There is a chance that you can learn whether the folder exists implicitly from an attempt to use it. If you expect it to exist and be writable to you, then create a temporary file there and if the that succeeds, the folder exists. If it fails, you might not be able to distinguish a non-existent folder from insufficient permissions, of course.
io.exists(filename) print(io.exists(moretext.txt) and Yes, you’re right (as usual)! or No, you’re wasting your time, Sir!) Tests for file filename’s existence and returns a boolean accordingly. io.size(filename), io.exists io.exists (path) Checks to see if a given file or folder exists. If it exists, it’ll return the Lua true boolean value, otherwise false. See lfs.attributes() for a cross-platform solution. Example, io .exists (path) Checks to see if a given file or folder exists. If it exists, it’ll return the Lua true boolean value, otherwise false. See lfs.attributes () for a cross-platform solution.
io – Check if directory exists in lua? – Stack Overflow, Check if a file exists with Lua – Stack Overflow, io – Check if directory exists in lua? – Stack Overflow, Manual:Lua Functions – Mudlet, function io .exists (file) local f = io.open (file) if f then: io.close (f) return true: end: return false: end–Splits a string: function string:split (delimiter) local result = { } local from = 1: local delim_from, delim_to = string.find ( self, delimiter, from ) while delim_from do: table.insert ( result, string.sub ( self, from , delim_from-1) ) from = delim_to + 1, 9/30/2012 · by Manni » Sun Sep 30, 2012 6:05 pm. You’ll want to use io.exists () in conjunction with an if statement. Here’s how I use it with in one of my scripts: Code: | [select all] lua. if io .exists (getMudletHomeDir ().. /amb ..amblog.cYear) then table. load (getMudletHomeDir ().. /amb ..amblog.cYear, amblog.Amb) end.
This script needs a string.split() function (which I have slightly modified to return a table and the number of fields) and an io .exists() function: function string.split(inputstr, sep) — https://stackoverflow.com/questions/1426954/split-string-in- lua if sep == nil then sep = %s end local t={} local i=1 for str in string.gmatch(inputstr, ([^..sep..]+)) do t[i] = str i = i + 1 end if i>1 then return t,i else return inputstr end end function io.
9/7/2016 · Code: Select all. if io.exists (/home/vadi/Desktop/file.tx) then echo (This file exists!) else echo (This file doesn’t exist.) end. No, a file and a window are completely different things, and there is no way in the world for Lua to detect if a window is open in Windows.
if io. exists ( /bdiot.cnf ) then: local dat, res, err = json. decode (io. readFile ( /bdiot.cnf )) if res then return dat end: end: for i = 1, 3 do–????: local header, url = getHeader (host, ak, sk, reg ) local code, head, body = httpv2. request ( POST , url, 10000, nil, data, 2, nil, header) log. info ( BaiDu?????????: , body) if body then, row. lua Lua | 20 min ago create new paste / syntax languages / archive / faq / tools / night mode / api / scraping api / pro
