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package Script::Carp; |
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43401
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use Carp (); |
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66
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use strict; |
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use warnings; |
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3484
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6
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our $IGNORE_EVAL = 0; # for test |
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9
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my $_die = sub {}; |
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*CORE::GLOBAL::die = sub { |
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1
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224
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my ($package, $filename, $line) = caller; |
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1
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50
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33
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if (defined $_[0] and $_[0] =~/^Died /) { |
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0
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0
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$_die->(@_) |
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} elsif (defined $_[0] and $_[0] =~/ at $filename line $line\./) { |
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0
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0
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$_die->('Died ', @_); |
18
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} else { |
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1
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10
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$_die->('Died ', @_, " at $filename line $line.\n") |
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} |
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}; |
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$SIG{__DIE__} = sub { $_die->(@_) }; |
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24
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our $FLGS = |
25
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{ |
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-file => sub { |
27
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my ($args) = @_; |
28
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my $file = shift @$args; |
29
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Carp::croak("USAGE: use Script::Carp -file => 'file_name'") unless $file; |
30
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return sub { |
31
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my (@args) = @_; |
32
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my ($package, $filename, $line) = caller(1); |
33
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open my $out, ">", $file or die "cannot open file '$file'."; |
34
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print $out @args; |
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close $out; |
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}; |
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}, |
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-stop => sub { |
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return sub { print STDERR "Hit Enter to exit:"; <> }; |
40
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}, |
41
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-log => sub { |
42
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my ($args) = @_; |
43
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my $file = shift @$args; |
44
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Carp::croak("USAGE: use Script::Carp -log => 'file_name'") unless $file; |
45
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return sub { |
46
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my @args = @_; |
47
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open my $out, ">>", $file or die "cannot open file '$file'."; |
48
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print $out scalar localtime, "\n"; |
49
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print $out @args; |
50
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close $out; |
51
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}; |
52
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}, |
53
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-clip => sub { |
54
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eval "require Clipboard; Clipboard->import()"; |
55
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unless($@) { |
56
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my ($args) = @_; |
57
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return sub { |
58
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eval { |
59
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Clipboard->copy(join "", @_) if @_; |
60
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}; |
61
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if ($@) { |
62
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warn $@; |
63
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} |
64
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} |
65
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} else { |
66
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my $msg = "You need Clipboard module."; |
67
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warn $msg; |
68
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return sub {}; |
69
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} |
70
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}, |
71
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-beep => sub { |
72
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local $@; |
73
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eval "require Audio::Beep"; |
74
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unless ($@) { |
75
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my ($args) = @_; |
76
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$args->[0] ||= "c' d' e'"; |
77
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my $beep = $args->[0] =~/^-/ ? "c' d' e'" : shift @$args; |
78
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return sub { |
79
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Audio::Beep->new->play($beep); |
80
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} |
81
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} else { |
82
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my $msg = "You need Audio::Beep module."; |
83
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$msg .= ' you may need "modprobe pcspkr" and/or "xset b on"' if $^O =~/linux/i; |
84
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warn $msg; |
85
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return sub {}; |
86
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} |
87
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}, |
88
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-ignore_eval => sub { |
89
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# only for test |
90
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$IGNORE_EVAL = 1; |
91
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return sub { }; |
92
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}, |
93
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}; |
94
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95
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sub import { |
96
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3
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3
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31
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my ($self, @opt) = @_; |
97
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98
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3
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6
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my @subs; |
99
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3
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15
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while (@opt) { |
100
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4
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9
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my $flg = shift @opt; |
101
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4
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50
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15
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if (my $gen = $FLGS->{$flg}) { |
102
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4
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10
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push @subs, $gen->(\@opt); |
103
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} |
104
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} |
105
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3
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3
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20
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no warnings; |
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3
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6
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3
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1205
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106
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$_die = sub { |
107
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7
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7
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51
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my ($package, $filename, $line) = caller(1); |
108
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7
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37
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my @args = @_; |
109
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7
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50
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66
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54
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if (! $IGNORE_EVAL and defined $^S and $^S == 1) { |
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33
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110
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0
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0
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CORE::die @args; |
111
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} else { |
112
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7
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100
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359
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print STDERR @args, $IGNORE_EVAL ? '' : " at $filename line $line.\n"; |
113
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7
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57
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_auto_flush(); |
114
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7
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17
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for (@subs) { |
115
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12
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21
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_auto_flush(); |
116
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12
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34
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$_->(@args); |
117
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} |
118
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7
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100
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187
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exit 255 unless $IGNORE_EVAL; |
119
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} |
120
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3
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67
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}; |
121
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} |
122
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123
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sub _auto_flush { |
124
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19
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19
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33
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$| = 1; |
125
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19
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43
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my $fh = select; |
126
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19
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33
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select STDERR; |
127
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19
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25
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$| = 1; |
128
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19
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53
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select $fh; |
129
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} |
130
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131
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*setup = \&import; |
132
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133
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=head1 NAME |
134
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135
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Script::Carp - provide some ways to leave messages when script died |
136
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137
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=cut |
138
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139
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our $VERSION = '0.05'; |
140
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141
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142
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=head1 SYNOPSIS |
143
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144
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use this with options. |
145
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146
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use Script::Carp -stop; # display error and wait STDIN |
147
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use Script::Carp -file => "error.txt"; # write message to error.txt |
148
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use Script::Carp -stop, -file => "error.txt"; # mixed the above |
149
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use Script::Carp -log => "error_log.txt"; # append message to error_log.txt |
150
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use Script::Carp -beep => "c d e f g"; # beep |
151
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use Script::Carp -clip; # message is copied to clipboard |
152
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153
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use class method with options |
154
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155
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Script::Carp->setup(-stop); |
156
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Script::Carp->setup(-file => "error.txt"); |
157
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Script::Carp->setup(-log => "error_log.txt"); |
158
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Script::Carp->setup(-stop, -file => "error.txt"); |
159
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Script::Carp->setup(-beep => "c d e f g"); |
160
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Script::Carp->setup(-clip); |
161
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162
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=head1 DESCRIPTION |
163
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164
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When you write script on MS Windows and run it and then it died, |
165
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prompt window is immediately clesed and you cannot see any messages. |
166
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167
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For such case, this module is usefule. |
168
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169
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When You use this module with some options or use setup method with some options, |
170
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you can check error message, easily. |
171
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172
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=head1 OPTIONS |
173
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174
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options can be used with use Script::Carp or class method setup method. |
175
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176
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=head2 -stop |
177
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178
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use Script::Carp -stop; |
179
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180
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or |
181
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182
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Script::Carp->setup(-stop); |
183
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184
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When script died, display messages and wait STDIN. |
185
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186
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=head2 -file => 'file_name' |
187
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188
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use Script::Carp -file => 'file_name'; |
189
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190
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or |
191
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192
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Script::Carp->setup(-file => 'file_name'); |
193
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194
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195
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When script died, messages are written to "file_name". |
196
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197
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=head2 -log => 'log_file_name' |
198
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199
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use Script::Carp -log => 'log_file_name'; |
200
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201
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or |
202
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203
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Script::Carp->setup(-log => 'log_file_name'); |
204
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205
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It is like file, but it will not clear file content. |
206
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When script died, messages are appended to "log_file_name". |
207
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208
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=head2 -beep |
209
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210
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use Script::Carp -beep; |
211
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use Script::Carp -beep => "c d e f g"; |
212
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213
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or |
214
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215
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Script::Carp->setup(-beep); |
216
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Script::Carp->setup(-beep => "c d e f g"); |
217
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218
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beep when script died. It requires Audio::Beep module. |
219
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If you use Linux, you may need to 'modprobe pcspkr", 'xset -b on' |
220
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221
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=head2 -clip |
222
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223
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use Script::Carp -clip; |
224
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225
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or |
226
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227
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Script::Carp->setup(-clip); |
228
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message is copied to clipboard when script died. |
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It requires Clipboard module. |
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=head1 METHOD |
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=head2 setup |
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see L and L |
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=head1 IN eval BLOCK |
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240
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Script::Carp just die in eval block, error messages will be set to $@ as usual. |
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242
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use Script::Carp -stop; |
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eval { |
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die "Script::Carp is ignored?"; # Yes, Sctip::Carp is ignored. |
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}; |
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die $@ if $@; # Script::Carp work, here. |
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249
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=head1 AUTHOR |
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251
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Ktat, C<< >> |
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253
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=head1 BUGS |
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255
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Please report any bugs or feature requests to C, or through |
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the web interface at L. I will be notified, and then you'll |
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automatically be notified of progress on your bug as I make changes. |
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259
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=head1 SUPPORT |
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261
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You can find documentation for this module with the perldoc command. |
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263
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perldoc Script::Carp |
264
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265
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266
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You can also look for information at: |
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268
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=over 4 |
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270
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=item * RT: CPAN's request tracker |
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272
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L |
273
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274
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=item * AnnoCPAN: Annotated CPAN documentation |
275
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276
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L |
277
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278
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=item * CPAN Ratings |
279
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280
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L |
281
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282
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=item * Search CPAN |
283
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284
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L |
285
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286
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=back |
287
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288
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=head1 ACKNOWLEDGEMENTS |
289
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290
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=head1 COPYRIGHT & LICENSE |
291
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292
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Copyright 2009 Ktat, all rights reserved. |
293
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294
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This program is free software; you can redistribute it and/or modify it |
295
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under the same terms as Perl itself. |
296
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297
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298
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=cut |
299
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300
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1; # End of Script::Carp |