- From: T. V. Raman <raman@Adobe.COM>
- Date: Wed, 20 Jan 1999 13:56:13 -0800 (PST)
- To: Jason White <jasonw@ariel.ucs.unimelb.EDU.AU>
- Cc: WAI Markup Guidelines <w3c-wai-gl@w3.org>
Make sure that the guidelines are written such that "ascii representation" of math does not get interpreted as ASCII art --that would be useless both now and in the future. >>>>> "Jason" == Jason White <jasonw@ariel.ucs.unimelb.EDU.AU> writes: Jason> I have not reviewed the guidelines to establish Jason> where these checkpoints would best fit, but the Jason> following suggestions come to mind in respect of Jason> mathematical content: Jason> 1. When browsers provide support for viewing and Jason> processing it, use MathML to represent Jason> mathematical expressions occurring in a document. Jason> 2. Until MathML is supported by browsers, images Jason> may be used to represent mathematical content, so Jason> long as alternative text providing an ASCII Jason> representation of the mathematics is supplied. Jason> In the Techniques document, an example could be Jason> given of the latter method, adopting the ASCII Jason> representation used in Donald E. Knuth's TeX Jason> typesetting system. Rationale: an ASCII version Jason> can be read by today's assistive Jason> technologies. Query whether there are characters Jason> in Unicode that could be used in ALT text to Jason> represent the mathematical symbols and whether Jason> these would provide a better interim solution (I Jason> suspect that they would not be supported by Jason> current assistive technologies and that we will Jason> need to fall back upon straightforward ASCII as Jason> mentioned above). Jason> The two proposed checkpoints are modeled on the Jason> provisions related to style sheets and the legacy Jason> problem associated with the use of tables for Jason> layout purposes. -- Best Regards, --raman Adobe Systems Tel: 1 408 536 3945 (W14-128) Advanced Technology Group Fax: 1 408 537 4042 W14-128 345 Park Avenue Email: raman@adobe.com San Jose , CA 95110 -2704 Email: raman@cs.cornell.edu http://labrador.corp.adobe.com/~raman/ (Adobe Intranet) http://cs.cornell.edu/home/raman/raman.html (Cornell) ---------------------------------------------------------------------- Disclaimer: The opinions expressed are my own and in no way should be taken as representative of my employer, Adobe Systems Inc. ____________________________________________________________
Received on Wednesday, 20 January 1999 16:56:26 UTC