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Additional simplifications are possible e.g. no need to loop over the word list three times, and why use hashrefs and make yourself do extra typing when you could use a regular hash.
#!/usr/bin/perl use strict; use warnings; use Data::Dumper; my @wordsInOrder; while (<>) { push @wordsInOrder, split /\W+/, lc($_); } my (%single, %double, %triple); my $index = 0; foreach my $word (@wordsInOrder) { $single{$word}++; my $next_word = $wordsInOrder[$index+1]; if($next_word) { $double{"$word $next_word"}++; } my $next_next_word = $wordsInOrder[$index+2]; if($next_next_word) { $triple{"$word $next_word $next_next_word"}++; } $index++; } foreach my $singlet (sort_by_frequency(\%single)) { print "$singlet\n"; foreach my $doublet (sort_by_frequency(\%double)) { next unless $doublet =~ /^$singlet\b/; print "\t$doublet\n"; foreach my $triplet (sort_by_frequency(\%triple)) { next unless $triplet =~ /^$doublet\b/; print "\t\t$triplet\n"; } } } sub sort_by_frequency { my $h = shift; return sort { $h->{$b} <=> $h->{$a} } keys %$h; }
This also only matches whole words rather than fragments. Best wishes with the wedding anyway!

In reply to Re: Vow Triptych by Arunbear
in thread Vow Triptych by hashED

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