Find all letters in a word?

so what im trying to do is find the position of each of a certain letter in a word and then return it in a number, ive tryed so many different methods but it always seems to throw me an error or go into a infinite loop which is obviously not wanted, if anyone could help would be much appreciated

I'm not sure of what you're trying to do, but I'm sure that you'll need the string library (take a look at the find and match methods).

Ive allready looked through all that before i posted, for example ive got the word elephant and i want to find all of the letter 'e' through out the word so in this case its letter 1 and 3, so i want a function that returns the number of each of the 'e' in the word. i tryed string.find but it seems to only give me one of them so…

Well, there might be some easier/better way, but this is what I came out with:

local function findAll(s, pattern, plain)
  local i = 1
  local result = {}
  while i < #s do
    local pos = string.find(s, pattern, i, plain)
    if not pos then
	  break
    end
    table.insert(result, pos)
    i = pos + 1
  end
  return result
end

It works like string.find but it returns a table with the starting positions of every match of the pattern.

So, you can use it like:

for _,i in ipairs(findAll("elephant", "e")) do
  print(i)
end

It will print 1 and 3.

Ahh thank you, worked amazingly!