Regex teaser

[James Laver]

On 3 Dec 2013, at 23:54, Paul Makepeace <paulm at paulm.com> wrote:

> What does this output?
> 
> $ perl -le '($a = "aabbb") =~ s/b*$/c/g; print $a’

You can tell you’ve been writing perl too long when you know what that’s going to do and why :(

Here’s your example modified to exhibit my favourite regex madness. Can you explain this one?

perl -le '($a = "aabbb") =~ s/.*?/./g; print $a’

James