import scala.io.Source
 
val MAXLENGTH = 70
 
def process(filename: String) = {
    Source.fromFile(filename).getLines.map(_.trim).
      zipWithIndex.filter{case (line, _) => line.length >= MAXLENGTH}.
      map{case (line, num) => (filename, num, line)}.toList
}
 
println(args.flatMap(name => process(name)).mkString("\n"))

import scala.io.Source
val MAXLENGTH = 70
def process(filename: String) = 
  for {
    (line, lnum) <- Source.fromFile(filename).getLines.zipWithIndex
    if line.length - 1 > MAXLENGTH
  } println(filename+" line="+(lnum + 1)+"chars="+line.length)

import scala.io.Source
 
val MaxLength = 70
for (filename <- args)
  for ((line, lnum) <- Source.fromFile(filename).getLines.zipWithIndex)
    if (line.length - 1 > MaxLength)
      println(filename + " line=" + (lnum + 1) + " chars=" + line.length)