6 replies to this topic

[Wing]

Hey guys, I brought this up inside another one of my threads but here it is again.
When I leave the <pat> empty ("") it returns an empty table, I'm hoping for it to split each letter up and not nothing...

function split(str,pat)
local t = {}
local fpat = "(.-)" .. pat
local last_end = 1
local s, e, cap = str:find(fpat, 1)
while s do
  if s ~= 1 or cap ~= "" then
  table.insert(t,cap)
  end
last_end = e+1
s, e, cap = str:find(fpat, last_end)
end
if last_end <= #str then
  cap = str:sub(last_end)
  table.insert(t, cap)
  end
return t
end

[Lyqyd]

Use this instead: "."

The period is a special operator for patterns that matches any single character.

[Bubba]

I'm confused by what you want. Do you want this function to split the string into separate characters if pat is left empty? If so then there is a handy function called string.gmatch(pat).

local example = "This is a string of characters"
local tExample = {}
for char in example:gmatch(".") do
  table.insert(tExample, char)
end

Now tExample has every character in example seperated.

[Wing]

Alright, lets try that, will edit the post with the results!

[Wing]

Ok well, "." didn't work....
command: textutils.serialize(w.split("lol I Win", "."))
returns: {[1]= "", [2]="", [3]="", [4]="", [5]="", [6]="", [7]="",}

[Lyqyd]

Don't use that split function. This should do the trick:

function stringToCharTable(str)
  local tab = {}
  for i = 1, #str do
    tab[i] = string.sub(str, i, i)
  end
  return tab
end

[Wing]

Thanks I'm sure that works I'll add it, but I still want to know why this isn't working, using 2 different function to split strings is weird, but will have to do!