Solution to task 1

1 files changed, 76 insertions, 0 deletions

diff --git a/challenge-259/jo-37/perl/ch-1.pl b/challenge-259/jo-37/perl/ch-1.pl
new file mode 100755
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+++ b/challenge-259/jo-37/perl/ch-1.pl
@@ -0,0 +1,76 @@
+#!/usr/bin/perl -s
+
+use v5.24;
+use Test2::V0;
+use File::Temp 'tempfile';
+use Date::Manip::Date;
+use experimental 'signatures';
+
+our ($tests, $examples, $verbose);
+
+run_tests() if $tests || $examples;	# does not return
+
+die <<EOS unless @ARGV >= 2;
+usage: $0 [-examples] [-tests] [START OFFS [HOLIDAY...]]
+
+-examples
+    run the examples from the challenge
+ 
+-tests
+    run some tests
+
+START
+    start date in format YYYY-MM-DD
+
+OFFS
+    business days offset
+
+HOLIDAY...
+    list of bank holidays in format YYYY-MM-DD
+
+EOS
+
+
+### Input and Output
+
+say bdo(@ARGV[0, 1], [@ARGV[2..$#ARGV]]);
+
+
+### Implementation
+
+sub bdo ($start, $offs, $bank=[]) {
+    my ($fh, $fn) = tempfile();
+    print $fh "*HOLIDAYS\n";
+    print $fh "$_ =\n" for @$bank;
+    close $fh;
+
+    my $sd = Date::Manip::Date->new($start);
+    $sd->config(ConfigFile => $fn);
+    
+    $sd->next_business_day($offs);
+    $sd->printf('%Y-%m-%d');
+}
+
+
+### Examples and tests
+
+sub run_tests {
+    SKIP: {
+        skip "examples" unless $examples;
+
+        is bdo('2018-06-28', 3, ['2018-07-03']), '2018-07-04', 'example 1';
+        is bdo('2018-06-28', 3), '2018-07-03', 'example 2';
+    }
+
+    SKIP: {
+        skip "tests" unless $tests;
+
+        is bdo('2018-06-30', 1), '2018-07-03', 'start on weekend';
+        is bdo('2018-06-28', 2,
+            [qw(2018-07-03 2018-06-29 2018-07-01 2018-07-04)]), '2018-07-05',
+            'multiple holidays';
+	}
+
+    done_testing;
+    exit;
+}