- From: Matthew Thomas <mpt@myrealbox.com>
- Date: Fri, 7 Jan 2005 23:17:02 +1300
On 7 Jan, 2005, at 5:58 AM, Ian Hickson wrote: > ... > For <sub>, the ideal aural rendering depends on the context, but humans > are adept at interpreting things based on context and you could > probably get away with rendering sub by simply prefixing its contents > with the syllable "sub", as in "H sub-two O" for "H<sub>2</sub>O". > ... > the fact that you can use the element to sensibly change the aural > rendering suggests to be that it is semantic enough to be kept in > HTML. Except that "sub" is merely (an abbreviation of) a description of the typographical presentation! You might just as well say that H<font color="green">2</font>O is semantic because it could be pronounced as "H green-two O". > ... > It's not ideal, and for a better aural rendering you would use a > speech-capable UA that supported ChemML, MathML, or another more > appropriate standard language natively, and pass content to it using > the appropriate domain-specific language. FWIW, in the case of ChemML that wouldn't help -- as far as I know (having just consulted the household science teacher), there is no standard way of pronouncing chemical formulas so as to distinguish subscripts even from normal numbers. So using aural rendering to decide whether an element is semantic wouldn't work in that case. -- Matthew Thomas http://mpt.net.nz/
Received on Friday, 7 January 2005 02:17:02 UTC