#!/usr/bin/env ruby

#
# this script is inspired by the various incarnations of
# a similar `pick` utility developed by Kernighan & Pike
# in their seminal "The UNIX Programming Environment"...
#

lib = File.expand_path('../lib', __dir__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'consenter'

nul = ARGV.delete('-0') || ARGV.delete('-print0')

consented = ARGF.lazy.map(&:chomp).each_consented('Pick "%s"?').to_a

if nul
  print consented.join("\0")
else
  puts consented
end

# That's all Folks!