do. I want to be able to access the next iterator while
reading a file.
Basically, I want to be able to collect the next 3 lines when I
encounter a certain line:
I find this the most readable way to do it, though using generator is
probably slower than just keeping track of the last 3 lines as you go
forward:
require ‘generator’
list = []
File.open(‘toto.txt’, ‘rb’) do |myFile|
g = Generator.new(myFile)
while g.next?
if g.next =~ /regExp/
3.times { list << g.next }
end
end
end
puts list