Remove all whitespace between html tags

[SlowMove]

Aside from producing markup that's difficult to read, could there be any unexpected problems parsing html documents to exclude all spaces between ">" and "<"?

I haven't run the following code, but I think it would do it in Perl.
$html_text =~ s/(>)\s+(<)/$1$2/g;

[SlowMove]

What I'd really like to know is if there are cases where it would somehow make sense to have space between ">" and "<" characters

[fourstardragon]

"What I'd really like to know is if there are cases where it would somehow make sense to have space between ">" and "<" characters"
Not that I can think of offhand. It might affect JavaScript, but you can (and should) include that from a separate file.

[encyclo]

I can't think of any particular problems, other than those if you have anything between

<pre></pre>

tags (which retains the formatting including the souse-code white space).

If you know the content of the pages and you're sure you haven't used

<pre></pre>

anywhere, I'd say go ahead - but keep a backup of the old stuff!