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edit.lua
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edit.lua
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-- Edit utilities
-- https://github.com/rafi/vim-config
---@class rafi.util.edit
local M = {}
-- Get visually selected lines.
-- Source: https://github.com/ibhagwan/fzf-lua/blob/main/lua/fzf-lua/utils.lua
---@return string
function M.get_visual_selection()
-- this will exit visual mode
-- use 'gv' to reselect the text
local _, csrow, cscol, cerow, cecol
local mode = vim.fn.mode()
local is_visual = vim.tbl_contains({ 'v', 'V', '\22' }, mode)
if is_visual then
-- if we are in visual mode use the live position
_, csrow, cscol, _ = unpack(vim.fn.getpos('.') or { 0, 0, 0, 0 })
_, cerow, cecol, _ = unpack(vim.fn.getpos('v') or { 0, 0, 0, 0 })
if mode == 'V' then
-- visual line doesn't provide columns
cscol, cecol = 0, 999
end
-- exit visual mode
vim.api.nvim_feedkeys(
vim.api.nvim_replace_termcodes('<Esc>', true, false, true),
'n',
true
)
else
-- otherwise, use the last known visual position
_, csrow, cscol, _ = unpack(vim.fn.getpos("'<") or { 0, 0, 0, 0 })
_, cerow, cecol, _ = unpack(vim.fn.getpos("'>") or { 0, 0, 0, 0 })
end
-- swap vars if needed
if cerow < csrow then
csrow, cerow = cerow, csrow
end
if cecol < cscol then
cscol, cecol = cecol, cscol
end
local lines = vim.fn.getline(csrow, cerow)
-- local n = cerow-csrow+1
local n = #lines
if n <= 0 or type(lines) ~= 'table' then
return ''
end
lines[n] = string.sub(lines[n], 1, cecol)
lines[1] = string.sub(lines[1], cscol)
return table.concat(lines, '\n')
end
-- Append modeline at end of file.
function M.append_modeline()
local modeline = string.format(
'vim: set ts=%d sw=%d tw=%d %set :',
vim.bo.tabstop,
vim.bo.shiftwidth,
vim.bo.textwidth,
vim.bo.expandtab and '' or 'no'
)
local cs = require('ts_context_commentstring.internal').calculate_commentstring()
or vim.bo.commentstring
if not cs then
LazyVim.warn('No commentstring found')
return
end
modeline = string.gsub(cs, '%%s', modeline)
vim.api.nvim_buf_set_lines(0, -1, -1, false, { modeline })
end
-- Go to newer/older buffer through jumplist.
---@param direction 1 | -1
function M.jump_buffer(direction)
local jumplist, curjump = unpack(vim.fn.getjumplist() or { 0, 0 })
if #jumplist == 0 then
return
end
local cur_buf = vim.api.nvim_get_current_buf()
local jumpcmd = direction > 0 and '<C-i>' or '<C-o>'
local searchrange = {}
curjump = curjump + 1
if direction > 0 then
searchrange = vim.fn.range(curjump + 1, #jumplist)
else
searchrange = vim.fn.range(curjump - 1, 1, -1)
end
for _, i in ipairs(searchrange) do
local nr = jumplist[i]['bufnr']
if nr ~= cur_buf and vim.fn.bufname(nr):find('^%w+:https://') == nil then
local n = tostring(math.abs(i - curjump))
vim.notify('Executing ' .. jumpcmd .. ' ' .. n .. ' times')
jumpcmd = vim.api.nvim_replace_termcodes(jumpcmd, true, true, true)
vim.cmd.normal({ n .. jumpcmd, bang = true })
break
end
end
end
-- Jump to next/previous whitespace error.
---@param direction 1 | -1
function M.whitespace_jump(direction)
local opts = 'wz'
if direction < 1 then
opts = opts .. 'b'
end
-- Whitespace pattern: Trailing whitespace or mixed tabs/spaces.
local pat = '\\s\\+$\\| \\+\\ze\\t'
vim.fn.search(pat, opts)
end
-- Toggle list window
---@param name "quickfix" | "loclist"
M.toggle_list = function(name)
local win_bufs = M.get_tabpage_win_bufs(0)
for win, buf in pairs(win_bufs) do
if vim.bo[buf].filetype == 'qf' and vim.fn.win_gettype(win) == name then
vim.api.nvim_win_close(win, false)
return
end
end
if name == 'loclist' then
vim.cmd([[ botright lopen ]])
else
vim.cmd([[ botright copen ]])
end
end
-- Return a table with all window buffers from a tabpage.
---@private
---@param tabpage integer
---@return table
M.get_tabpage_win_bufs = function(tabpage)
local bufs = {}
for _, win in pairs(vim.api.nvim_tabpage_list_wins(tabpage)) do
if win ~= nil and vim.api.nvim_win_is_valid(win) then
local buf = vim.api.nvim_win_get_buf(win)
if buf ~= nil and vim.api.nvim_buf_is_valid(buf) then
bufs[win] = buf
end
end
end
return bufs
end
-- Toggle diagnostics locally (false) or globally (true).
---@param global boolean
M.diagnostic_toggle = function(global)
local opts = {}
if not global then
opts.bufnr = vim.api.nvim_get_current_buf()
end
local enabled = vim.diagnostic.is_enabled()
vim.diagnostic.enable(not enabled, opts)
local msg = (enabled and 'Disable' or 'Enable') .. 'd diagnostics'
if global then
msg = msg .. ' globally'
end
LazyVim.info(msg, { title = 'Diagnostics' })
end
return M