Anti-conceal virtual text with cursor

[MeanderingProgrammer]

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Currently the conceal feature is applied to the buffer as a whole. Meaning anything concealed by Neovim / Tree Sitter is able to be hidden in normal mode but shown when the user's cursor enters that line. For example with links the states are:

• Insert Mode = Show Concealed Text = [link](https://example.com)
• Normal Mode with cursor not on line = Hide Concealed Text = link
• Normal Mode with cursor on line = Show Concealed Text = [link](https://example.com)

Ideally we could do something similar with the virtual text added by this plugin, for example headings would have the following states:

• Insert Mode = No Virtual Text = ### Heading 3
• Normal Mode with cursor not on line = Show Virtual Text = <symbol> Heading 3
• Normal Mode with cursor on line = Hide Virtual Text = ### Heading 3

The tricky part here is we essentially want the opposite behavior of a conceal.

• Conceal = hide text until cursor enters, then show it
• We need = show text until cursor enters, then hide it

As far as I am aware there is not a builtin feature to support this kind of behavior.

Any solution that involves running an auto command on every cursor movement is IMO not viable.

If a feature gets released that adds support for this or if I am missing something that already exists please let me know!

Pulled from original issue: https://github.com/MeanderingProgrammer/markdown.nvim/issues/14

[MeanderingProgrammer]

Some discussions that may or may not be relevant: https://github.com/neovim/neovim/pull/9496

[MeanderingProgrammer]

This should hopefully work now after merging: https://github.com/MeanderingProgrammer/markdown.nvim/commit/726c85cb9cc6d7d9c85af6ab093e1ee53b5e3c82.

Will keep this open to track any resulting problems.

[MeanderingProgrammer]

A week is probably long enough to catch any glaring issues, no need to keep this around, happy it seems to be working as expected :)