add support for tables without borders

[gko]

This seems like a valid table(at least in github):

header 1|header 2
--|--
data 1|data 2

rendered:

header 1	header 2
data 1	data 2

The solution in this pull request is to wrap all lines that don't have | at the beginning or the end.

I also added range call support. It doesn't change the implementation but allows to call TableFormat while having the selection.

[alerque]

I'm happy to see support for table formats added, but I think we're going to need to have this gated behind a feature flag. We can discuss the merits of default on or off, but I know not all Markdown engines support this syntax and it has a high risk of false positive matches.

[gko]

hey @alerque,

I added the flag g:vim_markdown_borderless_table and documented it.

Although I should point out that in this PR I transform the borderless table to a normal one before formatting it, so it gives the same result as before.

As for default value of the flag I'll let you decide. Right now it's disabled by default.

[alerque]

Oooo, now we're talking. Gated behind a default-off flag sounds better too me since the worry is with false positives messing people up when they aren't expecting this. Thanks especially for adding tests and docs!

[alerque]

Would you like me to squash merge this or would you like to go through and split this up a little different? The current commit list isn't going to be very informative to a user updating through their plugin manager. One squashed feat: ... commit would be okay, or you can rebase (or I would use git revise) to spit out a feature commit for the range option and another for all the new tooling, then a doc commit for the help messages and a test one for the tests.

[gko]

Would you like me to squash merge this or would you like to go through and split this up a little different?

I think we can squash it if it's easier.

Thank you for maintaining this plugin ❤️

P.S. tested it on some complicated tables and it worked better than prettier

[alerque]

@gka I'm not really maintaining this, I'm just around the org to facilitate community contributions actually landing. Feel free to jump in!