[Compatibility Request] formatting to play nice with Table Extended's Extended Native Syntax (MultiMarkdown)

[huyz]

Is your feature request related to a problem? Please describe.

I'm trying to use both this plugin along with another plugin https://github.com/aidenlx/table-extended 's Extended Native Syntax, which is based on MultiMarkdown. Advanced Tables doesn't recognize the extensions to the table markup when reformatting the table, so after reformatting, the specific Table Extended markup is no longer recognized. I was hoping that it could support a few features.

Describe the solution you'd like

These features are already compatible:

• Table Extended's ^^ works just fine already
• Table Extended's left/center/right justification works just fine

But the following don't work:

• In MultiMarkdown for colspan, the || is used to denote that the previous cell is supposed to span multiple columns. "The number of pipes equals the number of columns the cell should span." Could Advanced Tables recognize that and reformat appropriately?
• for multiline, there will be a backslash \ at the end of the line, outside the table. But upon reformatting, Advanced Tables creates a new right-most column with the \s in it. Could Advanced Tables recognizes the lone backslashes \ and not create a column for them?

Describe alternatives you've considered

The alternative is not use some of these Table Extended features.

Additional context

[huyz]

This issue may overlap with #59