98 lines
2.6 KiB
Lua
98 lines
2.6 KiB
Lua
-- code snippet from 'stevearc/aerial.nvim'
|
|
local str_to_kind = require('outline.symbols').str_to_kind
|
|
local config = {}
|
|
|
|
local M = {
|
|
name = 'man',
|
|
}
|
|
|
|
M.fetch_symbols_sync = function(bufnr)
|
|
bufnr = bufnr or 0
|
|
local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, true)
|
|
local items = {}
|
|
local last_header
|
|
local prev_lnum = 0
|
|
local prev_line = ''
|
|
local function finalize_header()
|
|
if last_header then
|
|
last_header.range['end'].line = prev_lnum - 1
|
|
last_header.range['end'].character = prev_line:len()
|
|
end
|
|
end
|
|
for lnum, line in ipairs(lines) do
|
|
local header = line:match('^[A-Z].+')
|
|
local padding, arg = line:match('^(%s+)(-.+)')
|
|
if header and lnum > 1 then
|
|
finalize_header()
|
|
local item = {
|
|
kind = str_to_kind['Interface'],
|
|
name = header,
|
|
level = 0,
|
|
range = {
|
|
start = { line = lnum - 1, character = 0 },
|
|
['end'] = { line = lnum - 1, character = 10000 },
|
|
},
|
|
}
|
|
item.selectionRange = item.range
|
|
if
|
|
not config.post_parse_symbol
|
|
or config.post_parse_symbol(bufnr, item, {
|
|
backend_name = 'man',
|
|
lang = 'man',
|
|
})
|
|
~= false
|
|
then
|
|
last_header = item
|
|
table.insert(items, item)
|
|
end
|
|
elseif arg then
|
|
local item = {
|
|
kind = str_to_kind['Interface'],
|
|
name = arg,
|
|
level = last_header and 1 or 0,
|
|
parent = last_header,
|
|
range = {
|
|
start = { line = lnum - 1, character = padding:len() },
|
|
['end'] = { line = lnum - 1, character = line:len() },
|
|
},
|
|
}
|
|
item.selectionRange = item.range
|
|
if
|
|
not config.post_parse_symbol
|
|
or config.post_parse_symbol(bufnr, item, {
|
|
backend_name = 'man',
|
|
lang = 'man',
|
|
})
|
|
~= false
|
|
then
|
|
if last_header then
|
|
last_header.children = last_header.children or {}
|
|
table.insert(last_header.children, item)
|
|
else
|
|
table.insert(items, item)
|
|
end
|
|
end
|
|
end
|
|
prev_lnum = lnum
|
|
prev_line = line
|
|
end
|
|
finalize_header()
|
|
return items
|
|
end
|
|
|
|
---@return boolean, table?
|
|
function M.supports_buffer(bufnr)
|
|
local ft = vim.bo[bufnr].filetype
|
|
return ft == 'man', { ft = ft, buf = bufnr }
|
|
end
|
|
|
|
---@param on_symbols fun(symbols?:outline.ProviderSymbol[], opts?:table)
|
|
---@param opts table
|
|
---@param info table?
|
|
function M.request_symbols(on_symbols, opts, info)
|
|
local symbols = M.fetch_symbols_sync(info.buf) ---@diagnostic disable-line
|
|
on_symbols(symbols, opts)
|
|
end
|
|
|
|
return M
|