回复：list files in dir recursively

["R.wen" <rwen2012@...>]

how about this version?

local function listfile(dir, fpl)
 for entry in lfs.dir(dir) do
  if entry ~= "." and entry ~= ".." then
   local ne =  dir..'\\'..entry
   if lfs.attributes(ne).mode == "directory" then
    listfile(ne, fpl)
   else --file
    fpl[#fpl + 1] = ne
   end
  end
 end
end

local fpl = {}
listfile(dir, fpl)

for _, n in pairs(fpl) do
 print(n)
end

------------------ 原始邮件 ------------------

发件人: "p. shkadzko";<p.shkadzko@gmail.com>;

发送时间: 2017年2月22日(星期三) 上午8:36

收件人: "lua-l"<lua-l@lists.lua.org>;

主题: list files in dir recursively

Hi guys,

Here is a function that finds all files in nested dirs and returns a table of file paths. I can't figure out how to keep the table variable inside the function. For example.

require 'paths'

require 'lfs'

fpaths = {}

function isdir(path)

  return lfs.attributes(path)["mode"] == "directory"

end

function listfiles(dir)

  local files = paths.dir(dir)

  for i=1,#files do

    if files[i] ~= '.' and files[i] ~= '..' then

      next_dir = dir..'/'..files[i]

      if isdir(next_dir) then

        listfiles(next_dir)

      else

        table.insert(fpaths,files[i])

      end

    end

  end

  return fpaths

end

If I include fpaths inside listfiles it will be overwritten with each new recursive call. I tried to create a closure but I think I just do not understand how they work in lua. 

Can somebody help me out with this?

Best,

Pavel