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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use strict;
use warnings;
use Test::More tests => 10;
use MRO::Compat;
{
package AAA; our @ISA = qw//;
package BBB; our @ISA = qw/AAA/;
package CCC; our @ISA = qw/AAA/;
package DDD; our @ISA = qw/AAA/;
package EEE; our @ISA = qw/BBB CCC DDD/;
package FFF; our @ISA = qw/EEE DDD/;
package GGG; our @ISA = qw/FFF/;
package UNIVERSAL; our @ISA = qw/DDD/;
}
is_deeply(
mro::get_linear_isa('GGG'),
[ 'GGG', 'FFF', 'EEE', 'BBB', 'AAA', 'CCC', 'DDD' ],
"get_linear_isa for GGG",
);
is_deeply(
[sort @{mro::get_isarev('GGG')}],
[],
"get_isarev for GGG",
);
is_deeply(
[sort @{mro::get_isarev('DDD')}],
[ 'EEE', 'FFF', 'GGG', 'UNIVERSAL' ],
"get_isarev for DDD",
);
is_deeply(
[sort @{mro::get_isarev('AAA')}],
[ 'BBB', 'CCC', 'DDD', 'EEE', 'FFF', 'GGG', 'UNIVERSAL' ],
"get_isarev for AAA",
);
ok(mro::is_universal('UNIVERSAL'), "UNIVERSAL is_universal");
ok(mro::is_universal('DDD'), "DDD is_universal");
ok(mro::is_universal('AAA'), "AAA is_universal");
ok(!mro::is_universal('MRO::Compat'), "MRO::Compat !is_universal");
ok(!mro::is_universal('BBB'), "BBB !is_universal");
ok(!mro::is_universal('FFF'), "FFF !is_universal");