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#############################################################################
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## Name: select.pm
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## Purpose: Safe::World::select
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## Author: Graciliano M. P.
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## Modified by:
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## Created: 08/09/2003
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## RCS-ID:
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## Copyright: (c) 2003 Graciliano M. P.
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## Licence: This program is free software; you can redistribute it and/or
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## modify it under the same terms as Perl itself
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#############################################################################
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package Safe::World::select ;
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1
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1
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use strict qw(vars);
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1
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1
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use vars qw($VERSION @ISA) ;
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61
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$VERSION = '0.02' ;
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1
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1
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no warnings ;
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1
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34
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##########
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# SCOPES #
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##########
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1
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1
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use Safe::World::Scope ;
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1
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54
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my $SCOPE_Safe_World = new Safe::World::Scope('Safe::World',undef,1) ;
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1
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1
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use vars qw($Safe_World_NOW $Safe_World_EVALX) ;
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2
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1
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1411
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*Safe_World_NOW = \$Safe::World::NOW ;
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*Safe_World_EVALX = \$Safe::World::EVALX ;
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#######
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# NEW #
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#######
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39
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sub new {
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41
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## my @call = caller(4) ; print main::STDOUT "SELECT NEW>> $_[1] [$Safe_World_NOW][$Safe_World_NOW->{SELECT}] @call\n" ;
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1
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1
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0
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7
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return undef if $_[1]->{DESTROIED} ;
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1
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4
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my $eval_err = $@ ;
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1
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4
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my $this = bless({} , __PACKAGE__) ;
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48
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1
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$this->{PREVWORLD} = $Safe_World_NOW ;
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1
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$Safe_World_NOW = $this->{WORLD} = $_[1] ;
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51
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1
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$this->{WORLD}->{SELECT} = {} if !$this->{WORLD}->{SELECT} ;
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1
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$this->{WORLD}->{SHARING} = {} if !$this->{WORLD}->{SHARING} ;
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1
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my $prevstdout = &Safe::World::SELECT( "$this->{WORLD}->{ROOT}\::STDOUT" ) ;
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1
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2
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$this->{WORLD}->{SELECT}{PREVSTDOUT} = $this->{PREVSTDOUT} = [$prevstdout , \*{$prevstdout}] ;
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1
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97
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56
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57
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1
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7
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$this->{WORLD}->{SELECT}{PREVSTDERR} = $this->{PREVSTDERR} = *main::STDERR{IO} ;
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1
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5
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$this->{WORLD}->{SELECT}{PREVSUBWARN} = $this->{PREVSUBWARN} = $SIG{__WARN__} ;
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1
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5
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$this->{WORLD}->{SELECT}{PREVSUBDIE} = $this->{PREVSUBDIE} = $SIG{__DIE__} ;
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60
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61
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1
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8
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open (STDERR,">&$this->{WORLD}->{ROOT}::STDERR") ;
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1
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6
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$SIG{__WARN__} = \&print_stderr ;
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1
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5
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$SIG{__DIE__} = \&handle_die ;
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64
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65
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1
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2
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foreach my $var ( keys %{ $this->{WORLD}->{SHARING} } ) {
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1
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6
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66
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0
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0
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$this->{WORLD}->{SHARING}{$var}{OUT} = &out_get_ref_copy($var) ;
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0
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0
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0
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if ( $this->{WORLD}->{SHARING}{$var}{IN} ) {
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68
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0
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0
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&out_set($var , $this->{WORLD}->{SHARING}{$var}{IN}) ;
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69
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0
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0
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$this->{WORLD}->{SHARING}{$var}{IN} = undef ;
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70
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}
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71
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}
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72
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73
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1
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50
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33
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7
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if ( $this->{WORLD}->{TIESTDOUT} && $this->{WORLD}->{TIESTDOUT}->{AUTO_FLUSH} ) { $| = 1 ;}
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0
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0
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74
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75
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1
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50
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13
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$this->{WORLD}->set('$SAFEWORLD', $this->{WORLD} , 1 ) if !$this->{WORLD}->{NO_SET_SAFEWORLD} ;
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76
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77
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1
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50
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13
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if ( $this->{WORLD}->{ONSELECT} ) {
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78
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0
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0
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my $sub = $this->{WORLD}->{ONSELECT} ;
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0
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0
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&$sub($this->{WORLD}) ;
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80
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}
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81
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82
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1
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6
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$SCOPE_Safe_World->call('sync_evalx') ; ## Safe::World::sync_evalx() ;
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83
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84
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1
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2
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$@ = $eval_err ;
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85
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86
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1
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6
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return $this ;
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87
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}
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89
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###########
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90
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# DESTROY #
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91
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###########
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92
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93
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sub DESTROY {
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94
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my $this = shift ;
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95
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96
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##print main::STDOUT "SELECT DESTROY>> $this\n" ;
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97
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98
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my $eval_err = $@ ;
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99
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100
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%{$this->{WORLD}->{SELECT}} = () ;
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101
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102
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$this->{WORLD}->set('$SAFEWORLD', \undef) if !$this->{WORLD}->{NO_SET_SAFEWORLD} ;
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103
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104
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if ( $this->{WORLD}->{ONUNSELECT} ) {
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105
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my $sub = $this->{WORLD}->{ONUNSELECT} ;
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106
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&$sub($this->{WORLD}) ;
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107
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}
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108
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109
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*main::STDERR = $this->{PREVSTDERR} ;
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110
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$SIG{__WARN__} = $this->{PREVSUBWARN} ;
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111
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$SIG{__DIE__} = $this->{PREVSUBDIE} ;
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112
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113
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foreach my $var ( keys %{ $this->{WORLD}->{SHARING} } ) {
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114
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$this->{WORLD}->{SHARING}{$var}{IN} = &out_get_ref_copy($var) ;
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115
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if ( $this->{WORLD}->{SHARING}{$var}{OUT} ) {
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116
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&out_set($var , $this->{WORLD}->{SHARING}{$var}{OUT}) ;
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117
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$this->{WORLD}->{SHARING}{$var}{OUT} = undef ;
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118
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}
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119
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}
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120
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121
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&Safe::World::SELECT($this->{PREVSTDOUT}) ;
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122
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123
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$Safe_World_NOW = (ref($this->{PREVWORLD}) eq 'Safe::World') ? $this->{PREVWORLD} : undef ;
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124
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125
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$SCOPE_Safe_World->call('sync_evalx') ; ## Safe::World::sync_evalx() ;
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126
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127
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$@ = $eval_err ;
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128
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129
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return ;
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130
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}
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131
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132
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####################
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133
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# OUT_GET_REF_COPY #
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134
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####################
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135
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136
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sub out_get_ref_copy {
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137
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0
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0
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0
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my ( $varfull ) = @_ ;
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138
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139
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0
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my ($var_tp,$var) = ( $varfull =~ /([\$\@\%\*])(\S+)/ ) ;
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140
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0
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$var =~ s/^{'(\S+)'}$/$1/ ;
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141
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0
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$var =~ s/^main::// ;
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142
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143
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0
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0
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if ($var_tp eq '$') { return ${'main::'.$var} ;}
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0
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0
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0
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0
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0
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144
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0
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elsif ($var_tp eq '@') { return [@{'main::'.$var}] ;}
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0
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145
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0
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elsif ($var_tp eq '%') { return {%{'main::'.$var}} ;}
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0
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146
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0
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elsif ($var_tp eq '*') { return \*{'main::'.$var} ;}
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0
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147
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0
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else { ++$Safe_World_EVALX ; return eval("package main ; \\$varfull") ;}
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0
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148
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}
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149
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150
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###########
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151
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# OUT_SET #
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152
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###########
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153
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154
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sub out_set {
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155
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0
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0
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0
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my ( $var , $val ) = @_ ;
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156
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157
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0
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my ($var_tp,$name) = ( $var =~ /([\$\@\%\*])(\S+)/ );
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158
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0
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$name =~ s/^{'(\S+)'}$/$1/ ;
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159
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0
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$name =~ s/^main::// ;
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160
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161
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0
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0
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if ($var_tp eq '$') { ${'main::'.$name} = $val ;}
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0
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0
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0
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0
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0
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162
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0
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elsif ($var_tp eq '@') { @{'main::'.$name} = @{$val} ;}
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0
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0
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163
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0
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elsif ($var_tp eq '%') { %{'main::'.$name} = %{$val} ;}
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0
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0
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164
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0
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elsif ($var_tp eq '*') { *{'main::'.$name} = $val ;}
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0
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165
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0
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else { ++$Safe_World_EVALX ; eval("$var = \$val ;") ;}
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0
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166
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}
|
167
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168
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################
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169
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# PRINT_STDERR #
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170
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################
|
171
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172
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sub print_stderr {
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173
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0
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0
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0
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$Safe_World_NOW->print_stderr(@_) ; return ;
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0
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174
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}
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175
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176
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##############
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177
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# HANDLE_DIE #
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178
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##############
|
179
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180
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|
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sub handle_die {
|
181
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0
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0
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0
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0
|
|
my $core_exit = ($_[0] =~ /#CORE::GLOBAL::exit#/) ? 1 : undef ;
|
182
|
|
|
|
|
|
|
|
183
|
0
|
0
|
|
|
|
|
$Safe_World_NOW->{EXIT} = 1 if $core_exit ;
|
184
|
0
|
0
|
|
|
|
|
$Safe_World_NOW->print_stderr(@_) if !$core_exit ;
|
185
|
0
|
0
|
|
|
|
|
$Safe_World_NOW->close if $core_exit ;
|
186
|
|
|
|
|
|
|
|
187
|
0
|
0
|
|
|
|
|
$@ = undef if $core_exit ;
|
188
|
|
|
|
|
|
|
|
189
|
0
|
|
|
|
|
|
return ;
|
190
|
|
|
|
|
|
|
}
|
191
|
|
|
|
|
|
|
|
192
|
|
|
|
|
|
|
#######
|
193
|
|
|
|
|
|
|
# END #
|
194
|
|
|
|
|
|
|
#######
|
195
|
|
|
|
|
|
|
|
196
|
|
|
|
|
|
|
1;
|
197
|
|
|
|
|
|
|
|