晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //proc/thread-self/root/usr/share/perl5/vendor_perl/CPAN/Debug.pm
# -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*-
package CPAN::Debug;
use strict;
use vars qw($VERSION);

$VERSION = "5.5001";
# module is internal to CPAN.pm

%CPAN::DEBUG = qw[
                  CPAN              1
                  Index             2
                  InfoObj           4
                  Author            8
                  Distribution     16
                  Bundle           32
                  Module           64
                  CacheMgr        128
                  Complete        256
                  FTP             512
                  Shell          1024
                  Eval           2048
                  HandleConfig   4096
                  Tarzip         8192
                  Version       16384
                  Queue         32768
                  FirstTime     65536
];

$CPAN::DEBUG ||= 0;

#-> sub CPAN::Debug::debug ;
sub debug {
    my($self,$arg) = @_;

    my @caller;
    my $i = 0;
    while () {
        my(@c) = (caller($i))[0 .. ($i ? 3 : 2)];
        last unless defined $c[0];
        push @caller, \@c;
        for (0,3) {
            last if $_ > $#c;
            $c[$_] =~ s/.*:://;
        }
        for (1) {
            $c[$_] =~ s|.*/||;
        }
        last if ++$i>=3;
    }
    pop @caller;
    if ($CPAN::DEBUG{$caller[0][0]} & $CPAN::DEBUG) {
        if ($arg and ref $arg) {
            eval { require Data::Dumper };
            if ($@) {
                $CPAN::Frontend->myprint("Debug(\n" . $arg->as_string . ")\n");
            } else {
                $CPAN::Frontend->myprint("Debug(\n" . Data::Dumper::Dumper($arg) . ")\n");
            }
        } else {
            my $outer = "";
            local $" = ",";
            if (@caller>1) {
                $outer = ",[@{$caller[1]}]";
            }
            $CPAN::Frontend->myprint("Debug(@{$caller[0]}$outer): $arg\n");
        }
    }
}

1;

__END__

=head1 NAME

CPAN::Debug - internal debugging for CPAN.pm

=head1 LICENSE

This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

=cut

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