127 lines
2.8 KiB
Lua
127 lines
2.8 KiB
Lua
local M = {}
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---maps the table|string of keys to the action
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---@param keys table
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---@param action function|string
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function M.nmap(bufnr, keys, action)
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for _, lhs in ipairs(keys) do
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vim.keymap.set('n', lhs, action, { silent = true, noremap = true, buffer = bufnr })
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end
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end
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--- @param f function
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--- @param delay number
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--- @return function
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function M.debounce(f, delay)
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local timer = vim.loop.new_timer()
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return function(...)
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local args = { ... }
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timer:start(
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delay,
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0,
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vim.schedule_wrap(function()
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timer:stop()
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f(unpack(args))
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end)
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)
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end
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end
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function M.flash_highlight(winnr, lnum, durationMs, hl_group)
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if durationMs == false then
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return
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end
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hl_group = hl_group or 'Visual'
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if durationMs == true or durationMs == 1 then
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durationMs = 400
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end
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local bufnr = vim.api.nvim_win_get_buf(winnr)
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local ns
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if _G._outline_nvim_has[11] then
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ns = vim.api.nvim_create_namespace('_outline_nvim_flash')
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vim.hl.range(bufnr, ns, hl_group, { lnum - 1, 0 }, { lnum - 1, -1 })
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else
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---@diagnostic disable-next-line:deprecated
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ns = vim.api.nvim_buf_add_highlight(bufnr, 0, hl_group, lnum - 1, 0, -1)
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end
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local remove_highlight = function()
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pcall(vim.api.nvim_buf_clear_namespace, bufnr, ns, 0, -1)
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end
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vim.defer_fn(remove_highlight, durationMs)
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end
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---@param module string Used as message if second param omitted
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---@param message string?
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function M.echo(module, message)
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if not message then
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message = module
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module = ''
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end
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local prefix = 'outline'
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if module ~= '' then
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prefix = prefix .. '.' .. module
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end
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local prefix_chunk = { '(' .. prefix .. ') ', 'WarningMsg' }
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-- For now we don't echo much, so add all to history
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vim.api.nvim_echo({ prefix_chunk, { message } }, true, {})
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end
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---@param t table?
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function M.table_has_content(t)
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return t and next(t) ~= nil
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end
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---@param t table|string?
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function M.str_or_nonempty_table(t)
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return type(t) == 'string' or M.table_has_content(t)
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end
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function M.table_to_str(t)
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local ret = ''
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for _, value in ipairs(t) do
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ret = ret .. tostring(value)
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end
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return ret
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end
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function M.str_to_table(str)
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local t = {}
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for i = 1, #str do
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t[i] = str:sub(i, i)
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end
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return t
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end
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--- Copies an array and returns it because lua usually does references
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---@generic T
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---@param t T[]
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---@return T[]
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function M.array_copy(t)
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local ret = {}
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for _, value in ipairs(t) do
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table.insert(ret, value)
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end
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return ret
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end
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--- Deep copy a table, deeply excluding certain keys
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function M.deepcopy_excluding(t, keys)
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local res = {}
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for key, value in pairs(t) do
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if not vim.tbl_contains(keys, key) then
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if type(value) == 'table' then
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res[key] = M.deepcopy_excluding(value, keys)
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else
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res[key] = value
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end
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end
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end
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return res
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end
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return M
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