--- Tomasz Wegrzanowski taw@users.sourceforge.net wrote:
But you can see a diference between "possible to do in HTML" and "sane to do in HTML" now.
Yes. But do we agree that formulas that are "sane to do in HTML", like x<sup>2</sup> + y<sup>2</sup> ≥ 0 for instance, should be written in HTML even when the TeX system is in place?
I'm not completely sure about safety. Probably we should both validate and run TeX in safe mode.
For safety concerns, preparsing of TeX is not necessary: the safety issues of running PHP and calling an external parser are much larger.
texvc is extremely easy to extend. It shouldn't take too much time just to add a few dozens of new tags, and a night or two should be enough for completely new kind of markup, be it chemistry (which certainly should be added), chess, music or whatever.
Unfortunately, the xypic package (which I consider the one feature that is really needed in the math area right now) as well as the other packages I listed all use their own idiosyncratic syntax quite unlike ordinary TeX. So extending texvc may not be quite as simple, and I'm afraid we are creating a development bottleneck by requiring the external parsing stage.
Axel
Payment: http://www.wikipedia.org/w/wiki.phtml?title=Tree_(graph_theory)&diff=0&a...
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