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102 lines
2.8 KiB
Lua
102 lines
2.8 KiB
Lua
local path = require "fzf-lua.path"
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local core = require "fzf-lua.core"
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local utils = require "fzf-lua.utils"
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local config = require "fzf-lua.config"
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local M = {}
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local fzf_fn = function (cb)
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local opts = {}
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opts.lang = config.globals.helptags.lang or vim.o.helplang
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opts.fallback = utils._if(config.globals.helptags.fallback ~= nil, config.globals.helptags.fallback, true)
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local langs = vim.split(opts.lang, ',', true)
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if opts.fallback and not vim.tbl_contains(langs, 'en') then
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table.insert(langs, 'en')
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end
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local langs_map = {}
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for _, lang in ipairs(langs) do
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langs_map[lang] = true
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end
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local tag_files = {}
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local function add_tag_file(lang, file)
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if langs_map[lang] then
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if tag_files[lang] then
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table.insert(tag_files[lang], file)
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else
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tag_files[lang] = {file}
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end
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end
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end
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local help_files = {}
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local all_files = vim.fn.globpath(vim.o.runtimepath, 'doc/*', 1, 1)
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for _, fullpath in ipairs(all_files) do
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local file = path.tail(fullpath)
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if file == 'tags' then
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add_tag_file('en', fullpath)
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elseif file:match('^tags%-..$') then
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local lang = file:sub(-2)
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add_tag_file(lang, fullpath)
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else
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help_files[file] = fullpath
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end
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end
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local add_tag = function(t, fzf_cb, co)
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--[[ local tag = string.format("%-58s\t%s",
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utils.ansi_codes.blue(t.name),
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utils._if(t.name and #t.name>0, path.basename(t.name), '')) ]]
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local tag = ("%s %s"):format(utils.ansi_codes.magenta(t.name), t.filename)
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fzf_cb(tag, function()
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coroutine.resume(co)
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end)
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end
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coroutine.wrap(function ()
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local co = coroutine.running()
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local tags_map = {}
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local delimiter = string.char(9)
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for _, lang in ipairs(langs) do
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for _, file in ipairs(tag_files[lang] or {}) do
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local lines = vim.split(utils.read_file(file), '\n', true)
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for _, line in ipairs(lines) do
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-- TODO: also ignore tagComment starting with ';'
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if not line:match'^!_TAG_' then
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local fields = vim.split(line, delimiter, true)
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if #fields == 3 and not tags_map[fields[1]] then
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add_tag({
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name = fields[1],
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filename = help_files[fields[2]],
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cmd = fields[3],
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lang = lang,
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}, cb, co)
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tags_map[fields[1]] = true
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-- pause here until we call coroutine.resume()
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coroutine.yield()
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end
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end
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end
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end
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end
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cb(nil)
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end)()
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end
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M.helptags = function(opts)
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opts = config.normalize_opts(opts, config.globals.helptags)
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if not opts then return end
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opts.fzf_opts['--no-multi'] = ''
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opts.fzf_opts['--preview-window'] = 'hidden:right:0'
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core.fzf_exec(fzf_fn, opts)
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end
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return M
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