Comparing BBCode-Modules

Module/Version	HTML::BBCode 2.06	BBCode::Parser 0.34	Parse::BBCode 0.12	HTML::BBReverse 0.07	AUBBC 4.06
Unbalanced / incorrectly nested tags	Leaves tags unparsed	Closes open tags or dies depending on tags	Leaves tags unparsed or closes tags if wanted	Creates invalid HTML	Leaves tags unparsed / Creates invalid HTML
Add own tags	No	Yes	Yes	No	Some (2)
Unknown Tags	leaves unparsed	leaves unparsed	leaves unparsed	leaves unparsed	leaves unparsed
Forbidden Tags	leaves unparsed	Dies	leaves unparsed	leaves unparsed	leaves unparsed
Provides parsed tree	No	Yes	Yes	No	No
Block in Inline	Creates broken output (1)	Dies	leaves unparsed	Creates invalid HTML depending on block tags	Creates invalid HTML

(1) The output from '[i] italic [code]code block[/code] [/i]':

<span style="font-style:italic"> italic  </span><div class="bbcode_code_header">Code:</div><div class="bbcode_code_body">code&nbsp;block</div>  &lt;/span&gt;

(2) Not possible to build tags with unparsed content; must use the builtin [code] tag