We don't bite newbies here... much PerlMonks

### Re: Sierpinski Triangle

by eyepopslikeamosquito (Chancellor)
 on Aug 17, 2002 at 16:16 UTC ( #190877=note: print w/replies, xml ) Need Help??

in reply to Sierpinski Triangle

Here is an alternative solution. This one is a little shorter and strict and warning safe. Also it does not emit an empty first line. I developed it from ideas in previous solutions posted to fwp@perl.org. See golf thread. If the alien golfers take up my challenge, it will be significantly shortened.

\$_=\$"x((1|1<<(pop||4))-1)."/\\ ";print,s,(?<=\\)..,\$&^"\017|",ge,s,\$,/\\,while+s+^ ++

Replies are listed 'Best First'.
Re: Re: Sierpinski Triangle
by eyepopslikeamosquito (Chancellor) on Aug 20, 2002 at 06:24 UTC

Update: The golf dream team of Ton Hospel, Eugene van der Pijll, Mtv Europe and Keith C Ivey whittled 15 strokes from my initial offering:

#!perl -l \$_=\$"x2**(pop||4);s'\$'/\\',print,s/(?<=\\)../\$&^aD^n8/egwhile+s\^ \\

Here are some other solutions (without default argument) they concocted during their fidgeting:

\$_=\$"x(1<<pop);print,s/(?<=\\)../\$&^"\17|"/egwhile+s^\n?\$^/\\\n^,s\^ \ +\ \$_=\$"x(1<<pop).\$/;print,s/(?<=\\)../\$&^"\17|"/egwhile+s^\$^/\\^,s\^ \\ -lX \$_=\$"x2**pop;print,s/(?<=\\)../\$&^"\17|"/egwhile+s*\$*/\\**s+^ ++ -lX \$_=\$"x2**pop;print,s/(?<=\\)../\$&^"\17|"/egwhile+s-^ (.*)-\$+/\\- -l \$_=\$"x2**pop;s'\$'/\\',print,s/(?<=\\)../\$&^"\17|"/egwhile+s\^ \\ -l \$_=\$"x2**pop;s'\$'/\\',print,s/(?<=\\)../\$&^aD^n8/egwhile+s\^ \\

Log In?
 Username: Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://190877]
help
Chatterbox?
 [Corion]: hippo, erix: That sounds promising :) [Corion]: erix: I misinterpreted that. It only allows to read a zipfile like a table, not reading a database from a zipfile :-( shmem is grabbed by nostalgia for Bolivia [erix]: aah, ok. [erix]: oh well, in each life some rain must fall [erix]: if you're interested in tsv file reading in pg, look at file_fdw

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (12)
As of 2018-02-23 15:21 GMT
Sections?
Information?
Find Nodes?
Leftovers?
Voting Booth?
When it is dark outside I am happiest to see ...

Results (302 votes). Check out past polls.

Notices?