SpaceVim/lua/spacevim/lsp.lua

local M = {}

M.clients = {}
-- store the clients for different filetype
-- which can be called via vim.lsp.start_client()

function M.register(filetype, cmd)
  M.clients[filetype] = {
    ['cmd'] = cmd,
  }
end

local function spliteof(data, delimiter)
  local result = {}
  local from = 1
  local delim_from, delim_to = string.find(data, delimiter, from)
  while delim_from do
    table.insert(result, string.sub(data, from, delim_from - 1))
    from = delim_to + 1
    delim_from, delim_to = string.find(data, delimiter, from)
  end
  table.insert(result, string.sub(data, from))
  return result
end
--
-- if data.contents is a string and not empty
--        silent put =a:data
--        return 'markdown'
-- if data
function M.hover_callback(success, data)
  if not success then
    vim.api.nvim_command('call SpaceVim#util#echoWarn("Failed to retrieve hover information")')
    return
  end
  if type(data.contents) == 'table' then
    vim.api.nvim_command('leftabove split __lspdoc__')
    vim.api.nvim_command('set filetype=markdown.lspdoc')
    vim.api.nvim_command('setlocal nobuflisted')
    vim.api.nvim_command('setlocal buftype=nofile')
    vim.api.nvim_command('setlocal bufhidden=wipe')
    vim.api.nvim_buf_set_lines(0, 0, -1, 0, spliteof(data.contents.value, '\n'))
  elseif type(data.contents) == 'string' and data.contents ~= '' then
    -- for k, v in pairs(data) do
    -- print(k .. " - " ..  v)
    -- kind is filetype
    -- value is contents string
    -- end
    vim.api.nvim_command('leftabove split __lspdoc__')
    vim.api.nvim_command('set filetype=markdown.lspdoc')
    vim.api.nvim_command('setlocal nobuflisted')
    vim.api.nvim_command('setlocal buftype=nofile')
    vim.api.nvim_command('setlocal bufhidden=wipe')
    vim.api.nvim_buf_set_lines(0, 0, -1, 0, spliteof(data.contents, '\n'))
  elseif type(data.contents.language) ~= 'string' and data.contents.language ~= '' then
    vim.api.nvim_command('leftabove split __lspdoc__')
    vim.api.nvim_command('set filetype=markdown.lspdoc')
    vim.api.nvim_command('setlocal nobuflisted')
    vim.api.nvim_command('setlocal buftype=nofile')
    vim.api.nvim_command('setlocal bufhidden=wipe')
    vim.api.nvim_buf_set_lines(0, 0, -1, 0, { '```' .. data.contents.language })
    vim.api.nvim_buf_set_lines(0, 1, -1, 0, spliteof(data.contents, '\n'))
    vim.api.nvim_buf_set_lines(0, -1, -1, 0, { '```' })
  elseif type(data.contents.kind) ~= 'string' and data.contents.kind ~= '' then
    vim.api.nvim_command('leftabove split __lspdoc__')
    vim.api.nvim_command('set filetype=' .. data.contents.kind .. '.lspdoc')
    vim.api.nvim_command('setlocal nobuflisted')
    vim.api.nvim_command('setlocal buftype=nofile')
    vim.api.nvim_command('setlocal bufhidden=wipe')
    vim.api.nvim_buf_set_lines(0, 0, -1, 0, spliteof(data.contents, '\n'))
  else
    print('No hover information found')
  end
  -- print(type(data))
end
return M