I am using open3 to pass STDIN to a program, and then read and parse STDOUT. My program expects an argument in the form of e0, e1 e2, etc.
Everytime a new argument is given, the STDOUT changes. I don't know how to pass the next argument after parsing the first result which will give the next number to pass as an argument. Here is my code:
require 'open3'
require 'state_machines'
#this is for the first command e0 only
cmd = ('./pos.tx')
status1 = ''
puts "Step 1: #{cmd}"
Open3.pipeline_rw(cmd) {|stdin, stdout, wait_thrs|
stdin.write "e0\n"
stdin.close
#
status1 = stdout.read
lines3 = status1.match(/Ee\s+(.*)\s+/)
@next_states = status1.match(/\d+/)
event = status1.match(/\s+\D+\s+\n/)
#puts lines3
puts @next_states
puts event
}
The next argument is stored in @next_states, and can be one number or many numbers. How can I use the elements of this array to continue to the next part of the program and parse again?
