1 | require 5.002; # For (defined ref)
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2 | package dumpvar;
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3 |
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4 | # Needed for PrettyPrinter only:
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5 |
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6 | # require 5.001; # Well, it coredumps anyway undef DB in 5.000 (not now)
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7 |
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8 | # translate control chars to ^X - Randal Schwartz
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9 | # Modifications to print types by Peter Gordon v1.0
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10 |
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11 | # Ilya Zakharevich -- patches after 5.001 (and some before ;-)
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12 |
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13 | # Won't dump symbol tables and contents of debugged files by default
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14 |
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15 | $winsize = 80 unless defined $winsize;
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16 |
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17 |
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18 | # Defaults
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19 |
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20 | # $globPrint = 1;
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21 | $printUndef = 1 unless defined $printUndef;
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22 | $tick = "auto" unless defined $tick;
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23 | $unctrl = 'quote' unless defined $unctrl;
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24 | $subdump = 1;
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25 | $dumpReused = 0 unless defined $dumpReused;
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26 | $bareStringify = 1 unless defined $bareStringify;
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27 |
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28 | sub main::dumpValue {
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29 | local %address;
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30 | local $^W=0;
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31 | (print "undef\n"), return unless defined $_[0];
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32 | (print &stringify($_[0]), "\n"), return unless ref $_[0];
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33 | push @_, -1 if @_ == 1;
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34 | dumpvar::unwrap($_[0], 0, $_[1]);
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35 | }
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36 |
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37 | # This one is good for variable names:
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38 |
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39 | sub unctrl {
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40 | local($_) = @_;
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41 | local($v) ;
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42 |
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43 | return \$_ if ref \$_ eq "GLOB";
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44 | s/([\001-\037\177])/'^'.pack('c',ord($1)^64)/eg;
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45 | $_;
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46 | }
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47 |
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48 | sub uniescape {
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49 | join("",
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50 | map { $_ > 255 ? sprintf("\\x{%04X}", $_) : chr($_) }
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51 | unpack("U*", $_[0]));
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52 | }
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53 |
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54 | sub stringify {
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55 | local($_,$noticks) = @_;
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56 | local($v) ;
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57 | my $tick = $tick;
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58 |
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59 | return 'undef' unless defined $_ or not $printUndef;
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60 | return $_ . "" if ref \$_ eq 'GLOB';
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61 | $_ = &{'overload::StrVal'}($_)
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62 | if $bareStringify and ref $_
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63 | and %overload:: and defined &{'overload::StrVal'};
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64 |
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65 | if ($tick eq 'auto') {
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66 | if (/[\000-\011\013-\037\177]/) {
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67 | $tick = '"';
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68 | }else {
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69 | $tick = "'";
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70 | }
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71 | }
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72 | if ($tick eq "'") {
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73 | s/([\'\\])/\\$1/g;
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74 | } elsif ($unctrl eq 'unctrl') {
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75 | s/([\"\\])/\\$1/g ;
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76 | s/([\000-\037\177])/'^'.pack('c',ord($1)^64)/eg;
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77 | # uniescape?
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78 | s/([\200-\377])/'\\0x'.sprintf('%2X',ord($1))/eg
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79 | if $quoteHighBit;
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80 | } elsif ($unctrl eq 'quote') {
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81 | s/([\"\\\$\@])/\\$1/g if $tick eq '"';
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82 | s/\033/\\e/g;
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83 | s/([\000-\037\177])/'\\c'._escaped_ord($1)/eg;
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84 | }
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85 | $_ = uniescape($_);
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86 | s/([\200-\377])/'\\'.sprintf('%3o',ord($1))/eg if $quoteHighBit;
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87 | ($noticks || /^\d+(\.\d*)?\Z/)
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88 | ? $_
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89 | : $tick . $_ . $tick;
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90 | }
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91 |
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92 | # Ensure a resulting \ is escaped to be \\
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93 | sub _escaped_ord {
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94 | my $chr = shift;
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95 | $chr = chr(ord($chr)^64);
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96 | $chr =~ s{\\}{\\\\}g;
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97 | return $chr;
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98 | }
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99 |
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100 | sub ShortArray {
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101 | my $tArrayDepth = $#{$_[0]} ;
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102 | $tArrayDepth = $#{$_[0]} < $arrayDepth-1 ? $#{$_[0]} : $arrayDepth-1
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103 | unless $arrayDepth eq '' ;
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104 | my $shortmore = "";
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105 | $shortmore = " ..." if $tArrayDepth < $#{$_[0]} ;
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106 | if (!grep(ref $_, @{$_[0]})) {
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107 | $short = "0..$#{$_[0]} '" .
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108 | join("' '", @{$_[0]}[0..$tArrayDepth]) . "'$shortmore";
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109 | return $short if length $short <= $compactDump;
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110 | }
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111 | undef;
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112 | }
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113 |
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114 | sub DumpElem {
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115 | my $short = &stringify($_[0], ref $_[0]);
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116 | if ($veryCompact && ref $_[0]
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117 | && (ref $_[0] eq 'ARRAY' and !grep(ref $_, @{$_[0]}) )) {
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118 | my $end = "0..$#{$v} '" .
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119 | join("' '", @{$_[0]}[0..$tArrayDepth]) . "'$shortmore";
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120 | } elsif ($veryCompact && ref $_[0]
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121 | && (ref $_[0] eq 'HASH') and !grep(ref $_, values %{$_[0]})) {
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122 | my $end = 1;
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123 | $short = $sp . "0..$#{$v} '" .
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124 | join("' '", @{$v}[0..$tArrayDepth]) . "'$shortmore";
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125 | } else {
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126 | print "$short\n";
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127 | unwrap($_[0],$_[1],$_[2]) if ref $_[0];
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128 | }
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129 | }
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130 |
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131 | sub unwrap {
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132 | return if $DB::signal;
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133 | local($v) = shift ;
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134 | local($s) = shift ; # extra no of spaces
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135 | local($m) = shift ; # maximum recursion depth
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136 | return if $m == 0;
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137 | local(%v,@v,$sp,$value,$key,@sortKeys,$more,$shortmore,$short) ;
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138 | local($tHashDepth,$tArrayDepth) ;
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139 |
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140 | $sp = " " x $s ;
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141 | $s += 3 ;
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142 |
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143 | # Check for reused addresses
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144 | if (ref $v) {
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145 | my $val = $v;
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146 | $val = &{'overload::StrVal'}($v)
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147 | if %overload:: and defined &{'overload::StrVal'};
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148 | # Match type and address.
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149 | # Unblessed references will look like TYPE(0x...)
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150 | # Blessed references will look like Class=TYPE(0x...)
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151 | ($start_part, $val) = split /=/,$val;
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152 | $val = $start_part unless defined $val;
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153 | ($item_type, $address) =
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154 | $val =~ /([^\(]+) # Keep stuff that's
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155 | # not an open paren
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156 | \( # Skip open paren
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157 | (0x[0-9a-f]+) # Save the address
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158 | \) # Skip close paren
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159 | $/x; # Should be at end now
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160 |
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161 | if (!$dumpReused && defined $address) {
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162 | $address{$address}++ ;
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163 | if ( $address{$address} > 1 ) {
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164 | print "${sp}-> REUSED_ADDRESS\n" ;
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165 | return ;
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166 | }
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167 | }
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168 | } elsif (ref \$v eq 'GLOB') {
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169 | # This is a raw glob. Special handling for that.
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170 | $address = "$v" . ""; # To avoid a bug with globs
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171 | $address{$address}++ ;
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172 | if ( $address{$address} > 1 ) {
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173 | print "${sp}*DUMPED_GLOB*\n" ;
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174 | return ;
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175 | }
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176 | }
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177 |
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178 | if (ref $v eq 'Regexp') {
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179 | # Reformat the regexp to look the standard way.
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180 | my $re = "$v";
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181 | $re =~ s,/,\\/,g;
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182 | print "$sp-> qr/$re/\n";
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183 | return;
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184 | }
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185 |
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186 | if ( $item_type eq 'HASH' ) {
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187 | # Hash ref or hash-based object.
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188 | my @sortKeys = sort keys(%$v) ;
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189 | undef $more ;
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190 | $tHashDepth = $#sortKeys ;
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191 | $tHashDepth = $#sortKeys < $hashDepth-1 ? $#sortKeys : $hashDepth-1
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192 | unless $hashDepth eq '' ;
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193 | $more = "....\n" if $tHashDepth < $#sortKeys ;
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194 | $shortmore = "";
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195 | $shortmore = ", ..." if $tHashDepth < $#sortKeys ;
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196 | $#sortKeys = $tHashDepth ;
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197 | if ($compactDump && !grep(ref $_, values %{$v})) {
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198 | #$short = $sp .
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199 | # (join ', ',
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200 | # Next row core dumps during require from DB on 5.000, even with map {"_"}
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201 | # map {&stringify($_) . " => " . &stringify($v->{$_})}
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202 | # @sortKeys) . "'$shortmore";
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203 | $short = $sp;
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204 | my @keys;
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205 | for (@sortKeys) {
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206 | push @keys, &stringify($_) . " => " . &stringify($v->{$_});
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207 | }
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208 | $short .= join ', ', @keys;
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209 | $short .= $shortmore;
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210 | (print "$short\n"), return if length $short <= $compactDump;
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211 | }
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212 | for $key (@sortKeys) {
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213 | return if $DB::signal;
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214 | $value = $ {$v}{$key} ;
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215 | print "$sp", &stringify($key), " => ";
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216 | DumpElem $value, $s, $m-1;
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217 | }
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218 | print "$sp empty hash\n" unless @sortKeys;
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219 | print "$sp$more" if defined $more ;
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220 | } elsif ( $item_type eq 'ARRAY' ) {
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221 | # Array ref or array-based object. Also: undef.
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222 | # See how big the array is.
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223 | $tArrayDepth = $#{$v} ;
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224 | undef $more ;
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225 | # Bigger than the max?
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226 | $tArrayDepth = $#{$v} < $arrayDepth-1 ? $#{$v} : $arrayDepth-1
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227 | if defined $arrayDepth && $arrayDepth ne '';
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228 | # Yep. Don't show it all.
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229 | $more = "....\n" if $tArrayDepth < $#{$v} ;
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230 | $shortmore = "";
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231 | $shortmore = " ..." if $tArrayDepth < $#{$v} ;
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232 |
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233 | if ($compactDump && !grep(ref $_, @{$v})) {
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234 | if ($#$v >= 0) {
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235 | $short = $sp . "0..$#{$v} " .
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236 | join(" ",
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237 | map {exists $v->[$_] ? stringify $v->[$_] : "empty"} ($[..$tArrayDepth)
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238 | ) . "$shortmore";
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239 | } else {
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240 | $short = $sp . "empty array";
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241 | }
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242 | (print "$short\n"), return if length $short <= $compactDump;
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243 | }
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244 | #if ($compactDump && $short = ShortArray($v)) {
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245 | # print "$short\n";
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246 | # return;
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247 | #}
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248 | for $num ($[ .. $tArrayDepth) {
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249 | return if $DB::signal;
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250 | print "$sp$num ";
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251 | if (exists $v->[$num]) {
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252 | if (defined $v->[$num]) {
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253 | DumpElem $v->[$num], $s, $m-1;
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254 | }
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255 | else {
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256 | print "undef\n";
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257 | }
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258 | } else {
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259 | print "empty slot\n";
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260 | }
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261 | }
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262 | print "$sp empty array\n" unless @$v;
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263 | print "$sp$more" if defined $more ;
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264 | } elsif ( $item_type eq 'SCALAR' ) {
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265 | unless (defined $$v) {
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266 | print "$sp-> undef\n";
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267 | return;
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268 | }
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269 | print "$sp-> ";
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270 | DumpElem $$v, $s, $m-1;
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271 | } elsif ( $item_type eq 'REF' ) {
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272 | print "$sp-> $$v\n";
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273 | return unless defined $$v;
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274 | unwrap($$v, $s+3, $m-1);
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275 | } elsif ( $item_type eq 'CODE' ) {
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276 | # Code object or reference.
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277 | print "$sp-> ";
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278 | dumpsub (0, $v);
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279 | } elsif ( $item_type eq 'GLOB' ) {
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280 | # Glob object or reference.
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281 | print "$sp-> ",&stringify($$v,1),"\n";
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282 | if ($globPrint) {
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283 | $s += 3;
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284 | dumpglob($s, "{$$v}", $$v, 1, $m-1);
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285 | } elsif (defined ($fileno = fileno($v))) {
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286 | print( (' ' x ($s+3)) . "FileHandle({$$v}) => fileno($fileno)\n" );
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287 | }
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288 | } elsif (ref \$v eq 'GLOB') {
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289 | # Raw glob (again?)
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290 | if ($globPrint) {
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291 | dumpglob($s, "{$v}", $v, 1, $m-1) if $globPrint;
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292 | } elsif (defined ($fileno = fileno(\$v))) {
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293 | print( (' ' x $s) . "FileHandle({$v}) => fileno($fileno)\n" );
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294 | }
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295 | }
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296 | }
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297 |
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298 | sub matchlex {
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299 | (my $var = $_[0]) =~ s/.//;
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300 | $var eq $_[1] or
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301 | ($_[1] =~ /^([!~])(.)([\x00-\xff]*)/) and
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302 | ($1 eq '!') ^ (eval { $var =~ /$2$3/ });
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303 | }
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304 |
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305 | sub matchvar {
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306 | $_[0] eq $_[1] or
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307 | ($_[1] =~ /^([!~])(.)([\x00-\xff]*)/) and
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308 | ($1 eq '!') ^ (eval {($_[2] . "::" . $_[0]) =~ /$2$3/});
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309 | }
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310 |
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311 | sub compactDump {
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312 | $compactDump = shift if @_;
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313 | $compactDump = 6*80-1 if $compactDump and $compactDump < 2;
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314 | $compactDump;
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315 | }
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316 |
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317 | sub veryCompact {
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318 | $veryCompact = shift if @_;
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319 | compactDump(1) if !$compactDump and $veryCompact;
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320 | $veryCompact;
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321 | }
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322 |
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323 | sub unctrlSet {
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324 | if (@_) {
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325 | my $in = shift;
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326 | if ($in eq 'unctrl' or $in eq 'quote') {
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327 | $unctrl = $in;
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328 | } else {
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329 | print "Unknown value for `unctrl'.\n";
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330 | }
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331 | }
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332 | $unctrl;
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333 | }
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334 |
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335 | sub quote {
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336 | if (@_ and $_[0] eq '"') {
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337 | $tick = '"';
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338 | $unctrl = 'quote';
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339 | } elsif (@_ and $_[0] eq 'auto') {
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340 | $tick = 'auto';
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341 | $unctrl = 'quote';
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342 | } elsif (@_) { # Need to set
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343 | $tick = "'";
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344 | $unctrl = 'unctrl';
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345 | }
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346 | $tick;
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347 | }
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348 |
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349 | sub dumpglob {
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350 | return if $DB::signal;
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351 | my ($off,$key, $val, $all, $m) = @_;
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352 | local(*entry) = $val;
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353 | my $fileno;
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354 | if (($key !~ /^_</ or $dumpDBFiles) and defined $entry) {
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355 | print( (' ' x $off) . "\$", &unctrl($key), " = " );
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356 | DumpElem $entry, 3+$off, $m;
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357 | }
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358 | if (($key !~ /^_</ or $dumpDBFiles) and @entry) {
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359 | print( (' ' x $off) . "\@$key = (\n" );
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360 | unwrap(\@entry,3+$off,$m) ;
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361 | print( (' ' x $off) . ")\n" );
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362 | }
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363 | if ($key ne "main::" && $key ne "DB::" && %entry
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364 | && ($dumpPackages or $key !~ /::$/)
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365 | && ($key !~ /^_</ or $dumpDBFiles)
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366 | && !($package eq "dumpvar" and $key eq "stab")) {
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367 | print( (' ' x $off) . "\%$key = (\n" );
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368 | unwrap(\%entry,3+$off,$m) ;
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369 | print( (' ' x $off) . ")\n" );
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370 | }
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371 | if (defined ($fileno = fileno(*entry))) {
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372 | print( (' ' x $off) . "FileHandle($key) => fileno($fileno)\n" );
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373 | }
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374 | if ($all) {
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375 | if (defined &entry) {
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376 | dumpsub($off, $key);
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377 | }
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378 | }
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379 | }
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380 |
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381 | sub dumplex {
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382 | return if $DB::signal;
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383 | my ($key, $val, $m, @vars) = @_;
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384 | return if @vars && !grep( matchlex($key, $_), @vars );
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385 | local %address;
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386 | my $off = 0; # It reads better this way
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387 | my $fileno;
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388 | if (UNIVERSAL::isa($val,'ARRAY')) {
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389 | print( (' ' x $off) . "$key = (\n" );
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390 | unwrap($val,3+$off,$m) ;
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391 | print( (' ' x $off) . ")\n" );
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392 | }
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393 | elsif (UNIVERSAL::isa($val,'HASH')) {
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394 | print( (' ' x $off) . "$key = (\n" );
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395 | unwrap($val,3+$off,$m) ;
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396 | print( (' ' x $off) . ")\n" );
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397 | }
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398 | elsif (UNIVERSAL::isa($val,'IO')) {
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399 | print( (' ' x $off) . "FileHandle($key) => fileno($fileno)\n" );
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400 | }
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401 | # No lexical subroutines yet...
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402 | # elsif (UNIVERSAL::isa($val,'CODE')) {
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403 | # dumpsub($off, $$val);
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404 | # }
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405 | else {
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406 | print( (' ' x $off) . &unctrl($key), " = " );
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407 | DumpElem $$val, 3+$off, $m;
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408 | }
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409 | }
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410 |
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411 | sub CvGV_name_or_bust {
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412 | my $in = shift;
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413 | return if $skipCvGV; # Backdoor to avoid problems if XS broken...
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414 | $in = \&$in; # Hard reference...
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415 | eval {require Devel::Peek; 1} or return;
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416 | my $gv = Devel::Peek::CvGV($in) or return;
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417 | *$gv{PACKAGE} . '::' . *$gv{NAME};
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418 | }
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419 |
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420 | sub dumpsub {
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421 | my ($off,$sub) = @_;
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422 | my $ini = $sub;
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423 | my $s;
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424 | $sub = $1 if $sub =~ /^\{\*(.*)\}$/;
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425 | my $subref = defined $1 ? \&$sub : \&$ini;
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426 | my $place = $DB::sub{$sub} || (($s = $subs{"$subref"}) && $DB::sub{$s})
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427 | || (($s = CvGV_name_or_bust($subref)) && $DB::sub{$s})
|
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428 | || ($subdump && ($s = findsubs("$subref")) && $DB::sub{$s});
|
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429 | $place = '???' unless defined $place;
|
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430 | $s = $sub unless defined $s;
|
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431 | print( (' ' x $off) . "&$s in $place\n" );
|
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432 | }
|
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433 |
|
---|
434 | sub findsubs {
|
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435 | return undef unless %DB::sub;
|
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436 | my ($addr, $name, $loc);
|
---|
437 | while (($name, $loc) = each %DB::sub) {
|
---|
438 | $addr = \&$name;
|
---|
439 | $subs{"$addr"} = $name;
|
---|
440 | }
|
---|
441 | $subdump = 0;
|
---|
442 | $subs{ shift() };
|
---|
443 | }
|
---|
444 |
|
---|
445 | sub main::dumpvar {
|
---|
446 | my ($package,$m,@vars) = @_;
|
---|
447 | local(%address,$key,$val,$^W);
|
---|
448 | $package .= "::" unless $package =~ /::$/;
|
---|
449 | *stab = *{"main::"};
|
---|
450 | while ($package =~ /(\w+?::)/g){
|
---|
451 | *stab = $ {stab}{$1};
|
---|
452 | }
|
---|
453 | local $TotalStrings = 0;
|
---|
454 | local $Strings = 0;
|
---|
455 | local $CompleteTotal = 0;
|
---|
456 | while (($key,$val) = each(%stab)) {
|
---|
457 | return if $DB::signal;
|
---|
458 | next if @vars && !grep( matchvar($key, $_), @vars );
|
---|
459 | if ($usageOnly) {
|
---|
460 | globUsage(\$val, $key)
|
---|
461 | if ($package ne 'dumpvar' or $key ne 'stab')
|
---|
462 | and ref(\$val) eq 'GLOB';
|
---|
463 | } else {
|
---|
464 | dumpglob(0,$key, $val, 0, $m);
|
---|
465 | }
|
---|
466 | }
|
---|
467 | if ($usageOnly) {
|
---|
468 | print "String space: $TotalStrings bytes in $Strings strings.\n";
|
---|
469 | $CompleteTotal += $TotalStrings;
|
---|
470 | print "Grand total = $CompleteTotal bytes (1 level deep) + overhead.\n";
|
---|
471 | }
|
---|
472 | }
|
---|
473 |
|
---|
474 | sub scalarUsage {
|
---|
475 | my $size = length($_[0]);
|
---|
476 | $TotalStrings += $size;
|
---|
477 | $Strings++;
|
---|
478 | $size;
|
---|
479 | }
|
---|
480 |
|
---|
481 | sub arrayUsage { # array ref, name
|
---|
482 | my $size = 0;
|
---|
483 | map {$size += scalarUsage($_)} @{$_[0]};
|
---|
484 | my $len = @{$_[0]};
|
---|
485 | print "\@$_[1] = $len item", ($len > 1 ? "s" : ""),
|
---|
486 | " (data: $size bytes)\n"
|
---|
487 | if defined $_[1];
|
---|
488 | $CompleteTotal += $size;
|
---|
489 | $size;
|
---|
490 | }
|
---|
491 |
|
---|
492 | sub hashUsage { # hash ref, name
|
---|
493 | my @keys = keys %{$_[0]};
|
---|
494 | my @values = values %{$_[0]};
|
---|
495 | my $keys = arrayUsage \@keys;
|
---|
496 | my $values = arrayUsage \@values;
|
---|
497 | my $len = @keys;
|
---|
498 | my $total = $keys + $values;
|
---|
499 | print "\%$_[1] = $len item", ($len > 1 ? "s" : ""),
|
---|
500 | " (keys: $keys; values: $values; total: $total bytes)\n"
|
---|
501 | if defined $_[1];
|
---|
502 | $total;
|
---|
503 | }
|
---|
504 |
|
---|
505 | sub globUsage { # glob ref, name
|
---|
506 | local *name = *{$_[0]};
|
---|
507 | $total = 0;
|
---|
508 | $total += scalarUsage $name if defined $name;
|
---|
509 | $total += arrayUsage \@name, $_[1] if @name;
|
---|
510 | $total += hashUsage \%name, $_[1] if %name and $_[1] ne "main::"
|
---|
511 | and $_[1] ne "DB::"; #and !($package eq "dumpvar" and $key eq "stab"));
|
---|
512 | $total;
|
---|
513 | }
|
---|
514 |
|
---|
515 | sub packageUsage {
|
---|
516 | my ($package,@vars) = @_;
|
---|
517 | $package .= "::" unless $package =~ /::$/;
|
---|
518 | local *stab = *{"main::"};
|
---|
519 | while ($package =~ /(\w+?::)/g){
|
---|
520 | *stab = $ {stab}{$1};
|
---|
521 | }
|
---|
522 | local $TotalStrings = 0;
|
---|
523 | local $CompleteTotal = 0;
|
---|
524 | my ($key,$val);
|
---|
525 | while (($key,$val) = each(%stab)) {
|
---|
526 | next if @vars && !grep($key eq $_,@vars);
|
---|
527 | globUsage \$val, $key unless $package eq 'dumpvar' and $key eq 'stab';
|
---|
528 | }
|
---|
529 | print "String space: $TotalStrings.\n";
|
---|
530 | $CompleteTotal += $TotalStrings;
|
---|
531 | print "\nGrand total = $CompleteTotal bytes\n";
|
---|
532 | }
|
---|
533 |
|
---|
534 | 1;
|
---|
535 |
|
---|