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