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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Subject: Re: What language would you use?
From: Tom Christiansen <tchrist@mox.perl.com>
Date: 6 Nov 1994 15:14:51 GMT
Newsgroups: comp.lang.python,comp.lang.tcl,comp.lang.scheme,comp.lang.misc,comp.lang.perl
Message-Id: <39irtb$3t4@csnews.cs.Colorado.EDU>
References: <39b7ha$j9v@zeno.nscf.org> <39hhjp$lgn@csnews.cs.Colorado.EDU> <39hvsu$dus@mathserv.mps.ohio-state.edu>
[...]
If you're really into benchmarks, I'd love it if someone were to code up
the following problems in tcl, python, and scheme (and whatever else you'd
like). Separate versions (one optimized for speed, one for beauty :-) are
ok. Post your code so we can time it on our own systems.
0) Factorial Test (numerics and function calls)
(we did this already)
1) Regular Expressions Test
Read a file of (extended per egrep) regular expressions (one per line),
and apply those to all files whose names are listed on the command line.
Basically, an 'egrep -f' simulator. Test it with 20 "vt100" patterns
against a five /etc/termcap files. Tests using more elaborate patters
would also be interesting. Your code should not break if given hundreds
of regular expressions or binary files to scan.
2) Sorting Test
Sort an input file that consists of lines like this
var1=23 other=14 ditto=23 fred=2
such that each output line is sorted WRT to the number. Order
of output lines does not change. Resolve collisions using the
variable name. e.g.
fred=2 other=14 ditto=23 var1=23
Lines may be up to several kilobytes in length and contain
zillions of variables.
3) System Test
Given a list of directories, report any bogus symbolic links contained
anywhere in those subtrees. A bogus symbolic link is one that cannot
be resolved because it points to a nonexistent or otherwise
unresolvable file. Do *not* use an external find executable.
Directories may be very very deep. Print a warning immediately if the
system you're running on doesn't support symbolic links.
I'll post perl solutions if people post the others.
--tom
--
Tom Christiansen Perl Consultant, Gamer, Hiker tchrist@mox.perl.com
"But Billy! A *small* allowance prepares you for a lifetime of small
salaries and for your Social Security payments." --Family Circus