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102 lines
3.2 KiB
Lua
102 lines
3.2 KiB
Lua
-- Not UFO in the sky, but an ultra fold in Neovim.
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-- https://github.com/kevinhwang91/nvim-ufo/
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-- fold_virt_text_handler
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-- This handler is called when the fold text is too long to fit in the window.
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-- It is expected to truncate the text and return a new list of virtual text.
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-- The handler is called with the following arguments:
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-- virtText: The current virtual text list.
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-- lnum: The line number of the first line in the fold.
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-- endLnum: The line number of the last line in the fold.
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-- width: The width of the window.
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--
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--@type function
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--@param virtText
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--@param lnum
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--@param endLnum
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--@param width
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--@param truncate
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--@return table
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local handler = function(virtText, lnum, endLnum, width, truncate)
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local newVirtText = {}
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local suffix = (' %d '):format(endLnum - lnum)
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local sufWidth = vim.fn.strdisplaywidth(suffix)
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local targetWidth = width - sufWidth
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local curWidth = 0
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for _, chunk in ipairs(virtText) do
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local chunkText = chunk[1]
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local chunkWidth = vim.fn.strdisplaywidth(chunkText)
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if targetWidth > curWidth + chunkWidth then
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table.insert(newVirtText, chunk)
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else
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chunkText = truncate(chunkText, targetWidth - curWidth)
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local hlGroup = chunk[2]
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table.insert(newVirtText, { chunkText, hlGroup })
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chunkWidth = vim.fn.strdisplaywidth(chunkText)
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-- str width returned from truncate() may less than 2nd argument, need padding
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if curWidth + chunkWidth < targetWidth then
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suffix = suffix .. (' '):rep(targetWidth - curWidth - chunkWidth)
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end
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break
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end
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curWidth = curWidth + chunkWidth
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end
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table.insert(newVirtText, { suffix, 'MoreMsg' })
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return newVirtText
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end
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return {
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{
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'kevinhwang91/nvim-ufo',
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lazy = false,
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enabled = true,
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version = '*',
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dependencies = {
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'kevinhwang91/promise-async',
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{ 'nvim-treesitter/nvim-treesitter', run = ':TSUpdate' },
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{
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'luukvbaal/statuscol.nvim',
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config = function()
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local builtin = require 'statuscol.builtin'
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require('statuscol').setup {
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relculright = true,
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segments = {
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{ text = { builtin.foldfunc }, click = 'v:lua.ScFa' },
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{ text = { '%s' }, click = 'v:lua.ScSa' },
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{ text = { builtin.lnumfunc, ' ' }, click = 'v:lua.ScLa' },
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},
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}
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end,
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},
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},
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init = function()
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vim.o.fillchars = [[eob: ,fold: ,foldopen:,foldsep: ,foldclose:]]
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vim.o.foldcolumn = '1' -- '0' is not bad
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vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
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vim.o.foldlevelstart = 99
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vim.o.foldenable = true
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end,
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opts = {
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open_fold_hl_timeout = 150,
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close_fold_kinds_for_ft = { 'imports', 'comment' },
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preview = {
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win_config = {
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border = { '', '─', '', '', '', '─', '', '' },
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winhighlight = 'Normal:Folded',
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winblend = 0,
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},
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mappings = {
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scrollU = '<C-u>',
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scrollD = '<C-d>',
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jumpTop = '[',
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jumpBot = ']',
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},
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},
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provider_selector = function(_, _, _) -- bufnr, filetype, buftype
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return { 'treesitter', 'indent' }
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end,
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fold_virt_text_handler = handler,
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},
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},
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}
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