[whatwg] Handling <title> inside <body>

On Mon, 10 Nov 2008 15:31:48 +0100, Tommy Thorsen <tommy at kvaleberg.com>  

> Simon Pieters wrote:
>>> The description of the title element in the spec ("4.2.2 The title  
>>> element") says:
>>>     Contexts in which this element may be used:
>>>         In a head element containing no other title elements.
>>> I don't care very strongly about whether or not title elements are  
>>> allowed anywhere, but I do think the output of the parsing algorithm  
>>> should be valid html according to the rest of the spec.
>> Why?
> Hmm. Good question. If not, then why do we do foster parenting at all?

For Web compat. It's what browsers do. (IE and Opera don't foster parent  
but have magic <caption>-like elements around non-table content which  
makes it render pretty much the same.)

>  From an implementors point of view, it's good to have clearly defined  
> boundaries between modules. An implementation would typically have one  
> module that tokenises and parses html and one module that renders the  
> resulting dom to the screen. If all the unexpected input is dealt with  
> in the parsing module, then you can make some assumptions in the  
> rendering module which can greatly simplify the implementation. Having  
> to deal with an arbitrary amount of illegal input in either module is,  
> IMHO, not the ideal design.

When you support XHTML you'll have to deal with arbitrary trees anyway.  
And, actually, just with DOM and scripting you can end up with arbitrary  

Simon Pieters
Opera Software

Received on Monday, 10 November 2008 06:43:24 UTC