Week 5 Challenge 1 solution

1 files changed, 17 insertions, 0 deletions

diff --git a/challenge-005/fjwhittle/perl6/ch-1.p6 b/challenge-005/fjwhittle/perl6/ch-1.p6
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+++ b/challenge-005/fjwhittle/perl6/ch-1.p6
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+#!/usr/bin/env perl6
+
+use v6;
+
+#| Find anagrams of a word in given file
+unit sub MAIN(
+  Str $file #= file containing list of words
+          where { given .IO { .r && ( .l || .f) or die "Cannot read from $_" } },
+  $word #= word to find anagrams of
+);
+
+my $word-bag := $word.lc.comb(/ \w /).Bag;
+
+my @words = $file.IO.lines.unique.hyper.grep(*.chars > 2)
+                 .map: { .lc.comb(/ \w /).Bag => $_ };
+
+@words.race.grep(*.key === $word-bag)».value.unique(with => *.lc eq *.lc).join(', ').put;