proposal: x/tools/present: add support for math equations

[sbinet]

it would be great to have some support for mathematic equations in talks and present.

an obvious candidate would be MathJAx:

• https://www.mathjax.org/#gettingstarted

[ALTree]

This was asked in the past: #17978

Does the solution suggested here: #17978 (comment) work for you?

[robpike]

Please let's keep present's input language very simple.

[sbinet]

@ALTree I tried the solution provided in #17978

here is my repo:
https://github.com/sbinet/talks/tree/master/2018/2018-03-28-matheq

but when I try to visit it via talks.godoc.org:
https://talks.godoc.org/github.com/sbinet/talks/2018/2018-03-28-matheq/talk.slide

I get:

$> curl https://talks.godoc.org/github.com/sbinet/talks/2018/2018-03-28-matheq/talk.slide
Internal server error.

Locally, it works, though.
(but in my field, CERN, High Energy Physics, we do like to be able to upload presentations to a central server or at least a link to another repository serving the presentation. for science! :P)

maybe some protection against HTML injection in talks.godoc.org ?

[dmitshur]

“Internal server error.” sounds like a talks.godoc.org bug of some sort.

[myitcv]

@sbinet as an interim/alternative, you could use my (very alpha) GopherJS version of present:

http://blog.myitcv.io/gopherjs_examples_sites/present/?url=https://raw.githubusercontent.com/sbinet/talks/master/2018/2018-03-28-matheq/talk.slide&hideAddressBar=true

Very happy to continue a discussion about that offline from here (Slack etc)

[bradfitz]

I still don't think we're going to do this. I don't see anything that's changed since the prior decision to keep present simple.

You're welcome to maintain a fork of a more featureful version of present, but it's not something we have much time to maintain.

[sbinet]

I am ok with present not having a special syntax baked in.
but could the talks.godoc.org issue be solved so mathjax could be used?