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local api = vim.api
local highlight = {}
--- Highlight the yanked region
--
--- use from init.vim via
--- au TextYankPost * lua require'vim.highlight'.on_yank()
--- customize highlight group and timeout via
--- au TextYankPost * lua require'vim.highlight'.on_yank("IncSearch", 500)
-- @param higroup highlight group for yanked region
-- @param timeout time in ms before highlight is cleared
-- @param event event structure
function highlight.on_yank(higroup, timeout, event)
event = event or vim.v.event
if event.operator ~= 'y' or event.regtype == '' then return end
higroup = higroup or "IncSearch"
timeout = timeout or 500
local bufnr = api.nvim_get_current_buf()
local yank_ns = api.nvim_create_namespace('')
api.nvim_buf_clear_namespace(bufnr, yank_ns, 0, -1)
local pos1 = vim.fn.getpos("'[")
local pos2 = vim.fn.getpos("']")
pos1 = {pos1[2] - 1, pos1[3] - 1 + pos1[4]}
pos2 = {pos2[2] - 1, pos2[3] - 1 + pos2[4]}
local region = vim.region(bufnr, pos1, pos2, event.regtype, event.inclusive)
for linenr, cols in pairs(region) do
api.nvim_buf_add_highlight(bufnr, yank_ns, higroup, linenr, cols[1], cols[2])
end
vim.defer_fn(
function() api.nvim_buf_clear_namespace(bufnr, yank_ns, 0, -1) end,
timeout
)
end
return highlight
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