example - "10,12-14,15-".split

gistfile1.groovy

import java.util.regex.Matcher
"10,12-14,15-".split(',').each {
  switch(it) {
    case ~/(\d+)\-(\d+)/:
      def from = Matcher.lastMatcher[0][1].toInteger()
      def to   = Matcher.lastMatcher[0][2].toInteger()
      println "from=${from}, to=${to}"
      break
    case ~/(\d+)\-/:
      def from = Matcher.lastMatcher[0][1].toInteger()
      println "from=${from}"
      break
    case ~/(\d+)/:
      def line = Matcher.lastMatcher[0][1].toInteger()
      println "line=${line}"
      break
    default:
       pritnln '??'
  }
}