104 lines
2.7 KiB
Lua
104 lines
2.7 KiB
Lua
local mapping = require('nonicons.mapping')
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local resolve = require('nonicons.resolve')
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---@param name string
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---@return string
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local function char(name)
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local code = mapping[name]
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if code then
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return vim.fn.nr2char(code)
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end
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return '?'
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end
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---@param t table<string, any>
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---@return string[]
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local function sorted_keys(t)
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local keys = {}
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for k in pairs(t) do
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keys[#keys + 1] = k
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end
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table.sort(keys)
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return keys
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end
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---@param t table<string, string>
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---@return table<string, string[]>
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local function invert(t)
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local inv = {}
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for k, v in pairs(t) do
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inv[v] = inv[v] or {}
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inv[v][#inv[v] + 1] = k
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end
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for _, list in pairs(inv) do
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table.sort(list)
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end
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return inv
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end
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return function()
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local lines = {} ---@type string[]
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local ext_by_icon = invert(resolve.ext_map)
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local fname_by_icon = invert(resolve.filename_map)
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local ft_by_icon = invert(resolve.ft_map)
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local icon_names = sorted_keys(mapping)
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lines[#lines + 1] = 'nonicons.nvim — icon reference'
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lines[#lines + 1] = string.rep('=', 72)
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lines[#lines + 1] = ''
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lines[#lines + 1] =
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string.format(' %-4s %-28s %-7s %s', 'ICON', 'NAME', 'CODE', 'MAPPED FROM')
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lines[#lines + 1] = string.rep('-', 72)
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local highlights = require('nonicons.highlights')
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local icon_line_start = #lines
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local icon_glyphs = {} ---@type string[]
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for _, name in ipairs(icon_names) do
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local sources = {} ---@type string[]
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if ext_by_icon[name] then
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for _, ext in ipairs(ext_by_icon[name]) do
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sources[#sources + 1] = 'ext:' .. ext
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end
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end
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if fname_by_icon[name] then
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for _, fname in ipairs(fname_by_icon[name]) do
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sources[#sources + 1] = 'file:' .. fname
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end
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end
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if ft_by_icon[name] then
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for _, ft in ipairs(ft_by_icon[name]) do
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sources[#sources + 1] = 'ft:' .. ft
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end
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end
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local glyph = char(name)
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local src_str = #sources > 0 and table.concat(sources, ', ') or ''
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lines[#lines + 1] =
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string.format(' %s %-28s U+%04X %s', glyph, name, mapping[name], src_str)
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icon_glyphs[#icon_glyphs + 1] = glyph
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end
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lines[#lines + 1] = ''
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lines[#lines + 1] = string.format('%d icons total', #icon_names)
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local buf = vim.api.nvim_create_buf(false, true)
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vim.api.nvim_buf_set_lines(buf, 0, -1, false, lines)
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local ns = vim.api.nvim_create_namespace('nonicons_hitest')
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for i, name in ipairs(icon_names) do
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local col_start = 2
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local col_end = col_start + #icon_glyphs[i]
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vim.api.nvim_buf_set_extmark(buf, ns, icon_line_start + i - 1, col_start, {
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end_col = col_end,
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hl_group = highlights.get(name),
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})
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end
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vim.bo[buf].modifiable = false
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vim.bo[buf].buftype = 'nofile'
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vim.bo[buf].bufhidden = 'wipe'
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vim.api.nvim_set_current_buf(buf)
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end
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