109 lines
3.3 KiB
Lua
109 lines
3.3 KiB
Lua
--[[ NOTHING INSIDE THIS FILE NEEDS TO BE EDITED BY THE USER. ]]
|
|
local vim = vim
|
|
|
|
-- Clear the highlighting.
|
|
vim.cmd('hi clear')
|
|
|
|
-- Set the background to dark.
|
|
vim.o.background = 'dark'
|
|
|
|
-- Disable automatic coloring for the IndentGuides plugin.
|
|
vim.g.indent_guides_auto_colors = 0
|
|
|
|
-- If the syntax has been enabled, reset it.
|
|
if vim.fn.exists('syntax_on') then vim.cmd('syntax reset') end
|
|
|
|
-- Determine which set of colors to use.
|
|
local use_hex_and_256 = string.find(vim.fn.expand('$TERM'), '256')
|
|
or vim.g.t_Co >= 256
|
|
or vim.fn.has('gui_running')
|
|
|
|
-- If we aren't using the hex and 256 colorset, then set the &t_Co variable to 16.
|
|
if not use_hex_and_256 then vim.g.t_Co = 16 end
|
|
|
|
-- These are constants for the indexes in the colors that were defined before.
|
|
local BIT_16 = 3
|
|
local BIT_256 = 2
|
|
local HEX = 1
|
|
|
|
-- Get the color value of a color variable, or "NONE" as a default.
|
|
local function get(color, index)
|
|
if type(color) == 'table' and color[index] then
|
|
return color[index]
|
|
elseif type(color) == 'string' then
|
|
return color
|
|
else
|
|
return "NONE"
|
|
end
|
|
end
|
|
|
|
-- Generate a `:highlight` command from a group and some attributes.
|
|
local function highlight(highlight_group, attributes) -- {{{ †
|
|
local highlight_cmd = {'hi! ', highlight_group}
|
|
local link = (type(attributes) == 'string' and attributes)
|
|
or attributes.link
|
|
|
|
if link then -- `highlight_group` is a link to another group.
|
|
highlight_cmd[3] = highlight_cmd[2] .. ' '
|
|
highlight_cmd[2] = 'link '
|
|
highlight_cmd[4] = link
|
|
else -- the `highlight_group` is uniquely defined.
|
|
local bg = attributes.bg
|
|
local fg = attributes.fg
|
|
local style = attributes.style
|
|
|
|
-- If using hex and 256-bit colors, then populate the gui* and cterm* args.
|
|
if use_hex_and_256 then highlight_cmd[#highlight_cmd + 1] =
|
|
' ctermbg=' .. get(bg, BIT_256)
|
|
.. ' ctermfg=' .. get(fg, BIT_256)
|
|
.. ' guibg=' .. get(bg, HEX)
|
|
.. ' guifg=' .. get(fg, HEX)
|
|
-- If using 16-bit colors, just populate the cterm* args.
|
|
else highlight_cmd[#highlight_cmd + 1] =
|
|
' ctermbg=' .. get(bg, BIT_16)
|
|
.. ' ctermfg=' .. get(fg, BIT_16)
|
|
end
|
|
|
|
-- This function appends `selected_attributes` to the end of the `highlight_cmd`.
|
|
local function append_style(selected_attributes)
|
|
highlight_cmd[#highlight_cmd + 1] = ' cterm=' .. selected_attributes
|
|
|
|
-- If we're using hex populate the gui* attr args.
|
|
if use_hex_and_256 then highlight_cmd[#highlight_cmd + 1] =
|
|
' gui=' .. selected_attributes
|
|
end
|
|
end
|
|
|
|
if type(style) == 'table' then
|
|
-- Concat all of the entries together with a comma between.
|
|
local style_all = table.concat(style, ',')
|
|
|
|
-- There will always be a cterm attr arg.
|
|
append_style(style_all)
|
|
|
|
-- There won't always be a `guisp`.
|
|
if style.color then highlight_cmd[#highlight_cmd + 1] =
|
|
' guisp=' .. get(style.color, HEX)
|
|
end
|
|
else append_style(style)
|
|
end
|
|
end
|
|
|
|
vim.cmd(table.concat(highlight_cmd))
|
|
end --}}} ‡
|
|
|
|
return function(Normal, highlights, terminal_ansi_colors)
|
|
-- Highlight the baseline.
|
|
highlight('Normal', Normal)
|
|
|
|
-- Highlight everything else.
|
|
for highlight_group, attributes in pairs(highlights) do
|
|
highlight(highlight_group, attributes)
|
|
end
|
|
|
|
-- Set the terminal colors.
|
|
for index, color in ipairs(terminal_ansi_colors) do
|
|
vim.g['terminal_color_' .. index] = get(color, HEX)
|
|
end
|
|
end
|