irc-mar-30.rb

require "minitest/autorun"
require "strscan"

class Scanner < StringScanner
  def between(left, right, occurence)
    # StringScanner expects Regexp instances
    left = Regexp.new(left)
    right = Regexp.new(right)

    # Skip ahead until we're in the right area
    occurence.times do
      skip_until(left)
    end

    # I'd probably want to improve this
    val = ""
    until eos? do
      break if check(right) 
      val += getch
    end

    # Reset incase we want to re-use this scanner
    reset
    val
  end
end

class TestScanner < Minitest::Test
  def test_between
    scanner = Scanner.new("this-is-a-string-to-scan")
    assert_equal "is", scanner.between("-", "-", 1)
    assert_equal "string", scanner.between("-", "-", 3)
  end
end