[whatwg] Space characters: VT and FF

Ian Hickson ian at hixie.ch
Wed Sep 2 16:35:59 PDT 2009

On Sat, 29 Aug 2009, Øistein E. Andersen wrote:
> As far as I can tell, vertical tab ('\v') is not defined as a space 
> character anymore, but does not cause a parse error either (unlike other 
> control characters). Is this intentional?

It seems to cause a parse error... did I miss something?

> In IE7, IE8 and Safari, '\v' is handled as a space character in the 
> sense that it can be used to separate attributes, but this is probably 
> not important, and HTML5 does not seem to prevent browsers from handling 
> '\v' as white space in text content anyway.  I am sure you have a good 
> reason for not defining '\v' as a space character, but would it not be 
> more consistent to treat form feed ('\f') in the same way?  (Firefox 
> handles both as non-space characters, IE and Safari handle both as space 
> characters, and handling these two slightly exotic C0 white-space 
> characters differently seems surprising.)

Form Feeds are much more common, e.g. in RFC text/plain files.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
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