Solution to task 1

1 files changed, 68 insertions, 0 deletions

diff --git a/challenge-266/jo-37/perl/ch-1.pl b/challenge-266/jo-37/perl/ch-1.pl
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+++ b/challenge-266/jo-37/perl/ch-1.pl
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+#!/usr/bin/perl -s
+
+
+use v5.24;
+use Test2::V0;
+use List::MoreUtils 'singleton';
+
+our ($tests, $examples);
+
+run_tests() if $tests || $examples;	# does not return
+
+die <<EOS unless @ARGV;
+usage: $0 [-examples] [-tests] [SENTENCE...]
+
+-examples
+    run the examples from the challenge
+ 
+-tests
+    run some tests
+
+SENTENCE
+    a list of sentences
+
+EOS
+
+
+### Input and Output
+
+say "('", join("', '", uncommon_words(@ARGV)), "')";
+
+
+### Implementation
+#
+# For details see:
+# https://github.sommrey.de/the-bears-den/2024/04/26/ch-266.html#task-1
+
+
+sub uncommon_words {
+    singleton map /[[:alpha:]]+/g, @_;
+}
+
+
+### Examples and tests
+
+sub run_tests {
+    SKIP: {
+        skip "examples" unless $examples;
+
+        is [uncommon_words('Mango is sweet', 'Mango is sour')],
+            ['sweet', 'sour'], 'example 1';
+
+        is [uncommon_words('Mango Mango', 'Orange')],
+            ['Orange'], 'example 2';
+
+        is [uncommon_words('Mango is Mango', 'Orange is Orange')],
+            [], 'example 3';
+    }
+
+    SKIP: {
+        skip "tests" unless $tests;
+
+        is [uncommon_words('Twenty-two two-headed beasts headed east.')],
+            [qw(Twenty beasts east)], 'ignore non-alpha';
+	}
+
+    done_testing;
+    exit;
+}