[Macluawn]

Possible, but it will look ugly with some texts. example:
T h i s i s the first line
This is the second line


But in general it's easy to make - Get the longest line, and then in a while loop adding a spaces in lines until it's the same length.

Код:

for(1...line amount)
  if(strlen(line(i)) > strlen(longestline)) 
    longestline = line;

for(1..line amount)
  while(strlen(line(i) >= strlen(longestline))
    add spaces using variable

too lazy to make a proper code.