zoriya/virtcolumn.nvim
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refactor: avoid unnecessary loops

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This commit is contained in:
wongxy
2022-07-12 21:30:43 +08:00
parent c54f81eca1
commit e23c9aa851
1 changed files with 6 additions and 2 deletions
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plugin/virtcolumn.lua
+6 -2
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@@ -57,6 +57,11 @@ local function _refresh()
api.nvim_buf_clear_namespace(curbuf, NS, 0, -1) api.nvim_buf_clear_namespace(curbuf, NS, 0, -1)
local win_width = api.nvim_win_get_width(0) - curwin_col_off()
items = vim.tbl_filter(function(item)
return win_width > item
end, items)
if #items == 0 then if #items == 0 then
return return
end end
@@ -69,14 +74,13 @@ local function _refresh()
-- Avoid flickering caused by winscrolled_timer -- Avoid flickering caused by winscrolled_timer
-- ↓↓↓↓↓↓↓↓↓↓↓ -- ↓↓↓↓↓↓↓↓↓↓↓
local lines = api.nvim_buf_get_lines(curbuf, offset, vim.fn.line "w$" + debounce, false) local lines = api.nvim_buf_get_lines(curbuf, offset, vim.fn.line "w$" + debounce, false)
local width = api.nvim_win_get_width(0) - curwin_col_off()
local tabstop = vim.opt.tabstop:get() local tabstop = vim.opt.tabstop:get()
local char = vim.g.virtcolumn_char or "▕" local char = vim.g.virtcolumn_char or "▕"
for i = 1, #lines do for i = 1, #lines do
for _, item in ipairs(items) do for _, item in ipairs(items) do
local line = lines[i]:gsub("\t", string.rep(" ", tabstop)) local line = lines[i]:gsub("\t", string.rep(" ", tabstop))
if width > item and api.nvim_strwidth(line) < item then if api.nvim_strwidth(line) < item then
api.nvim_buf_set_extmark(curbuf, NS, i + offset - 1, 0, { api.nvim_buf_set_extmark(curbuf, NS, i + offset - 1, 0, {
virt_text = { { char, "VirtColumn" } }, virt_text = { { char, "VirtColumn" } },
virt_text_pos = "overlay", virt_text_pos = "overlay",