Re^4: Exact string matching

try this

foreach  ($cont =~ m/([a-z]{3})/g ){

 $hash{$_}++;
}
[download]

what do you mean by liner time? and lastly you need to modify the pattern depending on what you want, please work on it

Comment on Re^4: Exact string matching Download Code

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Re^5: Exact string matching by Corion (Patriarch) on Oct 16, 2011 at 16:30 UTC
Note that your approach will only return non-overlapping trigrams: `> perl -wle "print for 'howdoyoudo' =~ /([a-z]{3})/g" how doy oud` [download] I would advise the original poster to really work on the question and maybe search CPAN for Ngrams or Trigrams.	[reply] [d/l]