Re: Getting a / when regex should produce nothing

Chris Bennett wrote:
...

 > $article_file = $q->param("articlefilename") || '';

ok, so suppose it is "12345.html.en"
...

> if ($article_file =~ /^([a-zA-Z0-9_-]+\.html.?\w?\w?)$/) {
>     $article_file = $1;
> } else {
>     $article_file = '';
> }

ok, matches, so it's still "12345.html.en"

> $article_backup_file = $article_file;

still "12345.html.en"

> $article_backup_file =~ s/\.html$/_backup.html/;
> 

still "12345.html.en"
(because \.html$ did not match)