Contributed by russmann
on Sep 06, 2001 at 04:03 UTC
Q&A
> regular expressions
Answer: how-to strip empty HTML tags like b /b
contributed by tachyon A more complete option is not Perl. Use HTML Tidy
which is by w3c's Dave Raggett. I just tested it and
it will strip empty tags a well as a doing many other
useful things. Get your free copy here
http://www.w3.org/People/Raggett/tidy/ or get
a Win32 GUI version here http://perso.wanadoo.fr/ablavier/TidyGUI/ | Answer: how-to strip empty HTML tags like b /b
contributed by tachyon The normal answer would be use HTML::TokeParser if you want
a reliable solution to parse HTML. For this *particular* task a
well constructed regex should suffice. This will strip all the <b>
</b> tags that are empty. I believe it covers all bases.
$text = join '', <DATA>;
print $text;
$text =~ s#<\s*b\s*>(?:[\s\n]| )*<\s*/\s*b\s*>##ig;
print $text;
__DATA__
<p>test
<p>test<b></b>
<p>test<b
>
</b>
<p>test<b> </b>
<p>test<b
></b >
<p>test<B></B>
<p>test<B>
</B>
<p>test<B ></B>
<p>test<B
> </B >
<p>test<B> </B>
<p><b>I am not empty!</b>
| Answer: how-to strip empty HTML tags like b /b
contributed by Hofmator I'd also go with tachyon's suggestion of HTML Tidy, but if you are trying to do this quick and dirty somewhere in the middle of a script, I'd use this regex
$text =~ s#<\s*([^>]*)\s*>[\s\n]*<\s*/\s*\1\s*>##ig;
It should remove any empty tags which don't contain any attributes (not just bold tags), so it works on
__DATA__
<i> </ I>
< B ></b>
< em> < / eM >
|
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