-require'nvim-treesitter.configs'.setup {
- -- 安装 language parser
- -- :TSInstallInfo 命令查看支持的语言
- ensure_installed = {"cpp", "vim", "lua"},
- -- 启用代码高亮功能
- highlight = {
- enable = true,
- additional_vim_regex_highlighting = false
- },
- -- 启用增量选择
- incremental_selection = {
- enable = true,
- keymaps = {
- init_selection = '<CR>',
- node_incremental = '<CR>',
- node_decremental = '<BS>',
- scope_incremental = '<TAB>',
- }
- },
- -- 启用基于Treesitter的代码格式化(=) . NOTE: This is an experimental feature.
- indent = {
- enable = false
- }
+local treesitter = require('nvim-treesitter')
+
+treesitter.setup {
+ install_dir = vim.fn.stdpath('data') .. '/site',
}
--- 开启 Folding
---vim.wo.foldmethod = 'expr'
---vim.wo.foldexpr = 'nvim_treesitter#foldexpr()'
--- 默认不要折叠
--- https://stackoverflow.com/questions/8316139/how-to-set-the-default-to-unfolded-when-you-open-a-file
---vim.wo.foldlevel = 99
+
+treesitter.install {
+ 'bash',
+ 'c',
+ 'cmake',
+ 'cpp',
+ 'json',
+ 'lua',
+ 'markdown',
+ 'markdown_inline',
+ 'python',
+ 'query',
+ 'toml',
+ 'vim',
+ 'vimdoc',
+ 'yaml',
+}
+
+local function foldlevel(lnum, exclude_start)
+ if lnum < 1 or lnum > vim.api.nvim_buf_line_count(0) then
+ return 0
+ end
+ local value = vim.treesitter.foldexpr(lnum)
+ local level = tonumber(value:match('%d+')) or 0
+ -- A '>N' starts a new fold even when adjacent folds have the same level.
+ return math.max(0, level - (exclude_start and value:sub(1, 1) == '>' and 1 or 0))
+end
+
+function _G.DotfilesFoldExpr()
+ local line = vim.v.lnum
+ -- Keep only levels spanning the previous, current, and next lines.
+ -- Default foldminlines keeps interiors of fewer than two lines visible.
+ return math.min(foldlevel(line - 1), foldlevel(line, true), foldlevel(line + 1, true))
+end
+
+local function enable(buf)
+ vim.wo[0][0].foldexpr = '0'
+ if not pcall(vim.treesitter.start, buf) then
+ return
+ end
+
+ vim.wo[0][0].foldexpr = 'v:lua.DotfilesFoldExpr()'
+ vim.wo[0][0].foldmethod = 'expr'
+end
+
+vim.api.nvim_create_autocmd('FileType', {
+ callback = function(args) enable(args.buf) end,
+})
+
+-- Startup filetype detection can precede this config being sourced.
+if vim.bo.filetype ~= '' then
+ enable(0)
+end