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feat(treesitter): table of contents for checkhealth, markdown (#32282)

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Problem: It's difficult to navigate large structured text files (vim
help, checkhealth, Markdown).

Solution: Support `gO` for table of contents and `]]`/`[[` for moving
between headings for all these filetypes using treesitter queries.

Refactor: colorization of highlight groups is moved to the `help` ftplugin
while headings-related functionality is implemented in a private
`vim.treesitter` module for possible future use for other filetypes.
This commit is contained in:
Christian Clason
2025-02-22 13:07:21 +01:00
committed by GitHub
parent 5cead869fb
commit 2e5b560482
7 changed files with 221 additions and 79 deletions
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14
runtime/ftplugin/markdown.lua Normal file
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vim.keymap.set('n', 'gO', function()
require('vim.treesitter._headings').show_toc()
end, { buffer = 0, silent = true, desc = 'Show table of contents for current buffer' })
vim.keymap.set('n', ']]', function()
require('vim.treesitter._headings').jump({ count = 1 })
end, { buffer = 0, silent = false, desc = 'Jump to next section' })
vim.keymap.set('n', '[[', function()
require('vim.treesitter._headings').jump({ count = -1 })
end, { buffer = 0, silent = false, desc = 'Jump to previous section' })
vim.b.undo_ftplugin = (vim.b.undo_ftplugin or '')
.. '\n exe "nunmap <buffer> gO"'
.. '\n exe "nunmap <buffer> ]]" | exe "nunmap <buffer> [["'