How to find the length of a text file

kylergs, on 16 April 2012 - 04:50 PM said:

I was wondering if there was a way to find the length of a text file.
The idea is to be able to scroll though any code/text file and print each line on the screen, I can already scroll though a text document if I know its length but I want it to work with any program.
I am relevantly confident with lua otherwise.

randomstring = "troreolfoifndsofmnwoifinsop"
length = string.len(randomstring)
print(length)

kylergs, on 16 April 2012 - 05:32 PM said:

I meant to find the length of a text file or program.

kylergs, on 16 April 2012 - 05:32 PM said:

I meant to find the length of a text file or program.

local file = io.open("textfile.txt", "r")
local randomstring = file:readAll()

filename = "file"
file = fs.open(filename, "r")
length = 0
while true do
line = file.readLine()
if not line then break else length = length + 1 end
end
file.close()
print(length)

file = io.open("filename", "r")
sFile = file:read("*a") -- read entire file to var sFile
file:close()
nLength = #sFile -- Captures the length of sFile in nLength
print (nLength)

local tLines = {}
local file = io.open("filename", "r" )
  local sLine = file:read()
  while sLine do
   table.insert( tLines, sLine )
   sLine = file:read()
  end
  file:close()

print(#tLines)

local file = io.open("file", "r")
local length = 0
while file:read() ~= nill do
  length = length + 1
end
file:close()
print(length)

local file = io.open("file", "r")
local contents = file:read("*a")
file:close()
local _, num = string.gsub(contents,"n","n")
print(num+1)