Hi all
The task is the following: We have an array of words for example
["anyone", "cancel", "declare", "perlmonks"]. We need to print the word, if it contains an "a" and also the number of "e"-s in that word. The syntax has to be: "word: number". Easy, right? Here is a perl program that does this and is very easy to understand:
#!/usr/bin/perl -w
use strict;
my @words = ("anyone", "cancel", "declare", "perlmonks");
my $count = 0;
foreach (@words) {
if ($words[$count] =~ m/a/i) {
my $number = () = $words[$count] =~ /e/gi;
print "$words[$count]: $number\n";
}
$count ++;
}
This outputs:
anyone: 1
cancel: 1
declare: 2
Just for fun, I am searching for the shortest perl one-liner that does the same. This is the shortest version I could come up with, with my current knowledge of perl:
perl -e 'for('anyone','cancel','declare','perlmonks'){$i=()=/e/g;print
+"$_: $i\n"if(/a/);}'
I was wondering what kind of magic solution the great minds here could come up with. Feel free to impress me! :)
Update: Current shortest version is
perl -E'/a/&&say"$_: ".y/e//for anyone,cancel,declare,perlmonks'
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