question on table syntax

[ynikitenko]

Hello, thanks for your tool! In argdown README (I could not run or fix that program) there is a table like

|Short|Long    |Default                |Description
|-----|--------|-----------------------|----------------------------------------
|`-h` |`--help`|                       |show this help message and exit
|     |`--sum` |<built-in function max>|sum the integers (default: find the max)

In your example, it is

|short|long|default|help|
| :---: | :---: | :---: | :---: |
|`-h`|`--help`||show this help message and exit|
|`-f`|`--files`|`None`|Files to read.|

However, in Markdown specifications (like this one https://linux.die.net/man/5/pandoc_markdown) I could only find that '+' should be used on the intersection of rows and columns (however, your | works too). Could you please explain where you got that syntax and what it means?

[devanshkv]

I took it from https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/organizing-information-with-tables.

[ynikitenko]

Thank you! This really looks like "github Markdown". Anyway '+' don't work with my pandoc Markdown (I have to use your syntax).
And now I understand that :---: means Center-aligned (surprisingly, this also works with pandoc and is displayed in man correctly). Many thanks.