Week 347 - Frequent funny formats

3 files changed, 75 insertions, 0 deletions

diff --git a/challenge-347/peter-campbell-smith/blog.txt b/challenge-347/peter-campbell-smith/blog.txt
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+http://ccgi.campbellsmiths.force9.co.uk/challenge/347
diff --git a/challenge-347/peter-campbell-smith/perl/ch-1.pl b/challenge-347/peter-campbell-smith/perl/ch-1.pl
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+#!/usr/bin/perl
+
+# Blog: http://ccgi.campbellsmiths.force9.co.uk/challenge
+
+use v5.26;    # The Weekly Challenge - 2025-11-10
+use utf8;     # Week 347 - task 1 - Format date
+use warnings; # Peter Campbell Smith
+binmode STDOUT, ':utf8';
+use Encode;
+
+format_date('15th Jan 2025');
+format_date('22nd Feb 2025');
+format_date('1st Jan 1900');
+format_date('31st Dec 2100');
+format_date('10th Nov 2025');
+
+sub format_date {
+	
+	my ($string, $output, %mo, $d, $m, $y, $i);
+	
+	# initialise
+	$string = shift;
+	%mo = (Jan => 1, Feb => 2, Mar => 3, Apr => 4, May => 5, Jun => 6,
+		Jul => 7, Aug => 8, Sep => 9, Oct => 10, Nov => 11, Dec => 12);
+		
+	# do it
+	if (($d, $m, $y) = $string =~ m|(\d{1,2}).+?([a-z]{3}).+?(\d{4})|i) {
+		$output = sprintf('%04d-%02d-%02d', $y, $mo{$m}, $d);
+	} else {
+		$output = 'illegal format';
+	}	
+	
+	say qq[\nInput:  '$string'];
+	say qq[Output: $output];
+}
diff --git a/challenge-347/peter-campbell-smith/perl/ch-2.pl b/challenge-347/peter-campbell-smith/perl/ch-2.pl
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+#!/usr/bin/perl
+
+# Blog: http://ccgi.campbellsmiths.force9.co.uk/challenge
+
+use v5.26;    # The Weekly Challenge - 2025-11-10
+use utf8;     # Week 347 - task 2 - Format phone number
+use warnings; # Peter Campbell Smith
+binmode STDOUT, ':utf8';
+use Encode;
+
+format_phone_number('1-23-45-6');
+format_phone_number('1234');
+format_phone_number('12 345-6789');
+format_phone_number('123 4567');
+format_phone_number('123 456-78');
+format_phone_number('02072221212');
+
+sub format_phone_number {
+	
+	my ($phone, $output, $length);
+	
+	# initialise
+	$phone = shift;
+	say qq[\nInput:  '$phone'];
+	$phone =~ s|[^[0-9]||g;
+	
+	# groups of 3
+	while (length($phone) > 4) {
+		$output .= substr($phone, 0, 3) . '-';
+		$phone = substr($phone, 3);
+	}
+	
+	# and the rest
+	$output .= length($phone) == 4 
+		? substr($phone, 0, 2) . '-' . substr($phone, 2, 2) 
+		: $phone;
+	
+	say qq[Output: '$output'];
+}