Tidying nested / simple MultiMarkdown tables

[ComplexPoint]

PS I notice that the current Discourse engine does now support MMD table markup, albeit with fairly low-key default CSS:

MMD:

| Col A | Col B |  Col C  |
|:-----:|:-----:|:-------:|
|  A1   |  B1   |   C1    |
|  A2   |       | :smile: |

Rendered as HTML:

Col A	Col B	Col C
A1	B1	C1
A2

Add a table to your post using markdown

For other styles, short of using Admin rights to customise the default CSS, I thought it might be possible by using a variant of this macro:

Copy MultiMarkdown table as HTML code

A first sketch. Scope: Intended to work with: Rectangular MMD tables (in which each cell has just one cell below it or above it) Nested MMD tables (in which a parent cell may span multiple child cells in the next row(s)) (Not that it is not intended for use with tables in which one child cell spans multiple parent cells in the row above. It will ignore the aspiration of any child cell to have two mothers) Limitation: this basic draft applies no style to the table. Status: experimental…

to generate an HTML version of the MMD table with custom embedded style elements, but it turns out that the Discourse software overrides any styling directly embedded in table elements.