Re: Struggling with ConTeXt

[Aditya Mahajan <adityam@umich.edu>]

On Thu, 2 Aug 2012, Olivier Binda wrote:

> 1) does lxml.att("#1","some tag")  really work ?

I don't know, but please provide a complete minimal example.

> 2) I'm trying to export to xml and have set
>
> \setupbackend[export=yes, xhtml=yes, css=mkiv-export.css]
>
> But
> a) my Metafun/Tikz  pictures aren't exported to svg :/

Currently ConTeXt does not export Metafun/Tikz pictures to svg.

> b) the exported xml has namespaces problems (like error on line 63 at column 
> 20: Namespace prefix m on math is not defined error on line 64 at column 22: 
> Namespace prefix m on mrow is not defined)
>
> What am I doing wrong ? (I'm compiling with "context mydoc.tex")

Could it be a validator error? The 11th line of my test document contains:

<document xmlns:m="http://www.w3.org/1998/Math/MathML"

which defines the 'm' namespace.

> Is there some \csname tex4ht\endcsname command or some other directive that I 
> should use to get my xml export right ?

ConTeXt does not use tex4ht!

> Am I missing some namespace commands (there are lots of m:math and m:mrow 
> mathml tags int the exported xml source, this smells like a tex4ht issue)
>

See above.

> 3) I have defined some framed text with metafun overlays (like in the Context 
> manual)
> and I'm trying to type something like
>
> but it's not really satisfying. (hate to lose vertical space with wandering 
> blank spaces)
>
> Is there a better way ?

Please provide a complete minimal example.

> 4) I'm trying to port the following TeX code to ConTeXt
>
> $$\eqalign{x&=1\cr y&=2\cr}\qquad \hbox{haha}$$
>
> it looks like \startformula\startalign.. doesn't allow me to do that
> I somehow managed to have it by typing
>
> \startformula
> \vcenter{\starttabular[|rM|lM|]
> \NC x \NC =1\NC\NR
> \NC y \NC =2\NC\NR
> \stoptabular}\qquad\text{haha}
> \stopformula
>
> the pdf export is fine, but the xml export is awfull (because of \vcenter I 
> guess)
>
> a) Is there a way to use tables inside math mode alongside other stuff (would 
> be handy) ?
> b) what is the correct way to type the previous text, so the pdf and xml are 
> fine in Context ?

Why not use \startmathalign etc. See:

http://dl.contextgarden.net/myway/mathalign.pdf

Aditya
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