GML String line break problem

[OverLogic]

if string_length(keyboard_string)<limit
{
    if string_length(input)==16
    {
        string_insert(input,"#",last_letter);
    }
    input = keyboard_string;
    input = string_letters(input);
    last_letter=input;
}

I am trying add a line break after i reach 16 letters so the 17 letter will be in the a line below.

 

[CMAllen]

Is this GMS1.4 or GMS2? GMS2 changed string parser formats to /r for a manual line break.

 

[OverLogic]

I am using 1.4

 

[OverLogic]

no answer yet

 

[DaMuffin]

I've never used "string_insert" before so I'm not too sure, but is "last_letter" a parameter or local variable?
Anyway, maybe something like this will work

///CREATE EVENT

number_of_lines = 1; //If you know how many lines there will be, then change this to that amount.
break_lines = "true";//Determines whether to even run the code that will break the string.

///ELSEWHERE

if break_lines=="true"
{
  if string_length(keyboard_string) < limit
  {
    for(var char_position = 0; char_position <= string_length(input); char_position++)
    {
      if char_position = 16*number_of_lines
      {
        string_insert(input,"#",char_position);
        number_of_lines++;
      }
      if char_position = string_length(input)
      {
        break_lines = "false";
      }
    }
  }
}

EDIT:
I am curious about the line

if string_length(keyboard_string) < limit

because if the string is longer than the limit, the the string won't be broken.