Sandbox for trialing markup

robbie.morrison · February 11, 2019, 11:43am

This topic is for trialing markdown markup.

Normally I would use the discourse sandbox, reset each day, for this purpose. But the rendering on this instance of discourse differs from that on the sandbox site. In particular, I am trying to get the GFM table extension working.

Other are free to experiment here too. Remember that deleted postings are not actually removed from the database. Rather their content is blanked and they are shown collapsed.

robbie.morrison · September 30, 2017, 7:49pm

Heading one	Heading two
content	content
content	content

Here is how this exact same markup renders on http://try.discourse.org:

tom_brown · October 1, 2017, 7:17am

Heading one	Heading two
content	content
content	content

Seems it’s fixed now with the new discourse version!

robbie.morrison · December 8, 2017, 6:26am

trialling the escaping of asterisks for multiplication: *

robbie.morrison · January 14, 2018, 8:35pm

trialing maths markup

maths markup: \eta_\text{th,2}

which does not render on this site

here is a screenshot of that same markup rendering properly on try.discourse.org:

screenshot

Update / 26 December 2017

A discourse MathJax plugin is required:

the old plugin was upgraded in July 2017
the new plugin is described here

But that is odd, this site already has the following plugin:

MathJax support for Discourse / version = 0.4.1 / enabled = Y

Lets try something very simple: $x_i$ or x_i. Nope. That is broken.

Update / 05 January 2018

Just fixed the MathJax URL: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js

x Nope!

Update / 14 January 2018

Upgrade of Discourse to 2.0.0

x Not this time either!

tom_brown · January 14, 2018, 8:35pm

Let’s try some latex: $x$ and see if it works.

tom_brown · January 14, 2018, 9:14pm

And again x_y is my favourite subscript; E=mc^2 is my favourite equation, but not so much as

e^{i\pi} + 1 = 0

Euler, you’re the best!

tom_brown · January 24, 2018, 8:21am

Test LaTeX again: \int_{-\infty}^0 e^xdx = 1.

\sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6}

tom_brown · May 3, 2018, 7:16am

Tom test whether the forum is read-only.

tom_brown · May 3, 2018, 7:22am

Is it still working? Tom tests again. Perhaps in vain to get 20 characters?

robbie.morrison · May 3, 2018, 7:23am

External party test to see if the HTTP 403 error persists or not.

robbie.morrison · May 10, 2018, 6:58am

Footnote trial

Some flavors of markdown support footnotes, such as pandoc. Lets see if these work here. The markup is as follows:

^[Inline footnote.]
^[a] then ^[a]: Separated footnote.

Text text.^[Inline footnote.] Text text.^[a]

^[a]: Separated footnote.

Okay, markdown footnotes are not supported here. But they can be faked using an HTML <sup> construction.

Text text.¹

1. HTML footnote.

But note that the footnote itself (check the source) is preceded by  to prevent a numbered list from being rendered instead.