edit ch-2.pl and blog

2 files changed, 11 insertions, 7 deletions

diff --git a/challenge-110/cheok-yin-fung/blog.txt b/challenge-110/cheok-yin-fung/blog.txt
new file mode 100644
index 0000000000..f7a4b58e75
--- /dev/null
+++ b/challenge-110/cheok-yin-fung/blog.txt
@@ -0,0 +1 @@
+http://blogs.perl.org/users/c_y_fung/2021/05/cys-take-on-pwc110.html
diff --git a/challenge-110/cheok-yin-fung/perl/ch-2.pl b/challenge-110/cheok-yin-fung/perl/ch-2.pl
index f5b7a432bb..89cbd1e4e8 100644
--- a/challenge-110/cheok-yin-fung/perl/ch-2.pl
+++ b/challenge-110/cheok-yin-fung/perl/ch-2.pl
@@ -17,16 +17,19 @@ for my $field (@{$csv_file}) {
 }
 
 for my $i (0..$old_max_num_col-1) {
-    print $csv_file->[0]->[$i];
+    print_item($csv_file->[0]->[$i]);
     for my $k (1..$old_num_row-1) {
         print ",";
-        my $item = $csv_file->[$k]->[$i];
-        if (defined($item)) {
-            print "\"" if $item  =~ /,/;
-            print $item;
-            print "\"" if $item  =~ /,/;
-        }
+        print_item($csv_file->[$k]->[$i]);
     }
     print "\n";
 }
 
+sub print_item {
+    my $item = $_[0];
+    if (defined($item)) {
+        print "\"" if $item  =~ /,/;
+        print $item;
+        print "\"" if $item  =~ /,/;
+    }
+}