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default ansi colors

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This commit is contained in:
Barrett Ruth 2025-10-05 12:38:49 -04:00
parent f5a72a3a8f
commit fa2660455a
2 changed files with 55 additions and 73 deletions
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98
lua/cp/ui/ansi.lua
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@ -10,10 +10,46 @@
local M = {}
local logger = require('cp.log')
local dyn_hl_cache = {}
local ANSI_TERMINAL_COLOR_CODE_FALLBACK = {
[0] = '#000000',
[1] = '#800000',
[2] = '#008000',
[3] = '#808000',
[4] = '#000080',
[5] = '#800080',
[6] = '#008080',
[7] = '#c0c0c0',
[8] = '#808080',
[9] = '#ff0000',
[10] = '#00ff00',
[11] = '#ffff00',
[12] = '#0000ff',
[13] = '#ff00ff',
[14] = '#00ffff',
[15] = '#ffffff',
}
local function xterm_to_hex(n)
if n >= 0 and n <= 15 then
local key = 'terminal_color_' .. n
return vim.g[key] or ANSI_TERMINAL_COLOR_CODE_FALLBACK[n]
end
if n >= 16 and n <= 231 then
local c = n - 16
local r = math.floor(c / 36) % 6
local g = math.floor(c / 6) % 6
local b = c % 6
local function level(x)
return x == 0 and 0 or 55 + 40 * x
end
return ('#%02x%02x%02x'):format(level(r), level(g), level(b))
end
local l = 8 + 10 * (n - 232)
return ('#%02x%02x%02x'):format(l, l, l)
end
---@param s string|table
---@return string
function M.bytes_to_string(s)
@ -40,24 +76,7 @@ local function ensure_hl_for(fg, bold, italic)
suffix = fg.name
elseif fg and fg.kind == 'xterm' then
suffix = ('X%03d'):format(fg.idx)
local function xterm_to_hex(n)
if n >= 0 and n <= 15 then
local key = 'terminal_color_' .. n
return vim.g[key]
end
if n >= 16 and n <= 231 then
local c = n - 16
local r = math.floor(c / 36) % 6
local g = math.floor(c / 6) % 6
local b = c % 6
local function level(x)
return x == 0 and 0 or 55 + 40 * x
end
return ('#%02x%02x%02x'):format(level(r), level(g), level(b))
end
local l = 8 + 10 * (n - 232)
return ('#%02x%02x%02x'):format(l, l, l)
end
opts.fg = xterm_to_hex(fg.idx) or 'NONE'
elseif fg and fg.kind == 'rgb' then
suffix = ('Rgb%02x%02x%02x'):format(fg.r, fg.g, fg.b)
@ -256,31 +275,24 @@ end
---@return nil
function M.setup_highlight_groups()
local color_map = {
Black = vim.g.terminal_color_0,
Red = vim.g.terminal_color_1,
Green = vim.g.terminal_color_2,
Yellow = vim.g.terminal_color_3,
Blue = vim.g.terminal_color_4,
Magenta = vim.g.terminal_color_5,
Cyan = vim.g.terminal_color_6,
White = vim.g.terminal_color_7,
BrightBlack = vim.g.terminal_color_8,
BrightRed = vim.g.terminal_color_9,
BrightGreen = vim.g.terminal_color_10,
BrightYellow = vim.g.terminal_color_11,
BrightBlue = vim.g.terminal_color_12,
BrightMagenta = vim.g.terminal_color_13,
BrightCyan = vim.g.terminal_color_14,
BrightWhite = vim.g.terminal_color_15,
Black = vim.g.terminal_color_0 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[0],
Red = vim.g.terminal_color_1 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[1],
Green = vim.g.terminal_color_2 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[2],
Yellow = vim.g.terminal_color_3 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[3],
Blue = vim.g.terminal_color_4 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[4],
Magenta = vim.g.terminal_color_5 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[5],
Cyan = vim.g.terminal_color_6 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[6],
White = vim.g.terminal_color_7 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[7],
BrightBlack = vim.g.terminal_color_8 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[8],
BrightRed = vim.g.terminal_color_9 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[9],
BrightGreen = vim.g.terminal_color_10 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[10],
BrightYellow = vim.g.terminal_color_11 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[11],
BrightBlue = vim.g.terminal_color_12 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[12],
BrightMagenta = vim.g.terminal_color_13 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[13],
BrightCyan = vim.g.terminal_color_14 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[14],
BrightWhite = vim.g.terminal_color_15 or ANSI_TERMINAL_COLOR_CODE_FALLBACK[15],
}
if vim.tbl_count(color_map) < 16 then
logger.log(
'ansi terminal colors (vim.g.terminal_color_*) not configured. ANSI colors will not display properly.',
vim.log.levels.WARN
)
end
local combinations = {
{ bold = false, italic = false },
{ bold = true, italic = false },