Re: [rfc-i] [Tools-discuss] What do do about SVG

Hi,

After some investigation, I've understood that this particular problem 
is because svgcheck doesn't allow <style> as a child of <svg>. Nor, after
some experiments, as a child of <path>, even though the RelaxNG in
RFC7996 appears to allow it. (Also, when <style> defines a color, and
I patch svgcheck/word_properties.py to allow <style>, svgcheck doesn't
seem to detect the color elements inside <style>.)

In the course of this I found another instance of a particular
bug in svgcheck (failure to increment errorCount).

So we have the facts that
(a) svgcheck is buggy;
(b) it doesn't implement the RelaxNG in RFC7996;
(c) sadly, we lost the maintainer of the code;
(d) our subset of TinySVG is very hard to generate with most drawing tools;
(e) experience shows that special SVG mangling programs are needed to prepare files for inclusion in RFCs;
(f) we've been told that TinySVG is no longer alive at W3C;
(g) browsers appear to be fully competent at interpreting full SVG.

How can we make progress on resolving this?

Regards
   Brian Carpenter
On 11-May-21 09:21, Brian E Carpenter wrote:
> And this is only the latest issue. I believe from my own experiments
> (which included patching the code of svgcheck, writing a supplementary
> SVG massager, and manual SVG editing) that what we have simply isn't fit
> for purpose. And I'm not happy about waiting for the politics of the
> RFC Series Editor to be settled before we discuss what to do about
> this.
> 
> [If somebody could send me the original SVG, I'd be interested to run
> it through my patched tools.]
> 
> Regards
>    Brian Carpenter
> 
> On 11-May-21 04:44, Carsten Bormann wrote:
>> Since this little gem didn’t seem to make it to rfc-interest, here’s a copy…
>> (No action needed, I solved the problem in a different way in kramdown-rfc 1.4.11.)
>> [I had to scale down the crisp original images for this list…]
>>
>> Grüße, Carsten
>>
>>
>> On 2021-01-06, at 05:21, Martin J. Dürst <duerst@it.aoyama.ac.jp <mailto:duerst@it.aoyama.ac.jp>> wrote:
>>>
>>> clean SVG
>>
>> Before svgcheck:
>>
>>
>> After svgcheck:
>>
>>
>> Much cleaner.  SCNR.
>>
>> Grüße, Carsten
>>
>>
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> 

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