Solution to task 1

1 files changed, 62 insertions, 0 deletions

diff --git a/challenge-253/jo-37/perl/ch-1.pl b/challenge-253/jo-37/perl/ch-1.pl
new file mode 100755
index 0000000000..70212982a6
--- /dev/null
+++ b/challenge-253/jo-37/perl/ch-1.pl
@@ -0,0 +1,62 @@
+#!/usr/bin/perl -s
+
+use v5.24;
+use Test2::V0;
+
+our ($tests, $examples, $sep);
+
+run_tests() if $tests || $examples;	# does not return
+
+die <<EOS unless defined $sep && @ARGV;
+usage: $0 [-examples] [-tests] [-sep=S STR...]
+
+-examples
+    run the examples from the challenge
+ 
+-tests
+    run some tests
+
+-sep=C
+    use C as separator
+
+STR
+    list of strings
+
+EOS
+
+
+### Input and Output
+
+say join ',', map qq("$_"), split_strings($sep, @ARGV);
+
+
+### Implementation
+
+sub split_strings {
+    my $sep = shift;
+	grep length, map +(split /\Q$sep/), @_;
+}
+
+
+### Examples and tests
+
+sub run_tests {
+    SKIP: {
+        skip "examples" unless $examples;
+
+        is [split_strings('.' => "one.two.three","four.five","six")],
+            ["one","two","three","four","five","six"], 'example 1';
+        is [split_strings('$' => '$perl$$', '$$raku')],
+            ["perl","raku"], 'example 2';
+    }
+
+    SKIP: {
+        skip "tests" unless $tests;
+
+        is [split_strings(0 => qw(00aa00b00 00c00dd00))],
+            [qw(aa b c dd)], 'empty fields with zero separator';
+	}
+
+    done_testing;
+    exit;
+}