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|
-- use treesitter over syntax (for highlighted code blocks)
vim.treesitter.start()
--- Apply current colorscheme to lists of default highlight groups
---
--- Note: {patterns} is assumed to be sorted by occurrence in the file.
--- @param patterns {start:string,stop:string,match:string}[]
local function colorize_hl_groups(patterns)
local ns = vim.api.nvim_create_namespace('nvim.vimhelp')
vim.api.nvim_buf_clear_namespace(0, ns, 0, -1)
local save_cursor = vim.fn.getcurpos()
for _, pat in pairs(patterns) do
local start_lnum = vim.fn.search(pat.start, 'c')
local end_lnum = vim.fn.search(pat.stop)
if start_lnum == 0 or end_lnum == 0 then
break
end
for lnum = start_lnum, end_lnum do
local word = vim.api.nvim_buf_get_lines(0, lnum - 1, lnum, true)[1]:match(pat.match)
if vim.fn.hlexists(word) ~= 0 then
vim.api.nvim_buf_set_extmark(0, ns, lnum - 1, 0, { end_col = #word, hl_group = word })
end
end
end
vim.fn.setpos('.', save_cursor)
end
-- Add custom highlights for list in `:h highlight-groups`.
local bufname = vim.fs.normalize(vim.api.nvim_buf_get_name(0))
if vim.endswith(bufname, '/doc/syntax.txt') then
colorize_hl_groups({
{ start = [[\*group-name\*]], stop = '^======', match = '^(%w+)\t' },
{ start = [[\*highlight-groups\*]], stop = '^======', match = '^(%w+)\t' },
})
elseif vim.endswith(bufname, '/doc/treesitter.txt') then
colorize_hl_groups({
{
start = [[\*treesitter-highlight-groups\*]],
stop = [[\*treesitter-highlight-spell\*]],
match = '^@[%w%p]+',
},
})
elseif vim.endswith(bufname, '/doc/diagnostic.txt') then
colorize_hl_groups({
{ start = [[\*diagnostic-highlights\*]], stop = '^======', match = '^(%w+)' },
})
elseif vim.endswith(bufname, '/doc/lsp.txt') then
colorize_hl_groups({
{ start = [[\*lsp-highlight\*]], stop = '^------', match = '^(%w+)' },
{ start = [[\*lsp-semantic-highlight\*]], stop = '^======', match = '^@[%w%p]+' },
})
end
vim.keymap.set('n', 'gO', function()
require('vim.treesitter._headings').show_toc()
end, { buffer = 0, silent = true, desc = 'Show an Outline of the 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' })
local parser = assert(vim.treesitter.get_parser(0, 'vimdoc', { error = false }))
local root = parser:parse()[1]:root()
-- Add "runnables" for Lua/Vimscript code examples.
do
---@type table<integer, { lang: string, code: string }>
local code_blocks = {}
local query = vim.treesitter.query.parse(
'vimdoc',
[[
(codeblock
(language) @_lang
.
(code) @code
(#any-of? @_lang "lua" "vim")
(#set! @code lang @_lang))
]]
)
for _, match, metadata in query:iter_matches(root, 0, 0, -1) do
for id, nodes in pairs(match) do
local name = query.captures[id]
local node = nodes[1]
local start, _, end_ = node:parent():range()
if name == 'code' then
local code = vim.treesitter.get_node_text(node, 0)
local lang_node = match[metadata[id].lang][1] --[[@as TSNode]]
local lang = vim.treesitter.get_node_text(lang_node, 0)
for i = start + 1, end_ do
code_blocks[i] = { lang = lang, code = code }
end
end
end
end
vim.keymap.set('n', 'g==', function()
local pos = vim.api.nvim_win_get_cursor(0)[1]
local code_block = code_blocks[pos]
if not code_block then
vim.print('No code block found')
elseif code_block.lang == 'lua' then
vim.cmd.lua(code_block.code)
elseif code_block.lang == 'vim' then
vim.cmd(code_block.code)
end
end, { buffer = true })
end
do
local ns = vim.api.nvim_create_namespace('nvim.help.urls')
local base = 'https://neovim.io/doc/user/helptag.html?tag='
local query = vim.treesitter.query.parse(
'vimdoc',
[[
((optionlink) @helplink)
(taglink
text: (_) @helplink)
(tag
text: (_) @helplink)
]]
)
for _, match, _ in query:iter_matches(root, 0, 0, -1) do
for id, nodes in pairs(match) do
if query.captures[id] == 'helplink' then
for _, node in ipairs(nodes) do
local start_line, start_col, end_line, end_col = node:range()
local tag = vim.treesitter.get_node_text(node, 0)
vim.api.nvim_buf_set_extmark(0, ns, start_line, start_col, {
end_line = end_line,
end_col = end_col,
url = base .. vim.uri_encode(tag),
})
end
end
end
end
end
vim.b.undo_ftplugin = (vim.b.undo_ftplugin or '')
.. '\n sil! exe "nunmap <buffer> gO" | sil! exe "nunmap <buffer> g=="'
.. '\n sil! exe "nunmap <buffer> ]]" | sil! exe "nunmap <buffer> [["'
vim.b.undo_ftplugin = vim.b.undo_ftplugin .. ' | call v:lua.vim.treesitter.stop()'
|
