challenge 273, raku solutions

3 files changed, 40 insertions, 0 deletions

diff --git a/challenge-273/feng-chang/raku/ch-1.raku b/challenge-273/feng-chang/raku/ch-1.raku
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+++ b/challenge-273/feng-chang/raku/ch-1.raku
@@ -0,0 +1,5 @@
+#!/bin/env raku
+
+unit sub MAIN(Str:D $s, Str:D $c where $c.chars == 1);
+
+put ($s.comb.Bag{$c} / $s.chars * 100 + 0.5).Int;
diff --git a/challenge-273/feng-chang/raku/ch-2.raku b/challenge-273/feng-chang/raku/ch-2.raku
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+++ b/challenge-273/feng-chang/raku/ch-2.raku
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+#!/bin/env raku
+
+unit sub MAIN(Str:D $s);
+
+with $s.index('b') // -1 {
+    put ($_ ≥ 0) && ($_ > ($s.rindex('a') // -1));
+}
diff --git a/challenge-273/feng-chang/raku/test.raku b/challenge-273/feng-chang/raku/test.raku
new file mode 100755
index 0000000000..110f6e8c09
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+++ b/challenge-273/feng-chang/raku/test.raku
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+#!/bin/env raku
+
+# The Weekly Challenge 273
+use Test;
+
+sub pwc-test(Str:D $script, Bool :$deeply? = False, *@input) {
+    my ($expect, $assertion) = @input.splice(*-2, 2);
+    my $p = run $script, |@input, :out;
+    if $deeply {
+        is-deeply $p.out.slurp(:close).chomp.words.Bag, $expect, $assertion;
+    } else {
+        is $p.out.slurp(:close).chomp, $expect, $assertion;
+    }
+}
+
+# Task 1, Percentage of Character
+pwc-test './ch-1.raku', <perl e>,      25, 'Percentage of Character: $str = "perl",      $char = "e" => 25';
+pwc-test './ch-1.raku', <java a>,      50, 'Percentage of Character: $str = "java",      $char = "a" => 50';
+pwc-test './ch-1.raku', <python m>,     0, 'Percentage of Character: $str = "phthon",    $char = "m" => 0';
+pwc-test './ch-1.raku', <ada a>,       67, 'Percentage of Character: $str = "ada",       $char = "a" => 67';
+pwc-test './ch-1.raku', <ballerina l>, 22, 'Percentage of Character: $str = "ballerina", $char = "l" => 22';
+pwc-test './ch-1.raku', <analitik k>,  13, 'Percentage of Character: $str = "analitik",  $char = "k" => 13';
+
+# Task 2, B After A
+pwc-test './ch-2.raku', 'aabb', 'True',  'B After A: aabb => true';
+pwc-test './ch-2.raku', 'abab', 'False', 'B After A: abab => false';
+pwc-test './ch-2.raku', 'aaa',  'False', 'B After A: aaa  => false';
+pwc-test './ch-2.raku', 'bbb',  'True',  'B After A: bbb  => true';