Re: I need a Regex to get my Dirty Data Whiter.

Given that most printable characters appear in consecutive runs in most popular character sets, it's easy to build a character class which only includes them. for example, for 7-bit ASCII you can write something like this to only print character between the space (0x20) and the tilde (0x7E).

while (<>) {
  s/[^ -~]//g;
  print;
}
[download]

--
<http://www.dave.org.uk>

European Perl Conference - Sept 22/24 2000, ICA, London
<http://www.yapc.org/Europe/>

Comment on Re: I need a Regex to get my Dirty Data Whiter. Download Code

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RE: Re: I need a Regex to get my Dirty Data Whiter. by merlyn (Sage) on Aug 03, 2000 at 16:54 UTC
Another way of doing that that usually benchmarks faster is a simple `tr`: `while (<>) { tr/ -~//cd; }` [download] -- Randal L. Schwartz, Perl hacker	[reply] [d/l]
RE: RE: Re: I need a Regex to get my Dirty Data Whiter. by davorg (Chancellor) on Aug 03, 2000 at 16:58 UTC
Yeah, but I _always_ forget about the /c modifier to `tr` :( -- <http://www.dave.org.uk> European Perl Conference - Sept 22/24 2000, ICA, London <http://www.yapc.org/Europe/>	[reply]