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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#!/bin/sh
# Written by: John Ellson <ellson@research.att.com>
error() { echo "$0: $*" >&2; exit 1; }
# Try $EDITOR first, else try vim or vi
editor="$EDITOR"
[ -x "$editor" ] || editor="/usr/bin/vim"
[ -x "$editor" ] || editor="/usr/bin/vi"
[ -x "$editor" ] || error "EDITOR not found or not executable";
default="noname.gv"
if test -z "$1"; then
f="$default"
if ! test -f "$f"; then
if ! test -w .; then error "directory `pwd` is not writable"; fi
cat >"$f" <<EOF
digraph G {
graph [layout=dot rankdir=LR]
// This is just an example for you to use as a template.
// Edit as you like. Whenever you save a legal graph
// the layout in the graphviz window will be updated.
vim [href="http://www.vim.org/"]
dot [href="http://www.graphviz.org/"]
vimdot [href="file:///usr/bin/vimdot"]
{vim dot} -> vimdot
}
EOF
fi
else
f="$1"
fi
if ! test -w "$f"; then error "$f is not writable"; fi
# dot -Txlib watches the file $f for changes using inotify()
dot -Txlib "$f" 2>/dev/null &
# open an editor on the file $f (could be any editor; gvim &'s itself)
exec $editor "$f"