lualine.nvim/lua/lualine/utils/utils.lua

55 lines
1.6 KiB
Lua

-- Copyright (c) 2020-2021 shadmansaleh
-- MIT license, see LICENSE for more details.
local M = {}
-- Note for now only works for termguicolors scope can be bg or fg or any other
-- attr parameter like bold/italic/reverse
function M.extract_highlight_colors(color_group, scope)
if vim.fn.hlexists(color_group) == 0 then return nil end
local color = vim.api.nvim_get_hl_by_name(color_group, true)
if color.background ~= nil then
color.bg = string.format('#%06x', color.background)
color.background = nil
end
if color.foreground ~= nil then
color.fg = string.format('#%06x', color.foreground)
color.foreground = nil
end
if scope then return color[scope] end
return color
end
-- remove empty strings from list
function M.list_shrink(list)
local new_list = {}
for i = 1, #list do
if list[i] and #list[i] > 0 then table.insert(new_list, list[i]) end
end
return new_list
end
-- Check if a auto command is already defined
local function autocmd_is_defined(event, patern, command_str)
return vim.api.nvim_exec(string.format("au lualine %s %s",
event, patern), true):find(command_str) ~= nil
end
-- Define a auto command if it's not already defined
function M.define_autocmd(event, patern, cmd)
if not cmd then cmd = patern; patern = '*' end
if not autocmd_is_defined(event, patern, cmd) then
vim.cmd(string.format("autocmd lualine %s %s %s", event, patern, cmd))
end
end
-- Check if statusline is on focused window or not
function M.is_focused()
return tonumber(vim.g.actual_curwin) == vim.fn.win_getid()
end
function M.charAt(str, pos)
return string.char(str:byte(pos))
end
return M