The condition/given for this code is that all input to it has already been validated/cleaned via an HTML::TokeParser filter. So the only tags it will see are those that are correct, correctly nested, and don't contain tricky stuff like '"\>".'

Given that, is this a sound approach to removing empty tags? Better ideas? I know it could be done within the TokeParser routines but those are already a bit complex with two big named loops and I'd rather do it the easy way, if it's reasonable, than add in more logic or resort to unget_token() back and forth.

1 while $body =~ s,<(\w+)[^>]*>\s*</\1\s*>,,g;

In reply to Empty tags cleaner regex (for pre-validated XHTML) by Your Mother

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