv{NAME};
}

sub dumpsub {
    my ($off,$sub) = @_;
    my $ini = $sub;
    my $s;
    $sub = $1 if $sub =~ /^\{\*(.*)\}$/;
    my $subref = defined $1 ? \&$sub : \&$ini;
    my $place = $DB::sub{$sub} || (($s = $subs{"$subref"}) && $DB::sub{$s})
      || (($s = CvGV_name_or_bust($subref)) && $DB::sub{$s})
      || ($subdump && ($s = findsubs("$subref")) && $DB::sub{$s});
    $place = '???' unless defined $place;
    $s = $sub unless defined $s;
    print( (' ' x $off) .  "&$s in $place\n" );
}

sub findsubs {
  return undef unless %DB::sub;
  my ($addr, $name, $loc);
  while (($name, $loc) = each %DB::sub) {
    $addr = \&$name;
    $subs{"$addr"} = $name;
  }
  $subdump = 0;
  $subs{ shift() };
}

sub main::dumpvar {
    my ($package,@vars) = @_;
    local(%address,$key,$val,$^W);
    $package .= "::" unless $package =~ /::$/;
    *stab = *{"main::"};
    while ($package =~ /(\w+?::)/g){
      *stab = $ {stab}{$1};
    }
    local $TotalStrings = 0;
    local $Strings = 0;
    local $CompleteTotal = 0;
    while (($key,$val) = each(%stab)) {
      return if $DB::signal;
      next if @vars && !grep( matchvar($key, $_), @vars );
      if ($usageOnly) {
	globUsage(\$val, $key)
	  if ($package ne 'dumpvar' or $key ne 'stab')
	     and ref(\$val) eq 'GLOB';
      } else {
	dumpglob(0,$key, $val);
      }
    }
    if ($usageOnly) {
      print "String space: $TotalStrings bytes in $Strings strings.\n";
      $CompleteTotal += $TotalStrings;
      print "Grand total = $CompleteTotal bytes (1 level deep) + overhead.\n";
    }
}

sub scalarUsage {
  my $size = length($_[0]);
  $TotalStrings += $size;
  $Strings++;
  $size;
}

sub arrayUsage {		# array ref, name
  my $size = 0;
  map {$size += scalarUsage($_)} @{$_[0]};
  my $len = @{$_[0]};
  print "\@$_[1] = $len item", ($len > 1 ? "s" : ""),
    " (data: $size bytes)\n"
      if defined $_[1];
  $CompleteTotal +=  $size;
  $size;
}

sub hashUsage {		# hash ref, name
  my @keys = keys %{$_[0]};
  my @values = values %{$_[0]};
  my $keys = arrayUsage \@keys;
  my $values = arrayUsage \@values;
  my $len = @keys;
  my $total = $keys + $values;
  print "\%$_[1] = $len item", ($len > 1 ? "s" : ""),
    " (keys: $keys; values: $values; total: $total bytes)\n"
      if defined $_[1];
  $total;
}

sub globUsage {			# glob ref, name
  local *name = *{$_[0]};
  $total = 0;
  $total += scalarUsage $name if defined $name;
  $total += arrayUsage \@name, $_[1] if @name;
  $total += hashUsage \%name, $_[1] if %name and $_[1] ne "main::" 
    and $_[1] ne "DB::";   #and !($package eq "dumpvar" and $key eq "stab"));
  $total;
}

sub packageUsage {
  my ($package,@vars) = @_;
  $package .= "::" unless $package =~ /::$/;
  local *stab = *{"main::"};
  while ($package =~ /(\w+?::)/g){
    *stab = $ {stab}{$1};
  }
  local $TotalStrings = 0;
  local $CompleteTotal = 0;
  my ($key,$val);
  while (($key,$val) = each(%stab)) {
    next if @vars && !grep($key eq $_,@vars);
    globUsage \$val, $key unless $package eq 'dumpvar' and $key eq 'stab';
  }
  print "String space: $TotalStrings.\n";
  $CompleteTotal += $TotalStrings;
  print "\nGrand total = $CompleteTotal bytes\n";
}

1;
Commit	Line	Data
d338d6fe	1	require 5.002; # For (defined ref)
	2	package dumpvar;
	3
	4	# Needed for PrettyPrinter only:
	5
	6	# require 5.001; # Well, it coredumps anyway undef DB in 5.000 (not now)
	7
	8	# translate control chars to ^X - Randal Schwartz
	9	# Modifications to print types by Peter Gordon v1.0
	10
	11	# Ilya Zakharevich -- patches after 5.001 (and some before ;-)
	12
	13	# Won't dump symbol tables and contents of debugged files by default
	14
	15	$winsize = 80 unless defined $winsize;
	16
	17
	18	# Defaults
	19
	20	# $globPrint = 1;
	21	$printUndef = 1 unless defined $printUndef;
54d04a52	22	$tick = "auto" unless defined $tick;
d338d6fe	23	$unctrl = 'quote' unless defined $unctrl;
54d04a52	24	$subdump = 1;
22fae026	25	$dumpReused = 0 unless defined $dumpReused;
ee239bfe	26	$bareStringify = 1 unless defined $bareStringify;
d338d6fe	27
	28	sub main::dumpValue {
	29	local %address;
b2391ea8	30	local $^W=0;
d338d6fe	31	(print "undef\n"), return unless defined $_[0];
d338d6fe	32	(print &stringify($_[0]), "\n"), return unless ref $_[0];
d03c2a1b	33	dumpvar::unwrap($_[0],0, $_[1]);
d338d6fe	34	}
	35
	36	# This one is good for variable names:
	37
	38	sub unctrl {
	39	local($_) = @_;
	40	local($v) ;
	41
	42	return \$_ if ref \$_ eq "GLOB";
	43	s/([\001-\037\177])/'^'.pack('c',ord($1)^64)/eg;
	44	$_;
	45	}
	46
f8543d02 A	47	sub uniescape {
	48	join("",
	49	map { $_ > 255 ? sprintf("\\x{%04X}", $_) : chr($_) }
	50	unpack("U*", $_[0]));
	51	}
	52
d338d6fe	53	sub stringify {
	54	local($_,$noticks) = @_;
	55	local($v) ;
54d04a52	56	my $tick = $tick;
d338d6fe	57
	58	return 'undef' unless defined $_ or not $printUndef;
	59	return $_ . "" if ref \$_ eq 'GLOB';
ee239bfe IZ	60	$_ = &{'overload::StrVal'}($_)
ee239bfe IZ	61	if $bareStringify and ref $_
475342a6	62	and %overload:: and defined &{'overload::StrVal'};
ee239bfe	63
54d04a52 IZ	64	if ($tick eq 'auto') {
	65	if (/[\000-\011\013-\037\177]/) {
	66	$tick = '"';
	67	}else {
	68	$tick = "'";
	69	}
	70	}
d338d6fe	71	if ($tick eq "'") {
	72	s/([\'\\])/\\$1/g;
	73	} elsif ($unctrl eq 'unctrl') {
	74	s/([\"\\])/\\$1/g ;
	75	s/([\000-\037\177])/'^'.pack('c',ord($1)^64)/eg;
f8543d02	76	# uniescape?
d338d6fe	77	s/([\200-\377])/'\\0x'.sprintf('%2X',ord($1))/eg
	78	if $quoteHighBit;
	79	} elsif ($unctrl eq 'quote') {
	80	s/([\"\\\$\@])/\\$1/g if $tick eq '"';
	81	s/\033/\\e/g;
	82	s/([\000-\037\177])/'\\c'.chr(ord($1)^64)/eg;
	83	}
f8543d02	84	$_ = uniescape($_);
d338d6fe	85	s/([\200-\377])/'\\'.sprintf('%3o',ord($1))/eg if $quoteHighBit;
	86	($noticks \|\| /^\d+(\.\d*)?\Z/)
	87	? $_
	88	: $tick . $_ . $tick;
	89	}
	90
	91	sub ShortArray {
	92	my $tArrayDepth = $#{$_[0]} ;
	93	$tArrayDepth = $#{$_[0]} < $arrayDepth-1 ? $#{$_[0]} : $arrayDepth-1
	94	unless $arrayDepth eq '' ;
	95	my $shortmore = "";
	96	$shortmore = " ..." if $tArrayDepth < $#{$_[0]} ;
	97	if (!grep(ref $_, @{$_[0]})) {
	98	$short = "0..$#{$_[0]} '" .
	99	join("' '", @{$_[0]}[0..$tArrayDepth]) . "'$shortmore";
	100	return $short if length $short <= $compactDump;
	101	}
	102	undef;
	103	}
	104
	105	sub DumpElem {
	106	my $short = &stringify($_[0], ref $_[0]);
	107	if ($veryCompact && ref $_[0]
	108	&& (ref $_[0] eq 'ARRAY' and !grep(ref $_, @{$_[0]}) )) {
	109	my $end = "0..$#{$v} '" .
	110	join("' '", @{$_[0]}[0..$tArrayDepth]) . "'$shortmore";
	111	} elsif ($veryCompact && ref $_[0]
	112	&& (ref $_[0] eq 'HASH') and !grep(ref $_, values %{$_[0]})) {
	113	my $end = 1;
	114	$short = $sp . "0..$#{$v} '" .
	115	join("' '", @{$v}[0..$tArrayDepth]) . "'$shortmore";
	116	} else {
	117	print "$short\n";
d03c2a1b	118	unwrap($_[0],$_[1],$_[2]);
d338d6fe	119	}
	120	}
	121
	122	sub unwrap {
	123	return if $DB::signal;
	124	local($v) = shift ;
	125	local($s) = shift ; # extra no of spaces
d03c2a1b MJD	126	local($m) = shift ; # maximum recursion depth
d03c2a1b MJD	127	return if $m == 0;
ee239bfe	128	local(%v,@v,$sp,$value,$key,@sortKeys,$more,$shortmore,$short) ;
d338d6fe	129	local($tHashDepth,$tArrayDepth) ;
	130
	131	$sp = " " x $s ;
	132	$s += 3 ;
	133
	134	# Check for reused addresses
	135	if (ref $v) {
ee239bfe IZ	136	my $val = $v;
ee239bfe IZ	137	$val = &{'overload::StrVal'}($v)
475342a6	138	if %overload:: and defined &{'overload::StrVal'};
ee239bfe	139	($address) = $val =~ /(0x[0-9a-f]+)\)$/ ;
22fae026	140	if (!$dumpReused && defined $address) {
d338d6fe	141	$address{$address}++ ;
	142	if ( $address{$address} > 1 ) {
	143	print "${sp}-> REUSED_ADDRESS\n" ;
	144	return ;
	145	}
	146	}
	147	} elsif (ref \$v eq 'GLOB') {
	148	$address = "$v" . ""; # To avoid a bug with globs
	149	$address{$address}++ ;
	150	if ( $address{$address} > 1 ) {
	151	print "${sp}DUMPED_GLOB\n" ;
	152	return ;
	153	}
	154	}
	155
7894fbab GS	156	if (ref $v eq 'Regexp') {
	157	my $re = "$v";
	158	$re =~ s,/,\\/,g;
	159	print "$sp-> qr/$re/\n";
	160	return;
	161	}
	162
74b5f52c	163	if ( UNIVERSAL::isa($v, 'HASH') ) {
d338d6fe	164	@sortKeys = sort keys(%$v) ;
	165	undef $more ;
	166	$tHashDepth = $#sortKeys ;
	167	$tHashDepth = $#sortKeys < $hashDepth-1 ? $#sortKeys : $hashDepth-1
	168	unless $hashDepth eq '' ;
	169	$more = "....\n" if $tHashDepth < $#sortKeys ;
	170	$shortmore = "";
	171	$shortmore = ", ..." if $tHashDepth < $#sortKeys ;
	172	$#sortKeys = $tHashDepth ;
	173	if ($compactDump && !grep(ref $_, values %{$v})) {
	174	#$short = $sp .
	175	# (join ', ',
	176	# Next row core dumps during require from DB on 5.000, even with map {"_"}
	177	# map {&stringify($_) . " => " . &stringify($v->{$_})}
	178	# @sortKeys) . "'$shortmore";
	179	$short = $sp;
	180	my @keys;
	181	for (@sortKeys) {
	182	push @keys, &stringify($_) . " => " . &stringify($v->{$_});
	183	}
	184	$short .= join ', ', @keys;
	185	$short .= $shortmore;
	186	(print "$short\n"), return if length $short <= $compactDump;
	187	}
	188	for $key (@sortKeys) {
	189	return if $DB::signal;
	190	$value = $ {$v}{$key} ;
	191	print "$sp", &stringify($key), " => ";
d03c2a1b	192	DumpElem $value, $s, $m-1;
d338d6fe	193	}
	194	print "$sp empty hash\n" unless @sortKeys;
	195	print "$sp$more" if defined $more ;
74b5f52c	196	} elsif ( UNIVERSAL::isa($v, 'ARRAY') ) {
d338d6fe	197	$tArrayDepth = $#{$v} ;
	198	undef $more ;
	199	$tArrayDepth = $#{$v} < $arrayDepth-1 ? $#{$v} : $arrayDepth-1
600d99fa	200	if defined $arrayDepth && $arrayDepth ne '';
d338d6fe	201	$more = "....\n" if $tArrayDepth < $#{$v} ;
	202	$shortmore = "";
	203	$shortmore = " ..." if $tArrayDepth < $#{$v} ;
	204	if ($compactDump && !grep(ref $_, @{$v})) {
	205	if ($#$v >= 0) {
54d04a52 IZ	206	$short = $sp . "0..$#{$v} " .
54d04a52 IZ	207	join(" ",
d9182636 GS	208	map {exists $v->[$_] ? stringify $v->[$_] : "empty"} ($[..$tArrayDepth)
d9182636 GS	209	) . "$shortmore";
d338d6fe	210	} else {
	211	$short = $sp . "empty array";
	212	}
	213	(print "$short\n"), return if length $short <= $compactDump;
	214	}
	215	#if ($compactDump && $short = ShortArray($v)) {
	216	# print "$short\n";
	217	# return;
	218	#}
	219	for $num ($[ .. $tArrayDepth) {
	220	return if $DB::signal;
	221	print "$sp$num ";
d9182636	222	if (exists $v->[$num]) {
d03c2a1b	223	DumpElem $v->[$num], $s, $m-1;
d9182636 GS	224	} else {
	225	print "empty slot\n";
	226	}
d338d6fe	227	}
	228	print "$sp empty array\n" unless @$v;
	229	print "$sp$more" if defined $more ;
74b5f52c	230	} elsif ( UNIVERSAL::isa($v, 'SCALAR') or ref $v eq 'REF' ) {
d338d6fe	231	print "$sp-> ";
d03c2a1b	232	DumpElem $$v, $s, $m-1;
74b5f52c	233	} elsif ( UNIVERSAL::isa($v, 'CODE') ) {
54d04a52 IZ	234	print "$sp-> ";
54d04a52 IZ	235	dumpsub (0, $v);
74b5f52c	236	} elsif ( UNIVERSAL::isa($v, 'GLOB') ) {
d338d6fe	237	print "$sp-> ",&stringify($$v,1),"\n";
	238	if ($globPrint) {
	239	$s += 3;
	240	dumpglob($s, "{$$v}", $$v, 1);
	241	} elsif (defined ($fileno = fileno($v))) {
	242	print( (' ' x ($s+3)) . "FileHandle({$$v}) => fileno($fileno)\n" );
	243	}
	244	} elsif (ref \$v eq 'GLOB') {
	245	if ($globPrint) {
	246	dumpglob($s, "{$v}", $v, 1) if $globPrint;
	247	} elsif (defined ($fileno = fileno(\$v))) {
	248	print( (' ' x $s) . "FileHandle({$v}) => fileno($fileno)\n" );
	249	}
	250	}
	251	}
	252
	253	sub matchvar {
	254	$_[0] eq $_[1] or
b2391ea8	255	($_[1] =~ /^([!~])(.)([\x00-\xff]*)/) and
b2391ea8	256	($1 eq '!') ^ (eval {($_[2] . "::" . $_[0]) =~ /$2$3/});
d338d6fe	257	}
	258
	259	sub compactDump {
	260	$compactDump = shift if @_;
	261	$compactDump = 6*80-1 if $compactDump and $compactDump < 2;
	262	$compactDump;
	263	}
	264
	265	sub veryCompact {
	266	$veryCompact = shift if @_;
	267	compactDump(1) if !$compactDump and $veryCompact;
	268	$veryCompact;
	269	}
	270
	271	sub unctrlSet {
	272	if (@_) {
	273	my $in = shift;
	274	if ($in eq 'unctrl' or $in eq 'quote') {
	275	$unctrl = $in;
	276	} else {
	277	print "Unknown value for `unctrl'.\n";
	278	}
	279	}
	280	$unctrl;
	281	}
	282
	283	sub quote {
	284	if (@_ and $_[0] eq '"') {
	285	$tick = '"';
	286	$unctrl = 'quote';
54d04a52 IZ	287	} elsif (@_ and $_[0] eq 'auto') {
	288	$tick = 'auto';
	289	$unctrl = 'quote';
d338d6fe	290	} elsif (@_) { # Need to set
	291	$tick = "'";
	292	$unctrl = 'unctrl';
	293	}
	294	$tick;
	295	}
	296
	297	sub dumpglob {
	298	return if $DB::signal;
	299	my ($off,$key, $val, $all) = @_;
	300	local(*entry) = $val;
	301	my $fileno;
54d04a52	302	if (($key !~ /^_</ or $dumpDBFiles) and defined $entry) {
d338d6fe	303	print( (' ' x $off) . "\$", &unctrl($key), " = " );
	304	DumpElem $entry, 3+$off;
	305	}
475342a6	306	if (($key !~ /^_</ or $dumpDBFiles) and @entry) {
d338d6fe	307	print( (' ' x $off) . "\@$key = (\n" );
	308	unwrap(\@entry,3+$off) ;
	309	print( (' ' x $off) . ")\n" );
	310	}
475342a6	311	if ($key ne "main::" && $key ne "DB::" && %entry
d338d6fe	312	&& ($dumpPackages or $key !~ /::$/)
54d04a52	313	&& ($key !~ /^_</ or $dumpDBFiles)
d338d6fe	314	&& !($package eq "dumpvar" and $key eq "stab")) {
	315	print( (' ' x $off) . "\%$key = (\n" );
	316	unwrap(\%entry,3+$off) ;
	317	print( (' ' x $off) . ")\n" );
	318	}
	319	if (defined ($fileno = fileno(*entry))) {
	320	print( (' ' x $off) . "FileHandle($key) => fileno($fileno)\n" );
	321	}
	322	if ($all) {
	323	if (defined &entry) {
54d04a52	324	dumpsub($off, $key);
d338d6fe	325	}
	326	}
	327	}
	328
83ee9e09 GS	329	sub CvGV_name_or_bust {
	330	my $in = shift;
	331	return if $skipCvGV; # Backdoor to avoid problems if XS broken...
	332	$in = \&$in; # Hard reference...
	333	eval {require Devel::Peek; 1} or return;
	334	my $gv = Devel::Peek::CvGV($in) or return;
	335	$gv{PACKAGE} . '::' . $gv{NAME};
	336	}
	337
54d04a52 IZ	338	sub dumpsub {
54d04a52 IZ	339	my ($off,$sub) = @_;
83ee9e09 GS	340	my $ini = $sub;
83ee9e09 GS	341	my $s;
54d04a52	342	$sub = $1 if $sub =~ /^\{\(.)\}$/;
83ee9e09 GS	343	my $subref = defined $1 ? \&$sub : \&$ini;
	344	my $place = $DB::sub{$sub} \|\| (($s = $subs{"$subref"}) && $DB::sub{$s})
	345	\|\| (($s = CvGV_name_or_bust($subref)) && $DB::sub{$s})
	346	\|\| ($subdump && ($s = findsubs("$subref")) && $DB::sub{$s});
54d04a52	347	$place = '???' unless defined $place;
83ee9e09 GS	348	$s = $sub unless defined $s;
83ee9e09 GS	349	print( (' ' x $off) . "&$s in $place\n" );
54d04a52 IZ	350	}
	351
	352	sub findsubs {
475342a6	353	return undef unless %DB::sub;
54d04a52 IZ	354	my ($addr, $name, $loc);
	355	while (($name, $loc) = each %DB::sub) {
	356	$addr = \&$name;
	357	$subs{"$addr"} = $name;
	358	}
	359	$subdump = 0;
	360	$subs{ shift() };
	361	}
	362
d338d6fe	363	sub main::dumpvar {
d338d6fe	364	my ($package,@vars) = @_;
b2391ea8	365	local(%address,$key,$val,$^W);
d338d6fe	366	$package .= "::" unless $package =~ /::$/;
	367	stab = {"main::"};
	368	while ($package =~ /(\w+?::)/g){
	369	*stab = $ {stab}{$1};
	370	}
	371	local $TotalStrings = 0;
	372	local $Strings = 0;
	373	local $CompleteTotal = 0;
	374	while (($key,$val) = each(%stab)) {
	375	return if $DB::signal;
	376	next if @vars && !grep( matchvar($key, $_), @vars );
	377	if ($usageOnly) {
4c82ae22 GS	378	globUsage(\$val, $key)
	379	if ($package ne 'dumpvar' or $key ne 'stab')
	380	and ref(\$val) eq 'GLOB';
d338d6fe	381	} else {
	382	dumpglob(0,$key, $val);
	383	}
	384	}
	385	if ($usageOnly) {
	386	print "String space: $TotalStrings bytes in $Strings strings.\n";
	387	$CompleteTotal += $TotalStrings;
	388	print "Grand total = $CompleteTotal bytes (1 level deep) + overhead.\n";
	389	}
	390	}
	391
	392	sub scalarUsage {
	393	my $size = length($_[0]);
	394	$TotalStrings += $size;
	395	$Strings++;
	396	$size;
	397	}
	398
	399	sub arrayUsage { # array ref, name
	400	my $size = 0;
	401	map {$size += scalarUsage($_)} @{$_[0]};
	402	my $len = @{$_[0]};
	403	print "\@$_[1] = $len item", ($len > 1 ? "s" : ""),
	404	" (data: $size bytes)\n"
	405	if defined $_[1];
	406	$CompleteTotal += $size;
	407	$size;
	408	}
	409
	410	sub hashUsage { # hash ref, name
	411	my @keys = keys %{$_[0]};
	412	my @values = values %{$_[0]};
	413	my $keys = arrayUsage \@keys;
	414	my $values = arrayUsage \@values;
	415	my $len = @keys;
	416	my $total = $keys + $values;
	417	print "\%$_[1] = $len item", ($len > 1 ? "s" : ""),
	418	" (keys: $keys; values: $values; total: $total bytes)\n"
	419	if defined $_[1];
	420	$total;
	421	}
	422
	423	sub globUsage { # glob ref, name
	424	local name = {$_[0]};
	425	$total = 0;
	426	$total += scalarUsage $name if defined $name;
475342a6 GS	427	$total += arrayUsage \@name, $_[1] if @name;
475342a6 GS	428	$total += hashUsage \%name, $_[1] if %name and $_[1] ne "main::"
d338d6fe	429	and $_[1] ne "DB::"; #and !($package eq "dumpvar" and $key eq "stab"));
	430	$total;
	431	}
	432
	433	sub packageUsage {
	434	my ($package,@vars) = @_;
	435	$package .= "::" unless $package =~ /::$/;
	436	local stab = {"main::"};
	437	while ($package =~ /(\w+?::)/g){
	438	*stab = $ {stab}{$1};
	439	}
	440	local $TotalStrings = 0;
	441	local $CompleteTotal = 0;
	442	my ($key,$val);
	443	while (($key,$val) = each(%stab)) {
	444	next if @vars && !grep($key eq $_,@vars);
	445	globUsage \$val, $key unless $package eq 'dumpvar' and $key eq 'stab';
	446	}
	447	print "String space: $TotalStrings.\n";
	448	$CompleteTotal += $TotalStrings;
	449	print "\nGrand total = $CompleteTotal bytes\n";
	450	}
	451
	452	1;
	453