Split on different newlines

Question

Right now I\'m doing a split on a string and assuming that the newline from the user is \\r\\n like so:

string.split(/\\r\\n/)
<         


        

Answer 1

Another option is to use String#chomp, which also handles newlines intelligently by itself.

You can accomplish what you are after with something like:

lines = string.lines.map(&:chomp)

Or if you are dealing with something large enough that memory use is a concern:

.each_line do |line|
  line.chomp!
  #  do work..
end

Performance isn't always the most important thing when solving this kind of problem, but it is worth noting the chomp solution is also a bit faster than using a regex.

On my machine (i7, ruby 2.1.9):

Warming up --------------------------------------
           map/chomp    14.715k i/100ms
  split custom regex    12.383k i/100ms
Calculating -------------------------------------
           map/chomp    158.590k (± 4.4%) i/s -    794.610k in   5.020908s
  split custom regex    128.722k (± 5.1%) i/s -    643.916k in   5.016150s