nonicons.nvim/lua/nonicons/hi-test.lua
2026-02-23 17:26:04 -05:00

87 lines
2.2 KiB
Lua

local mapping = require('nonicons.mapping')
local resolve = require('nonicons.resolve')
---@param name string
---@return string
local function char(name)
local code = mapping[name]
if code then
return vim.fn.nr2char(code)
end
return '?'
end
---@param t table<string, any>
---@return string[]
local function sorted_keys(t)
local keys = {}
for k in pairs(t) do
keys[#keys + 1] = k
end
table.sort(keys)
return keys
end
---@param t table<string, string>
---@return table<string, string[]>
local function invert(t)
local inv = {}
for k, v in pairs(t) do
inv[v] = inv[v] or {}
inv[v][#inv[v] + 1] = k
end
for _, list in pairs(inv) do
table.sort(list)
end
return inv
end
return function()
local lines = {} ---@type string[]
local ext_by_icon = invert(resolve.ext_map)
local fname_by_icon = invert(resolve.filename_map)
local ft_by_icon = invert(resolve.ft_map)
local icon_names = sorted_keys(mapping)
lines[#lines + 1] = 'nonicons.nvim — icon reference'
lines[#lines + 1] = string.rep('=', 72)
lines[#lines + 1] = ''
lines[#lines + 1] =
string.format(' %-4s %-28s %-7s %s', 'ICON', 'NAME', 'CODE', 'MAPPED FROM')
lines[#lines + 1] = string.rep('-', 72)
for _, name in ipairs(icon_names) do
local sources = {} ---@type string[]
if ext_by_icon[name] then
for _, ext in ipairs(ext_by_icon[name]) do
sources[#sources + 1] = 'ext:' .. ext
end
end
if fname_by_icon[name] then
for _, fname in ipairs(fname_by_icon[name]) do
sources[#sources + 1] = 'file:' .. fname
end
end
if ft_by_icon[name] then
for _, ft in ipairs(ft_by_icon[name]) do
sources[#sources + 1] = 'ft:' .. ft
end
end
local src_str = #sources > 0 and table.concat(sources, ', ') or ''
lines[#lines + 1] =
string.format(' %s %-28s U+%04X %s', char(name), name, mapping[name], src_str)
end
lines[#lines + 1] = ''
lines[#lines + 1] = string.format('%d icons total', #icon_names)
local buf = vim.api.nvim_create_buf(false, true)
vim.api.nvim_buf_set_lines(buf, 0, -1, false, lines)
vim.bo[buf].modifiable = false
vim.bo[buf].buftype = 'nofile'
vim.bo[buf].bufhidden = 'wipe'
vim.api.nvim_set_current_buf(buf)
end