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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#! /usr/bin/python2.7
"""Create a TAGS file for Python programs, usable with GNU Emacs.
usage: eptags pyfiles...
The output TAGS file is usable with Emacs version 18, 19, 20.
Tagged are:
- functions (even inside other defs or classes)
- classes
eptags warns about files it cannot open.
eptags will not give warnings about duplicate tags.
BUGS:
Because of tag duplication (methods with the same name in different
classes), TAGS files are not very useful for most object-oriented
python projects.
"""
import sys,re
expr = r'^[ \t]*(def|class)[ \t]+([a-zA-Z_][a-zA-Z0-9_]*)[ \t]*[:\(]'
matcher = re.compile(expr)
def treat_file(filename, outfp):
"""Append tags found in file named 'filename' to the open file 'outfp'"""
try:
fp = open(filename, 'r')
except:
sys.stderr.write('Cannot open %s\n'%filename)
return
charno = 0
lineno = 0
tags = []
size = 0
while 1:
line = fp.readline()
if not line:
break
lineno = lineno + 1
m = matcher.search(line)
if m:
tag = m.group(0) + '\177%d,%d\n' % (lineno, charno)
tags.append(tag)
size = size + len(tag)
charno = charno + len(line)
outfp.write('\f\n%s,%d\n' % (filename,size))
for tag in tags:
outfp.write(tag)
def main():
outfp = open('TAGS', 'w')
for filename in sys.argv[1:]:
treat_file(filename, outfp)
if __name__=="__main__":
main()