Perl Weekly Challenge – 2019-03-25

I’m not sure that I’ll have time to do these every week, but here are my answers to this week’s two Perl Weekly Challenges. Challenge #1 Write a script to replace the character ‘e’ with ‘E’ in the string ‘Perl Weekly Challenge’. Also print the number of times the character ‘e’ found in the string.

Nothing really complicated here. We can […]

A Subtle Bug

Buggy Code

Earlier this week, I saw this code being recommended on Stack Overflow. The code contains a nasty, but rather subtle bug. The version I saw has been fixed now, but I thought there were some interesting lessons to learn by looking at the problems in some detail. Let’s start by working out what the bug […]

Please Don’t Use CGI.pm

CGI.pm in the Bin

Earlier this week, the Perl magazine site, perl.com, published an article about writing web applications using CGI.pm. That seemed like a bizarre choice to me, but I’ve decided to use it as an excuse to write an article explaining why I think that’s a really bad idea. It’s important to start by getting some definitions […]

Line of Succession

I’m a republican. No… wait… come back! That’s not what I mean. I’m a long way from being a supporter of the Republican Party. I mean “republican” in its older meaning of “someone who thinks their country should be a republic. That is to say, I’m not a big fan of the British royal family. […]