X-FeedAbuse: http://nntpfeed.proxad.net/abuse.pl feeded by 88.191.16.109
Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.dougwise.org!nntpfeed.proxad.net!nospam.fr.eu.org!talisker.lacave.net!lacave.net!not-for-mail
From: Quintus <sutniuq@gmx.net>
Newsgroups: comp.lang.ruby
Subject: Re: String#each_*slice* methods (like Enumerable#each_slice)
Date: Wed, 6 Apr 2011 13:42:25 -0500
Organization: Service de news de lacave.net
Lines: 37
Message-ID: <4D9CB445.8000504@gmx.net>
References: <BANLkTinMv0-L01+pwiiLc0Gruk+56B1GeQ@mail.gmail.com>
NNTP-Posting-Host: bristol.highgroove.com
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-Trace: talisker.lacave.net 1302115362 24251 65.111.164.187 (6 Apr 2011 18:42:42 GMT)
X-Complaints-To: abuse@lacave.net
NNTP-Posting-Date: Wed, 6 Apr 2011 18:42:42 +0000 (UTC)
In-Reply-To: <BANLkTinMv0-L01+pwiiLc0Gruk+56B1GeQ@mail.gmail.com>
X-Received-From: This message has been automatically forwarded from the ruby-talk mailing list by a gateway at comp.lang.ruby. If it is SPAM, it did not originate at comp.lang.ruby. Please report the original sender, and not us. Thanks! For more details about this gateway, please visit: http://blog.grayproductions.net/categories/the_gateway
X-Mail-Count: 381052
X-Ml-Name: ruby-talk
X-Rubymirror: Yes
X-Ruby-Talk: <4D9CB445.8000504@gmx.net>
Xref: x330-a1.tempe.blueboxinc.net comp.lang.ruby:2392

Am 06.04.2011 19:52, schrieb Aaron D. Gifford:
> So now for the question.  Is there a better way to accomplish
> something similar?  I'm not debating whether to do it as a monkey
> patch or not--that's irrelevant to me. But is there a more efficient
> way to slice up strings and iterate over fixed sized chunks?
> 
> One alternative each_bslice implementation I tried used
> str.bytes.to_a.map(&:chr).each_slice(x){|c| p c.join} but it was a bit
> slower in benchmarks versus the str.scan method.
> 
> Aaron out.
> 
> 

Use Enumarators:
================================
irb(main):001:0> str = "ÄÄÄÖÖÖÜÜÜ"
=> "ÄÄÄÖÖÖÜÜÜ"
irb(main):002:0> str.chars.each_slice(3){|x| p x}
["Ä", "Ä", "Ä"]
["Ö", "Ö", "Ö"]
["Ü", "Ü", "Ü"]
=> nil
irb(main):003:0> str.bytes.each_slice(3){|x| p x}
[195, 132, 195]
[132, 195, 132]
[195, 150, 195]
[150, 195, 150]
[195, 156, 195]
[156, 195, 156]
=> nil
irb(main):004:0>
================================

Vale,
Marvin