textwidth as a heading width

[moovinzoo]

How do you think of new heading width option to be textwidth?
Currently we could choose among full, block.

[MeanderingProgrammer]

What would the behavior of textwidth be? I believe the current behavior of block means the same thing as what you mean by textwidth:

require('render-markdown').setup({
    heading = { width = 'block' },
})

If that's not the case LMK what you were thinking and how it's different.

[moovinzoo]

First of all, textwidth is different from the number of actual text in certain line.
When you set colorcolumn=+1, colorcolumn would be placed in the (textwidth+1)th column.
Or else we could also indirectly set textwidth by set colorcolumn=78 under the hood.
For example, almost every help pages in vim/nvim usually use 78 as a textwidth.

So the feature request of mine is not exist for now, indeed.

[moovinzoo]

						*'textwidth'* *'tw'*
'textwidth' 'tw'	number	(default 0)
			local to buffer
	Maximum width of text that is being inserted.  A longer line will be
	broken after white space to get this width.  A zero value disables
	this.
	When 'textwidth' is zero, 'wrapmargin' may be used.  See also
	'formatoptions' and |ins-textwidth|.
	When 'formatexpr' is set it will be used to break the line.

[MeanderingProgrammer]

You can combine the block width with a value for min_width:

require('render-markdown').setup({
    heading = {
        width = 'block',
        min_width = 78,
    },
})

If you want it to be based on your setting for textwidth then:

require('render-markdown').setup({
    heading = {
        width = 'block',
        min_width = vim.api.nvim_get_option_value('textwidth', {}),
    },
})