Hello baxy77bax,
If I understand correctly your question and desired output one possible way is:
#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';
sub groupWithEachString {
my %hash;
$hash{$_}++ for (split //, shift);
my $str;
foreach my $character (sort keys %hash) {
$str .= $character x $hash{$character};
}
return $str;
}
my $str = "aaabbbabc";
say groupWithEachString($str);
__END__
$ perl test.pl
aaaabbbbc
Regarding your second question on how to repeat the process for multiple strings (simply concatenate the strings):
#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';
sub groupWithEachString {
my %hash;
$hash{$_}++ for (split //, shift);
my $str;
foreach my $character (sort keys %hash) {
$str .= $character x $hash{$character};
}
return $str;
}
my @strings = qw(aaabbbabc aaabbbabc);
my $concatString;
foreach my $string (@strings) {
$concatString .= $string;
}
say groupWithEachString($concatString);
__END__
$ perl test.pl
aaaaaaaabbbbbbbbcc
Update: Last part (replace character in a string):
#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';
sub groupWithEachString {
my %hash;
$hash{$_}++ for (split //, shift);
my $str;
foreach my $character (sort keys %hash) {
$str .= $character x $hash{$character};
}
return $str;
}
my @strings = qw(aaabbbabc aaabbbabc);
my $concatString;
foreach my $string (@strings) {
$concatString .= $string;
}
my $final = groupWithEachString($concatString);
say $final;
# Replace character in string
$final =~ tr/a/z/;
say $final;
__END__
$ perl test.pl
aaaaaaaabbbbbbbbcc
zzzzzzzzbbbbbbbbcc
Hope this helps, Thanos.
Seeking for Perl wisdom...on the process of learning...not there...yet!
